All categories

3 years ago

Use the distributive property to find two expressions that are equivalent to 7(3x - 4)

Mathematics

1 answer:

ehidna [41]3 years ago

7 0

I could only figure out one... sorry! Good luck

The answer is: 21x-28

You might be interested in

An object is launched from a launching pad 208 ft. above the ground at a velocity of 192ft/sec. what is the maximum height reach

loris [4]

Answer:

The maximum height is 784 feet

Step-by-step explanation:

In this problem we use the kinematic equation of the height h of an object as a function of time

$h(t) = -16t ^ 2 + v_0t + h_0$

Where $v_0$ is the initial velocity and $h_0$ is the initial height.

We know that

$v_0 = 192\ \frac{ft}{sec}$

$h_0 = 208\ ft.$

Then the equation of the height is:

$h(t) = -16t ^ 2 + 192t +208$

For a quadratic function of the form $ax ^ 2 + bx + c$

where $a$

the maximum height of the function is at its vertex.

The vertice is

$x = -\frac{b}{2a}\\\\y = f(\frac{-b}{2a})$

In this case

$a = -16\\b = 192\\c = 208$

Then the vertice is:

$t = -\frac{192}{2(-16)}\\\\t = 6\ sec$

Now we calculate h (6)

$h(6) = -16(6) ^ 2 +192(6) +208\\\\h(6) = 784\ feet$

The maximum height is 784 feet

8 0

3 years ago

Given p(x) = x+7/3 if p(x) = 13, find x.

Shtirlitz [24]

Answer:

x = $\frac{32}{3}$

Step-by-step explanation:

We know that p(x) = 13. Thus, substitute 13 for the "p(x)" in the equation. Then, isolate x by subtracting both sides by $\frac{7}{3}$ :

$p(x) = x + \frac{7}{3}\\13 = x + \frac{7}{3} \\13 - \frac{7}{3} = x \\\frac{39}{3}- \frac{7}{3} = x \\\frac{32}{3} = x$

Thus, x = $\frac{32}{3}$ .

3 0

2 years ago

A concession stand charges $2.50 for a bag of popcorn. The stand has already sold 30 bags of popcorn. How many more bags x of po

yawa3891 [41]

Answer:

I hope it helps! If it does please mark me as a brainliest!

Step-by-step explanation:

5 0

3 years ago

Which of the following has two bases? A. prism B. pyramid C. line D. plane

Margaret [11]

A. Prism

A prism has two bases

3 0

3 years ago

Find the perimeter and area, to the nearest

vredina [299]

Perimeter is equal to 90 in.

Area is approximately equal to 389.71 in.

3 0

3 years ago