16x^2 = 49 help find x.

Answers

Answer 1
x=1.75

16x^2=49
divide 16 from both sides
x^2=3.0625
square root on both sides
x=1.75

Related Questions

What is the perimeter of △LMN?

A. 8 units
B. 9 units
C. 6 + √10 units
D. 8 + √10 units

Answers

I  solved this via the Pythagorean theorem. Side LM is 5 and side NM is 3.16. Side NL is also 3. 3+5+3.16=11.16. The decimal form of 8+sqrt(10) is 11.16. D is the answe



we know that

The distance 's formula between two points is equal to

[tex]d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}[/tex]

Step [tex]1[/tex]

Find the distance MN

[tex]M(-2,1)\\N(-1,4)[/tex]

Substitute in the distance's formula

[tex]d=\sqrt{(4-1)^{2}+(-1+2)^{2}}[/tex]

[tex]d=\sqrt{(3)^{2}+(1)^{2}}[/tex]

[tex]dMN=\sqrt{10}\ units[/tex]

Step [tex]2[/tex]

Find the distance NL

[tex]N(-1,4)\\L(2,4)[/tex]

Substitute in the distance's formula

[tex]d=\sqrt{(4-4)^{2}+(2+1)^{2}}[/tex]

[tex]d=\sqrt{(0)^{2}+(3)^{2}}[/tex]

[tex]dNL=3\ units[/tex]

Step [tex]3[/tex]

Find the distance LM

[tex]L(2,4)\\M(-2,1)[/tex]

Substitute in the distance's formula

[tex]d=\sqrt{(1-4)^{2}+(-2-2)^{2}}[/tex]

[tex]d=\sqrt{(-3)^{2}+(-4)^{2}}[/tex]

[tex]dLM=5\ units[/tex]

Step [tex]4[/tex]

Find the perimeter of the triangle LMN

we know that

The perimeter of a triangle is equal to the sum of the three length sides

In this problem

[tex]Perimeter=MN+NL+LM[/tex]

substitute the values in the formula

[tex]Perimeter=(\sqrt{10}+3+5)\ units[/tex]

[tex]Perimeter=(8+\sqrt{10})\ units[/tex]

therefore

the answer is the option D

the perimeter of the triangle LMN is equal to [tex](8+\sqrt{10})\ units[/tex]

I need help with #7 please help

Answers

the answer is c. I did the math

Let E = total earnings per month and x represents the number of items sold.

Since the expression 5x + 350 is the earnings per month, this means E = 5x + 350.

We want the earnings (E) to be "at least 950", which means we want E to be equal to 950 or larger. So we can say

E >= 950

The symbol ">=" without quotes means "greater than or equal to"

Replace the "E" with "5x+350" and solve for x

E >= 950
5x+350 >= 950
5x+350-350 >= 950-350
5x >= 600
5x/5 >= 600/5
x >= 120

So you are close, but the answer is choice C. This means she must sell 120 items or more.

the columns in any data table represent __________ in a controlled experiment. a variables b controls

Answers

When it comes to analyzing the columns in a given data table in order to determine an analysis, the columns in each given spreadsheet are almost always referring to the independent variables that are applied to the given experiment in question in order to derive the results.

Answer:

A) Variables

A) Independent

A) X

Step-by-step explanation:

If a polygon has 5 sides is it a regular pentagon

Answers

no it is not anything can have 5 sides but not form a pentogon 

Write an equation of the line that has a slope of 3 and contains the point (2,5) in point-slope form.

Answers

Point slope form is this equation
y - y1 = m(x-x1)
where m is the slope and (x1,y1) is the point the line goes through

The slope is 3, so let's replace m with 3
y - y1 = m(x-x1)
y - y1 = 3(x-x1)

The given point is (2,5) so let's replace x1 with 2 and y1 with 5
y - y1 = 3(x-x1)
y - y1 = 3(x-2)
y - 5 = 3(x-2)

Answer: y-5 = 3(x-2)

The minute hand of a clock is 6 inches long. how far does the tip of the minute hand move in 15 minutes? how

Answers

6*15=90 it will move 90' in 15 min. and in a full hour it will 360'

Answer:

The tip of the minute hand moves approximately 37.7 inches in 15 minutes.

Explanation:

To find how far the tip of the minute hand moves in 15 minutes, we can use the formula for the circumference of a circle:

[tex]\[ \text{Circumference} = 2 \pi r \][/tex]

Where:

- [tex]\( r \)[/tex] is the length of the minute hand (radius of the circle).

Given:

- The length of the minute hand, [tex]\( r = 6 \)[/tex] inches.

