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
MA_775_DIABLO [31]
2 years ago
15

Need help asap!! analyze the diagram below and answer the question that follows.

Mathematics
1 answer:
katrin2010 [14]2 years ago
5 0

Answer:

D) cos^-1 (f/e)

Step-by-step explanation:

Since you only know two sides, DE = f, and DF = e, you need to use cosine to find the measure of ∠D.

Let x represent m∠D

cos x = f/e

To find x, take the inverse of cos, so:

cos^-1 (f/e) = x

You might be interested in
Which of the following expressions represents “the quotient of nine times a number and seven ?
blsea [12.9K]

Answer:

9n÷7

Step-by-step explanation:

A quotient means a ratio or one quantity being divided by another, or in algebraic terms (a/b). In this case, the first quantity is "nine times a number" represented in terms of n as (n). The other quantity is just the number 7.

Dividing the 9 times n by 9 gives us the following:

9n÷7

<u><em>Hope this helps :></em></u>

7 0
3 years ago
Solve for x<br><img src="https://tex.z-dn.net/?f=4%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%207x%20%2B%202" id="TexFormula1" title="4 {x
Alina [70]

\bf 4x^2=7x+2\implies 4x^2-7x-2=0\implies (4x+1)(x-2)=0 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 4x\cdot x=\boxed{4x^2}~\hfill (1)(-2)=\boxed{-2}\hfill (4x\cdot -2)+(1\cdot x)=\boxed{-7x} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} 4x+1=0\implies 4x=-1\implies &x=-\cfrac{1}{4}\\[1em] x-2=0\implies &x=2 \end{cases}

7 0
2 years ago
What is (3.1 times 10 Superscript 5 Baseline) (2.2 times 10 Superscript 7 Baseline) in scientific notation? 5.5 times 10 Supersc
aev [14]

Answer:

(B) 6.82 times 10 Superscript 12

Step-by-step explanation:

I just took the quiz

8 0
3 years ago
Read 2 more answers
If the probability of a win is 0.2 and the probability of a draw is 0.64, what is the probability of a loss?
Veronika [31]
To find the probability of a loss add .2 and .64 together. You will get .84. The remaining .16 is the probability of a loss. The probability of a loss is .16.
5 0
2 years ago
Read 2 more answers
Why is it preferable to measure a penny in millimeters?
White raven [17]
When measuring a penny, using the millimeter measurement would be more accurate then using inches or centimeters.
5 0
3 years ago
Other questions:
  • Joseph typed a 1200- word essay in 25 minutes.at this rate,determine how many words he can type in 45 minutes.
    7·1 answer
  • Jacoby says that they
    11·1 answer
  • Christopher can paint the interior of his house in 15 hours. if he hires cynthia to help him they can do the same job together i
    12·1 answer
  • AH the second question
    11·1 answer
  • Mia borrowed some money from her friend in order to help buy a new video game system. Mia agreed to pay back her friend $8 per w
    15·1 answer
  • Explain how to use a pattern to find 35.6 ÷10 to the second power
    15·2 answers
  • Can somesone say whats the numberline of -4(-6)+1​
    5·1 answer
  • Given the following data set:
    14·1 answer
  • I’m so bad at this pls-
    10·2 answers
  • I need help with this plzz
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!