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
Contact [7]
3 years ago
9

Find the measures of two complementary angles, ANGLE A AND B, IF m Ð A= 7X+4 and Ð B=4X+9.

Mathematics
1 answer:
skad [1K]3 years ago
5 0

Answer:

x  = 7

angle A = 7(7) + 4 = 49 + 4 = 53°

angle B = 4(7) + 9 = 28 + 9 = 37°

Step-by-step explanation:

m ∠A  + m ∠B = 90°                    Complementary angles sum = 90°

7x + 4 + 4x + 9 = 90

11x + 13 = 90

11x = 77

x  = 7

angle A = 7(7) + 4 = 49 + 4 = 53°

angle B = 4(7) + 9 = 28 + 9 = 37°

Check = angle A + angle B =  90° checked

You might be interested in
What’s the median of 25,40,68,85,95,98,70,78,85,<br> 100<br> Plz hurry
vladimir1956 [14]

Answer:

81.5

Step-by-step explanation:

first arrange the numbers

25,40,68,70,78,85,85,95,98,100

N= 10

median= (n+1)/2

=11/2

=5.5

the average between 5th position and 6th

which is 78 and 85

=(78+85)/2

=81.5

6 0
3 years ago
Read 2 more answers
Make the subject of the formular<br> A=arh <br>C=2Ar<br>​
prohojiy [21]

Answer:

Step-by-step explanation:

I think this is it but you question want super clear

A = C/2r

3 0
3 years ago
When the sample evidence is sufficient to justify rejecting the null hypothesis in a goodness-of-fit test, can you tell exactly
Svetllana [295]

No, we can only suppose that the observed distribution deviates from the expected distribution when we reject the null hypothesis.

<h3>What is a null hypothesis?</h3>

The null hypothesis exists as a specific mathematical theory that claims that there exists no statistical relationship and significance between two sets of observed data and estimated phenomena for each set of selected, single observable variables. The null hypothesis can be estimated to define whether or not there exists a relationship between two measured phenomena, which creates it useful. It can let the user comprehend if the outcomes exist as the product of random events or intentional manipulation of a phenomenon.

To learn more about the null hypothesis refer to:

brainly.com/question/13135308

#SPJ4

4 0
2 years ago
Read 2 more answers
Write the fraction 37/100 as a decimal
olchik [2.2K]
You divide 37 and 100 which gives you .37
3 0
3 years ago
Read 2 more answers
Sonji correctly added 2p+1/p-8 and 3p-3/4p and got 8p^2+4p+3p-27p+24/(p-8)(4p). What is the simplified sum?
RUDIKE [14]

Answer:

The simplified sum is \frac{11p^{2}-23p+24}{(p-8)4p}

Step-by-step explanation:  

we have

\frac{2p+1}{p-8}+\frac{3p-3}{4p}=\frac{4p(2p+1)+(p-8)(3p-3)}{(p-8)4p}\\ \\=\frac{8p^{2}+4p+3p^{2}-3p-24p+24}{(p-8)4p}\\ \\ =\frac{11p^{2}-23p+24}{(p-8)4p}

4 0
3 years ago
Read 2 more answers
Other questions:
  • 6. (4.2.12) Of the items manufactured by a certain process, 20% are defective. Of the defective items, 60% can be repaired. a. F
    13·1 answer
  • What is the measure of the angle whose supplement is four times its complement?
    5·2 answers
  • A teacher promised a movie day to the class that did better, on average, on their test. The box plot shows the results of the te
    7·1 answer
  • 46 inches= how many feet. How do I solve
    6·2 answers
  • What is the range of prizes for a carton of eggs at the three stores $1.40, $1.50, $1.60
    12·2 answers
  • Help plz with Algebra question I attached a file
    15·1 answer
  • HURRY!<br> What are all the possible rational solutions for x^4-3x^2+2x5=0
    9·1 answer
  • Which of the following best defines an output? (4 points)
    14·2 answers
  • 5(x+3)=2x+3 what is x?
    15·2 answers
  • Select True or False for each statement.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!