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ipn [44]
3 years ago
9

Express 3/8 as a decimal

Mathematics
2 answers:
Softa [21]3 years ago
6 0

Answer: 0.375

Step-by-step explanation: To get this you would have to divide 8 with 3 like you would with a regular fraction

slavikrds [6]3 years ago
6 0

3/8 can be expressed as 0.375 in a decimal.

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1-sin^2x/sinx-cscx <br><br>How do I solve this problem? I keep getting the wrong answer.
Annette [7]

Answer:

-sinx

Step-by-step explanation:

a trig identity that is crucial to solving this problem is: sin^2 + cos^2 = 1

with knowing that, you can manipulate that and turn it into 1 - sin^2x = cos^x

so 1-sin^2x/sinx - cscx becomes cos^2x/sinx - cscx

it is also important to know that cscx is the same thing as 1/sinx

knowing this information, cscx can be replaced with 1/sinx

(cos^2x)/(sinx - 1/sinx)

now sinx and 1/sinx do not have the same denominator, so we need to multiply top and bottom of sinx by sinx; it becomes....

cos^2x

---------------------

(sin^2x - 1)/sinx

notice how in the denominator it has sin^2x-1 which is equal to -cos^2x

so now it becomes:

cos^2x

--------------

-cos^2x/sinx

because we have a fraction over a fraction, we need to flip it

cos^2x          sinx

---------- * ----------------

1                  -  cos^2x

because the cos^2x can cancel out, it becomes 1

now the answer is -sinx

3 0
3 years ago
Fx = 15x - 41x + 14 How do you figure this out?
PSYCHO15rus [73]
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5 0
3 years ago
Chandra earns $12.75 per hour at her job. How many hours will she have to work to earn $344.25
natali 33 [55]
She gotta work 27 hours cuz 344.24/12.75
6 0
3 years ago
Round 66,315,254 to the nearest ten-million
Flauer [41]

Answer:

Step-by-step explanation:

66,315,254.....rounded to the nearest 10 million =

70,000,000

4 0
3 years ago
Arthur is organising his collection of dvds he has 135 altogether. The ratio of comedy films to action horror is 6 : 8 : 1
Nina [5.8K]

Answer: See explanation

Step-by-step explanation:

The number of comedy films will be:

= 6/(6+8+1) × 135

= 6/15 × 135

= 54 comedy films

The number of action films will be:

= 8/(6+8+1) × 135

= 8/15 × 135

= 72 action films

The number of horror films will be:

= 1/(6+8+1) × 135

= 1/15 × 135

= 9 horror films

5 0
2 years ago
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