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
Travka [436]
3 years ago
10

∠C and ∠D are complementary.

Mathematics
2 answers:
djverab [1.8K]3 years ago
7 0

Answer:

  • x = 7

Step-by-step explanation:

Complementary angles are angles that add up to 90°.

We have C and D as complementary.

Their sum is:

  • m∠C + m∠D = 90

Substitute values and solve for x:

  • 8x + 5x - 1 = 90
  • 13x = 90 + 1
  • 13x = 91
  • x = 91/13
  • x = 7
Harman [31]3 years ago
5 0

Answer:

x = 7

Step-by-step explanation:

<u>Complementary angles</u> are two angles that sum up to 90°. In this case, we are given that ∠C and ∠D are <u>complementary.</u> This means that the sum of ∠C and ∠D is equivalent to 90°.

⇒ ∠C + ∠D = 90°

⇒ 8x + 5x - 1 = 90°                                                          [∠C = 8x; ∠D = 5x - 1]

⇒ 13x - 1 = 90°

⇒ 13x = 90 + 1

⇒ 13x = 91

⇒ 13x/13 = 91/13

⇒ x = 91/13 = 7

You might be interested in
In the expantion of <img src="https://tex.z-dn.net/?f=%28x%20%2B%20%5Cfrac%7B1%7D%7Bx%7D%20%29" id="TexFormula1" title="(x + \fr
GarryVolchara [31]

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

6 0
3 years ago
Read 2 more answers
Solve the equation for the indicated variable 4=t-7s , for t
solong [7]

Answer:

t = 7s + 4

Step-by-step explanation:

The goal is to get t alone. So we should move 7s to the other side of the equals to sign. When we move 7s to the other side of the equals to sign the sign changes to -7s. There are no like terms to be collected so the answer should be 7s + 4 for t.

7 0
3 years ago
Read 2 more answers
Please help ill mark brainliest
tia_tia [17]

Answer:

x=4 y=1

Step-by-step explanation:

given equation

x+y=5

so x= 5-y.......(i)

and

x-2y=2

so x= 2+2y........(ii)

then

5-y=2+2y

therefore y=1

and x=4

5 0
3 years ago
Read 2 more answers
PLEASE HELP, I WILL UP POINTS AND VOTE BRAINLIEST! DONT MAKE ME WASTE MY 88 POINTS.
Allushta [10]

Answer:

Ok im  using a standered form calculator:

1. 9/7x + 1/7 = -8

2. y = -6/5x - 3 =  -11

3. y = 1/3x - 2 = -10

Step-by-step explanation:

I will be glad to help more

6 0
3 years ago
Given f(x) = 7x - 4 and g(x) = -3x + 2, find (f+g)(x)​
zalisa [80]

Answer:

<h2>(f+g)(x) = 4x - 2</h2>

Step-by-step explanation:

f(x) = 7x - 4

g(x) = -3x + 2

To find (f+g)(x) add g(x) to f(x)

That's

<h3>(f+g)(x) = 7x - 4 +  (- 3x + 2) \\  = 7x - 4 - 3x + 2 \\  = 7x - 3x -  4 + 2</h3>

We have the final answer as

<h3>(f+g)(x) = 4x - 2</h3>

Hope this helps you

5 0
3 years ago
Read 2 more answers
Other questions:
  • X + 6<br> 2<br> − <br> x − 8<br> 7<br> = 2
    13·1 answer
  • A book agent charges 15% to represent an author. If the agent earns $4.5 thousand from a book deal, how much does the author ear
    13·1 answer
  • jennifer walks 8 miles in the same time she can jog 13 miles. if her jogging speed is 8mph faster than her walking speed, how fa
    7·1 answer
  • The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 7 dollars. If a sample of 51 bags of shri
    13·1 answer
  • I just need help on Wednesday
    12·1 answer
  • Hey can you please help me posted picture of question :)
    5·2 answers
  • I need help finding the answer to this question on edge.
    8·1 answer
  • Find the exterior angle
    5·1 answer
  • HELP FOR THE LOVE OF JESUS HELP ME IF YOU LOVE JESUS OR ANY GOD YOU BELIEVE PLEASE HELP
    6·2 answers
  • Just need help with this one
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!