4. Simplify (2 – 3x)(3x2 - 2x -1).

A gx3 - X-2
B-9x² + 12x² - - 2
C 6x² + 4x + 3
D 6x3 - 13x2 + 4x + 3

All the information is in the problem you just have to format it into an equation.

Point slope form: [tex]y_{2}-y_{2}=m(x_{2}-x_{1})[/tex] where "m" is the slope.

The equation would look like...

y+6=[tex]\frac{1}{5}[/tex](x+4)

Answer:

What are we finding for X?

Step-by-step explanation:

Because the polygons are similar... we can create this proportion relationship.

[tex]\frac{8}{10} = \frac{4}{x}[/tex]

Using cross multiplication...

4·10=8x

8x=40

x=5

answer: x=5

Answer:

The answer is 3000.

Step-by-step explanation:

Start to count from ones->tens->hundreds->thousands (from right to left). When it says nearest thousands, you should look at the previous no. which is in hundreds place. As the no. at hundreds place is lesser than 5, there's nothing to add up. (If no. is greater than 5, you should add 1 to the thousands place)

Answer:

93 h

Step-by-step explanation:

P = 4300eᵏᵗ

1. Calculate the value of k

lnP = ln4300 + kt

ln5800 = ln4300 + k(40 h)

8.666 = 8.366 + 40k h

8.666 - 8.366 = 40k h

0.299 = 40 k h

k= 0.299/40 h = 7.481 × 10⁻³ h⁻¹

2. Calculate the time for the population to double

2 × 4300 = 4300eᵏᵗ

2 = eᵏᵗ

ln2 = kt

t = ln2/k = ln2/(7.481 × 10⁻³ h⁻¹) = 93 h

It takes 93 h for the population to double.

Final answer:

Each apple costs 41 cents when a dozen apples are bought for $4.92, determined by dividing the total cost by the number of apples.

Explanation:

The question asks to find the cost per apple when a dozen apples are purchased for $4.92. To find the cost per individual apple, you divide the total cost by the number of apples. There are 12 apples in a dozen, so:

$4.92 ÷ 12 apples = $0.41 per apple

So, each apple costs 41 cents. This exercise of finding the individual cost from a total is an example of a ratio used in basic arithmetic, often taught in middle school mathematics.

Answer:

Step-by-step explanation:

If 2 pounds costs $4, then 1 pound costs $2.  That's why the equation is y = 2x and x is the number of pounds you buy.  If you buy 2.5 pounds, then the cost is y = 2(2.5) so

y = $5

Final answer:

Leah can make 46 full bags of toy cars to sell at the flea market when placing 6 toys in each bag out of her 280 toy cars, with 4 toys remaining unsold.

Explanation:

Leah has 280 toy cars and wants to sell them in gift bags, with 6 toys in each bag. To find out how many full bags she can sell, we need to divide the total number of toy cars by the number of toys per bag.

The calculation would be 280 ÷ 6 = 46 R4. This means Leah can make 46 full bags of toys and there will be 4 toys left over. Since she only sells full bags, the 4 extra toys will not be sold.

Answer:

  The slopes of the lines are different.

Step-by-step explanation:

If you do convert the standard form equation to slope-intercept form, you get ...

  y = -x +5

You see that the slope of this line is -1, whereas the slope of the other line is +1. Both lines have a y-intercept of 5. It is the slopes that are different.

_____

You can determine this to be the case without converting the form of the equation if you have some practice with the various forms of the equation of a line.

In standard form, if the variable signs are the same, the slope is negative. Of course, in slope-intercept form, the sign of the slope is the sign of the coefficient of x.

Answer:

none of the above

Step-by-step explanation:

Answer:

Sorry for the incorrect answer everyone!

Step-by-step explanation:

My old answer: Perpendicular bisector

Reasons:

I know I made a mistake before, but this is better late than never! I hope this helps for the future! *^-^*

- sincerelynini

Answer:

Step-by-step explanation:

A.  The conversion ratio is that 16 oz = 1 lb

B.  7.75 lb × [tex]\frac{16oz}{1lb}[/tex]

From there the label of lb cancels out, leaving you with the label oz.  Multiply straight across the top to get 124 oz.

