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3 years ago

Which lease best describes the translation from the graph y=(x-5)2+7 to the graph of y=(x+1)2-2?

Mathematics

1 answer:

vlabodo [156]3 years ago

7 0

Answer:

The change would be that the entire graph is shifted to the left 6 and down 9.

Step-by-step explanation:

When we change the number inside of the parenthesis, the shift moves left to right. The shift is in the opposite direction of the number shift. So since the number inside goes up by 6, the graph moves to the left 6.

The number outside of the parenthesis is an up and down shift. Since the number goes down by 9, the graph also goes down by 9.

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1. Dolores is on a bridge that is 42 feet above a lake. What is the distance from Dolores to the boat? G

mrs_skeptik [129]

Answer:

See answer below

Step-by-step explanation:

You are missing data such as the angle of the boat next to Dolores. I found an exercise similar to this, and I'm going to show it here and use the missing data to show you how to do it:

Dolores is on a bridge that is 45 feet above a lake. She sees a boat at a 30 degree angle of depression. What is Dolores' approximate horizontal distance from the boat?

According to that, I will use the angle of 30° to do this, but the distance of 42 feet.

Now, we can see this as a triangle. Dolores is on a bridge 42 feet above a lake, this 42 feet distance should be one side of the triangle (The vertical forming the 90° angle), and the boat that is on the lake, is seen with an angle of 30°. So the distance of the boat, to the spot where dolores is, under the bridge would be the horizontal side.

With this, we have the opposite side (a) and the adyacent side (b) of the triangle, and we have the angle, therefore:

tanα = a/b

Replacing we have:

tan30° = 42/b

b = 42 / tan30°

b = 72.75 feet

Hope this helps

4 0

3 years ago

For a population with an unknown distribution, the form of the sampling distribution of the sample mean is _____. Group of answe

Nesterboy [21]

For a population where the distribution is unknown, the sampling distribution of the sample mean will be b which is approximately normal for all sample sizes.

Given options regarding sample sizes.

We have to choose the correct option which shows the sample mean characteristics when the distribution is unknown.

Based on the central limit theorem the sampling distribution of the sample mean for either skewed variable ir normally distributed variable can be approximated given the mean and standard deviation.

The central limit theorem is said to be true when n greater than or equal to 30.

When n is greater than 30 ,z test is used, when n is less than 30 ,t test is used.

Hence for a population where the distribution is unknown ,the sampling distribution of the sample mean will be approximately normal for all sample sizes.

Learn more about sample at brainly.com/question/24466382

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Question is incomplete as it includes options in a right way:

1)exactly normal for large sample,

2) approximately normal for all sample sizes,

3) exactly normal for all sample sizes.

6 0

2 years ago

Type the number in scientific notation 97,040,000 PLSSS HELP IM FAILING

Illusion [34]

3400000 in scientific notation

8 0

3 years ago

Greg has 21 new magazines to read. Let M be the number of magazines he would have left to read after reading R of them. Write an

Rina8888 [55]

M = 21 - R is our equation. Plug your value of 12 into the equation for R.

M = 21 - 12.

M = 9.

Greg would have 9 magazines left after reading 12 of them

7 0

2 years ago

What is the area of the triangle (-5,-2) (3,-1)

max2010maxim [7]

idk

Step-by-step explanation:

im to tired this sucks

3 0

3 years ago