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3 years ago

The lines a and b intersect at point C. What is the value of y?

Mathematics

2 answers:

Misha Larkins [42]3 years ago

8 0

Answer:

y is not mentioned in the question.

40°=(2z+10)°

40°-10=2z

30=2z

30/2=z

15=z

Amanda [17]3 years ago

7 0

Using the definition of vertical angles, the value of z is: 15.

<h3>Vertical Angles Pair</h3>

The two pairs of opposite angles formed when two straight lines intersect are called vertical angles, and are therefore congruent to each other.

Thus:

2z + 10 = 40

2z = 40 - 10

2z = 30

z = 30/2

z = 15

Therefore, using the definition of vertical angles, the value of z is: 15.

Learn more about vertical angles on:

brainly.com/question/1673457

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svetlana [45]

Standard deviation is the square root of the variance. For the square root of a number to be greater than the number, the number must be between 0 and 1.
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3 years ago

A sold a commodity to b at 10% profit b again sold it to a at 10% loss. What does a have

ozzi

Let's answer this step-by-step.

First of all, let's estsblish the original price of the commodity as being 100%. Therefore:

Original price of commodity = 100%

Then, when A sold the commodity to B, it was sold at a 10% profit. Therefore:

Price of commidity when A sold to B:
100% x 1.1 = 110%

After that, when B sold it back to A, it was sold at a 10% loss. Therefore:

Price of commodity when B sold to A:
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Hence, A now has 99% of the original value of the commidity.

6 0

3 years ago

HOMEWORK HELP NEED IT FAST PLEASE!

Lunna [17]

I hope this helps you

6 0

3 years ago

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Tan9°. tan27°. tan45°. tan72°. tan81°= 1 could u plz solve it with clear process

Inga [223]

Correct question:-

Prove that tan9.tan17.tan45.tan73.tan81=1

LHS

$\\ \sf\longmapsto tan9.tan17.tan45.tan73.tan81$

$\\ \sf\longmapsto tan9.tan81.tan17.tan73.tan45$

$\\ \sf\longmapsto tan(90-81).tan81.tan(90-73).tan73.1$

$\\ \sf\longmapsto cot81.tan81.cot73.tan73$

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2 years ago

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Korvikt [17]

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$-x-2=2*3x-2*6$
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$-2=6x-12+x$
$-2=7x-12$ add 12
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$x= \frac{10}{7}$
Answer : x= 1 3/7

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3 years ago

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