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3 years ago

5

Allison went to the store to buy some walnuts. The price per pound of the walnuts is

1 answer:

spin [16.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

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Rectangle A has a length of 2x + 6 and a width of 3x. Rectangle B has a length of x + 2 and an area of 12 square units greater t

Maurinko [17]

So here is how you solve for the answer.
Firstly, you solve for the Area of Rectangle A.
The formula for Area is Length x width.
So A = (2x + 6)(3x) and the result is: 6x^2 + 18x
Now, let y be the width of rectangle B.
<span>(x+2) (y) = 6x^2 + 18x + 12
(x+2) y = 6(x+1)(x+2)
y = 6(x+1)
</span>So the final answer would be width is 6x + 6. The answer is the third option. Hope this answer helps.

7 0

3 years ago

1.- What type of parabola is this?

xz_007 [3.2K]

Answer:

<u>Part 1</u>

<u>Sideways or "horizontal" parabola</u> with a horizontal axis of symmetry.

<u>Part 2</u>

The vertex is the turning point: (-3, 1)

<u>Part 3</u>

Vertex form of a horizontal parabola:

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

where:

(h, k) is the vertex
a is some constant
If a > 0 the parabola opens to the right.
If a < 0 the parabola opens to the left.

Point on the curve: (-1, 2)

Substituting the vertex and the found point into the formula and solving for a:

$\implies -1=a(2-1)^2-3$

$\implies -1=a-3$

$\implies a=2$

<u>Part 4</u>

Equation for the given parabola in vertex form:

$x=2(y-1)^2-3$

Equation in standard form:

$x=2y^2-4y-1$

4 0

2 years ago

Mateo was training for a triathlon (a multisport race which includes 1.5 km swim, 40 km bike ride and a 10 km run). His speed fo

Anna007 [38]

Answer:

swimming: 0,75h

biking: 1,6h

running: 1h

Step-by-step explanation:

5 0

3 years ago

The number 2.31 x 10 to the power of x is 2,200 times greater than 1.05 x 10 to the power of y.

Goshia [24]

Answer:

x - y = 3

any values of x& y where x is three greater than y

I.E. x = 8 y = 5

Step-by-step explanation:

8 0

3 years ago

Whats the answer? Please help

PolarNik [594]

Answer:

Answer: y=3/2x+1

To find a line that is perpendicular, invert the slope and multiply by -1

so the original slope is -2/3,

invert it to get -3/2 then multiply by -1 to get 3/2

Put the given point (-2,-2) and the new slope into point intercept form: y+2=3/2(x+2)

Rewrite in standard form to get y=3/2x+1

7 0

3 years ago