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3 years ago

List the partial products of 42 x 28

1 answer:

lina2011 [118]3 years ago

8 0

<span>The partial products are: 42 * 28 = (40 + 2)*(20 + 8) = 40*20 + 40*8 + 2*20 + 2*8 = 800 + 320 + 40 + 16

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The length is 3 inches less than twice the width and the permiter is 42 inches. Find dimensions

Evgesh-ka [11]

Answer:

Here

Step-by-step explanation:

length = x

width = 2x - 3

Perimeter = 2length + 2 width

2x + 2(2x - 3) = 42

2x + 4x - 6 =42

6x - 6 = 42

Add 6 to both sides

6x = 48

Divide both sides by 6

x = 8

Length = 8 inches

Width = 2(8) - 3 = 16-3 = 13 inches

4 0

3 years ago

In ΔQRS, the measure of ∠S=90°, the measure of ∠R=31°, and QR = 46 feet. Find the length of SQ to the nearest tenth of a foot.

ss7ja [257]

Answer:

$SQ=23.7\ ft$

Step-by-step explanation:

we know that

In the right triangle QRS

$sin(R)=\frac{SQ}{QR}$ ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

$sin(31^o)=\frac{SQ}{46}$

solve for SQ

$SQ=\frac{SQ}{46}sin(31^o)=23.7\ ft$

4 0

4 years ago

An equation is shown below:

Airida [17]

So you would do 5*2x +5*-8 +15=-15
Then simplify so it would be 10x + -40 + 15 = -15
Then add -40 and 15 together
Then it would be 10x + -25 = -15
Then add 25 to -25 and -15
So it would be 10x = 10
And then divide 10 from 10 with would be 1 so x = 1

8 0

4 years ago

Read 2 more answers

The perimeter of a rectangle id 192 ft. The ratio of its length to its width is 7:5. What are the dimensions of the rectangle?

kotykmax [81]

<h3>Answer:</h3>

56 ft by 40 ft

<h3>Explanation:</h3>

If we let x represent the multiplier for the ratio, then the perimeter is ...

... 2 × (7x +5x) = 24x = 192 ft.

Dividing by 24 gives

... x = 8 ft.