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
kherson [118]
3 years ago
13

*****PLEASE HELP*****

Mathematics
1 answer:
Anna007 [38]3 years ago
7 0

Answer:

D

Step-by-step explanation:

The triangle is an isosceles triangle (2 sides same).

The sides BC and AC are radius of the circles, so these 2 sides are congruent. So, the opposite angles are equal as well. Since one angle is given as 20, the other angle is also 20.

So, we have the three angles of the triangle as:

20, x, and 20

We know, sum of 3 angles of a triangle is 180, thus we can write:

20 + x + 20 = 180

Now, we solve for x:

20 + x + 20 = 180

40 + x = 180

x = 180 - 40

x = 140

Correct answer is D

You might be interested in
What is the volume of this square pyramid? Enter your answer in the box.
musickatia [10]
Answer:400. 10^2 x 12/3 = 400.
6 0
3 years ago
Read 2 more answers
The triangle shown below has an area of 181818 units^2 2 squared. khan academy
const2013 [10]

Answer:

4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the popu
vitfil [10]

Answer:

a) The minimum head breadth that will fit the clientele = 4.105 inches to 3d.p = 4.1 inches to 1 d.p

b) The maximum head breadth that will fit the clientele = 8.905 inches to 3 d.p = 8.9 inches to 1 d.p

Step-by-step explanation:

This is normal distribution problem.

A normal distribution has all the data points symmetrically distributed around the mean in a bell shape.

For this question, mean = xbar = 6.1 inches

Standard deviation = σ = 1 inch

And we want to find the lowermost 2.3% and uppermost 2.3% of the data distribution.

The minimum head breadth that will fit the clientele has a z-score with probability of 2.3% = 0.023

Let that z-score be z'

That is, P(z ≤ z') = 0.023

Using the table to obtain the value of z'

z' = - 1.995

P(z ≤ - 1.995) = 0.023

But z-score is for any value, x, is that value minus the mean then divided by the standard deviation.

z' = (x - xbar)/σ

- 1.995 = (x - 6.1)/1

x = -1.995 + 6.1 = 4.105 inches

The maximum head breadth that will fit the clientele has a z-score with probability of 2.3% also = 0.023

Let that z-score be z''

That is, P(z ≥ z'') = 0.023

Using the table to obtain the value of z''

P(z ≥ z") = P(z ≤ -z")

- z'' = - 1.995

z" = 1.995

P(z ≥ 1.995) = 0.023

But z-score is for any value, x, is that value minus the mean then divided by the standard deviation.

z'' = (x - xbar)/σ

1.995 = (x - 6.1)/1

x = 1.995 + 6.1 = 8.905 inches

6 0
3 years ago
A driveway is in the shape of a rectangle 20 feet wide by 25 feet long.
ANTONII [103]
A= 20x25 so the area is 500
To find the perimeter you have to add both the width and length x2 so it’s 20+25 =45
45x2=90
7 0
2 years ago
F (x) = x²-4x-5 tentukan daerah asal dan daerah hasil fungsi
olganol [36]
I don't understand what is writing but I think the answer could be (x+1)(x-5)
7 0
3 years ago
Other questions:
  • HELP ME PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEE
    15·1 answer
  • Attached a phot please help!
    7·1 answer
  • What is the mad of 5,7.50,8.25,8,9.75,10.25,11,10.75<br><br> A 13<br> B 8.81<br> C 6<br> D 1.63
    7·2 answers
  • Problem Page
    10·1 answer
  • I'm stuck on this question. Which is a graph for the inequality x &gt; 2?
    6·1 answer
  • A 10​-ft vertical post casts a 16​-in shadow at the same time a nearby cell phone tower casts a 120​-ft shadow. How tall is the
    8·1 answer
  • Tina’s rectangular living-room floor measures 15 feet by 18 feet. a. How many square feet of carpet will Tina need to cover the
    6·2 answers
  • WILL MARK BRAINLIEST!<br><br> Find EC/AC <br><br> Do #15
    9·1 answer
  • PLEASE ANY REAL PERSON WHO CAN HELP ME IVE BEEN WAITING LIKE 30 MINUTES
    13·1 answer
  • Which of the following scenarios is the best fit for the graph?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!