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babymother [125]
3 years ago
5

Write the expression as a single power using only positive exponents, if possible. Assume no denominator equals zero. Will give

brainliest!

Mathematics
1 answer:
Olenka [21]3 years ago
4 0
The answer is 1/x^10.

You subtract exponents when you divide, so: x^-6 - x^4. That equals x^-10.

Since the exponent is negative, you must put it in the denominator. Since this fraction has nothing in the numerator, use "1" as a placeholder.

Therefore, the answer is 1/x^10. Hope this helps!
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234 divided by 33 I really need this answer doing school work
Elodia [21]

Answer:

7.0909090909 hope this helps!!

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3 years ago
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What is the probability that five randomly selected students will have a mean score that is greater than the mean achieved by th
katrin2010 [14]

Answer:

the probability that five randomly selected students will have a mean score that is greater than the mean achieved by the students = 0.0096

Step-by-step explanation:

From the five randomly selected students ; 160, 175, 163, 149, 153

mean average of the students = 160+175+163+149+153/5

= mean = x-bar = 800/5

mean x-bar = 160

from probability distribution, P(x-bar > 160) = P[ x-bar - miu / SD > 160 -150.8 /3.94]

P( Z>2.34) = from normal Z-distribution table

= 0.0096419

= 0.0096

hence the probability that five randomly selected students will have a mean score that is greater than the mean achieved by the students = 0.0096

where SD = standard deviation = 3.94 and Miu = 150.8

5 0
3 years ago
.....does anyone know the answer its not 9 units
Sedbober [7]

Answer:

The answer is 10 units

5 0
3 years ago
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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
Hey guys I just wanted to put this out there-
tino4ka555 [31]

ok thank you so much for the info

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3 years ago
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