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3 years ago

Which shows the dilation with a possible scale factor if 1/2

Mathematics

2 answers:

creativ13 [48]3 years ago

4 0

Answer:

its the second one if you are on E d g e n u i t y

Step-by-step explanation:

NikAS [45]3 years ago

3 0

Answer:

There is no diagram or any information of what you are dilating but a simple tip is to DIVIDE THE TARGET BY 2

Step-by-step explanation:

You would divide by two because you're dilating by 1/2

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Directions for questions 4 & 5: We selected a random sample of 100 StatCrunchU students, 67 females and 33 males, and analyz

GaryK [48]

Answer:

The 95% confidence interval for the difference between means is (-2164.21, -299.13).

The lower limit on the confidence interval is -$2164.21.

The upper limit on the confidence interval is -$299.13.

Step-by-step explanation:

The sample data is:

Gender Mean Std. dev. n

Female 2577.75 1916.29 67

Male 3809.42 2379.47 33

We have to calculate a 95% confidence interval for the difference between means, with a T-model.

The sample 1, of size n1=67 has a mean of 2577.75 and a standard deviation of 1916.29.

The sample 2, of size n2=33 has a mean of 3809.42 and a standard deviation of 2379.47.

The difference between sample means is Md=-1231.67.

$M_d=M_1-M_2=2577.75-3809.42=-1231.67$

The estimated standard error of the difference between means is computed using the formula:

$s_{M_d}=\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma_2^2}{n_2}}=\sqrt{\dfrac{1916.29^2}{67}+\dfrac{2379.47^2}{33}}\\\\\\s_{M_d}=\sqrt{54808.468+171572.045}=\sqrt{226380.513}=475.795$

The t-value for a 95% confidence interval is t=1.96.

The margin of error (MOE) can be calculated as:

$MOE=t\cdot s_M=1.96 \cdot 475.795=932.54$

Then, the lower and upper bounds of the confidence interval are:

$LL=M_d-t \cdot s_{M_d} = -1231.67-932.54=-2164.21\\\\UL=M_d+t \cdot s_{M_d} = -1231.67+932.54=-299.13$

The 95% confidence interval for the difference between means is (-2164.21, -299.13).

6 0

3 years ago

a new seporter at a family amusement park ask 10th person exiting the park about their experience at the park

Svet_ta [14]

Answer:

Step-by-step explanation:

7 0

3 years ago

Find the x-intercept of the line whose equation is 8x + 2y = 4.<br> 04<br> 02<br> 1/2

bezimeni [28]

Answer:

1/2

Step-by-step explanation:

The x-intercept is a point on the graph that is located on any point of x but must have a y-value of 0. To find the x-intercept, we must set y in the given equation equal to 0.

8x + 2y = 4

8x + 2(0) = 4

8x = 4

x = 4/8

x = 1/2

4 0

2 years ago

What is the slope and rate change?

jekas [21]

Slope is 3/2 rate of change is

7 0

3 years ago

A pair of opposite rays would be.

vodomira [7]

Answer:

Option (4)

Step-by-step explanation:

Definition of a ray states that a segments which connects two points but extending only in one direction infinitely is called as Ray.

Opposite rays will have a common end but the direction of the arrows will be different.

Therefore, from the picture attached,

Opposite rays will be PA and PB.

Option (4) will be the correct option.

7 0

3 years ago