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Reika [66]
3 years ago
12

A sporting goods store is having a 15% off sale on all items. Which functions can be used to find the sale price of an

Mathematics
1 answer:
Bess [88]3 years ago
4 0

Answer:

y = 0.85x

f(x) = x - 0.15x

All the choices seem to have a missing decimal point.

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The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of
Harlamova29_29 [7]

The standard deviation for the number of seeds germinating in each batch is 1.3

<u>Solution:</u>

<em><u>In binomial distribution, standard deviation is given as:</u></em>

\sigma=\sqrt{np(1-p)}

Where "n" is the number of observations

"p" is probability of getting success

We are given that:

Total batches of seed = 8

Probability that a radish seed will germinate is 0.7

Here success is getting radish seed germinated

<em><u>Then, the standard deviation for the number of seeds germinating in each batch.</u></em>

Plugging in values in formula, we get

\sigma=\sqrt{(8)(0.7)(1-0.7)}\\\\=\sqrt{(8)(0.7)(0.3)}\\\\=\sqrt{1.68}\\\\=1.29614\approx1.3

Therefore the standard deviation for the number of seeds germinating in each batch is 1.3

3 0
3 years ago
Please help quick!! pythagorean theorem!
Ivahew [28]

Answer:

hmmmmm not sure

Step-by-step explanation:

8 0
3 years ago
Annabelle mixes x gallons of 85% alcohol solution with 2 gallons of 25% alcohol solution to make a 60% hand sanitizer. How many
Mkey [24]

Answer:81

Step-by-step explanation:

85% + 50% - 60%

135% - 60%

4 0
2 years ago
The area of a rectangle is given by the equation y=x^2-9x+14. If the area is 50 square units, what is the value of x?
Simora [160]
50 = x^2 - 9x + 14
x^2 - 9x + 14 - 50 = 0
x^2 - 9x - 36 = 0
(x - 12)(x + 3) = 0

x - 12 = 0
x = 12 <==

x + 3 = 0
x = -3......not this one
6 0
3 years ago
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Can someone please help me on this i dont understand
LuckyWell [14K]
18 is 64 If that helps
7 0
3 years ago
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