Substitute the given value into the formula:

[tex]\[ \text{Circumference} = 2 \pi \times 6 \][/tex]

[tex]\[ \text{Circumference} = 12 \pi \][/tex]

So, the tip of the minute hand moves a distance of [tex]\( 12 \pi \)[/tex] inches in 15 minutes.

To approximate this value:

[tex]\[ 12 \pi \approx 37.7 \][/tex] inches (rounded to one decimal place).

Which graph represents the solution set of the system of inequalities?

{y<2/3x
y≥−x+2

Answers

y<2/3x
y≥−x+2

It's the last graph

Answer:

Last graph is the answer.

Step-by-step explanation:

The inequalities are y < [tex]\frac{2}{3}x[/tex] and y ≥ -x + 2

Now first inequality y < [tex]\frac{2}{3}x[/tex] will represent a dotted line passing through origin and a point (3, 2)

This inequality will be in the form a dotted line and shaded area will be below the line.

Second inequality is y ≥ -x + 2

Line representing the inequality will be solid in shape and shaded area will be above this line.

Common shaded area of both the inequalities matches with the last option.

Therefore, Last option (second row last figure) will be the answer.

Eight plus the quotient of a number and 3 is -2

Answers

8+ x/3= -2

Subtract 8 from both sides
x/3= -10

Multiply both sides by 3
x=-30

Final answer: x=-30

In your own words, write the rules for multiplying integers. Then write the rules for dividing integers.

best answer gets brainliest

Answers

Multiplying Integers & Dividing Integers:
1. The product of two positive/negative integers is positive.

2.A positive integer and a negative is a negative integer.

It's the same for both... 

Mandy used the input and output in this table to write ratios. She concluded that because they are not all equivalent, this is not a proportional relationship. Is she correct? Explain.

[ x ][ 1 ][ 2 ][ 5 ][ 10 ]
-------------------------------
[ y ][ 5 ][ 10 ][ 25 ][ 50 ]

5/1 = 10/2 = 25/5 = 10/50

Answers

Proportional relationships are relationships with equal ratio. Mandy's conclusion is incorrect because the relationship is proportional, and it has a uniform ratio of 5.

To determine if the input and output are proportional, we simply divide the output (y) by the corresponding input (x).

i.e.

[tex]Ratio = \frac yx[/tex]

So, we have:

[tex]Ratio = \frac 51 = 5[/tex]

[tex]Ratio = \frac{10}{2} = 5[/tex]

[tex]Ratio = \frac{25}{5} = 5[/tex]

[tex]Ratio = \frac{50}{10} = 5[/tex]

For the four input and output data, the ratios are equal (i.e. 5).

This means that the relationship is proportional.

Hence, Mandy's conclusion is incorrect

Read more about proportional relationships at:

https://brainly.com/question/24312388

Final answer:

Mandy is correct about the proportional relationship as all the ratios of y to x in her table are equivalent to 5/1. However, there is an error with the last ratio listed as 10/50, which should be 50/10 to match the information in the table. After correcting this typo, it is clear that the relationship is proportional because all of the ratios simplify to the same value.

Explanation:

Mandy is indeed correct. For a set of ratios to represent a proportional relationship, they all must have the same value when simplified. From Mandy's table, the ratios formed from the inputs (x) and outputs (y) are 5/1, 10/2, 25/5, and 50/10. When simplified, these should give us a constant ratio if the relationship is proportional. Simplifying the ratios, we get:

5/1 simplifies to 5/110/2 simplifies to 5/125/5 simplifies to 5/150/10 simplifies to 5/1

Since all ratios simplify to the same number, 5/1, it indicates that the relationship between x and y is indeed proportional. However, the last ratio listed in the question, 10/50, is incorrect as it should be 50/10 to maintain consistency with the rest of the table. If we correct this ratio to 50/10, then all ratios confirm a proportional relationship.

To further validate this, a proportion can be created by setting two ratios equal to each other. For example, we can compare the first and the second ratio: 5/1 = 10/2. When you cross-multiply, the resulting equations, 5*2 = 10*1, are true, again confirming proportionality.

Learn more about Proportional Relationship here:

https://brainly.com/question/29765554

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A line passes through (2, −1) and (4, 5).

Which answer is the equation of the line?

