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3 years ago

10

Find measure dbc 19 22 23 161 HELP !!!

1 answer:

iren2701 [21]3 years ago

4 0

Angles ABD and DBC are supplementary. They are also a linear pair because they share a ray. Supplementary angles add up to equal 180, as do linear pairs. Therefore, from our picture, 7x + x - 4 = 180. 8x = 184. Therefore, x = 157. 157-4 = ∠DBC, so ∠DBC = 153.

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9. A 16-ft ladder is leaning against the side of a house. The ladder touches the ground 9 ft away from the house. What angle doe

Mandarinka [93]

Answer:

Check pdf

Step-by-step explanation:

8 0

3 years ago

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Rewrite the function by completing the square f(x)=x^2-4x-26

leonid [27]

Answer:

(x - 2)² - 30

Step-by-step explanation:

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 4x

f(x) = x² + 2(- 2)x + 4 - 4 - 26 = (x - 2)² - 30

8 0

3 years ago

Please help, and get explanation but please make sure your correct tysm!

Darya [45]

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4 0

3 years ago

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If you add 21 to my number and then multiply the result by 3, you will get 84 more than two-thirds of my number. Find my number.

Ksivusya [100]

Based on the calculations, the unknown number is equal to $\frac{-45}{7}$

Let the unknown number be x.

<h3>How to find an unknown number:</h3>

Translate the word problem into an algebraic expression, we have;

Adding 21 to the unknown number:

$21 +x$

Multiplying the result by 3:

$3\times (21+x)$

84 more than two-thirds of the unknown number:

$\frac{2x}{3} +84$

Equating the equations, we have:

$3\times (21+x) = \frac{2x}{3} +84\\\\43+3x=\frac{2x}{3} +84$

Cross-multiplying, we have:

$43+3x=\frac{2x}{3} +84\\\\129+9x=2x+84\\\\9x-2x=84-129\\\\7x=-45\\\\x=\frac{-45}{7}$

Read more on word problems here: brainly.com/question/13170908

5 0

2 years ago

28 is 12 less than k as an equation. what is the value of k

mojhsa [17]

28 = k - 12
28 + 12 = k
40 = k

6 0

3 years ago

Read 2 more answers