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
Vinil7 [7]
3 years ago
14

I NEED HELP ASAP!!!!!!! Look at the photo for question

Mathematics
2 answers:
zaharov [31]3 years ago
8 0

Answer:

x =25

<B = 65 degrees

<C = 50 degrees

Step-by-step explanation:

65 + (3x-10) +2x = 180

Add like terms:

55 +5x = 180

Subtract 55:

5x = 125

Divide by 5:

x = 25

Substitute for x and solve

zimovet [89]3 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
When answered please show step by step
Allushta [10]
How am I supposed to answer that if I can't get the graph to you?
3 0
3 years ago
The figure shows the front side of a purse in the shape of a trapezoid.
attashe74 [19]
For this case, what you must do is take out the area of two triangles and add it to the area of a rectangle to find the total area.
 We have then:
 Triangle area:
 A = (1/2) * ((13-9) / (2)) * (10) = 10 in ^ 2
 Rectangle area:
 A = (9) * (10) = 90 in ^ 2
 Total area:
 At = 2 * (10) + 90 = 110 in ^ 2
 answer:
 110 in²
8 0
3 years ago
Read 2 more answers
M(-5,9) and N(-2,7)<br> P(-3,-7) and Q(3,-5
jek_recluse [69]

Answer:

M=(4,112)=(4,5.5) A

Step-by-step explanation:

The midpoint for two points P=(px,py) and Q=(qx,qy) is M=(px+qx2,py+qy2).

We have that px=3, py=2, qx=5, qy=9.

Thus, M=(3+52,2+92)=(4,112).

7 0
2 years ago
A car dealership sells 0, 1, or 2 luxury cars on any day. When selling a car, the dealer also tries to persuade the customer to
melisa1 [442]

Answer:

Mean = 1.42

Variance = 0.58

Step-by-step explanation:

Given: X denote the number of luxury cars sold in a given day, and Y denote the number of extended warranties sold.

Also, joint probability function of X and Y are given.

To find:

mean and variance of X

Solution:

From the given joint probability function of X and Y,

P(X=0)=\frac{1}{6}\\P(X=1)=\frac{1}{12}+\frac{1}{6}=\frac{1+2}{12}=\frac{3}{12}\\P(X=2)=\frac{1}{12}+\frac{1}{3}+\frac{1}{6}=\frac{1+4+2}{12}=\frac{7}{12}

Mean of X:

E(X)=\sum XP(X)\\=0\left ( \frac{1}{6} \right )+1\left ( \frac{3}{12} \right )+2\left ( \frac{7}{12} \right )\\=0+\frac{3}{12}+\frac{14}{12}\\=\frac{17}{12}=1.42

Variance of X:

E(X^2)=\sum X^2P(X)\\=0^2\left ( \frac{1}{6} \right )+1^2\left ( \frac{3}{12} \right )+2^2\left ( \frac{7}{12} \right )\\=0+\frac{3}{12}+\frac{28}{12}\\=\frac{31}{12}

var(X)=E\left [ X^2 \right ]-\left ( E\left [ X \right ] \right )^2\\=\frac{31}{12}-\left ( \frac{17}{12} \right )^2\\=\frac{31}{12}-\frac{289}{144}\\=\frac{372-289}{144}\\=\frac{83}{144}\\=0.58

5 0
3 years ago
Hello! Please help. <br> "Find the error &amp; explain why it is wrong."
mixas84 [53]

Answer: Step E

Step-by-step explanation:

The error is in the last step. In Step D, we see that we're supposed to subtract the second part from the first part. We also see we have the terms 2x-8 in the numerator on the right. Since we're subtracting, the expression should actually be -2x +8. 3 -2x +8 should be -2x +11 which is not the numerator in Step E so the last step is wrong.

5 0
3 years ago
Other questions:
  • A rectangle is 4 times as long as it is wide. If the length is increased by 4 inches and the width is decreased by 1 inch, the a
    13·2 answers
  • The sum of two numbers is 66 . the larger number is 8 more than the smaller number. what are the numbers?
    5·1 answer
  • In the past, 19% of all homes with a stay-at-home parent had the father as the stay-at-home parent. An independent research firm
    10·1 answer
  • 3x + 2y = 6 is an equation in standard form.
    7·2 answers
  • Simplify the expression below. (–7x + 4) – (2x – 8)
    14·1 answer
  • Classify each number as rational or irrational.
    11·1 answer
  • 15. A rectangle has a length of 2x - 1 and a width of 3x + 7. Find the perimeter of this rectangle.
    13·1 answer
  • Is borrowing money a <br><br> Delegated power <br> Reserved power <br> Concurrent power
    5·1 answer
  • Can someone please help me
    14·1 answer
  • Match the graph with the related table
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!