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Jlenok [28]
3 years ago
10

12.42 + (-20) =A) 4 B) -4 C)-12 D) 12PLEASE answer quick ​

Mathematics
1 answer:
Ivan3 years ago
5 0

Answer:

b

Step-by-step explanation:

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Solve for x. 1 - 4x < 9
pishuonlain [190]
Hello!

The answer is -2. How do we find this out?

Step 1: Subtract 1 from both sides, isolate the 1 - 4 ( 1 - )

-4x < 9 - 1

Step 2: Do the subtraction..

-4x < -8.

Step 3: Divide both sides by -4, isolate the -4

x > -8/4

Step 4: Do the division.

x > -2.

Hope this helps! ☺♥
4 0
3 years ago
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Evaluate the exponential expression: (2x)2nd power −3y2nd power =___, if x = 5 and y = 3.
damaskus [11]

ANSWER

A. 73

EXPLANATION

The given expression is

(2{x})^{2}  - 3{y}^{2}

We substitute x=5 and y=3 to obtain:

(2 \times 5)^{2}  - 3{(3)}^{2}  =  {10}^{2}  - 3 \times 9

This simplifies to,

= 100 - 27

= 73

The correct choice is A.

8 0
3 years ago
The orbit of the Moon around the Earth is an ellipse with Earth at one focus. If the length of the major axis of the orbit is 47
nexus9112 [7]

Answer:

226,335

251,401

Step-by-step explanation:

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7 0
3 years ago
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Please answer i need it in 5-10 minutes please
matrenka [14]

Answer:

it is 5

Step-by-step explanation:

the second number is the y intercept

3 0
3 years ago
#4 please help! One question seen in pic
kiruha [24]

Answer:

B. (x - 2)(x + 2)

Step-by-step explanation:

The answer is b. If you have (x + a)(x - a), the variables will cancel each other out. For example, if we take the answer (x - 2)(x + 2) and factor it out, we get:

x² - 2x + 2x - 4

Then it becomes just:

x² - 4 because the x to the power of one has been canceled. This proves his theory wrong.

7 0
3 years ago
Read 2 more answers
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