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olya-2409 [2.1K]
2 years ago
12

Need help 8th grade math

Mathematics
2 answers:
SIZIF [17.4K]2 years ago
7 0

Answer:

60°

Step-by-step explanation:

outside angle = two opposite inside angles

10x - 45°  = 4x + 3x

3x = 45°

x = 15°

m∠B = 4x

m∠B = 4(15°)

m∠B = 60°

garik1379 [7]2 years ago
5 0
The answer is 60 measures
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{(4z-7,z-4,z) |z is any real number} z=-5
weeeeeb [17]

The set when z = -5 is {-27, -9, -5}

<h3>How to determine the set elements?</h3>

The set is given as:

{(4z-7,z-4,z) |z is any real number}

When z=-5, we have:

4z - 7 = 4(-5) - 7 = -27

z - 4 = -5 - 4 = -9

z = -5

So, we have:

{(4z-7,z-4,z) |z is any real number} ⇒ {-27, -9, -5}

Hence, the set when z = -5 is {-27, -9, -5}

Read more about sets at:

brainly.com/question/8053622

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2 years ago
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No.

Step-by-step explanation:

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2 years ago
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UkoKoshka [18]

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Step-by-step explanation:

Factor out the 4.

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3 years ago
Which of the following is true about the expression
azamat

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Step-by-step explanation:

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What is the sum of an infinite geometric series if a1 = 5 and r = 1⁄3?
Vika [28.1K]

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Step-by-step explanation:

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3 years ago
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