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zlopas [31]
3 years ago
13

*

Mathematics
1 answer:
Phoenix [80]3 years ago
6 0

Answer:

Step-by-step explanation:

Are the sides consistent with the Pythagorean Theorem?

6² + 8² ≟ 9²

36 + 64 ≠ 81, so it is not a right triangle.

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Given the sequence {-1, 3, 7, 11, ...}, find a25
Lesechka [4]

here,

a1=-1

a2=-1+4 =3

a3= 3+4=7

a4=7+4=11

using the general formula for nth term of an ap

an =  - 1 + (n - 1)d \\ here \: a =  - 1 \: and \: d = 4 \\  \\ an =  - 1(n - 1)(4) =  - 1 + 4 - 4  \\ 4n - 5 \\  \\ hence \: a25  =  \\ 4(25) - 5 = 100 - 5 = 95

Answer= a25 = 95

4 0
3 years ago
If the surface area of a sphere is 100π cm^2, what is the radius?
IrinaK [193]
Surface area of sphere=100pi cm^2
4pi×r^2=100 pi
pi cancel on both sides
4×r^2=100
r^2=100/4
r^2=25
so r=5
So option b 5 cm is correct.
3 0
3 years ago
How do u draw a double number line for 2/3 divided by 4?
Mademuasel [1]
2/3 divided by 4= 2/3x1/4 (flip 4 around). 2x1=2 & 3x4=12. 2/12 or 1/6
3 0
4 years ago
This is 20 points if you don't know the answer please don't put your question down thank you...
MissTica

Answer:

I believe it is C) They both involve writing a rate.

hope this helps

Step-by-step explanation:

6 0
3 years ago
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Triangle ABC is a right triangle. Point D is the midpoint of side AB and point E is the midpoint of side AC. The measure of angl
Sophie [7]

Answer: D is the correct answer

Step-by-step explanation:

Just took the test

6 0
3 years ago
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