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3 years ago

What’s the size of angle x

Mathematics

1 answer:

ki77a [65]3 years ago

7 0

Answer:

65 degrees.

Step-by-step explanation:

It's hard to explain, but I'll try:

The outside of the first two angles is 105 and 140. Half a whole angle is 180. So, you do

180-140=40. The inside is 40.

And then 180-105=75.

Then you add the two and subtract them from 180:

40+75= 115

180-115=65

Voila!

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What is the mathematical reasoning for Step 3?

Colt1911 [192]

Based on the operation in step 3, the mathematical reasoning that we see is the Associative property.

<h3 /><h3>What is the reasoning in step 3?</h3>

Step 2 was:

= 3/4x (-8x) + (3/4x) (6)

Step 3 then became:

3/4 x (-8) × x × x + 3/4 x 6x

This shows the associative property because the numbers were regrouped but because they are being multiplied by each other, the result will not change.

Find out more on the associative property at brainly.com/question/13181.

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2 years ago

The length of the sides DEF are 12,16,and 20. Find the perimeter of the triangle formed by connection the midpoints of the sides

Mekhanik [1.2K]

Answer:

24 units

Step-by-step explanation:

According to the midsegment theorem, the length of each side of the formed triangle is the half the parallel side of DEF.

<u>So the perimeter is:</u>

P = 1/2(12 + 16 + 20) = 24

6 0

2 years ago

I need help what is (6x9)+(7+3)=

Inessa05 [86]

Answer:

Step-by-step explanation:

Evaluate the parenthesis before doing the addition, that is

(6 × 9) + (7 + 3)

= 54 + 10

= 64

3 0

3 years ago

What is the order of this from least to greatest. 4.37, 5.844, 5 21/25,117/20

vesna_86 [32]

21/25, 4.37, 5, 5.844, 117/20

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3 years ago

What is the x -coordinates of the point on the coordinate grid.

zaharov [31]

Answer:

-1.5

Step-by-step explanation:

You just have to count on the graph

5 0

3 years ago

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