3 years ago

Is number 30 -r=-23?

Mathematics

1 answer:

Nonamiya [84]3 years ago

3 0

The answer still have x unless you have x value to substitute with

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Can you explain this?

zvonat [6]

Answer:

I know y intercept is when the line first touches the Y line which is the vertical line.

3 0

3 years ago

3/4 of a number is 24. What's the number?

Lady_Fox [76]

Hi

3x/4 = 24
3x = 24·(4)
3x = 96
x = 96/3
x = 32

3/4 of 32 is 24

4 0

3 years ago

What is the equation of the line that passes through the point (-2,7) and has a slope of zero

Yanka [14]

Answer:

y = 0

Step-by-step explanation:

y - y₁ = m(x - x₁)

y - (7) = 0(x - (-2))

y - 7 = 0(x + 2)

y - 7 = 0

y = 7

7 0

3 years ago

I need to know number 37 please help I keep getting it wrong

Thepotemich [5.8K]

I just worked it out and I got 6 3/28
Im sorry if that's wrong

5 0

4 years ago

Read 2 more answers

15. Two methods are used to predict how many customers will call in for help in the next four days. The first method predicts th

Marizza181 [45]

Answer:

Method 1 has bigger forecast bias.

Step-by-step explanation:

We are given the following information in the question:

Actuals:

23, 10, 15, 19

Method 1 prediction:

23, 5, 14, 20

Residuals = Predicted - Actuals

Sum of square of errors:

$=(23-23)^2+(5-10)^2+(14-15)^2+(20-19)^2\\= 27$

Mean squared error:

$\dfrac{\text{Sum of squares}}{n} = \dfrac{27}{4} = 6.75$

Method 2 prediction:

20, 13, 14, 20

Residuals = Predicted - Actuals

Sum of square of errors:

$=(20-23)^2+(13-10)^2+(14-15)^2+(20-19)^2\\= 20$

Mean squared error:

$\dfrac{\text{Sum of squares}}{n} = \dfrac{20}{4} = 5$

Since, mean square error of method 2 is less as compared to method 1, method 1 has bigger forecast bias.

4 0

4 years ago