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Law Incorporation [45]

3 years ago

9

Evaluate 4!. 4 12 24

2 answers:

Luda [366]3 years ago

6 0

The correct answer is 24

jenyasd209 [6]3 years ago

3 0

4! means the following:
$4!=4\times3\times2\times1=24$

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Find 4/7 divided by 7/8

Reika [66]

If you divide a fraction by another fraction, this is equivalent to mupltiplying by its inverse:

so $\frac{4}{7}$ divided by $\frac{7}{8}$

is equivalent to

$\frac{4}{7}$ multiplied by by $\frac{7}{8}$

which is

$\frac{4}{7}* \frac{7}{8}= \frac{4*7}{7*8}= \frac{4}{8}= \frac{1}{2}$

so the answer is $\frac{1}{2}$ which is also 0.5

8 0

3 years ago

Prove each of these identities.

Stella [2.4K]

Answer:

Identity (a) can be re-written as

$sec x\ cosec x - cot x = tan x$

which we already proven in another question, while for idenity (b)

$(A)\frac 1 {sin x} -sin x = cos x \frac{cos x}{sin x}\\\\(B)\frac {1-sin^2x}{sin x} = \frac {cos^2x} {sin x} \\\\(C) \frac {cos^2x}{sin x} =\frac {cos^2x} {sin x}$

step A is simply expressing each function in terms of sine and cosine.

step B is adding the terms on the LHS while multiplying the one on RHS.

step C is replacing the term on the numerator with the equivalent from the pithagorean identity $cos^2x + sin^2x = 1$

8 0

2 years ago

Greg is building a gazebo and wants to brace each corner by placing a 21-inch wooden bracket diagonally as shown. How far below

castortr0y [4]

Answer:

can you send a pic of the question plz

Step-by-step explanation:

7 0

2 years ago

Haben knows that the angle of elevation from the top of a rock formation to a stake in the ground 50 feet from its base is 42°.

Murrr4er [49]

Answer:

The height of the rock formation is $45.02\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

$tan(42\°)=h/50$

solve for h

$h=50*tan(42\°)=45.02\ ft$

4 0

3 years ago

Read 2 more answers

75 is 25% more than 60, but 60 is 20% less than 75, explain why?

xxMikexx [17]

Answer:

Explanation:

15 goes into 60, 4 times (1 fourth is equal to 25%).

15 goes into 75, 5 times (1 fifth is equal to 20%)

So 75 is one fifth more because it has a value of 15 more, and 60 is 1 fourth less than 75 because its value is more minuscule and less is more.

If you don't understand this was quite the challenge to explain.

4 0

3 years ago