3 years ago

What's the measure of the angle indicated with a "?"

Mathematics

1 answer:

marysya [2.9K]3 years ago

3 0

Answer: 108 degrees

Step-by-step explanation:

180 - 72 = 108

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Someone help 50 points + brainlist+ like +thank you line segment measurement

Vika [28.1K]

$\\ \bull\leadsto CD=DE$

$\\ \bull\leadsto 3x-6=2(x+1)$

$\\ \bull\leadsto 3x-6=2x+2$

$\\ \bull\leadsto 3x-2x=2+6$

$\\ \bull\leadsto x=8$

Now

CD=3(8)-6=24-6=18

5 0

3 years ago

Write f(x) in a non-factored way from polynomial equation f(x)=(x+2)(-x+3)(x-2)?

Lelu [443]

Answer:

f(x) = -x³ + 3x² + 4x - 12

Step-by-step explanation:

f(x)=(x+2)(-x+3)(x-2)

Step 1. Use the difference of two squares

(x + 2)(x - 2) = x² - 4

f(x) = (-x + 3)(x² - 4)

Step 2. Long multiplication

x² - 4

-x + 3

-x³ + 4x

+ 3x² - 12

-x³ + 3x² + 4x - 12

f(x) = -x³ + 3x² + 4x - 12

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4 years ago

4 people can dig a hole in 3 hours. How long does it take 9 people.

ad-work [718]

Answer: 1 hour 20 minutes

Step-by-step explanation:

Let's figure out how long it would take 1 person to dig the hole and then divide that number by 9 (since they are sharing the workload).

$\dfrac{1}{4}x=3\qquad \implies \qquad x = 12\quad \text{It takes 12 hours for 1 person}\\\\\\\dfrac{12\ \text{(for 1 person)}}{9\ \text{(people)}}\quad =1\dfrac{1}{3}\quad =\large\boxed{1\ hour\ 20\ minutes}$

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3 years ago

Read 2 more answers

Question 1 : Match the Term with the correct Definition

Alex_Xolod [135]

Answer:

Great Circle - A

Sphere - B

Ellipse - C

Circle - D

Triangle - E

A triangle

7 0

3 years ago

1 ½ x 4 2/9 = 2 ⅘ x ⅕ = 4 3/7 x ⅚ = 6/6 x 1 ¼ = 1 ¼

irina [24]

For the first 6 1/3
second is 14/25
third 2 29/42

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3 years ago