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3 years ago

Kristen has 64 coins in her piggy bank. she has $9.25 in dimes and quarters. how many dimes and quarters does she have.

Mathematics

1 answer:

IRISSAK [1]3 years ago

8 0

I believe she has 25 dimes in quarters and the rest in which is 9.00 in quarters

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This is due by 3 today so answer fast <br><br> Classify the pair of angles:

UkoKoshka [18]

Answer:

Complementary angles

Step-by-step explanation:

Complimentary angles are 2 angles that sum up to 90 degrees

8 0

3 years ago

A rectangle has a height of and a width of 7x-4.

Mars2501 [29]

Answer: (7x - 4)(7x - 4) = 49x^2 - 28x - 28x + 16 = 49x^2 - 56x + 16

Step-by-step explanation:

7 0

1 year ago

A plane headed due south is traveling with an airspeed of 160 miles per

lord [1]

Answer:

60 °

Step-by-step explanation:

Applying the law of sine we have the following:

160 / Sin B = 80 / Sin 30 °

We solve for B and we have:

160 / Sin B = 80 / 0.5

160 / Sin B = 160

Without B = 160/160

B = Arc Sin (1)

B = 90 °

Now to calculate the other angle (true

course) would be:

A = 180 ° - (B + C)

A = 180 ° - (90 ° + 30 °)

A = 60 °

That is to say that true course is 60 °

5 0

3 years ago

Here are the prices of five new pairs of hockey skates, in dollars: 59, 60, 65, 99, 175. The standard deviation is about $49. If

Phoenix [80]

Answer:

The standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

Step-by-step explanation:

The prices are given to be : 59, 60, 65, 99, 175

Standard deviation = $49

Now, if we add or subtract any constant value to each of the terms then the standard deviation remains unchanged.

But, we add a new price in the given data that is $450

$\text{New standard deviation = }\sqrt{\frac{\sum (\bar{x}-x_i)^2}{n}}\\\\\bar{x}\text{ is the mean of data after adding 450 and}\\x_i\text{ are the price values of the sample data}$

Hence, Standard deviation is calculated to be 139.5

Therefore, the standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

6 0

3 years ago

Read 2 more answers

Select all graphs that represent functions

mylen [45]

Answer:

where is the functions

Step-by-step explanation:

3 0

2 years ago