Answer:

27k-20n

Step-by-step explanation:

3(9k-4)-4(5n-3)

27k-12-20n+12

27k-20n-12+12

27k-20n

Answer:

100+10

Step-by-step explanation:

The solution is:

[tex]x = \frac{-3+\sqrt{51}i}{6}\ \ \ \ AND\ \ \ \ x = \frac{-3-\sqrt{51}i}{6}[/tex]

Step-by-step explanation:

Given equation is:

[tex]3x^2+3x+5 = 0[/tex]

We will use the quadratic formula for solving the given equation

The quadratic formula is:

[tex]x = \frac{-b+\sqrt{b^2-4ac}}{2a}\ \ \ ,\ \ \ x = \frac{-b-\sqrt{b^2-4ac}}{2a}[/tex]

Here,

a = 3

b = 3

c = 5

[tex]x = \frac{-3+\sqrt{(3)^2-4(3)(5)}}{2(3)}\ \ \ ,\ \ \ x = \frac{-3-\sqrt{(3)^2-4(3)(5)}}{2(3)}\\x = \frac{-3+\sqrt{9-60}}{6}\ \ \ ,\ \ \ x = \frac{-3-\sqrt{9-60}}{6}\\x = \frac{-3+\sqrt{-51}}{6} \ \ \ , \ \ \ \ x = \frac{-3-\sqrt{-51}}{6}[/tex]

As we know

[tex]i = \sqrt{-1}[/tex]

So,

[tex]x=\frac{-3+\sqrt{51*-1}}{6} \ \ \ , \ \ \ \ x = \frac{-3-\sqrt{51*-1}}{6}\\x=\frac{-3+(\sqrt{51}*\sqrt{-1})}{6} \ \ \ , \ \ \ \ x = \frac{-3-(\sqrt{51}*\sqrt{-1})}{6}\\x = \frac{-3+\sqrt{51}i}{6}\ \ \ \ AND\ \ \ \ x = \frac{-3-\sqrt{51}i}{6}[/tex]

Hence,

The solution is:

[tex]x = \frac{-3+\sqrt{51}i}{6}\ \ \ \ AND\ \ \ \ x = \frac{-3-\sqrt{51}i}{6}[/tex]

Keywords: Quadratic equation, quadratic formula

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Answer:

sum=2a

diff.=-2b

Step-by-step explanation:

a-b+a+b=

2a

a-b-a-b=-2b

Answer: base a=2ft

               height hₐ=5ft

Step-by-step explanation:

use equation for area of triengle

A=a*hₐ/2

hₐ-height of tringle

a-base of triangle

hₐ=a+3

A=a(a+3)/2

2A=a²+3a

A=5ft

2*5=a²+3a

a²+3a-10=0

a=(-3±√9+40)/2

a=(-3±7)/2

a=-5ft

a=2 ft

hₐ=2+3=5ft

Answer:

The answers are given below.

Step-by-step explanation:

7. Simplified Fractions/Integers:

a. [tex]$ (25)^{\frac{-3}{2}} $[/tex]

= [tex]$ (5^2)^{\frac{-3}{2}} $[/tex]

= [tex]$ 5^{-3} $[/tex]

= [tex]$ \frac{1}{5^3} = \frac{1}{125} $[/tex] is the required answer.

b. [tex]$ \bigg ( \frac{1}{7} \bigg )^{2} $[/tex]

= [tex]$ \bigg( \frac{1}{7^2} \bigg) $[/tex]

= [tex]$ \frac{1}{49} $[/tex] is the required answer.

c. [tex]$ \bigg ( \frac{1}{7} \bigg) ^{-3} $[/tex]

= [tex]$ \bigg ( \frac{1}{7^{-3}} \bigg )$[/tex]

= [tex]$ 7^{3} $[/tex] = 343 is the required answer.

8. Simplified Fractions:

a. [tex]$ \bigg( \frac{27}{8} \bigg ) ^{\frac{2}{3}}$[/tex]

= [tex]$ \bigg ( \frac{3^3}{2^3} \bigg ) ^{\frac{2}{3}} $[/tex]

= [tex]$ \bigg ( \frac{3}{2} \bigg) ^2  $[/tex]

[tex]$ = \frac{9}{4} $[/tex] is the required answer.

b. [tex]$ \bigg ( \frac{4}{25} \bigg)^{\frac{-3}{2}} $[/tex]

= [tex]$ \bigg ( \frac{2^2}{5^2} \bigg)^{\frac{-3}{2}}[/tex]

= [tex]$ \bigg ( \frac{2^{-3}}{5^{-3}} \bigg ) $[/tex]

= [tex]$ \bigg( \frac{5^3}{2^3} \bigg ) $[/tex]

= [tex]$ \frac{125}{8} $[/tex] is the required answer.

