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Karo-lina-s [1.5K]
3 years ago
8

5(-2x-3) - 4x -5 =78

Mathematics
1 answer:
Lesechka [4]3 years ago
6 0

Answer:

x=-7

Step-by-step explanation:

We want to solve

5(-2x-3) - 4x -5 =78

We expand to get:

-10x-15-4x-5=78

We group the similar terms to get:

-10x-4x=78+20

Combine similar terms

-14x=98

Divide through by -14

x=\frac{988}{-14}=-7

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58 yd<br> 73 yd<br> Use 3.14 Instead Of Pie Symbol
defon

Answer:

771096.8 \: yd^{3}

Step-by-step explanation:

If you are trying to find the volume, you would use the formula:

\pi \: r ^{2} (h)

You would plug in the radius (r), which is 58, and then plug in the height, which is 73.

Make sure you remember to use 3.14 and not the pi key if you are using a calculator.

The final answer is 771,096.8 yd^3

7 0
4 years ago
In the name carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains
kherson [118]

Answer:

The correct option is B. two oxygen atoms

Step-by-step explanation:

The molecular formula for carbon dioxide is given by :

CO_2

Here, the alphabet C stands for Carbon and the alphabet O stands for Oxygen.

And the prefixes of each of these words represents the number of atoms present of the corresponding element in one molecule of carbon dioxide.

So, The prefix of the first word that is C is 1

⇒ One molecule of carbon dioxide contains one atom of Carbon.

The prefix of the second word that is O is 2

⇒ One molecule of carbon dioxide contains 2 atoms of Oxygen.

Therefore, The correct option is B. two oxygen atoms

7 0
3 years ago
Read 2 more answers
Subtract: (2x2 − 7x + 5) − (−6x2 − 4x − 2)
Juli2301 [7.4K]
2x^2 - 7x + 5 - (-6x^2 - 4x - 2) =
2x^2 - 7x + 5 + 6x^2 + 4x + 2 =
8x^2 - 3x + 7 <==
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3 years ago
Which statement is true regarding the graphed functions ?
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Step-by-step explanation:

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3 years ago
Bo is buying a board game that usually costs B dollars. The game is on sale, and the price has been reduced by 18%.
Paladinen [302]

Answer:

The answer is E.

Step-by-step explanation:

If the game costs $10 originally then the following would be true:

B = $10


$10.00 x .18 = $1.80  so the discount is $1.80


10.00 - 1.80 = $8.20


6 0
3 years ago
Read 2 more answers
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