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
Xelga [282]
4 years ago
12

If ∠C and ∠D are complementary angles, m∠C = (4x + 3)°, and m∠D = (15x – 8)°, find m∠D

Mathematics
2 answers:
Snezhnost [94]4 years ago
8 0

Answer:

52

Step-by-step explanation:

complementary angles meaning sum of both angles is 90

so equations is

(4x + 3) + (15x – 8) = 90

x=5

insert x into angle d equation

d=15(5)-8

d=60-8

d=52

Mariulka [41]4 years ago
6 0

Answer:

<D = 67 degrees

Step-by-step explanation:

You might be interested in
What is 1.04 to the 1/12 power
LiRa [457]
1.04 ^ 1/12 = 0.086666666
or
1.04 ^ 1/12 = 13/150
8 0
3 years ago
Which is greater?<br> 3<br> _<br> 8<br><br> Or <br><br> 5<br> _<br> 6
grin007 [14]

Answer:

5/6 is greater than 3/8 Hope it helped

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The quarterly returns for a group of 51 mutual funds are well modeled by a Normal model with a mean of 7.4​% and a standard devi
Wittaler [7]

Answer:

A) x ≥ 0.074; B) x ≥ 0.108; C) x ≤ 0.006; D) 0.04 ≤ x ≤ 0.108

Step-by-step explanation:

68% of data will fall within 1 standard deviation of the mean; 95% of data will fall within 2 standard deviations of the mean; and 99.7% of data will fall within 3 standard deviations of the mean.

Breaking this down, we find that 34% of data fall from the mean to 1 standard deviation above the mean; 13.5% of data fall from 1 standard deviation above the mean to 2 standard deviations above the mean; 2.35% of data fall from 2 standard deviations above the mean to 3 standard deviations above the mean; and 0.15% of data fall above 3 standard deviations above the mean.

The same percentages apply to the standard deviations below the mean.

The highest 50% of data will fall from the mean to the end of the right tail.  This means the inequality for the highest 50% will be x ≥ 0.074, the mean.

The highest 16% of data will fall from 1 standard deviation above the mean to the end of the right tail.  This means the inequality for the highest 16% will be x ≥ 0.074+0.034, or x ≥ 0.108.

The lowest 2.5% of data will fall from 2 standard deviations below the mean to the end of the left tail.  This means the inequality for the lowest 2.5% will be x ≤ 0.074-0.034-0.034, or x ≤ 0.066.

The middle 68% will fall from 1 standard deviation below the mean to 1 standard deviation above the mean; this means the inequality for the middle 68% will be

0.074-0.034 ≤ x ≤ 0.074+0.034, or

0.04 ≤ x ≤ 0.108

8 0
4 years ago
How do you devide -648:9206​
ladessa [460]

Answer:

-0.17901368672

Step-by-step explanation:

6 0
4 years ago
Josh plays a game where he flips a coin and rolls a number cube. List all of the possible outcomes below.
Bad White [126]
Heads 1
Tails 1
Heads 2
Tails 2
Heads 3
Tails 3
Heads 4
Tails 4
Heads 5
Tails 5
Heads 6
Tails 6
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement about the locations of the rational numbers on the number line
    13·1 answer
  • Help ASAP!!!
    5·2 answers
  • 7(x+4)−6(x+3)=x+5 what is x
    13·2 answers
  • Find the area of the composite figure below
    13·1 answer
  • Hi I'm really in 5y
    9·1 answer
  • Shawna already has 7 flowers in her garden, and she can also grow 1 flower with every seed packet she uses. How many seed packet
    8·1 answer
  • FREE BRAINLIEST FOR THE RIGHT ANSWERS
    15·1 answer
  • The admission fee at a water park is $9 for children and $15 for adults. On a certain day, 220
    10·1 answer
  • Andre is designing a website that will display reviews of school lunches. Each item on the menu is rated from 0 to 5 stars. The
    15·1 answer
  • An archaeologist in turkey discovers a spear head that contains 32% of its original amount of c-14
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!