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3 years ago

4) What is the difference between -5a + 7 and 3a - 2 ?

Mathematics

1 answer:

bonufazy [111]3 years ago

6 0

Answer:

(3a-2)- (-5a+7.)*

Step-by-step explanation:

The answer is

-2a+5

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3 years ago

The plane that passes through the point (-2,2,0) and contains the line with symmetric equations x=y=2z

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Answer:

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3 years ago

In the 30-60-90 triangle below, side s has a length of

mario62 [17]

Answer:

4, 4√3

Step-by-step explanation:

In a 30-60-90 triangle:

The leg opposite of the 30-degree angle is 1/2 of the hypotenuse: 8/2 = 4

The longer leg is √3 times the shorter leg: 4*√3 = 4√3

Check work: 4^2+(4√3)^2 = 8^2 --> 16+48 = 64 --> 64 = 64

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2 years ago

Help me with these two answers please

zhuklara [117]

Answer:

Step-by-step explanation:

the center is at (0, -2)

radius = $\sqrt{64}$ = 8

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3 years ago

An 11-inch by 8-inch piece of cardboard has squares cut out of the corners and is folded up to make an open-top box. If the volu

12345 [234]

Volume=14in^3

$\\ \sf{:}\implies (side)^3=14$

$\\ \sf{:}\implies side=\sqrt[3]{14}$

$\\ \sf{:}\implies side=2.5in$

Now

L=11in
B=8in

$\\ \sf{:}\implies Area=11(8)=88in^2$

Cut it into 10 parts as per question(Open side means five sides hence it will be 5×2=10)

$\\ \sf{:}\implies 88/10=8.8in$

Now divide by previous side

$\\ \sf{:}\implies \dfrac{8.8}{2.5}=3.52=3.5$

Option D

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3 years ago