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Salsk061 [2.6K]
3 years ago
8

Please help me with this !

Mathematics
2 answers:
lakkis [162]3 years ago
7 0

For this case we must simplify the following expression:

-32 ^ {\frac {3} {5}}

We can rewrite the 32 as 2 ^ 5 = 2 * 2 * 2 * 2 * 2

So:

- (2 ^ 5) ^ {\frac {3} {5}}

By definition of power properties we have to:

(a ^ n) ^ m = a ^ {n * m}

So:

- (2 ^ 5) ^ {\frac {3} {5}} = - 2 ^ {\frac {15} {5}} = - 2 ^ 3 = -2 * -2 * -2 = -8

Answer:

-8

alexandr1967 [171]3 years ago
5 0

Answer:

-8 is the solution

Step-by-step explanation:

-32\frac{3}{5}=-8

((-32)^{\frac{1}{5}})^{3}\\\\-2^{3}=-8

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The water levels at high tide was 9 feet and 1 foot at low tide
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What is the result of multiplying the second equation by 2 and adding to the first equation?
vladimir1956 [14]

Answer:

5x + y = 8

Step-by-step explanation:

Given the equations:

x+3y=10 ____ (1)

2x−y=−1 ____ (2)

Multiply (2) by 2

2(2x - y = - 1) = 4x - 2y = - 2

4x - 2y = - 2 - - - (3)

Add (1) and (3)

4x - 2y = - 2

x + 3y = 10

___________

5x + y = 8

_________

3 0
3 years ago
Read 2 more answers
Sasha baked 21 cookies with 3 scoops of flour. How many scoops of flour does Sasha need in order to bake 28 cookies? Solve using
aniked [119]
4 because 21 is 3x7 and 28 is 4x7
5 0
2 years ago
A livestock company reports that the mean weight of a group of young steers is 1143 pounds with a standard deviation of 88 pound
malfutka [58]

Answer:

<em>a) P(x<1200)=74.14%</em>

<em>b) P(1100<X<1250)=57.54%</em>

Step-by-step explanation:

<u>Normal Distribution</u>

The normal distribution, also known as the bell curve, is a distribution that occurs naturally in many situations of life. We use the model N(\mu,\sigma) to understand the behavior of some real-life variables. Where \mu is the mean value and \sigma is the standard deviation.

In our case, we have

\mu=1143,\ \sigma=88

And are required to find the percentage of steers whose weigh lie within a given range. We must use some sort of table or digital means to compute the values because the normal distribution cannot be calculated directly by a formula. We use the NORMDIST (or NORM.DIST) formula for Excel which gives us the left tail of the area behind the bell curve, i.e. the cumulative percentage for a give value of X. The formula has the form

NORM.DIST(x,mean,standard_dev,cumulative)

a) X<1200

The formula is used with the following parameters

NORM.DIST(1200,1143,88,true)

and we get

P(X

b) We need to compute P(1100<X<1250). To do this, we calculate both left tails and the subtract them

NORM.DIST(1100,1143,88,true)=0.3125

NORM.DIST(1250,1143,88,true)=0.8880

P(1100

\boxed{P(1100

6 0
3 years ago
There are 57 people and i want everyone to have a slice of cake and i want to pay as little as possible and I want them to be th
julsineya [31]
So,

If you do some simple division, you will find how much each cm costs in each cake.
20cm cake = 67.5 cents/cm
25cm cake = 93.75 cents/cm

Assuming that you cannot order fractions of cakes, the best deal would be to order 5 of the 20cm cakes.
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You will have to pay $67.50 for the cakes if you want the best deal.
8 0
3 years ago
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