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2 years ago

Don breaks a 4×7 array into a 2×7 and another array. What is the fact for Don's second array?

1 answer:

8 0

The fact for Dons second array is that all he did was divide the second array in half.(4×7=28). (2×7=14). ( 28÷2=14). Hopefully that made sense!!!!!

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Find the slope of the line containing the given pair of points. If the slope is undefined, state this. (-8,0) and (4,0)

ahrayia [7]

Answer:

The slope is 0

Step-by-step explanation:

Given

$(x_1,y_1) = (-8,0)$

$(x_2,y_2) = (4,0)$

Required

The slope (m)

This is calculated as"

$m=\frac{y_2-y_1}{x_2 - x_1}$

$m=\frac{0-0}{4 -(-8)}$

$m=0$

<em>The slope is 0</em>

3 0

2 years ago

The length of a rectangle is four times the width. The perimeter of the rectangle is 45 inches. Write a system of equations that

wolverine [178]

Answer:

Let l be the length and w the width of the rectangle.

P as the perimeter and A as the area.

length of a rectangle is four times the width:

w = w

l = 4w

System of equation : 2l + 2w = P

Substitute:

2(4w) + 2w = 45

8w + 2w

10w = 45

w = 45 / 10

w = 4.5

Solve for l:

l = 4w

l = 4(4.5)

l = 18

Area:

A = lw

A = 18(4.5)

A = 81 in²

8 0

2 years ago

Read 2 more answers

Use the FOIL method to find the product below.

Marina86 [1]

The answer is B. 35x2 + 34x + 8

8 0

2 years ago

Elise put a magnet into a drawer. One-half of the items in the drawer stuck to the magnet. What fraction of the items in the dra

irinina [24]

Answer:

1/2

Step-by-step explanation:

To get the fraction of items that are not magnetic, subtract the fraction that stuck to the magnet (1/2) from 1 whole, or 2/2:

2/2 - 1/2 = 1/2

Thank you,I appreciate you asking this question

have a nice and relaxed day ! hope I helped .

3 0

2 years ago

Find (a) the slope of the curve at the given point p, and (b) an equation of the tangent line at p. y=−2−9x2; p(2,−38)

Neporo4naja [7]

Answer:

a) -36

b) y = -36x +34

Step-by-step explanation:

a) The slope is found using the derivative of the function.

f'(x) = dy/dx = 0 -9(2x) = -18x

Then at x=2, the slope is ...

f'(2) = -18·2 = -36

___

b) The point-slope form of the equation can be written as ...

y = -36(x -2) -38

Simplifying to slope-intercept form, we get ...

y = -36x +34

6 0

2 years ago