9. Index Forms:

a. √3

= [tex]$ 3^{\frac{1}{2}} $[/tex] is the required answer.

b. ∛3

= [tex]$ 3^{\frac{1}{3}} $[/tex] is the required answer.

c. [tex]$\sqrt[6]{2} $[/tex]

= [tex]$ 2^{\frac{1}{6} $[/tex] is the required answer.

d. [tex]$ \sqrt{5^3} $[/tex]

= [tex]$ 5^{\frac{3}{2}} $[/tex] is the required answer.

e. [tex]$ \frac{1}{(\sqrt[3]{5})^2} $[/tex]

= [tex]$ \frac{1}{5^{\frac{2}{3}}} $[/tex]

= [tex]$ 5^{\frac{-2}{3}} $[/tex] is the required answer.

Answer:

26 2/3

Step-by-step explanation:

We could turn both of these numbers into decimals, but I find fractions easier.

so 5 1/3 as an improper fraction is 16/3

0.2 as a fraction is 2/10 or 1/5

so now we have the equation 16/3 ÷ 1/5 or 16/3 x 5/1

this give me 80/3, then when simplified gives me 26 2/3.

Step-by-step explanation:

Solve the bracket first. starting with multiplication and then subtraction

0.00035 + (4.2 x 10-5)

0.00035 + (42-5)

0.00035 + 37

0.01295

Answer:

22

Step-by-step explanation:

21.6 would round up because 6 is closer to 10 than it is 0

The number 21.6 rounded to the nearest whole number is 22.

Rounding off of a number is defined as the simplification of the number by keeping the value of the number same but is made closer to the next number.

Rounding can be done for whole numbers as well as decimals.

Given a number 21.6.

We have to round the number.

Here the first digit after the decimal place is 6, which is greater than 5.

So we have to add 1 to the last digit in the whole part.

So 21.6 is rounded to 22 to the nearest whole number.

Hence the correct number is 22.

Learn more about Rounding Off Numbers here :

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Answer:

Step-by-step explanation:

9×3 = 27

9×4 = 36

9×5 = 45

HOPE IT HELPS

Answer : 9,18,27,36,45,54,63,72,81,90,99,108,117,126,135,144,153,162,171,180,189,198,207,216,225,234,243,252,261,270,279,288,297,306,315,324,333,342,351,360,369,378,387,396,405,414,423,432,441

Answer:

x = -32

Step-by-step explanation:

¾ x = -24

Multiply both sides by 4.

3x = -96

Divide both sides by 3.

x = -32

Answer:

x = -2

Step-by-step explanation:

Divide -24 by 3 = -8

4x=-8

Divide -8 by 4 = -2

x = -2

Answer:

0.714

Step-by-step explanation:

Answer:

0.714...

Step-by-step explanation:

5/7 means 5 divided by 7=

0.71428571...= 0.714(rounded)

Answer:

x=-2

Step-by-step explanation:

-2+8=6

subtract 8 from six and you get your answer since it is a simpler linear  equation. hoped this helped a little bit

Answer:2

Step-by-step explanation:

-X+8=6

Answer:

The measure of the angle is 64 degree.

The measure of the supplement is 116 degree.

Step-by-step explanation:

Let the measure of the angle be 'x'.

Given:

Supplement of the angle is 12 less than twice the measure of the angle.

Twice the angle means 2 times of the angle which is [tex]2x[/tex] and 12 less means 12 is subtracted from [tex]2x[/tex].

So, supplement of the angle = [tex]2x-12[/tex]

Now, by definition of supplementary angles, if two angles are supplement of one another, then their sum is 180 degrees.

Therefore, the sum of the given angles = 180°

⇒ [tex]x+2x-12=180[/tex]

⇒ [tex]3x-12=180[/tex]

⇒ [tex]3x=180+12[/tex]

⇒ [tex]3x=192[/tex]

⇒ [tex]x=\frac{192}{3}=64\°[/tex]

The measure of the supplement = [tex]2(64)-12=128-12=116[/tex]

The measure of the angle is 64 degree.

The measure of the supplement is 116 degree.

