La altura h sobre el nivel del suelo (en pies) de un cohete de juguete, t segundos después de ser lanzado, está dada por h = -16t2 + 120t. ¿Cuándo estará el cohete a 180 pies sobre el suelo?

Answers

Answer 1

Answer:

The solutions are

t=2.07 sec  and t=5.43 sec

Step-by-step explanation:

The question in English

The height h above ground level (in feet) of a toy rocket, t seconds after it is launched, is given by h = -16t2 + 120t. When will the rocket be 180 feet above the ground?

we have

[tex]h=-16t^{2}+120t[/tex] -----> equation A

[tex]h=180[/tex] -----> equation B

equate the equation A and equation B

[tex]180=-16t^{2}+120t[/tex] ------> equation C

we know that

The solution of the equation C is equal to the x-coordinate of the intersection point of the graph equation A and the graph of the equation B

so

using a graphing tool

The solutions are

t=2.07 sec  and t=5.43 sec

see the attached figure to better understand the problem

La Altura H Sobre El Nivel Del Suelo (en Pies) De Un Cohete De Juguete, T Segundos Despus De Ser Lanzado,

Related Questions


What is the distance between A and B? Round your answer to the nearest tenth

Answers

The answer is 6.4. Hope this was helpful!

Using the two points and the distance formula

(-1,5) (4,1)

Distance = √(4 +1)^2 + (1 -5)^2

Distance = √5^2 + -4^2)

Distance = √25 + 16

Distance = √41

Distance = 6.4

Can someone explain this to me?

Answers

sure !! pretty sure it wants you to distribute in each of your answer choices to get the functions and then match the function to the graph because the answer choices now are factored and harder to work with. to be honest once you find your functions after distributing i would just use a graphing calculator website like desmos.com and input each function to see which graph looks like the one shown

Answer:

(x^-1)(x+3)

Step-by-step explanation:

A

What are the square roots of 64/144 ?

−4/12 and 4/12

−32/72 and 32/72

−8/12 and 8/12

−4/9 and 4/9

Answers

Answer: third option

Step-by-step explanation:

To solve the problem you must apply the proccedure shown below:

- Descompose the numerator and the denominator of the given fraction into its prime numbers:

[tex]64=2*2*2*2*2*2\\144=2*2*2*2*3*3[/tex]

Then you can rewrite:

[tex]64=2^6\\144=2^4*3^2[/tex]

Then:

[tex]\±\sqrt{\frac{{2^6}}{{2^4*3^2}}}=\±\frac{2^3}{2^2*3}=\±\frac{8}{4*3}=\±\frac{8}{12}[/tex]

Therefore, the answer is: [tex]-\frac{8}{12}\ and\ \frac{8}{12}[/tex]

Answer:

The correct answer is option 3

-8/12 and 8/12

Step-by-step explanation:

It is given that square roots of 64/144

The given number is a fraction.

The numerator of  the square root and denominator both are perfect squares. So it is easy to find the square root of given number

To find the square root of 64/144

we have , √64 = ±8 and 144 = ±12

√(64/144) = ± 8/12

Therefore, √(64/144) = 8/12 or √(64/144) = -8/12

Therefore the correct answer is option 3

There are 9 players on a baseball team. After the game each player high-fives once with everyone else. How many high-fives were given?

Answers

Answer:

32

Step-by-step explanation:

Give each player a letter.

a, b, c, d, e, f, g, h, i

Each player high fives each other once.

a: b, c, d, e, f, g, h, i

b: c, d, e, f, g, h, i

c: d, e, f, g, h, i

d: e, f, g, h, i

f: g, h, i

g: h, i

h: i

Remember that you do not recount high-fives (as each player only gives it to another player once). Add the amount of high fives by counting.

32 is your answer.

