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Nutka1998 [239]
3 years ago
12

Give your answer with an exponent

Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0
5³*5^6=5^9
8^7/8²=8^5
9^7/9^11=1/9²
4^5^3=4^15

when multiplying like bases you add exponents. when dividing like bases you subtract exponents. when reasoning a number to a power then to another power you multiply exponents
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4. Solve the simultaneous equations<br> x+2y=3<br> 2x+3y = 5
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3 years ago
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Convert 55°44'33" to decimal degree form. Round your answer to four decimal places.​
Andreyy89

Answer:

55,7425

Step-by-step explanation:

Since there are 60 minutes in one degree and 3600 seconds in one degree, the formula is:

Decimal degrees = Degrees + (Minutes/60) + (Seconds/3600)

Here Degrees stay the same 55;

44' = 44/60 ≈ 0,733...

33" = 33/3600  ≈ 0,009166...

I've divided and added those three numbers by calculator in one operation and it shows exactly 55,7425. If you add them separately, you'll need to round the result.

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2 years ago
The area of a square floor on a scale drawing is 25 square centimeters, and the scale drawing is 1 centimeter:4 ft. What is the
GREYUIT [131]
100 square feet 1:4 25:100
4 0
2 years ago
Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o
Juliette [100K]

Answer:

95% Confidence interval:  (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)

(31.32%,47.04%)  is the required 95% confidence interval.

8 0
3 years ago
Which statements are true about the curve? Check all
Shalnov [3]

Answer

The answer is 2,3,5

3 0
3 years ago
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