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2 years ago

Which equation represents the relationship in the graph? giving brainliest!!!

Mathematics

2 answers:

Xelga [282]2 years ago

6 0

A，the intercept is equal to 70

dimulka [17.4K]2 years ago

6 0

Answer:

a) $y=-5x+70$

Step-by-step explanation:

Choose points on the line: (0, 70) and (4, 50)

Let $(x_1,y_1)$ = (0, 70)

Let $(x_2,y_2)$ = (4, 50)

Use the slope formula to find slope: $m=\dfrac{y_2-y_1}{x_2-x_1}$

$\implies m=\dfrac{50-70}{4-0}=-5$

Use point-slope form of linear equation to find equation:

$\implies y-y_1=m(x-x_1)$

$\implies y-70=-5(x-0)$

$\implies y=-5x+70$

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Suppose a horticulturist measures the aboveground height growth rate of four different ornamental shrub species grown in a green

torisob [31]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The decision is to reject the null hypothesis at a significant level of significance $\alpha = 0.05$ There is sufficient evidence to conclude that at least one of the population mean is different from at least of the population

Step-by-step explanation:

From the question we are told that the claim is

The mean growth rates of all four species are equal.

The null hypothesis is

$H_o : \mu _1 = \mu_2 = \mu_3 = \mu_4$

Th alternative hypothesis is

$H_a: at \ least \ one \ of \ the \ means \ is \not\ equal$

From question the p-value is $p-value = 0.015$

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7 0

3 years ago

What are the answers and work for 15, 18, and 21

Sholpan [36]

To solve equations such as the ones you listed above, our end goal is to isolate the variable (the letter that represents an unknown value).

Let’s begin with Number 15.

a/5 - 2 = 9

Due to the reverse order of operations, we should first add 2 to both sides of the equation.

a/5 = 11

To solve, we should multiply both sides by 5 to get rid of the denominator on the variable a.

a = 55 (answer)

Next, we can move onto number 18.

2/3g + 6 = -12

To solve this equation, we should begin by subtracting 6 from both sides.

2/3g = -18

Next, we can get the variable g alone by multiplying both sides by 3/2 (this will cancel out the coefficient of 2/3 on the variable g).

g = -27 (answer)

Finally, we can solve number 21 in a similar manner.

(c-5)/4 = 3

To solve this problem, we should first multiply both sides by 4 to get rid of the denominator on the variable c.

c - 5 = 12

To finish our simplification, we should add 5 to both sides of the equation to get the variable c completely alone.

c = 17 (answer)

Therefore, your answers to questions 15, 18, and 21, are 55, -27, and 17, respectively.

Hope this helps!

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3 years ago

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Luda [366]

Answer:

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Step-by-step explanation:

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3 years ago

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jonny [76]

Answer:

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Step-by-step explanation:

Mao will say more numbers because, to get to 30, you must count by fives 6 times. For example, 5,10,15,20,25,30. There are 6 numbers there. On the contrary, Alana is only going to count 4 times. 10,20,30,40. 6 is greater than 4, therefore Mao will say more numbers. I hope this helps!

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2 years ago

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DENIUS [597]

Answer:

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Step-by-step explanation:

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2 years ago

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