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3 years ago

Pic included> a or c?

Mathematics

1 answer:

Olenka [21]3 years ago

8 0

I believe the answer would be a.

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Given ABCD slove for X ?

Over [174]

Answer:

∠D = 180°- ∠A

∠D = 180° - (30+5x)

15+10x = 180° - 30-5x

15x = 180 - 30 - 15

15x= 135

x = 9

8 0

3 years ago

Omar wants to buy some shoes online for $32 per pair including tax, and the shipping is $4.

Alika [10]

Answer:

If the price of the shoes doesn't change and the shipping doesn't change the answer would be 2

Step-by-step explanation:

100 ÷ 32 is 2.8

3 0

3 years ago

Please help me!!! Will get brainliest!!!

kaheart [24]

The graph does not support his claim. The vertical scale does not start At 0 which distorts the percent of change.

4 0

4 years ago

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Which phrase best describes the association between variables X and Y?

Len [333]

Answer:

Strong Negative Association

Step-by-step explanation:

It is clear that the line goes down, so it is negative. The points do not form a perfect line, so they would have to be strong.

3 0

3 years ago

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The area of the regular octagon is approximately 54 cm2. What is the length of line segment AB, rounded to the nearest tenth?

erastova [34]

Answer:

AB = 3.3 cm

Step-by-step explanation:

The formula to find out area of a regular octagon is given by

$A=2(1+\sqrt{2})a^{2}$

where a is the length of each side of the regular octagon.

Plugin A=54 into the formula

$54=2(1+\sqrt{2})a^{2}$

Divide both sides by 2

$\frac{54}{2} =\frac{2}{2} (1+\sqrt{2})a^{2}$

$27 = (1+\sqrt{2})a^{2}$

Plugin √2 as 1.41

$27 = (1+1.41)a^{2}$

$27 = (2.41)a^{2}$

Divide both sides by 2.41

$\frac{27}{2.41} = \frac{2.41}{2.41} a^{2}$

$11.20 = a^{2}$

Taking square root on both sides

$\sqrt{11.20} = \sqrt{a^{2}}$

a = 3.346

a = 3.3 cm (rounded to nearest tenth)

so, length of side AB = 3.3 cm

6 0

3 years ago

Read 2 more answers