~

Help me plz I don't know the choices it could be

Answers

Answer:   544 cm²

Step-by-step explanation:

There are 5 sections to the tent:

Front (triangle):  A = [tex]\frac{1}{2}[/tex] · b · hBack (triangle): same dimensions as FrontBase (rectangle): A = L · wLeft Side (Rectangle): A = L · wRight side (rectangle): same dimensions as Left Side

Total Surface Area = Front & Back  +   Base  +  Sides

                                =  2[[tex]\frac{1}{2}[/tex](12 · 8)]     +  (12 · 14) + 2(14 · 10)

                                =        96            +     168    +  280

                                =  544

In a plane, if one of two _____ lines is perpendicular to another line, the other of the two lines is perpendicular to that line. A. perpendicular B. parallel C. congruent D. equal

Answers

Answer:

A

Step-by-step explanation:

If a parallel line is perpendicular to the other line, the line parallel to the first line is also perpendicular to that line.

Can someone help me out with my algebra one

Answers

Answer:

y = (-1)*2^(x + 1)

Step-by-step explanation:

This one is not a line. It is something raised to a power. In addition, there is an ugly minus sign somewhere.

First of all, every answer is some sort of power of 2. All of them are 2^x but we don't exactly know how x words. It is not a simple y = 2^x because the first one is - 4 not - 2.

So there is an extra power somehow.

Try

y = 2^(x + 1) That looks promising

x = 1

y = 2^(1 + 1)

y = 2^2

y = 4

===============

Try another one

x = 2

y = 2^(2 + 1)

y = 2^3

y = 8

==============

I think you'll find that the other two are well behaved. and come to the answer (except for the minus) as they should.

What about that minus.

y = (-1)*2^(x + 1) should give a minus y value for any term.

(1,-4) (2,-8)

(-8+4)/(2-1)= -4/1= -4

y + 4 = -4(x - 1)

y + 4 = -4x + 4

y = -4x

the answer is linear

Which number is the same as ?

Answers

plz give more info

so I can help u

Answer:

what you trying to say??

Step-by-step explanation:

or each algebraic equation, select the property that could be used to solve it x-3=-5 , 6x=72 , x/5=3

Answers

x - 3 = -5

(Addition Property of Equality)

6x = 72

(Division Property of Equality)

x/5 = 3

(Multiplication Property of Equality)

Can I please have Brainliest?

Answer:x - 3 = -5

Addition Property of Equality  

6x = 72

Multiplication Property of Equality (Division Property of Equality is not an option.)

x/5 = 3

Multiplication Property of Equality

What scientific value for n will make this equation true?
(4.8 × 10–3)(n) = 9.6 × 109

Answers

Answer:

[tex]n=2*10^{12}[/tex]

Step-by-step explanation:

we have

[tex](4.8*10^{-3})(n)=9.6*10^{9}[/tex]

Solve for n

That means-----> isolate the variable n

Divide by [tex](4.8*10^{-3})[/tex] both sides

[tex]n=\frac{9.6*10^{9}}{4.8*10^{-3}}\\\\n=\frac{9.6}{4.8}*10^{(9+3)}\\ \\ n=2*10^{12}[/tex]

Answer:

The value of [tex]n=2\times 10^{12}[/tex]  which make equation true.

Step-by-step explanation:

Given : Expression [tex](4.8\times 10^{-3})(n)=9.6\times 10^9[/tex]

To find : What scientific value for n will make this equation true?

Solution :

[tex](4.8\times 10^{-3})(n)=9.6\times 10^9[/tex]

Solve for n,

[tex]n=\frac{9.6\times 10^9}{4.8\times 10^{-3}}[/tex]  

[tex]n=\frac{9.6}{4.8}\times 10^{9+3}[/tex]  

[tex]n=2\times 10^{12}[/tex]  

Therefore, The value of [tex]n=2\times 10^{12}[/tex]  which make equation true.

