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
n200080 [17]
3 years ago
6

∠A and \angle B∠B are complementary angles. If m\angle A=(x-21)^{\circ}∠A=(x−21) ∘ and m\angle B=(2x-15)^{\circ}∠B=(2x−15) ∘ , t

hen find the measure of \angle A∠A.
Mathematics
1 answer:
sasho [114]3 years ago
5 0

Answer:

A = 21 degrees

Step-by-step explanation:

Here in this question, we are told to calculate the value of angle A.

When two angles are tagged complementary, what this means is that the addition of both angles gives a total of 90 degrees.

Hence;

A + B = 90

This means that;

(x-21) + (2x -15) = 90

x + 2x -21-15 = 90

3x -36 = 90

3x = 90+ 36

3x = 126

x = 126/3

x = 42

But we are told to calculate the measure of A

A = x -21

A = 42-21

A = 21 degrees

You might be interested in
If two numbers round to the same number, does that mean the numbers are equal?
Eduardwww [97]
If two numbers round to the same number it doesnt always mean they are equal, for example: 11 and 9 both round to ten but they are not the same number
3 0
3 years ago
Read 2 more answers
Help Please really do need help
Ksju [112]

Answer:

your answer would be a whole number, so your answer would be 1,000 i think.

this should be the answer because if you multiply

9*1000 you get  9000

if you multiply

25 * 1000 you get 25000

so on and so on

Step-by-step explanation:

hope this helps :)

5 0
2 years ago
If h(x) = 7 + 6f(x) , "where f(5) = 7 and f '(5) = 3", find h'(5).
Otrada [13]
Does arms WNYC settled Adidas acid sky
4 0
2 years ago
PLEASE HELP
zaharov [31]

Answer: $85.38

Step-by-step explanation:

67.95 - 60% + 7% = $67.42

18.49 - 60% + 7% = 17.96

67.42 + 17.96 = $85.38

5 0
3 years ago
Tara read 80 pages of a book in 3 hours. At this rate, how
Kitty [74]

Answer: it would take her 15 hours to read 400 pages

Step-by-step explanation: 400 devided by 80 is 5 and 5 x 3 = 15 hours

5 0
3 years ago
Read 2 more answers
Other questions:
  • Tyler earned $74 at his job when he worked for 6 hours. What was his hourly pay rate in hours per dollar. HOURS PER DOLLAR NOT D
    14·1 answer
  • Choose Yes or No to tell if each equation is true. 2,000 km = 2 m 2,000 mm = 2 m 20 cm = 200 mm 20 m = 2,000 cm
    11·1 answer
  • O is the center of the given circle. The measure of angle O is 128°. The diagram is not drawn to scale.
    10·2 answers
  • Use square roots to solve the<br>equation x2 = -121 over the<br>complex numbers.​
    10·1 answer
  • A Ferris wheel completes 4 revolutions in 10 minutes. The radius of the Ferris wheel is 40 feet.
    14·1 answer
  • The temperature was -3 C last night. It is now -4 C. What was the change in temperature
    15·1 answer
  • Solve for the variable in 6⁄18 = x⁄36 A. 12 B. 6 C. 3 D. 9
    10·1 answer
  • Julia bought name tags for a party. Each name tag is 334 in. wide and 213 in. high.
    7·2 answers
  • Ramya’s mom was hired for a new job with a yearly income of $84,000. The total of all deductions from her paycheck will be 25% o
    10·2 answers
  • If a scale dilates a two-dimensional object by a factor of 2/3  it means that …
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!