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3 years ago

What is the value of the expression shown below?

Mathematics

1 answer:

nikdorinn [45]3 years ago

5 0

The answer to this question is -2

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Can someone give me a questions about Units

erica [24]

Answer:

How many items can a normal-sized unit hold?

Step-by-step explanation:

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2 years ago

A recent survey found that 7575% of all adults over 50 wear glasses for driving. In a random sample of 4040 adults over 50, wh

malfutka [58]

Answer:

Mean = 30

standard Deviation = 2.74

Step-by-step explanation:

Formula

mean = np

Standard Deviation = $\sqrt{npq}$

from the question = 40

P = 75% or 0.75

q = 1 - p = 1 - 75% or 1 - 0.75

To find mean

mean = 40 x 0.75

= 30

For Standard Deviation (SD)

Standard Deviation = $\sqrt{npq}$

= $\sqrt{40 X 0.75 X 0.25$

= $\sqrt{7.5}$

:. Standard Deviation = 2.74

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2 years ago

Blake has a graden in his back yard. He picked 55 tomatoes from 5 plants. what is the ratio of tomato plants tomatoes picked?

oksian1 [2.3K]

Answer:

Step-by-step explanation:

he picked 11 tomatoes per plant, 55 ÷ 5 = 11 so all answers that dont include an 11 are incorrect, A and C are wrong

because the tomato plants are listed before the tomatoes picked in the ratio that means that the number of plants has to be first, and the number of tomatoes has to be second. that means the answer is D, 1 plant: 11 tomatoes

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3 years ago

What is equivalent expression to 5y^-3?

docker41 [41]

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3 years ago

Please help ASAP<br> Algebra 2<br> (the answer is a x and y equation)

Ratling [72]

Answer:

(2, 8)

Step-by-step explanation:

A hole occurs when the denominator is equal to 0. In this case, the denominator equals zero when x = 2.

Next, we must find the value of y by factoring the numerator and simplifying: $\frac{x^{2} +4x-12}{x-2} = \frac{(x-2)(x+6)}{x-2} = x+6$

Then plug in 2 for x:

2 + 6 = 8.

Therefore, there is a hole at (2, 8)

4 0

3 years ago