The difference of a and b is?
-always rational
-sometimes rational
-never rational
The product of a and b is ?
- always rational
- sometimes rational
- never rational
the square root of ab is?
- always rational
- sometimes rational
- never rational

Answers

Answer:

sometimes

sometimes

sometimes

Which number has a 9 that is one tenth the value of the 9 in 296?

Answers

Answer: What are the other numbers that we have to compare

Step-by-step explanation: And if yall thnk im trying to get points im not but i will give yall the answer keys        A. 195          B. 409            C.981               D. 1,956     we all know its not b so dont pick be

In number 409 , digit 9 has the same value as one tenth the value of the 9 in 296.

Given number is 296.

Place value of 2 [tex]=200[/tex]

Place value of 9 [tex]=90[/tex]

One tenth of place value of 9 in 296 [tex]=\frac{1}{10}*90 =9[/tex]

From given options, In  Number 409, digit 9 have same place value as one tenth the value of the 9 in 296.

Learn more:

https://brainly.com/question/13607698

Kaleb brougt 4.35 pounds of bananas , 3.89 pounds of oranges ,and 2.13 pounds of avocados .what is the total weight fruit kaleb brought?

Answers

Answer: 10.37 pounds

Step-by-step explanation: In order to calculate the total amount of fruit that was purchased you need to add the three amounts together. 4.35 + 3.89 + 2.13 = 10.37 pounds.

The total weight of the fruit kaleb bought is 10.37 pounds.

I added the total amount of each together to get my answer.

I hope this helps.

THE BROWN FAMILY IS PLANTING 1/3 OF THEIR GARDEN WIH FLOWERS, 1/3 WITH BERRIES, AND 1/3 WITH VEGETABLES. THE VEGETABLES SETION HAS EQUAL PARTS OF CARROTS, ONIONS, PEPPERS, AND TOMATOES. WHAT FRACTION OF THE GARDEN IS PLANTED WITH CARROTS? SOLVE THIS PROBLEM ANY WAT YOU CHOOSE.

PLESASE HELP ME ASAP

Answers

1/12  the fraction of the garden is planted with carrots.

How to determine the fraction of the garden is planted with carrots.

The Brown family is planting 1/3 of their garden with vegetables, which is further divided into equal parts of carrots, onions, peppers, and tomatoes.

So, the fraction of the garden planted with carrots is 1/4 of the vegetable section, which can be calculated as follows:

1/4 x 1/3 (fraction of the garden planted with vegetables) = 1/12

Therefore, 1/12 of the garden is planted with carrots.

Learn more about fraction at https://brainly.com/question/78672

#SPJ1

Final answer:

1/12 of the Brown family's garden is planted with carrots, as the vegetable section is 1/3 of the garden and is equally divided among four types of vegetables.

Explanation:

The Brown family is planting 1/3 of their garden with flowers, 1/3 with berries, and 1/3 with vegetables.

The vegetable section is equally divided into four parts for carrots, onions, peppers, and tomatoes.

To find the fraction of the garden planted with carrots, you would divide the vegetable section's fraction by the number of vegetable types.

Since 1/3 of the garden is planted with vegetables, and there are 4 types of vegetables, the fraction of the garden with carrots is:
1/3 ÷ 4 = 1/3 × 1/4 = 1/12.
Therefore, 1/12 of the garden is planted with carrots.

what is equivalent to 16 + (48 - 12) \ 6 - 5 * 2

Answers

ANSWER

[tex] 12[/tex]

EXPLANATION

The given expression is

[tex]16 + \frac{(48 - 12)}{6} - 5 \times 2[/tex]

Deal with the parenthesis first,

[tex]16 + \frac{36}{6} - 5 \times 2[/tex]

Next deal with division.

[tex]16 + 6 - 5 \times 2[/tex]

Next, deal with multiplication.

[tex]16 + 6 - 10[/tex]

Next, deal with addition

[tex]22 - 10[/tex]

Finally, deal with subtraction.

[tex] = 12[/tex]

HELP ASAP!! IF CORRECT I WILL MARK BRAINIEST!!!!!!!

