3 years ago

What is the measure of interior angle ABC of the regular polygon shown?

1 answer:

5 0

So because angles in an decagon add up to 360 degrees, to find one angle, we have to divide 360 degrees by 10. 360/10=36
But here we just have one angle to find the interior of A, B and C we have to multiply 36 by 3 = 180 degrees

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Mamont248 [21]

Answer:

45 degrees

Step-by-step explanation:

you would do 20-(-25) then that turns to 20+25 and you get 45

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=a%20%3D%20p%20%2B%20prt" id="TexFormula1" title="a = p + prt" alt="a = p + prt" align="absmidd

Alexus [3.1K]

Answer:

$\frac{A}{1 + rt}$

Step-by-step explanation:

$a = p + prt$

Distributive property:

$A = P(1 + rt)$

The divide both sides by $( 1 + rt)$ :

$\frac{A}{1 + rt}$

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3 years ago

Angles P and Q are complementary.

GenaCL600 [577]

Answer:

Explained below.

Step-by-step explanation:

Complementary angles are angles that sum up to 90°.

Here,

Angle P = 2x
Angle Q = 7x

Then,

Angle P + Angle Q = 90°

2x + 7x = 90°

9x = 90°

x = 90/9

x = 10°

Therefore,

Measurement of Angle P = 2x = 2*10 = 20°
Measurement of Angle Q = 7x = 7*10 = 70°

$\rule{150pt}{2pt}$

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2 years ago

Solve each quadratic equation. Show your work. x^2 + 3x = 10

Oxana [17]

$x^{2} +3x=10$
$x^{2} +3x-10=0$
$x^{2} +5x-2x-10=0$
x(x+5)-2(x+5)=0
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Answer:

Step-by-step explanation:

where are the options?

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3 years ago