All categories

2 years ago

What is the area of the grey matting in this 16” by 20” picture frame if the picture to be framed is 8” x 10”?

Mathematics

2 answers:

Blababa [14]2 years ago

5 0

Answer=240”
Step-by-step
16”x20”=320”
8”x10”=80”
320”-80”=240”
Please let me know if this helps! :)

n200080 [17]2 years ago

3 0

Answer: 240”
Step-by-Step:
16” x 20” = 320”
8” x 10” = 80”
320” - 80” = 240”

You might be interested in

X=|y| what is the domain and range ?

cricket20 [7]

Answer:

Domain: x ≥ 0

Range: All real numbers

Step-by-step explanation:

This is an absolute value function which creates a V for its graph. Since the absolute value is on y, the function is rotated to the right or sideways.

This means only the x values of 0 and greater are used in the function. Since the domain is the set of all x values then it is x≥0.

This also means that all y values are used on the y-axis. There is no restriction on the y values. Since the range is the set of all y values then it is all real numbers.

5 0

2 years ago

Solve the equation 4sqrt(3m ^ 2 - 15) = 4

Deffense [45]

Answer:

See the image below:)

Step-by-step explanation:

I can only show half of the steps, but these are some of the steps. You can use the app photo math, just take a picture and it will show you the steps and answer.

5 0

2 years ago

Hey! please help posted picture of question

lara31 [8.8K]

The answer is D) 2

Since it is given that there have been 9 slices eaten, we can assume that whatever amount of slices were cut in total will have 9 reduced from the amount. With the fraction 2/11, we know 11-9=2, which fits perfectly into this description so 2 slices have not been eaten.

3 0

2 years ago

Read 2 more answers

6. A certain $400 investment is increasing 10%

Mars2501 [29]

Answer:

0.10

Step-by-step explanation:

0.10 = 10/100 or 10%

Multiply 400*0.10 to get 10% of 400.

6 0

2 years ago

The weights of college football players are normally distributed with a mean of 200 pounds and a standard deviation of 50 pounds

Feliz [49]

Answer:

0.3811 = 38.11% probability that he weighs between 170 and 220 pounds.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 200, \sigma = 50$