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iragen [17]
3 years ago
7

I need help answering this question!

Mathematics
1 answer:
Molodets [167]3 years ago
8 0

Answer:

2x+7=-3+2x multiply what’s in the bracket by the negative sign

Collect like terms

2x-2x=-3-7, so

0=-10

Step-by-step explanation:

I hope this is the answer, if it helped please give me brainliest

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What is the degree measure of an arc 4 pie ft long in a circle of radius 10 ft
Bess [88]

Answer:

ow do you find arc length without the radius?

To calculate arc length without radius, you need the central angle and the sector area:

Multiply the area by 2 and divide the result by the central angle in radians.

Find the square root of this division.

Multiply this root by the central angle again to get the arc length.

The units will be the square root of the sector area angle.

Check your result with Omni Calculator.

Or the central angle and the chord length:

Divide the central angle in radians by 2 and perform the sin function on it.

Divide the chord length by double the result of step 1. This gives you the radius.

Multiply the radius by the central angle to get the arc length.

Check your result with Omni Calculator

Step-by-step explanation:

7 0
3 years ago
Keisha had $54 when she went to a bookstore. She
storchak [24]
54 - a = 12 i believe
4 0
3 years ago
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HELP me with this question PLEASE
Anuta_ua [19.1K]

Answer:

YES

Step-by-step explanation:

Why is the classmate correct?

The reason why the classmate is correct is that everything can turn 360 degrees. This means that a square, has to turn 360 degrees, and it does that by doing 90x4. This means that it has 90-degree angles, which turn 4 times. And that makes 360. That's how this is also correct. Because this classmate turned a figure 270 degrees clockwise, and also, 360-270=90, which means that turning that figure 90 degrees counter-clockwise will make it in that same position.

To check whether this is right or not, take an object, probably like a book. Then turn it 90 degrees to counter-clockwise, and note down the position, that the front of the book is now facing left, and the back of the book is now facing right. Then, turn it back to normal position, (back of the book facing you), then, turn it 3 times 90 degrees towards Clockwise, in that way, you can see, that the book turns in the same way it did when you did 90 degrees counter-clockwise!

<h2>I checked this, it's 176 words long.</h2>

Thanks!

Answered by: FieryAnswererGT

#learnwithbrainly

8 0
2 years ago
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To create an entry​ code, you must first choose 3 letters and​ then, 6 ​single-digit numbers. How many different entry codes can
Anettt [7]
Well, you would use factorization for this, which would be MORE than 54 different codes! :D

7 0
3 years ago
Read 2 more answers
4. What is the measure of the missing angle?
defon

Answer:

X = 28

Step-by-step explanation:

The angle is 90 degrees in total and one portion of the angle is 62 degrees

You subtract the 62 degrees from the 90-degree angle to figure out the other unknown portion of the angle

90 - 62 = 28

8 0
2 years ago
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