A. −3x+5y=−13

B. −3x+y=−7

C. −3x+y=17

D. −3x+5y=13

Answers

shouldn't it be y=3x-7?

enter the coordinates of the point (−5, 1) after a 180° rotation about the origin. ( , )

Answers

(5,-1) because it would turn the points to their opposite "charge" and turn the positive to a negative and a negative to a positive



okay this is the last one i already know how to distribute and such i was just wondering what's my next step

Answers

the next step after distribution is isolating the terms with the variable at one side and the terms with no variables at the other. Then solve to get the variable.
-2a+32 = -24a-40-2a
-2a+24a+2a = -40-32
24a = -72
a = -3
-2a + 32 = 8 (-3a - 5) - 2a. 
 now distribute

-2a + 32 = -24a - 40 - 2a
Now we combine like numbers on the right side

-2a + 32 = -26a + 40
now subtract the 40 from the right and subtract it from the 32 on the left

-2a -8 = -26a
and finally add 2a to both sides

-8 = -24a

And SOLVE(simplify) 

The product of c and 9 is greater than or equal to 23

Answers

9c>= 23

Treat above equation as a normal arithmetic equation. Solve for c. If a negative number is multiplied or divided to the other side, the inequality sign is flipped.

c>= 23/9

3.Use rigid motions to explain whether the triangles in the figure are congruent. Be sure to describe specific rigid motions in your explanation.

Answers

From the given figure, it can be seen that triangle JMS was formed from triangle DPW by performing the following transformations.

Triangle DPW was shifted 1 unit to the left, then it was shifted 5 units down and then it was rotated by 90 degrees to the left.

Triangle DPW was translated 1 unit to the left, then it was translated 5 units down and then it was rotated by 90 degrees counterclockwise.

Determine which package of laundry soap is the better buy: 65 ounces for 6.99 of 120 ounces of 12.99

Answers

65 oz for 6.99....
6.99/65 = 0.107 

120 oz for 12.99..
12.99 / 120 = 0.108

well...if u rounded them, they would cost the same.....but actually, 65 oz is about 1/1000 cheaper....I would probably say they cost about the same because I dont think that 1/1000 difference is gonna make that much of a difference

Suppose that a new fuel-efficient European car travels an average of 26 kilometers on 1 liter of gas. If gas costs 1.50 euros per liter, how much will it cost to drive 300 kilometers in dollars?

Answers

Hello,

If you want to drive 300 kilometers, and you can travel 26 kilometers on 1 liter of gas, you need (300/26) ≈ 11.54 liters of gas to drive 300 kilometers. This will cost (11.54)(1.5) = 17.31 Euros. 

17.31 Euros is worth 20.68 dollars.

It will cost 20.68 dollars to drive 300 kilometers.

Hope this helps!


19.04 dollars.

The student is asking how to calculate the cost of driving 300 kilometers in a fuel-efficient car, with the cost given in dollars instead of euros. To calculate this, we need to perform several steps:

First, calculate the total liters of gasoline needed to drive 300 kilometers in a car that consumes 1 liter per 26 kilometers.Next, calculate the total cost in euros.Finally, convert euros to dollars.

Step-by-step, this calculation is:

Fuel Required: 300 km \/ 26 km/l = 11.54 liters (approximately).Total Cost in Euros: 11.54 liters * 1.50 euros/liter = 17.31 euros.Exchange Rate: Assuming an exchange rate of 1 euro = 1.10 dollars (this rate would need to be checked for the current value as it fluctuates).Total Cost in Dollars: 17.31 euros * 1.10 dollars/euro = 19.04 dollars.

Therefore, it will cost approximately 19.04 dollars to drive 300 kilometers.

Help please thanks...............

Answers

D. (4,3). This is since the solution must be in the x shade, which is the pinkish part of the graph and d is the only answer I see

What is the value of y?

Enter your answer in the box.



Answers

When dealing with the angles of triangles, they are always going to equal 180 degrees. 
So, 79 + 37 + x = 180
116 + x = 180
-116         -116
-------------------
x = 64 degrees

To check that you can just add them all together and see if you get 180.
64 + 79 + 37 = 180
y= 64°

79°+37°+?°=180°   so you do it backwards.....
180°-79°-37°=64°

Hope this helps :)

How do you solve x+2a=16+ax-6a ?

Answers

X+2a = 16+aX-6a
8X - 16 = aX-2a
8(X-2) = a(X-2)
(X-2)/(X-2) = a/8
1 = a/8
a= 8

Luis starts at one corner of a square field and walks 80 feet along one side to another corner of the field. He turns 90° and walks 60 feet, and then walks straight back to where he started.



What is the area of the part of the field he walked around?



A.


140 ft²


B.


280 ft²


C.


320 ft²


D.


2400 ft²

Answers

1/2 x 80 x 60 = 2400 square feet was the area


Write an algebraic expression, 1 less than the quotient of a number n and 6

Answers

The expression for the 1 less than the quotient of a number n and 6 is n/6 - 1.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The word expression:

1 less than the quotient of a number n and 6:

Here n is the number:

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56 etc. are the numbers.

The quotient of a number n and 6 = n/6

1 less than the quotient of a number n and 6:

n/6 - 1

If in the linear expression, one variable is present, then the expression is known as the linear expression in one variable.

