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Rainbow [258]
2 years ago
8

12. Find the values of x, y, and z. (1 point)

Mathematics
1 answer:
Anuta_ua [19.1K]2 years ago
3 0

Answer:

b. x = 80, y = 100, z = 63

Step-by-step explanation:

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Find the measure of angle x in the figure below: A.) 65° B.) 70° C.) 110° D.) 125°
Grace [21]

Answer: 70ᴼ

Step-by-step explanation:

The triangles are vertical so their angle measures are congruent.

The angles of a triangle add to equal 180ᴼ.

55 + 55 = 110

180 - 110 = 70

7 0
2 years ago
Find angle B if triangle ABC below is isosceles.
crimeas [40]

2x-20 = x+8

x-20 =8

x = 28

28+8 =36

 angle B = 36 degrees

answer is b

5 0
3 years ago
Factor the expression. 9b2 – 25
rewona [7]

Answer: (3b + 5)(3b - 5)

Because both terms, 9b² and 25, are perfect squares, you can factor by taking the square roots of both terms.

The square root of 9b² is 3b (3b × 3b = 9b²).

The square root of 25 is 5 (5 × 5 = 25).

9b² - 25 has a negative, so the factored expression would be

(3b + 5)(3b - 5). The signs (+ and -) alternate in this case because the  expression, 9b² - 25, has no middle term.

You can check your work by using FOIL. See the attachment below.

F irst

O utside

I nside

L ast

5 0
2 years ago
Read 2 more answers
Can you help me please? ​
Anarel [89]

Answer:

C(x)=25x+6000

b=2250

Step-by-step explanation:

C(x)=mx+b

m-marginal cost

x-no items

finding B

C(x)mx+b

6000=25(130)+b

b=2250

General substitution

C(x)=25x+6000

8 0
2 years ago
100 POINTS PLEASE HELP ASAP!!!! BTW I'm adding an attachment so dont answer until u see the question :)
nordsb [41]

\bf \cfrac{2}{5}\cdot \cfrac{3}{8}\implies \cfrac{\stackrel{1}{~~\begin{matrix} 2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{5}\cdot \cfrac{3}{\underset{4}{~~\begin{matrix} 8 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\implies \cfrac{3}{20}

4 0
2 years ago
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