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enyata [817]
3 years ago
10

Oak street and elm street run parallel to each other. when main street intersects them, it forms interior < 4, measuring 50.

what is the measure of < 8 ?
A. 90 B. 130 C. 60 D. 50
Mathematics
2 answers:
Nezavi [6.7K]3 years ago
6 0

Answer:

D

Step-by-step explanation:

They are corresponding angles hence making them the same. Sorry if I'm wrong.

slavikrds [6]3 years ago
5 0
I think it is C hope this helps
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Show work to triangles 2 and 3 explaining why they are right triangles
olganol [36]

Answer:

Step-by-step explanation:

In order for a triangle to be a right triangle, it has to fit into Pythagorean's Theorem:

a^2+b^2=c^2 where c is the hypotenuse.

We need to figure out which is the longest side in each of those triangles and that is the hypotenuse.

In the first set, the sqrt of 443 is 21.04, but that is not the longest side; 24 is. So the Theorem formula for that is:

\sqrt{443}^2+17^2=24^2 which gives us

443 + 289 = 576, but 732 does not equal 576, so that one is not right.

In the second set, the sqrt of 725 is the longest side, so that formula is:

\sqrt{725}^2=14^2+23^2 which gives us

725 = 196 + 529, and 725 does equal 725, so that one is right.

In the third set, the sqrt of 890 is the longest side, so:

\sqrt{890}^2=19^2+23^2, which gives us

890 = 361 + 529, and 890 = 890, so that is a right triangle as well. That's how you know those are right, compared to the first one that is not.

6 0
3 years ago
Need help on this please help
kobusy [5.1K]

Answer:

The measure of ∠A is 127°.

Step-by-step explanation:

The interior angles of a triangle always add up to 180°. Since you can fix <em>three</em> triangles into a pentagon, the sum of its interior of angles is 540° You could also look at how many angles there are (5), multiply that number by 180°, then subtract 360° from the product.

540° - (113° + 80° + 130° + 90°) = ∠A

540° - 413° = 127°

∠A = 127°

<em>Hope this helps,</em>

<em>~ Nicki ~</em>

8 0
3 years ago
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When –3 is multiplied by the sum of a number and 8, the result is –21. Find the number.
vovangra [49]
Let's take the number as a
-3 (a + 8) = -21
a + 8 = (-21 / -3)
a + 8 = 7
a = -1

that number is -1
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Gekata [30.6K]

17000x^2(85x-2) Sorry if i am wrong I believe that is the answer

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Help me please or I fail this year
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I can’t see the picture properly so I can’t assist you furthermore try to get the picture more clear
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3 years ago
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