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2 years ago

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Mathematics

1 answer:

DENIUS [597]2 years ago

6 0

A-60%

(5-2)/53/560% decrease

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The height, h, of a plant (in inches) w weeks since it was planted is represented by the equation h=1.2w+3. How many weeks will

alexandr1967 [171]

Answer:

7.5 weeks

Step-by-step explanation:

If you want to find out how long it take for the plant to reach a foot you set up the equation like so:

12=1.2w+3

and solve from there.

12=1.2w+3 Subrtact 3 from both sides

9=1.2w Divide by 1.2 to isolate w

7.5=w Answer is 7.5 weeks

7 0

3 years ago

Read 2 more answers

The percentage increase on an item is 9 %. The old price is R455.00 Calculate the new<br>price.<br>

nika2105 [10]

Hubbub is g vu ok just in b by

7 0

3 years ago

Circle O has a circumference of approximately 44 in.

timurjin [86]

Answer:

138.23

Step-by-step explanation:

4 0

3 years ago

HELP PLZ PLZ PLZ PLZ I MARK U THE BRAINEST

marysya [2.9K]

Answer:

option 2: y - 5x + 3

Step-by-step explanation:

you would first distribute the 10 and then divide the entire left side by 2

8 0

3 years ago

The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70

Standard Deviation, σ = 3

Sample size, n = 36

Let the average score of all pro golfers follow a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score of the 36 golfers was between 70 and 71)

$\text{Standard error of sampling} = \displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = \frac{1}{2}$

$P(70 \leq x \leq 71) = P(\displaystyle\frac{70 - 70}{\frac{3}{\sqrt{36}}} \leq z \leq \displaystyle\frac{71-70}{\frac{3}{\sqrt{36}}}) = P(0 \leq z \leq 2)\\\\= P(z \leq 2) - P(z \leq 0)\\= 0.977 - 0.500 = 0.477= 47.7\%$

$P(70 \leq x \leq 71) = 47.7\%$

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

8 0

4 years ago