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iogann1982 [59]
4 years ago
15

24Is60%ofwhat number

Mathematics
2 answers:
chubhunter [2.5K]4 years ago
5 0
The answer is 40. If you divide 24 by 0.6 (the decimal form of 60%) you get 40. To check multiple 40 by 60% and you get 24.
shepuryov [24]4 years ago
4 0
24 is 60% of 40. Divide 24 by 6 and multiply that answer by 10.
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PLEASE HELP ASAP 30 POINTS!!! WILL GIVE BRAINLIEST!!
r-ruslan [8.4K]

1. The factoring step is

sin²<em>θ</em> - cos²<em>θ</em> sin²<em>θ</em> = sin²<em>θ</em> (1 - cos²<em>θ</em>)

Then the Pythagorean identity is invoked:

cos²<em>θ</em> + sin²<em>θ</em> = 1   →   1 - cos²<em>θ</em> = sin²<em>θ</em>

so that

sin²<em>θ</em> - cos²<em>θ</em> sin²<em>θ</em> = sin²<em>θ</em> sin²<em>θ</em> = sin⁴<em>θ</em>

(third option)

<em />

2. Recall that <em>a</em> ² - <em>b</em> ² = (<em>a</em> - <em>b</em>) (<em>a</em> + <em>b</em>). The numerator here is such a difference of squares:

csc²<em>x</em> - 1 = (csc<em>x</em> - 1) (csc<em>x</em> + 1)

Then

(csc²<em>x</em> - 1) / (1 + sin<em>x</em>) = ((csc<em>x</em> - 1) (csc<em>x</em> + 1)) / (1 + sin<em>x</em>)

Recall that csc<em>x</em> = 1/sin<em>x</em>, so rewrite this as

… = ((1/sin<em>x</em> - 1) (1/sin<em>x</em> + 1)) / (1 + sin<em>x</em>)

In the numerator, pull out a factor of 1/sin<em>x</em> from both terms:

… = (1/sin<em>x</em> (1 - sin<em>x</em>) × 1/sin<em>x</em> (1 + sin<em>x</em>)) / (1 + sin<em>x</em>)

… = ((1 - sin<em>x</em>) (1 + sin<em>x</em>)) / (sin²<em>x</em> (1 + sin<em>x</em>))

Cancel the common factor of 1 + sin<em>x</em> :

… = (1 - sin<em>x</em>) / sin²<em>x</em>

Expand the fraction and rewrite sin in terms of csc :

… = 1/sin²<em>x</em> - sin<em>x</em>/sin²<em>x</em>

… = 1/sin²<em>x</em> - 1/sin<em>x</em>

… = csc²<em>x</em> - csc<em>x</em>

Factor out csc<em>x</em> to get the second option,

… = csc<em>x</em> (csc<em>x</em> - 1)

5 0
3 years ago
Is 40 is 50% of 80 true or false<br> With step by step evidence
Fantom [35]

Answer:

please mark brainliest

it is true

Step-by-step explanation:

if you multiplie 80 by 0.50 you will get 40,

4 0
3 years ago
The radius of a circle is 10 kilometers. What is the area?
solniwko [45]
100pi kilometers, or 314 kilometers if you use 3.14 for pi.
4 0
3 years ago
PLEASE HELP!! THANKS!<br><br> What is the 4th term in the sequence?
Anit [1.1K]

Answer:

b(4) = -405

Step-by-step explanation:

The first term of the sequence has been represented by 15.

The common ratio is -3

Since the first term is 15 you would have to multiply by -3 to find the next three terms.

B(1) = 15

B(2) = -45

B(3) = 135

B(4) = -405

The fourth term is -405

Answer:

-405

5 0
3 years ago
Name all the radii.<br><br> Please help me.
rosijanka [135]

Answer:


Step-by-step explanation:

we know,

radius is the distance from center of a circle to the circumference.

Here, from the figure we get,

There are three radius marked in this circle.

These measurements are-

OU , OR and OT


So, the  radii are-

OR , OU , OT

7 0
4 years ago
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