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3 years ago

- (y36 y9) do anybody know the answer?

Mathematics

1 answer:

OLEGan [10]3 years ago

4 0

Answer:

Your answer should be -y^45

Step-by-step explanation: When you multiply exponents, it is the same as adding them. So, add 36 and 9, which equals 45. Then, make the answer negative because of the first negative sign.

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A table is on sale for 65% off. the sale price is $154 . what is the regular price?

Yuliya22 [10]

The original price is $254.10 or 254 rounded. 154 times .65 is 100.1. Add 100.1 to the sale price which is 154 and you'll get the original, 254.
Hope this helps :)

7 0

3 years ago

The distribution of passenger vehicle speeds traveling on a certain freeway in California is nearly normal with a mean of 73.7 m

umka2103 [35]

Answer:

a) 0.2347, 0.0007

b) 1.30

c) 0.63

Step-by-step explanation:

Given –

Mean = 73.4

Sigma = 4.7

Probability that the speed is greater than 70 is

P (X>70) = P (z> (70-73.4)/4.7) = P (z>-0.72) = 0.7653

a) The probability that a car is not speeding = 1 - 0.7653 = 0.2347

The probability that all 5 cars are not speeding = (0.2347)5 = 0.0007

b) E (X) = 1/p = 1/0.7653 = 1.30

c) Standard deviation = Sqrt (1-p/p) = (1-0.7653)/0.7653 = 0.63

5 0

2 years ago

Juan did a survey in four butterfly parks and wrote the following observations: Butterfly Park Survey Park Number of Pink Butter

Elena L [17]

Answer:

Park Q has greatest percentage of pink butterflies.

Step-by-step explanation:

Butterfly Park Survey Park P Q R S

No, of Pink Butterflies 25 35 37 23

Total Number of Butterflies 53 64 75 55

Now we are supposed to find which park had the greatest percentage of pink butterflies

So, Percentage of pink butterflies in park P = $\frac{25}{53} \times 100=47.169\%$

Percentage of pink butterflies in park Q = $\frac{35}{64} \times 100=54.68\%$

Percentage of pink butterflies in park R= $\frac{37}{75} \times 100=49.33\%$

Percentage of pink butterflies in park S= $\frac{23}{55} \times 100=41.81\%$

So, Park Q has greatest percentage of pink butterflies.

So, Option B is true

Hence Park Q has greatest percentage of pink butterflies.

4 0

3 years ago

Lee drove a car 2,904.6 kilometers on a recent vacation. The odometer reading on his car was 99,532.4 kilometers when he returne

DedPeter [7]

To find the odometer reading before the trip, we just need to subtract the distance that Lee drove in recent vacation form the current odometer reading in his car.
We know for our problem that Lee drove 2,904.6 kilometers and the current odometer reading on his car is 99,532.4 kilometers, so lets perform our operation:
Odometer reading before the trip= $99,532.4km-2,904.6km=96,627.4km$

We can conclude that the odometer reading before the trip was 96,627.4 kilometers.

8 0

3 years ago

Vanessa has a budget for a school stationery of $36 but has already spent $10.00 on books and folders let p represent the amount

Romashka-Z-Leto [24]

Answer:you will have $26.00

Step-by-step explanation:

6 0

3 years ago