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LiRa [457]
3 years ago
9

Use the pythagorean theorem 1) a=7 b=12

Mathematics
1 answer:
steposvetlana [31]3 years ago
5 0

Answer:

√193

Step-by-step explanation:

7^2 = 49

12^2 = 144

144 + 49= 193

√193 because you are trying to find c not c^2

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2x+5y=12
anastassius [24]
Y = -3x - 1......so we sub in -3x - 1 in for y in the other equation

2x + 5y = 12
2x + 5(-3x - 1) = 12....now distribute the 5 through the parenthesis
2x - 15x - 5 = 12...add 5 to both sides
2x - 15x = 12 + 5..combine like terms
-13x = 17...divide both sides by -13
x = -17/13
now sub in -17/13 for x in the other equation
y = -3x - 1
y = -3(-17/13) - 1
y = 51/13 - 1
y = 51/13 - 13/13
y = 38/13

so the solution is (-17/13, 38/13)

8 0
3 years ago
What does-25=1/3n-10 equal
Nutka1998 [239]

Answer:

-45

Step-by-step explanation:

add 10 to -25, then divide 1/3 to that answer, which is -15. and you get -45

6 0
3 years ago
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An investment of $250 pays 11% annual interest, compounded quarterly. What is the interest earned in 10 years?
lions [1.4K]
<span>The interest earned in 10 years is B. $739.97.</span>
4 0
3 years ago
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When analyzing three linear functions, Daniel noticed that they all intersected at the point (7, 7). What conclusion can Daniel
liberstina [14]
That it has the highest y-intercept of all of the three linear functions.

(and that the question could be worded better, but don't put that in your answer)
7 0
3 years ago
Grace is comparing cell phone plans. A prepaid phone plan costs $0.20 per minute and has no monthly fee. A contracted phone plan
Mkey [24]

Answer:

The prepaid phone plan will have a steeper line and lower y-intercept.

I hope this is right

Step-by-step explanation:

prepaid phone plan y = .20x

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3 years ago
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