Answers

Answer:

B. -28

Step-by-step explanation:

7 times the value -4 is "added", yielding the result of -28.

So we're looking for an answer with -28 as an answer, and a "times 7". That's answer B. Answer D is not the right one since clearly, the model shows -4 being repeatedly (7 times) added. -7 added 4 times would be a different model.

The answer is be -28

Rectangle WXYZ is dilated with center (0,0) and scale factor 3/2, then reflected over the x-axis.Which are the coordinates of the point in the transformed image that corresponds to vertex W?

Hint: W (1, -2) Scale factor of 3/2 = 1.5 Multiply the point by 1.5 to find the new point. Then reflect over the x-axis.
(Answer choises in pictures.)

Answers

Answer:

A. [tex](\frac{3}{2},3)[/tex]

Step-by-step explanation:

The mapping for  a dilation with center (0,0) scale factor [tex]k[/tex] is

[tex](x,y)\to (kx,ky)[/tex]

Also a reflection over the x-axis has the mapping

[tex](x,y)\to (x,-y)[/tex]

A dilation with center (0,0) scale factor [tex]\frac{3}{2}[/tex] followed by a reflection over the x-axis will yield.

[tex]W(1,-2)\to (\frac{3}{2}\times1,\frac{3}{2}\times -2)\to W'(\frac{3}{2},3)[/tex]

The correct choice is A.

Rectangle WXYZ is dilated with center (0,0) and scale factor 3/2, then reflected over the x-axis to get W"(3/2, 3)

What is transformation?

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, translation, rotation and dilation.

W has coordinate at W(1, -2). If a dilation of 3/2 is done, the new point is W'(3/2, -3). If it is reflected over the x axis, the point is at W"(3/2, 3)

Rectangle WXYZ is dilated with center (0,0) and scale factor 3/2, then reflected over the x-axis to get W"(3/2, 3)

Find out more on transformation at: https://brainly.com/question/1620969

There are bytes in a gigabyte. There are bytes in a megabyte. How many times greater is the storage capacity of a 1-gigabyte flash drive than a 1-megabyte flash drive?

Answers

Answer:

1000 times greater

Step-by-step explanation:

1 gigabyte = 1000000000 bytes

1 mega byte = 1000000 bytes

Therefore;

1 gigabyte = 1000 megabyte

Thus;

The storage capacity of 1 gigabyte is 1000 times greater than a flash drive with a capacity of 1 megabyte

Answer:

"1,000 times greater"

Step-by-step explanation:

We will do the calculation in BYTES.

We want to figure out HOW MANY TIMES GREATER is 1 Gigabyte than 1 Megabyte.

1 Gigabyte (GB) = 10^9 Bytes

1 Megabyte (MB) = 10^6 Bytes

So, how many times is 10^9 is of 10^6? We just need to divide 10^9 by 10^6.

[tex]\frac{10^9}{10^6}=\frac{1000000000}{1000000}=1000[/tex]

So, 1 GB is 1000 times greater than 1 MB.

A)A 15-year old girl charged with shoplifting.

Eliminate

B)A 19-year old man charged with assault.C)A 21-year old woman charged with fraud.D)A 25-year old man charged with speeding​

Answers

C)21-YEARS OLD WOMAN CHARGED WITH FRAUD.

The answer is A.

15 year-old girl with shoplifting

PLEASE HELP!!! 10+5 POINTS!
Which number is written in scientific notation?

A 4.5 x 10 ⁻³

B 14.5 x 10²

C 0.78 x 10⁻⁶

D 5.7 x 4⁸

Answers

A because the decimal always has to be less than ten, and it has to be multiplied by 10 with an exponent

Answer:

It's A

Step-by-step explanation:

I took da quiz

how many ml of 30 percent acid should be added to pure acid to make 70 ml of 35 percent acid?

