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
lord [1]
3 years ago
13

Please help i'm literally terrible at this !

Mathematics
2 answers:
Dvinal [7]3 years ago
8 0

AB have a 90° angle with BC, so the angles ABD + CBD = 90

(7x - 9)° + 4x° = 90°

7x + 4x = 90 + 9

11x = 99

x = 99/11

x = 9

So the angles are:

7x - 9 -> 7.9 - 9 = 54°

4.9 = 36°

Margarita [4]3 years ago
6 0

Answer:

m<CBD equals 54

Step-by-step explanation:

Since that is a right angle do (7x-9)+(4x)=90

=11x-9=90

=11x=99

x=9

CBD=7x-9

7(9)-9=54

Hope this helps

You might be interested in
Which figure shows a reflection of ​pre-image QRS​ over the line t?
il63 [147K]

Answer:

Which point would map onto itself after a reflection across the line y = -x? ... What is the pre-image of vertex A' if the image shown on the graph was created by a reflection across the ... A triangle has vertices at R(1, 1), S(-2, -4), and T(-3, -3). ... Which shows the image of quadrilateral ABCD after the transformation R0, 90°? a.

Step-by-step explanation:

7 0
2 years ago
In the diagram below, PQ is parallel to MN . If MP=25, PQ=18, and MN=33, find the length of PO . Figures are not necessarily dra
Ray Of Light [21]

Given that triangles MON and POQ are similar triangles, the length of PO is 30 units.

<h3>What are Similar Triangles?</h3>

The triangles that are similar to each other will have their corresponding sides proportional to each other.

Given:

MP = 25

PQ = 18

MN = 33

Triangles MON and POQ are similar triangles.

Let PO = x

Therefore:

MN/PQ = MO/PO

Substitute

33/18 = (25 + x)/x

Cross multiply

33x = 18(25 + x)

33x = 450 + 18x

33x - 18x = 450

15x = 450

x = 30

Therefore, given that triangles MON and POQ are similar triangles, the length of PO is 30 units.

Learn more about similar triangles on:

brainly.com/question/21874653

8 0
2 years ago
According to a National Health Survey, American men’s heights are normally distributed with a mean given by μ=69.7 inches and a
Novay_Z [31]

Answer: 0.206

Step-by-step explanation:

Given that :

Height of American men is normally distributed :

Mean height (μ) = 69.7 inch

Standard deviation (σ) = 2.8 inch

Probability that height of a randomly selected man is more than 72 inches

P(X > 72)

Obtain the standardized score (Zscore):

Zscore = (x - μ) / σ

Zscore = (72 - 69.7) / 2.8

Zscore = 2.3 / 2.8

Zscore = 0.8214285

Zscore = 0.8214

Using the Z probability calculator ;

P(Z > 0.8214) = 0.20571

Probability of selecting a man whose height is more Than 72 is 0.206

6 0
3 years ago
Why is 6/5 not equivalent to 3/2?!?!?!​
DIA [1.3K]

Answer: Both numbers 6/5 and 3/2 do not have a common denominator. Just as how 2 cannot go into 5 evenly.

7 0
3 years ago
Read 2 more answers
Suppose a shipment of 140 electronic components contains 3 defective components. to determine whether the shipment should be​ ac
MA_775_DIABLO [31]
The chance that one of the defective components is \frac{3}{140} or 2.14285714% that the qc person will test a defective unit.
4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the total cost on a $225,000 mortgage at 3% interest for 15 years?
    8·1 answer
  • Solve the triangle. a = 10, b = 23, C = 95° (2 points) c ≈ 25.1, A ≈ 26.8°, B ≈ 58.2° c ≈ 25.1, A ≈ 22.8°, B ≈ 62.2° c ≈ 25.9, A
    9·1 answer
  • What is a equation in slope intercept form for the line that has a slope -1 that passes through (-4,3)
    7·2 answers
  • The system of equations graphed below has how many solutions? y= 2x+2, y=2x
    12·2 answers
  • Are these expressions equivalent 2w + 1t and 2w+ t
    7·1 answer
  • Marcy played the piano for 45 minutes. She stopped playing at 4:15 p.m. At what time did she start playing the piano?
    5·2 answers
  • An airplane ascended into the sky to a steady altitude of 35000 feet. The same plane descended to a steady altitude of 32000 fee
    11·1 answer
  • In order to select new board members, the French club held an election. 30% of the 20 members of the club voted. How many member
    15·1 answer
  • What is the area of the triangle?
    15·1 answer
  • Find the<br> -2<br> -4<br> -3<br> -1<br> -9-8<br> determinant OF<br> -15<br> - 5<br> 6
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!