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valentina_108 [34]
3 years ago
9

I really need help in this 7th grade math

Mathematics
1 answer:
Rasek [7]3 years ago
4 0

Answer:

the awnser is 28

Step-by-step explanation:

the little 2 mean you times the 3 by it so it's 1+6. which is 7 and 18+2 is 20 and 20+7 is 28

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Use the function r=a+5 to find the value of r when a=10
Flauer [41]

Answer: 15=10+5

Step-by-step explanation:

Subtract 55 from both sides.

15-5=a

Simplify 15-5 to 10.

10=a

Switch sides.

a=10

3 0
3 years ago
Simplify | 4-9 | <br> A)13<br> B)5<br> C)-5<br> D)-13
ElenaW [278]

Answer: The Answer is -5

Step-by-step explanation:

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this is easy, we do 4-9 which is -5, you can even check this on a calculator. Plz follow me on twitch, InfernoEliteGamingYT21

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3 years ago
Read 2 more answers
1. The diameter of a cylinder is 48 meters. What is the radius?​
aev [14]

Step-by-step explanation:

diameter of cylinder is 48m

radius= diameter/2

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<h2>stay safe healthy and happy.</h2>
4 0
3 years ago
Read 2 more answers
Change 0.45° to equivalent minutes and seconds. Round to the nearest second if necessary.
konstantin123 [22]

0.45° in minutes is 27.36 minutes and in seconds is 21.6 seconds.

Why is it necessary to divide decimal degrees by 60 to obtain minutes and seconds?

  • In a complete rotation, circles and spheres have 360 degrees. One degree is divided into sixty minutes, and one minute is divided into sixty seconds.
  • You may see that your measurement is 91 full degrees plus 0.456 of a degree if you have 91.456 degrees.

How 0.45° is converted to equal minutes and seconds?

  • To convert 0.456 degrees to minutes, multiply 0.456*60 and you will get the answer as 27.36 minutes. You now have a total of 27 minutes and 0.36 of a minute.
  • To express 0.36 minutes seconds in decimal form, multiply 0.36*60 to get 21.6 seconds. You can round up to twenty two seconds because your decimal 0.6 is bigger than 0.5.

To learn more about minutes and seconds conversion, refer

brainly.com/question/2144524

4 0
2 years ago
Which of the following polynomials contain like terms
Nat2105 [25]
The first one has 2 like terms one is -4 and the other is * the 2nd question does have a like term z2 and z3 question 4 has 1 like term y3 and the last question has 4 like terms every number is a like term of each other
3 0
3 years ago
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