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Charra [1.4K]
3 years ago
8

Which are perfect squares? Check all that apply.

Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

Step-by-step explanation:

.36 = .6^2

.16  = .4^2

.81  = .9^2

.64 = .8^2

docker41 [41]3 years ago
3 0

Answer:

  • 64, 16, 36, 81

Step-by-step explanation:

  • \sqrt{16} = 4
  • \sqrt{36} = 6
  • \sqrt{64} = 8
  • \sqrt{81} = 9
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Write 25 times 10 to the 6 power in scientific notation
polet [3.4K]

Answer:

2.5*10^7 thank you

Step-by-step explanation:

thank you

3 0
3 years ago
Dinosaurs have been extinct for about 6.5 X 10 years, while Neanderthals have been extinct for about 30 x 109 years. About how m
Oxana [17]

Answer: 1,000 times longer

Step-by-step explanation: Dino have been extinct for about 60 million years ago, and Neanderthals have been extinct for about 40,000 years.

60,000,000 divided by 40,000 is 1500 so 1000 times longer (sorry if im wrong i'm new)

6 0
3 years ago
Which ordered pair is a solution of the equation 2x-3y=19
goldenfox [79]
D because 5 times 2 is 10 and - cuts off - so -3 times -3 would be 9 so 10+9 is 19 :)
7 0
3 years ago
Read 2 more answers
What is the value of xif 5x + 55 = 35?
Anettt [7]

Answer:

-4

Step-by-step explanation:

5 x(-4) = -20

50 - 20 = 35

8 0
3 years ago
Evaluate each expression using the values m = 7, r = 8, and t = 2.
user100 [1]

So I'll walk through the first 2. Then please try the other ones and let me know if you run into more problems.

5m-6

If m is equal to 7, then replace m with 7.

5(7)-6

5x7=35 so the expression is now 35-6. Solve.

35-6=29

So that was the first one.

4m+t

We just do what we do with the first problem.

4(7)+(2)

4x7=28 so the expression is 28+2.

28+2=28

---

hope it helps

p.s. When there is subtraction, add. When there is division, multiply to cancel that out. When there is multiplication, divide to cancel. etc.

6 0
3 years ago
Read 2 more answers
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