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4 years ago

9. Which of the following equations below is a linear function with a slope of -3?

Mathematics

1 answer:

amm18124 years ago

6 0

Answer:

Step-by-step explanation:

its b y - 3=2(x - 1)

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There are 8 states in the United States that begin with the letter “M.” If you chose a state at random, what is the probability

Goryan [66]

Answer: 8/50

Step-by-step explanation:

simplified is 4/25

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4 years ago

ASAP PLS

VikaD [51]

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3 years ago

Given the piecewise function shown below , select all of the statements that are true.

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3 years ago

A researcher is planning to compare the effects of two different types of lights on the growth of bean plants. She expects that

kicyunya [14]

Answer:

The sample size is $n = 36$

Step-by-step explanation:

From the question we are told that

The sample standard deviation is $s = 1.5$

The mean difference of the two groups is $\=x _ 1 - \=x_2 = 1$

The standard error is $SE = \frac{ \= x_1 - \= x_2}{4}$

=> $SE = \frac{1}{4}$

Let assume that the confidence level is 95% hence the level of significance is

$\alpha = (100-95)\%$

=> $\alpha = 0.05$

So the critical value of $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * SE$

$E = 1.96 * \frac{1}{4}$

$E = 0.49$

Generally the sample size is mathematically represented as

$n =[ \frac{Z_{\frac{\alpha }{2} * s^2}}{E}]^2$

=> $n = [\frac{1.96 * 1.5}{0.49} ]^2$

=> $n = 36$

6 0

4 years ago

Find d:

BlackZzzverrR [31]

Answer:

D = 51, other = 30

Step-by-step explanation:

d = | 5 1 |

|-1 10|

D = (5 x 10) - ( 1 x -1) = 50 + 1 = 51

| 2 4|

|-3 9|

(2 x 9) - (4 x -3) = 18 + 12 = 30

6 0

3 years ago