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3 years ago

The temperature decreased by 11 degrees. enter an integer that represents the situation

Mathematics

1 answer:

dem82 [27]3 years ago

6 0

If its talking about the temperature decreased it would be -11 but it's asking for an integer

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Georgia needed some batteries for her flashlights. She bought 4 batteries for $6.80. At that rate, how much would 10 batteries c

Lina20 [59]

Answer:

B $17.00

Step-by-step explanation:

8 batteries are 13.60

6.80 split in half to become 2 is 3.40 and then I added 13.60 plus 3.40 to get 17.00

4 0

3 years ago

What is the surface area of the cylinder?

ruslelena [56]

A= 3631.68

Step-by-step explanation:

the formula to find the surface area is A=2πrh+2πr^2 so when you substitute all your radius values and height values, you get approximately 3631.68

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3 years ago

A marketing research company desires to know the mean consumption of milk per week among people over age 30. They believe that t

Nitella [24]

Answer:

651 is the minimum number of people over age 30 they must include in their sample.

Step-by-step explanation:

We are given the following information:

Confidence level = 90%

Significance level = 10%

Maximum error = 0.09

Variance = 1.96

$\text{Standard Deviation} = \sqrt{\text{Variance}} = \sqrt{1.96} = 1.4$

Formula:

$\text{Error} = z_{critical}\dfrac{\sigma}{\sqrt{n}}$

Putting all the values,

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.64$

$0.09 = 1.64\times \dfrac{1.4}{\sqrt{n}}\\\\n = (\dfrac{1.64\times 1.4}{0.09})^2 = 650.81 \approx 651$

651 is the minimum number of people over age 30 they must include in their sample.

7 0

3 years ago

Quadrilateral EFGH is on a coordinate plane.Segment GH is on the line 2x+y=2, and segment FE is on the line 2x+y=4. Which statem

avanturin [10]

Answer: OPTION D.

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope and "b" is the y-intercept.

You know that the segment GH is on this line:

$2x+y=2$

Solving for "y", you get:

$y=-2x+2$

So you can identify that:

$m=-2\\b=2$

The segment FE is on this line:

$2x+y=4$

Solving for "y", you get:

$y=-2x+4$

Then you can identify that:

$m=-2\\b=4$

As you can notice, the lines have the same slope of $-2$ . This means that they are parallel.

4 0

3 years ago

Read 2 more answers

28 please help I don't understand what it's asking

mixer [17]

Isn't it a function considered a function if it has no intersecting lines? Maybe you should graph it and see if it has intersecting lines or not. If it doesn't the it's a function if
it does then it's not. I think..?

7 0

3 years ago