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Arisa [49]
3 years ago
14

What dose 2 + 2 = ?????????

Mathematics
1 answer:
Ivenika [448]3 years ago
4 0

Answer: 4

Step-by-step explanation:

Just add

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9a + 18c. What is the value of the expression when a = −5 and c = −1?
saw5 [17]
1. plug in the numbers for the variables, like this: 9(-5)+18(-1)

2. solve
Hopefully this helps! Let me know if you need more explanation.
4 0
3 years ago
Find the value of x that solves the system shown below. show the work that leads to your answer.
maksim [4K]

Answer:

x= -3

Step-by-step explanation:

I posted a photo on how I found this answer

Hope this helped

6 0
3 years ago
Read 2 more answers
Please help ASAP!!!!Determine the total number of outcomes.
Cerrena [4.2K]

Answer:

I believe it would be A

Step-by-step explanation:

A deck of cards has 52 cards in it, so it cant be C or D, and with all the possibilities it could not be B

8 0
3 years ago
What is the surface area of the cylinder with height 6 ft and radius 6 ft? Round your
Paul [167]

The surface area of this cylinder to the nearest thousandth is equal to 452.448 square feet.

<u>Given the following data:</u>

  • Height of cylinder = 6 ft.
  • Radius of cylinder = 6 ft.

To calculate the surface area of this cylinder to the nearest thousandth:

<h3>How to calculate surface area.</h3>

Mathematically, the surface area (SA) of a cylinder is given by this formula:

SA = 2\pi rh + 2\pi r^2

<u>Where:</u>

  • h is the height.
  • r is the radius.

Substituting the given parameters into the formula, we have;

SA = 2 \times 3.142 \times 6 \times 6  + 2 \times 3.142 \times 6^2\\\\SA = 226.224 + 226.224

SA = 452.448 square feet.

Read more on surface area here: brainly.com/question/21367171

4 0
3 years ago
The dot product of u with itself is 12. What is the magnitude of u?
Brilliant_brown [7]
Dot product is 
a*b = |a|*|b|*cosα.
In our case
u*u =|u|*|u|*cos 0
u*u =|u|*|u|
12=|u|²
|u|=√12=√(4*3)=2√3
Answer: <span>D. 2√3</span>
5 0
4 years ago
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