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3 years ago

Correct answer gets brainliest

Mathematics

2 answers:

jok3333 [9.3K]3 years ago

7 0

The answer will be C.) 70 square feet

Dmitry [639]3 years ago

5 0

I think 147ft hope i helped

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Unsure on if I have the right answer worked out someone please say what you've got and how you've done it please

PilotLPTM [1.2K]

The answer is at 7:12 a.m, did you get that?

3 0

3 years ago

Write the equation of a parabola having the vertex (1, −2) and containing the point (3, 6) in vertex form. Then, rewrite the equ

In-s [12.5K]

PART A

The equation of the parabola in vertex form is given by the formula,

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

where

$(h,k)=(1,-2)$

is the vertex of the parabola.

We substitute these values to obtain,

$y + 2 = a {(x - 1)}^{2}$

The point, (3,6) lies on the parabola.

It must therefore satisfy its equation.

$6 + 2 = a {(3 - 1)}^{2}$

$8= a {(2)}^{2}$

$8=4a$

$a = 2$
Hence the equation of the parabola in vertex form is

$y + 2 = 2 {(x - 1)}^{2}$

PART B

To obtain the equation of the parabola in standard form, we expand the vertex form of the equation.

$y + 2 = 2{(x - 1)}^{2}$

This implies that

$y + 2 = 2(x - 1)(x - 1)$

We expand to obtain,

$y + 2 = 2( {x}^{2} - 2x + 1)$

This will give us,

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

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

This equation is now in the form,

$y = a {x}^{2} + bx + c$
where

$a=1,b=-4,c=0$

This is the standard form

7 0

3 years ago

I need help on this math problem

Mila [183]

Answer:

x = 2

y = —3

Step-by-step explanation:

3x — 9 = —2x + 1

x = 2

y = —3

8 0

3 years ago

There are four times as many girls in a chemistry class as there are boys. if there are 45 students in the class, how many boys

puteri [66]

In order to determine the number of boys in the class, first, we set-up an algebraic equation. Let x = number of boys in the class. The equation is then: x + 4x = 45. This is because the number of girls is 4 times greater than the number of boys. After solving the algebraic equation, it is then determined that there are 9 boys in the Chemistry class.

4 0

3 years ago

Which expression is not equivalent to 6^3/6^6?<br><br> a: 1/6^2<br><br> or<br><br> b: 1/6^3

Angelina_Jolie [31]

Answer:

Step-by-step explanation:

6^3/6^6 = 1/216

1/6^2 = 1/36 ≠ 1/216

1/6^3 = 1/216

7 0

3 years ago

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