Thus, the expression for the 1 less than the quotient of a number n and 6 is n/6 - 1.

Learn more about the expression here:

brainly.com/question/14083225

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You drive your car for 4.5 hours at an average speed of 70 miles per hour how far did you go

Answers

you went 315 miles because 4.5x70=315
70•4.5= 315 miles

Answer: 315 miles

You have 480 feet of fencing to enclose a rectangular garden. you want the length of the garden to be 30 feet greater than the width. find the length and width of the garden if you use all of the fencing.

Answers

the length is 135 ft

HELP!!! WILL GIVE 20 POINTS AND BRAINLIEST!!!!

Answers

The answer is easily 12

If ray BD bisects angle CBE, ray BC is transparent to ray BA, angle CBD = (3x + 25) degrees, and angle DBE = (7x - 19) degrees, find angle ABD

Answers

check the picture below.

Answer:  The required measure of angle ABD is 148°.  

Step-by-step explanation:  Given that ray BD bisects angle CBE, ray BC is transparent to ray BA.

Also,

[tex]m\angle CBD=(3x+25)^\circ,~~m\angle DBE=(7x-19)^\circ,~~m\angle ABC=90^\circ.[/tex]

We are to find the measure of angle ABD.

Since ray BD bisects angle CBE, so we have

[tex]m\angle CBD=m\angle DBE\\\\\Rightarrow (3x+25)^\circ=(7x-19)^\circ\\\\\Rightarrow 3x+25=7x-19\\\\\Rightarrow 7x-3x=25+19\\\\\Rightarrow 4x=44\\\\\Rightarrow x=\dfrac{44}{4}\\\\\Rightarrow x=11.[/tex]

So, we get

[tex]m\angle CBD=(3\times11+25)^\circ=58^\circ.[/tex]

Therefore,

[tex]m\angle ABD=m\angle ABC+m\angle CBD=90^\circ+58^\circ=148^\circ.[/tex]

Thus, the required measure of angle ABD is 148°.  

Five times the sum of a number and 4 is -15

Answers

5(x+4)=-15

Distribute
5x+20=-15

Subtract 20 from both sides
5x=-35

Divide both sides by 5
x=-7

Final answer: The number is -7

Perform the indicated operation. 2 1/6 – 5 2/3

A. -7 1/2

B. -3 1/3

C. -3 1/2

D. 3 1/6

Answers

2 1/6 – 5 2/3
=2 1/6 – 5 4/6
= - 3 3/6
=  -3 1/2

answer
C. -3 1/2

Answer:

Option C - [tex]2\frac{1}{6}-5\frac{2}{3}=-3\frac{1}{2}[/tex]

Step-by-step explanation:

Given : Expression [tex]2\frac{1}{6}-5\frac{2}{3}[/tex]

To find : Perform the indicated operation in the expression ?

Solution :

Expression [tex]2\frac{1}{6}-5\frac{2}{3}[/tex]

Write mixed fraction into fraction,

[tex]2\frac{1}{6}-5\frac{2}{3}=\frac{13}{6}-\frac{17}{3}[/tex]

Taking Least common denominator,

[tex]2\frac{1}{6}-5\frac{2}{3}=\frac{13-34}{6}[/tex]

[tex]2\frac{1}{6}-5\frac{2}{3}=-\frac{21}{6}[/tex]

[tex]2\frac{1}{6}-5\frac{2}{3}=-\frac{7}{2}[/tex]

Write improper fraction into mixed fraction,

[tex]2\frac{1}{6}-5\frac{2}{3}=-3\frac{1}{2}[/tex]

Therefore, Option C is correct.

A package of organic strawberries costs $1.50 while they are in season and $2.25 when they aren’t in season what is the percent increase?

Answers

The increase is 50%
The way I look at it is, 
$1.50 multiplied by 1.5 equals $2.25.
I checked this by doing the following, 
$1.50 divided by 2 equals $0.75, $0.75 multiplied by 3 is $2.25, I also did, 
$2.25 minus $1.50 equals $0.75

Answer:50 percent


Step-by-step explanation:You need to subtract 2.25 and 1.50 and get 0.75 then divide it to 1.5 and 0.5 then convert it into decimal form and its 50%.


Algebra 2 Will give brainiest

Answers

So here, you just put in the value inside the parenthesis of the function into the actual function itself.

Here, for h(f(2)), the first one to put in is the one in f, which is 2.

Since f(x) = 3*2^x, and since x here is equal to 2, (because h(f(2)), we can just put in the 2 in place of the x.

3 * 2 ^ 2

And then you get:

3 * 4 

Or 12.

So now you have

h(12)

Now do the same thing.

2 * 12 - 7

24 - 7

17
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