Answer:

The equivalent equation is correctly matched with a key feature of the graph is

y = 3(x + 2) highlights that the x-intercept is at -2.

Step-by-step explanation:

Given:

[tex]y=3x+6[/tex]

Solution:

The Given Equation is in Slope - Point Form i.e

[tex]y=mx+c[/tex]

Where,

[tex]m=slope\\\\c=y-intercept[/tex]

On Comparing the given equation with above we get

[tex]slope=m=3\\\\y-intercept =6[/tex]

Now we Know that

Intercepts:

The line which intersect on x-axis and y-axis are called intercepts.

There are two intercepts:

y-intercept: The line which intersect at y-axis. So when the line intersect at y-axis X coordinate is zero.

x-intercept: The line which intersect at x-axis. So when the line intersect at x-axis Y coordinate is zero.

For x-intercept

Put y = 0 in

[tex]y=3(x+2)[/tex]

[tex]0=3x+6\\\\3x=-6\\\\\therefore x=\dfrac{-6}{3}=-2[/tex]

∴ x-intercept of

[tex]y=3x+6[/tex]

x-intercept = -2

The equivalent equation is correctly matched with a key feature of the graph is

y = 3(x + 2) highlights that the x-intercept is at -2.

Answer:

12.5 centimeters per minute

Step-by-step explanation:

From the graph, the rate at which the diameter increasing would be inthe units of cm/min

The rate is basically the slope of the line. The slope (m) has formula:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Where

[tex](x_1,y_1)[/tex]  is any point from the graph

and

[tex](x_2,y_2)[/tex]  is another point from the graph

Let's take the origin (0,0) as the first point and (4,50) as the second point. Now lets calculate the slope:

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{50-0}{4-0}\\m=\frac{50}{4}\\m=12.5[/tex]

Thus, we can say:

The diameter of the hot air balloon is increasing at a rate of 12.5 centimeters per minute

Answer:

The fourth option gives the result.

Step-by-step explanation:

We have to find f(x) and g(x) from options given such that y = f[g(x)] is equivalent to [tex]y = \frac{8}{\sqrt{2x + 4}}[/tex].

Here, the fourth option gives the result.

If [tex]f(x) = \frac{8}{\sqrt{x} }[/tex] and g(x) = 2x + 4, then the composite function [tex]f[g(x)] = \frac{8}{\sqrt{2x + 4}}[/tex]

⇒ [tex] y = \frac{8}{\sqrt{2x + 4}}[/tex] ( Answer )

Solve for x.

20% × x = 35

0.2x=35

x=175

answer: 175

Answer: 175

Step-by-step explanation: We can change this problem to mean the same thing but it will say 20% of what number is 35.

To answer the question 20% of what number is 35, we translate the question into an equation. First we have 20% which we need to write as a decimal and remember to write 20% as a decimal, we move the decimal point 2 places to the left and we get 0.20.

Next we have "of what number" that's times x, "is 35" = 35. Now we have the equation (.20)(x) = 35.

Not to solve for x, since x is being multiplied by .20, we need to divide by .20 on both sides of the equation. On the left side of the equation the .20's cancel and we have x. On the right side of the equation we have 35 divided by .20 which is 175.

This means that 20% of 175 is 35.

Answer:

$638.25

Step-by-step explanation:

The interest is 5.5% yearly and it is simple interest.

Now, if we consider a deposit of $575 into the bank account that earned 5.5% simple interest each year, then after 2 and half years James will get interest only for 2 years as the 3rd year's interest will be added after the 3rd year.

Therefore, if no money was deposited into or withdrawn from the account, then after 2.5 years the sum will be  

[tex]575(1 + \frac{5.5 \times 2}{100}) = 638.25[/tex] dollars. (Answer)

The y-coordinate of point A is -22

Step-by-step explanation:

Given

B = (24,16)

P = (4,-3)

The formula for mid-point of AB will be given by:

[tex]P = (\frac{x_A+x_B}{2} , \frac{y_A+y_B}{2})[/tex]

As we already know the y-coordinate of midpoint

We can put the formula's y coordinate equal to the given value

[tex]\frac{y_A+y_B}{2} = -3\\\frac{y_A + 16}{2 } = -3\\y_A+16 = -3 * 2\\y_A +16 = -6\\y_A = -6-16\\y_A = -22[/tex]

Hence,

The y-coordinate of point A is -22

Keywords: Mid-point, coordinate geometry

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