All categories

3 years ago

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

Mathematics

1 answer:

katrin2010 [14]3 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

ryan rides his bicycle 5 miles in 3/4 hour. how many miles can he ride at the same rate in 1 hour? (in fractions)

stepladder [879]

Answer:

20/3

Step-by-step explanation:

If Ryan rides his bike 5 miles in 3/4 of an hour, then he rides 5/3 miles in 1/4 of a hour (divide both by 3). To get to a full hour from 1/4, you need to multiply it by 4. You must do the same for 5/3. 5/3*4 is equal to 20/3.

6 0

3 years ago

16 is 4% of what number?

IrinaK [193]

16 is 4% of 400

Change the percentage into a decimal by dividing the decimal over 100:
$\frac{4}{100} = 0.04$

Divide 16 by the decimal (0.04):
$16 \div 0.04 = 400$

3 0

3 years ago

3. A rectangular floor of dimensions

ICE Princess25 [194]

Answer:

area of the floor = 540*840.

=453600 cm sq.

area of the marbal piece = 1/2 * 40* 30 = 600 cm sq.

now,

no. of marble piece reqd. = 453600 / 600 = 756 marbal piece.

hope it helps u.

4 0

3 years ago

Read 2 more answers

Approximately 85% of electronic stores marked up the price for a new headset. Suppose a random sample of 12 stores is selected.

Leviafan [203]

Answer:djdjdjxbc. D

Step-by-step explanation:

8 0

2 years ago

Which expression is equivalent to the area of square A, in square centimeters?

oksano4ka [1.4K]

You can use the Pythagorean theorem for this question, because all three of the squares form a right triangle together.

A=24²+45²

The answer is the bottom choice.

5 0

3 years ago

Read 2 more answers