2 years ago

Find the product of (2x + 5y)2. (2 points)

Mathematics

1 answer:

nasty-shy [4]2 years ago

6 0

4x + 10y

Hope it’s right
Best luck with your studying

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What Is -0.75-(-2/50)+0.4(-3/4)? Explain and answer the question please

lilavasa [31]

The answer is -1.01
I first changed the signs of the ones i could. So <span>-0.75+(2/50)+0.4(-3/4)
Then i multiplied the 0.4*-3/4 which equals -0.3
So you are left with </span><span>-0.75+(2/50)-0.3
2/50 is equal to 0.04 so now it is </span> -0.75+0.04-0.3 and the rest is simple math. Which equals -1.01

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3 years ago

Solve

Strike441 [17]

Answer:

x=± $\sqrt{15/2}$

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

If y varies inversely as x and y is 2.5 when x is 6, what is y when x is 4? a. 3.75 b. 1.67 c. 0.1 d. 7.5 Please select the best

REY [17]

Because y varies inversely as x, therefore
$y= \frac{k}{x}$
where k = constant.

When x = 6, y = 2.5. Ther efore
$\frac{k}{6} = 2.5$
Cross multiply.
k = 6 x 2.5 = 15

The equation is
$y = \frac{15}{x}$

When x = 4, obtain
$y = \frac{15}{4}= 3.75$

Answer: a. 3.75

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3 years ago

Read 2 more answers

1) The width of a rectangle is 6 meters less than its length. The area is 315 square meters. Find the length of the

Gre4nikov [31]

Answer:21

Step-by-step explanation:

x=length

x(x-6)=315

x^2-6x=315

x^2-6x-315=0

(x-21)(x+15)

x=21, x=-15

x cannot be negative so the only answer is 21

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3 years ago

Robyn uses 1 cup of blueberries to make each loal

navik [9.2K]

1 cup of blueberries = 1 loaf, so 2 cups of blueberries = 2 loaves. The answer is 2

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3 years ago