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3 years ago

14

EASY MATH BUT PLEASE HELP BTW WILL MARK BRAINLEST:D

1 answer:

Varvara68 [4.7K]3 years ago

4 0

Answer:

Option C

Step-by-step explanation:

Multiply 9 to both parts of the binomial.

27x^3 - 18

Please mark for Brainliest!! :D Thanks!!

For more information or quesitons, please comment below and I'll respond ASAP!

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The speed of light is 3 x 10 8 meters per second (m/s). What is the speed of light in miles per year (mi/yr)

GenaCL600 [577]

Answer:

the speed of light in miles per year is 5.88 × 10^12 mi / year

Step-by-step explanation:

The computation of the speed of light in miles per year is shown below;

As we know that

1 m/sec = 1 ÷ 1609 mi/sec

3 ×10^8 m/sec = (3 × 10^8) ÷ (1609)

= (3 × 10^8 × 60 × 60 × 24 × 365) ÷ (1609)

= 5.88 × 10^12 mi / year

Hence, the speed of light in miles per year is 5.88 × 10^12 mi / year

8 0

3 years ago

Water boils at different temperatures at different elevations. The boiling temperature of water is 212 degrees * F sea level (0

Nikolay [14]

Answer:

The elevation when the boiling point of water is $190$ ° $F$ is 12790.70 feet

Step-by-step explanation:

Let every 1,000 feet of elevation be $x$ . Hence, we can write

$T = 212$ $- 1.72x$

Where $T$ is the boiling temperature of water at different elevations

Now, to the determine the elevation when the boiling point of water is $190$ ° $F$ .

We will determine $x$ by putting $T = 190$ ° $F$ .

Hence,

$T = 212$ $- 1.72x$

$190$ $= 212$ $- 1.72x$

$190 - 212$ $= - 1.72x$

$- 22$ $= - 1.72x$

$22 = 1.72x\\x = \frac{22}{1.72} \\x = 12.79070$

Since $x$ represents every 1,000 feet of elevation, then the elevation when the boiling point of water is $190$ ° $F$

$12.79070$ × $1000\\$ $= 12790.70$ feet

Hence, the elevation when the boiling point of water is $190$ ° $F$ is 12790.70 feet

8 0

4 years ago

Can someone help me plz

andrew-mc [135]

Use hypotenuse leg theorem.

7 0

3 years ago

WILL GIVE BRAINLIEST

Volgvan

Option D is the logical and the right answer

4 0

3 years ago

Read 2 more answers

( 3 /4 ÷ 3 /100 −47/2 )÷4/2 · 2 /3 +7/6

slava [35]

Lol this answer:
(3/4÷3/100-47/2)÷4/2.2/3+7/6
(3/4.100/3-47/2).2/4.2/3+7/6
(25-47/2).2/2.1/3+7/6
3/2.2/2.1/3+7/6
1/2+7/6
5
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3
```2
1
` —
` 3

8 0

4 years ago