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2 years ago

4+4 for 100 points brainlyist to first answer

Mathematics

1 answer:

Marrrta [24]2 years ago

3 0

Answer:

Step-by-step explanation:

plz me

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Find the focus for y=x^2+4x-7

padilas [110]

ANSWER

$(2,-10.75)$

EXPLANATION

The given function is

$y = {x}^{2} - 4x - 7$

We rewrite this function to obtain,

$(y + 11) = {( x- 2)}^{2}$

We now compare this function to

$(y - k) = 4p {( x- h)}^{2}$

We have

$4p = 1$

This implies that,

$p = \frac{1}{4}$

The vertex is (2,-11).

The focus is

$(2,-11+ \frac{1}{4} )$

$(2,- \frac{43}{4} )$

$(2,-10.75)$

7 0

3 years ago

Translate into an<br> equation and solve.<br> What is 28% of 39?<br> is 28% of 39.

Mice21 [21]

Answer:

10.92

Step-by-step explanation:

turn the percent into a decimal, .28

.28×39=10.92

4 0

2 years ago

n the right triangular prism below, BG FC The volume of the prism is 900 cubic centimeters. The height of the prism is 15 centim

Bad White [126]

12 cm

Remember, V=Bh

-I think I did the process incorrectly but this is what I did:
900=(10)(15)
900=150 (divide 150 on both sides)
you get 6 but then I multiplied by 2 and got 12.
The answer 12 is correct though so I hope this helped! and if someone could explain the process better that would be great lol.

6 0

3 years ago

Read 2 more answers

A cylinder has a radius of 10cm and a height of 9cm. A cone has a radius of 10cm and a height of 9 cm. Show that the volume of t

nlexa [21]

Answer:

The answer in the procedure

Step-by-step explanation:

step 1

Find the volume of the cylinder

The volume of the cylinder is equal to

$V=\pi r^{2} h$