Answers

Answer:

  65 mL

Step-by-step explanation:

Let x represent the quantity (mL) of 30% acid that should be added to (70-x) mL of pure acid to make 35% acid. The quantity of acid in the mix is ...

  0.30·x + 1.00·(70 -x) = 0.35·70

  -0.70x = 70·(-0.65) . . . . . . simplify, subtract 1.0·70

  x = 65 . . . . . . . . . . . . . . . . . divide by the coefficient of x

65 mL of 30% acid should be added to 5 mL of pure acid to make 70 mL of 35% acid.

_____

Comment on the problem wording

Safety precautions should be observed when working with pure acid. As a chemistry problem (not a math problem), 5 mL of pure acid should be added to 65 mL of 30% acid, not the other way around.

Multiply. (5x^2-6x+2)(4x^2-3x)

Answers

20x^4-39x^3-16x

Make sure to multiply all the terms by each other in the two parentheses

Final answer:

To multiply the given expressions (5x^2-6x+2)(4x^2-3x), we use the distributive property. The resulting expression is 20x^4 - 39x^3 + 18x^2.

Explanation:

To multiply the given expressions (5x^2-6x+2)(4x^2-3x), we can use the distributive property of multiplication. We multiply each term in the first expression by each term in the second expression and then simplify the resulting terms by combining like terms.

First, let's multiply the first terms: 5x^2 * 4x^2 = 20x^4.

Next, let's multiply the outer terms: 5x^2 * -3x = -15x^3.

Then, let's multiply the inner terms: -6x * 4x^2 = -24x^3.

Finally, let's multiply the last terms: -6x * -3x = 18x^2.

Now, let's combine all the resulting terms together: 20x^4 - 15x^3 - 24x^3 + 18x^2 = 20x^4 - 39x^3 + 18x^2.

Learn more about Multiplying polynomials here:

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the volume of a cube is 1,953,125 centimeters what is the length of the sides

Answers

Answer:

125 cm

Step-by-step explanation:

The formula of a volume of a cube:

[tex]V=a^3[/tex]

a - edge of cube

We have V = 1,953,125 cm³. Substitute:

[tex]a^3=1,953,125\to a=\sqrt[3]{1,953,125}\\\\\begin{array}{c|c}1,953,125&5\\390,625&5\\78,125&5\\15,625&5\\3,125&5\\625&5\\125&5\\25&5\\5&5\\1\end{array}\\\\1,953,125=5^3\cdot5^3\cdot5^3\\\\\sqrt[3]{1,953,125}=\sqrt[3]{5^3\cdot5^3\cdot5^3}\qquad\text{use}\ \sqrt[3]{ab}=\sqrt[3]a\cdot\sqrt[3]b\\\\=\sqrt[3]{5^3}\cdot\sqrt[3]{5^3}\cdot\sqrt[3]{5^3}\qquad\text{use}\ \sqrt[3]{a^3}=a\\\\=5\cdot5\cdot5=125[/tex]

Reflect the triangle over the y-axis and find the coordinate of the image of point K.

Answers

Answer:

Okay, all you have to do is reflect the triangle over the y-axis by finding each of the points distance from the y-axis. For example. If one of your coordinates was (3,2) you would reflect it over to (-3,2). Can you give me point K's coordinates?

Step-by-step explanation:

Answer:

A- K’(2, 1)

Step-by-step explanation:

took it

How do you simplify 16m^2/24m^7

Answers

Final answer:

To simplify 16m^2/24m^7, you divide both numbers by 8 and subtract the exponents, getting 2/3m^(-5), which is then rewritten with positive exponents as 2/(3m^5).

Explanation:

To simplify the expression 16m^2/24m^7, we need to reduce the fraction by dividing both the numerator and the denominator by their greatest common factor. Additionally, we apply the laws of exponents to simplify the expression further.

