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2 years ago

How do you find m ∠ A ? (A=2x + 21)A. 23°B. 45°C. 30°D. 67°

Mathematics

1 answer:

yawa3891 [41]2 years ago

3 0

Answer: Its 45*

Step-by-step explanation:

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Completely Factor 2n^2-23n+45=0

Anton [14]

Answer:

x=5/2, 9

Step-by-step explanation:

3 0

2 years ago

Pentagon TEXAS has vertices at T(1, 8), E(3, 8), X(6, 2), A(3, 2), and S(1, 4). What is the area of Pentagon TEXAS?

Tamiku [17]

The area of the pentagon is 19 square units

The coordinates of the pentagon are given as:

$T = (1, 8)$

$E =(3, 8)$

$X =(6, 2)$

$A=(3, 2)$

$S = (1, 4)$

The area of the pentagon is then calculated using:

$Area = \frac 12|(x_1y_2+x_2y_3+x_3y_4+x_4y_5+x_5y_1) -(y_1x_2+y_2x_3+y_3x_4+y_4x_5+y_5x_1)|$

So, we have:

$Area = \frac 12|(1 \times 8 +3 \times 2+6\times2+3 \times 4 + 1 \times 8) -(8\times3+8\times6+2\times3+2\times1+4\times1)|$

Simplify the expressions in both brackets

$Area = \frac 12|46 -84|$

$Area = \frac 12|-38|$

Remove absolute bracket

$Area = \frac 12 \times 38$

$Area = 19$

Hence, the area of the pentagon is 19 square units

Read more about areas at:

brainly.com/question/1423568

7 0

1 year ago

Solve the following: 4x-1/2 = x+7

MArishka [77]

Answer:

x = 2.5

Step-by-step explanation:

4x-1/2 = x+7

4x-x = 7+0.5

3x = 7.5

x = 2.5

8 0

1 year ago

Read 2 more answers

It is 70cm long and has a circumference of 40cm what is the radius

Aleksandr [31]

The legnth is irrelivant

we know that
Circumference=2 times pi time radius

c=40
40=2 times pi times radius
divide both sides by 2
20=pi times radius
divide both sides b pi
20/pi=radius

the radius is 20/pi cm or aproximately 6.366199048 cm

4 0

2 years ago

A triangle with angles of 74° and 16° is?

xxMikexx [17]

The answer is A trust me I did it before

4 0

2 years ago