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Maslowich
3 years ago
12

20 POINTS

Mathematics
1 answer:
Fofino [41]3 years ago
3 0

Answer:

A because they are opposites.

Step-by-step explanation:

They equal the same they are just swapped the 2 set of numbers are the same but the first set of numbers are different when you add them they become the same number in the end :) hope this helps

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Four people must stand in a row for a group photo. How many different ways can they be lined up for the photo?
Finger [1]

Answer:

they can be lined up from front,side, back

Step-by-step explanation:

if u line them by side their in a straight line and hips faced to camera,or smallest to tallest  in face front camera or back point of view in jumping, or holding hands.

7 0
3 years ago
A ticketholder on the merry-go-round is riding a horse that is at a radius of 12 feet. How far does she travel after the merry-g
OLEGan [10]

The correct value of the angle of rotation is 3π/5

Answer:

Distance travelled ≈ 22.6 ft

Step-by-step explanation:

We are given;

Radius;r = 12 ft

Angle of rotation; θ = 3π/5

The formula for calculating distance travelled is;

Distance travelled = rθ

So, plugging in the relevant values;

Distance travelled = 12 x 3π/5

Distance travelled ≈ 22.6 ft

3 0
3 years ago
If f(x) = x2 + 3x - 4, find f(4).
Nat2105 [25]

Answer:

f(4) = 24

Step-by-step explanation:

Plug in 4 for x in the equation:

f(x) = x² + 3x - 4

f(4) = (4)² + 3(4) - 4

Remember to follow PEMDAS. PEMDAS =

Parenthesis

Exponents (&  Roots)

Multiplication

Division

Addition

Subtraction

and is the order of operation.

First, solve the power:

(4)² = 4 * 4 = 16

Next, multiply 3 with 4:

3 * 4 = 12

Next, combine the terms:

f(4) = 16 + 12 - 4

f(4) = (16 + 12) - 4

f(4) = 28 - 4

f(4) = 24

f(4) = 24 is your answer.

~

8 0
3 years ago
Read 2 more answers
Show work please and thanks!
Zigmanuir [339]
Hello there!

On those type of angles, the angles that are facing each other is equal to another.
So you can set up the equation like this : 

10x + 1 = 12x - 5
        -2x = -6
          x = 3

So the answer is x = 3.



In some problems, you have to find the angle.
Then you just simply substitute 3 into x.

10x + 1
10(3) + 1
30 + 1
31

12x - 5
12(3) - 5
36 - 5
31
The angles are 31° and 31°.

Hope this helped! :)
3 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!! The line plot shows the results of a survey of 10 boys and 10 girls about how many tim
Alchen [17]

Answer:

I think the answer is D. On average, boys saw the movie more than girls.

Do great on the test! ~ :)

7 0
3 years ago
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