First, we observe that 16 and 24 have a common factor of 8. So we divide both by 8:

16 / 8 = 2
24 / 8 = 3

Now our expression looks like this:

2m^2 / 3m^7

Next, we apply the laws of exponents. Since both the numerator and denominator have the base m, we subtract the exponent in the numerator from the exponent in the denominator:

m^2 / m^7 = m^(2-7) = m^(-5)

Combining the reduced coefficients and the exponents, we get:

2/3m^(-5)

To have positive exponents, we can write:

2/(3m^5)

Which of the following shows the figure rotated 90 degrees counterclockwise around the origin and then reflected across the x axis?

Answers

Answer:

First figure

Step-by-step explanation:

From given graph we can see that the point (3,0) and (3,1) lie on the given graph.

90 degree rotation counterclockwise around origin:The point (x,y) is rotated 90 degree counterclockwise about origin then the point changed by the rule

[tex](x,y)\rightarrow(-y,x)[/tex]

When the point (x,y) is reflected across x- axis then point is transformed   by the rule

[tex](x,y)\rightarrow (x,-y)[/tex]

Point (3,0) is rotates 90 degree counter clockwise about origin then the point will be (0,3) after rotation.

When the point (0,3) is reflected across x- axis then the point becomes

(0,-3).

The point (3,1) becomes (-1,3) after 90 degree counterclockwise rotation.

After reflection across x- axis, the point becomes (-1,-3)

(0,-3) and (-1,-3) lie in the firs figure.

Hence, it is true.

Answer: the first one

which statement is true about the function f(x)=√x? the domain of the graph is all real numbers. the range of thebgraph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers greater than or equal to 0.

Answers

Answer:

The range of the graph is all real numbers greater than or equal to 0

Step-by-step explanation:

we have

[tex]f(x)=\sqrt{x}[/tex]

we know that

The domain of the function is the interval -------> [0,∞)

All real numbers greater than or equal to zero

The range of the function is the interval -----> [0,∞)

All real numbers greater than or equal to zero

see the attached figure to better understand the problem  

Answer:

The range of the graph is all real numbers greater than or equal to 0.

Step-by-step explanation:

Consider the provided function [tex]f(x)=\sqrt{x}[/tex].

Domain of the function is the set of all possible x values which a function can take.

Range of the function is the set of all output values or the values produced by the function.

Now, consider the provided function.

The value of x can not be a negative number because the square root of negative number is not a real number.

Thus, the domain of the function must be zero or greater than zero.

The graph of the function is shown in figure 1.

From the graph it can be observed that the values produced by that function is all real numbers greater than or equal to 0.

Therefore, the required answer is: The range of the graph is all real numbers greater than or equal to 0.

Find the difference between -4 and 2

Answers

Answer:

-6

Step-by-step explanation:

"the difference" = subtract.

The difference between -4 and 2 is subtract -4 and 2 together.

-4 - 2 = -6

-6 is your answer.

~

Answer:

The difference is 6

Step-by-step explanation:

The difference means the absolute value, so not what -4-2 is, but how far apart these two are on a number line. We need to take the absolute value of -4-2 so |-4|-|2|=|-6| and absolute value ignores signs so your answer is 6. Let me know if you need more help

The volume of a cone is 294.38 cm3. The radius of the base is 7.5 cm. Which of the following could be the height of the cone?

Answers

The height would be 5.

Answer: i used my calculator check this is right

Step-by-step explanation:

What Is The Value Of X?

Answers

Answer: 7 cm

Step-by-step explanation:

You know the lenght of one of the sides of the smaller triangle.

You also know the lengths of two sides of the larger triangle.

You can see that a corresponding angle is equal

Therefore, by similarity, you can write the expression shown below:

[tex]\frac{36cm}{42cm}=\frac{6cm}{x}[/tex]

Now you must solve for x.

Therefore, you obtain that the value of x is the shown below:

[tex]x(\frac{36cm}{42cm})=6cm\\\\x=\frac{6cm*42cm}{36cm}\\\\x=7cm[/tex]

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