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4 years ago

Someone please help me with this problem

Mathematics

1 answer:

Reika [66]4 years ago

5 0

Step-by-step explanation: you divide the ft. all together and then add.

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How long did it take for Troy’s toy truck to accelerate at 1.2 m/s² from 0.40 to 0.80 meters per second? A. 33 s B. 0.33 s C. 3.

givi [52]

Answer:

i dont knnow

Step-by-step explanation:

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3 years ago

In a game of Captain-May-I, you had taken 7 steps forward, 9 steps backward, 4 steps backward, 2 steps forward, and 3 steps back

babunello [35]

Answer: -7

7
- 9
= -2
- 4
= -6
+ 2
= -4
- 3
= -7

3 0

3 years ago

Read 2 more answers

The product of (4z^2 + 7z - 8) and (-z + 3) is -4z^3 + xz^2 + yz - 24. What is the value of x? What is the value of y?

ycow [4]

Answer:

$x=5+\frac{29}{z}-\frac{y}{z}$

$y=5z+29-xz$

Step-by-step explanation:

Given: $(4z^2+7z-8)(-z+3)=-4z^3+xz^2+yz-24$ ; find x and y.

Let's start with finding x first. Let's distribute the left side of the equation.

$-4z^3+5z^2+29z-24=-4z^3+xz^2+yz-24$

Let's move everything we can to the left side of the equation. Some things will cancel out.

$5z^2+29z=xz^2+yz$

Now, let's move the term that includes $x$ to the left side of the equation. Everything else should be moved to the right.

$-xz^2=-5z^2-29z+yz$

Let's get rid of the negative sign in front of $x$ by dividing both sides by -1.

$xz^2=5z^2+29z-yz$

To get $x$ completely isolated, divide both sides by $z^2$ .

$\frac{xz^2}{z^2}=\frac{5z^2}{z^2}+\frac{29z}{z^2}-\frac{yz}{z^2}$

Simplify.

$x=5+\frac{29}{z}-\frac{y}{z}$

Let's solve for y. We will start with the distributed and simplified equation to make it easier.

$5z^2+29z=xz^2+yz$

Now, let's move the term that includes $y$ to the left side of the equation. Everything else should be moved to the right.

$-yz=-5z^2-29z+xz^2$

Again, let's get rid of the negative sign in front of the $y$ by dividing both sides by -1.

$yz=5z^2+29z-xz^2$

To isolate y, divide both sides by z.

$\frac{yz}{z}=\frac{5z^2}{z}+\frac{29z}{z}-\frac{xz^2}{z}$

Simplify.

$y=5z+29-xz$

8 0

3 years ago

Read 2 more answers

Which expression is equivalent to 3a^2b•4bc^2

Mice21 [21]

Answer

Step-by-step explanation:

8 0

3 years ago

Help please!!! thanks

Rom4ik [11]

Answer:

Step-by-step explanation:

first we can simplify by dividing by r

$\frac{9 {r}^{2} }{r} = \frac{9 \times r \times r}{r} = 9 \times r \times 1 = 9r$

the r on the bottom of the fraction will cancel out one of the r's on top, this happens because anything divided by itself is 1, thus r divided by r is 1

finally we can evaluate when r =3,

9r = 9(3) = 27

3 0

3 years ago