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Elza [17]
3 years ago
6

Please help with this khan academy question

Mathematics
2 answers:
Phoenix [80]3 years ago
8 0
A = 30 hope this helped
Ksenya-84 [330]3 years ago
4 0

Answer:

<A = 30°

Step-by-step explanation:

5x - 18 = 3x + 42

2x = 60

60/2 = 30

<A = 30°

hope this helps :)

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ZA and ZB are complementary angles. If mZA = (2x + 10)° and m
fiasKO [112]

Answer:

∠ZB = 54°

Step-by-step explanation:

Given:

Pair of complementary angles

∠ZA = (2x + 10)° and m

∠ZB = (3x + 15)

Find:

Measure of ∠ZB

Computation:

complementary angles

a + b = 90°

∠ZA + ∠ZB = 90°

(2x + 10) + (3x + 15) = 90

5x + 25 = 90

x = 13

So,

∠ZB = (3x + 15)

∠ZB = 13(3) + 15

∠ZB = 54°

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2 years ago
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Likurg_2 [28]

A- solve bracket first so

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A=5

B=1

C=15

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5 0
3 years ago
The slope, m, of a linear equation can be found using the formula <img src="https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7By_2%20-%
Svetradugi [14.3K]

Answer:

Answer c: m(x2 - x1) + y1 = y2

Step-by-step explanation:

Hi there!

Let´s start writting the formula

m = \frac{y2 -y1}{x2-x1}

If we multiplicate both sides by (x₂ - x₁):

m(x2 - x1) = y2 - y1

Then if we add y₁ to both sides of the equation:

m(x2 - x1) + y1 = y2

Then, the right answer is the answer c)

Have a nice day!

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Step-by-step explanation:

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joe has eaten 2/5 of a pizza jane has eaten 1/7 of a pizza how many times more pizza has joe eaten than jane
Katena32 [7]
To find that subtract Jane's own from Joe's so
2/5-1/7=9/35
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