3 years ago

Thực hiện phép tính:5x^2(x-2)

Mathematics

1 answer:

Mandarinka [93]3 years ago

6 0

Answer:

i can't understand

Step-by-step explanation:

ENGLISH PLS ?

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ludmilkaskok [199]

Answer:

$\tan(51°) = \frac{10}{x} \\x = \frac{10}{ \tan(51°) } \\ x = \frac{10}{1.235} \\ \boxed{ x = 8.1}$

<h3>★ Value of x is <u>8.1</u>.</h3>

$\sin(51°)= \frac{10}{H} \\ h = \frac{10}{ \sin(51°) } \\ H= \frac{10}{0.777} \\ \boxed{H= 12.8676}$

<h3>★ Value of H is <u>12.8676</u>.</h3>

Remember:

tan∅=Perpendicular/Base
sin∅=Perpendicular/Hypotenuse

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3 years ago

2) Eight is 5 less than<br> twice the number R.

posledela

Answer:

8-5 times R

Step-by-step explanation:

you subtract 8-5 to get that answer and then you do less than twice the number r i think this is correct hope it helps :)

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3 years ago

June drove 116 miles and 5.8 hours at this rate how far will she drive in 5 hours

Sonbull [250]

First we need to calculate how fast she was going in one hour:
116 / 5.8 = 20

then multiply that by 5 to get how far she will go in 5 hours

20 * 5 = 100

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3 years ago

6(3a-4) =<br><br> need help please

Dovator [93]

Answer:

Step-by-step explanation:

Use distributive property: a(b + c) = ab + ac

$6(3a-4)=(6)(3a)+(6)(-4)=\boxed{18a-24}$

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3 years ago

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PLEASE ANSWER QUICK<br><br> THANK YOU

Lesechka [4]

Answer:

D)-3x+5

Step-by-step explanation:

Hope this helps ;)

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3 years ago

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