1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
elena-s [515]
2 years ago
10

Solve for x and then find the measure of ZB

Mathematics
1 answer:
VARVARA [1.3K]2 years ago
8 0

Answer:

Step-by-step explanation:

angle A = angle B (because they are alternate exterior angles)

8x+6=4x+38

8x-4x=38-6

4x=32

x=32/4

x=8

For angle A

8x+6

8*8+6

64+6

70

For angle B

4x+38

4*8+38

32+38

70

You might be interested in
Which strategy best explains how to solve this problem?
Rufina [12.5K]
This is a geometric sequence because each term is twice the value of the previous term.  So this is what would be called the common ratio, which in this case is 2.  Any geometric sequence can be expressed as:

a(n)=ar^(n-1), a(n)=nth value, a=initial value, r=common ratio, n=term number

In this case we have r=2 and a=1 so

a(n)=2^(n-1)  so on the sixth week he will run:

a(6)=2^5=32

He will run 32 blocks by the end of the sixth week.

Now if you wanted to know the total amount he runs in the six weeks, you need the sum of the terms and the sum of a geometric sequence is:

s(n)=a(1-r^n)/(1-r)  where the variables have the same values so

s(n)=(1-2^n)/(1-2)

s(n)=2^n-1 so 

s(6)=2^6-1

s(6)=64-1

s(6)=63 blocks

So he would run a total of 63 blocks in the six weeks.
4 0
3 years ago
Read 2 more answers
What is the difference written in scientific notation? 0.00067 - 2.3 x 10^5
shepuryov [24]
0.00067=67X10^5 so

67X10^5-2.3X10^5

64.7X10^5 which can be expressed as:

6.47X10^6

(not sure if it matters to you or not, but technically we only had two significant figures so it should be rounded to 6.5X10^6)


5 0
3 years ago
What is the y-value of sin(x) when x= -180°?
Andreyy89

In trigonometry, we start from the point (1,0), so this is the 0-degree point. Then, we start rotating counter clockwise along the unit circle.

Note that rotating 180 or -180 degrees is actually the same, because you travel half the circumference clockwise or counter clockwise. In both cases, you start from the rightmost point of the circle, (1,0), and arrive at the leftmost point, (-1,0).

Now, for every point (x,y) on the unit circle, given by a certain angle \alpha, we have

\cos(\alpha)=x,\quad \sin(\alpha)=y

So, in this case, the angle of -180 is associated with the point (-1,0), and thus we have

\sin(-180)=0

8 0
3 years ago
What is <br> Y=(2x²+1)(x-3)
spin [16.1K]

Answer:

x intercept (3,0)

y intercept (0,-3)

Step-by-step explanation:

4 0
2 years ago
Take away 8 from 5 times m
ch4aika [34]

Answer:

5m-8

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • At its farthest,Pluto is 4583 million miles from sun. Write this number using standard notation and explain your answer
    8·2 answers
  • Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280lb mixt
    14·1 answer
  • Peter shot 40 free throws. He made 80% of his shots. Which fraction is equivalent to
    10·1 answer
  • -35+7k = -7+7(k-4) <br>is it IMS (Infinite solutions)<br>one solution<br>no solution?​
    5·2 answers
  • (The choices for the first one is 90 or 180)
    15·2 answers
  • 1. Ashton rode his bicycle 3.25 miles in 12 minutes. What was Ashton's average rate in miles per hour
    14·1 answer
  • 3 expressions equivalent to 2x + 4x –15
    12·2 answers
  • If m&lt;BDC = 20, m arc AB = 140, and marc CD = 120, find m&lt;1.<br><br>​
    9·2 answers
  • The perimeter of a rectangle is 86cm.
    8·1 answer
  • IM2: 4.2.3, 4-86 d<br><br> Solve for X
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!