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zvonat [6]
3 years ago
14

Solve the application problem. find the perimeter of a ruler that measures 6 inches by 5656 inch.

Mathematics
1 answer:
AleksAgata [21]3 years ago
5 0
The perimeter of a ruler that measures 6 in. by 5656 in. is 11,324 in. 

Explanation: 
To find the perimeter<span> of a rectangle or square you have to add the lengths of all the four sides.</span>
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What is the length of BC¯¯¯¯¯ ? Enter your answer in the box.
statuscvo [17]

Answer:

BC = 24

Step-by-step explanation:

Isosceles triangle because <C = <B so AC = AB

Plug in to find x

3x - 15 = x = 33

2x = 48

 x = 24

BC = x = 24

3 0
3 years ago
What is the slope of the line l described by the equation below? y=-2x+4
Masteriza [31]

Answer:

The slope of the line would be -2.

Step-by-step explanation:

Because the equation is a line, the slope is the same throughout the entire graph on the equation.

Lets let f(x)=y=-2x+4.

f(0) = -2(0) + 4 = 4

f(0)=4

f(1) = -2(1) + 4 = 2

f(1)=2

Use the equation to find slope.

m(slope) = \frac{2-4}{1-0} = \frac{-2}{1} = -2

<em>The slope would be -2.</em>

<em />

Or:

Use the equation y = mx + b where m=slope.

In the equation y=-2x+4, m=-2.

<em>The slope is -2.</em>

6 0
3 years ago
A normal distribution has a mean of 137 and a standard deviation of 7. Find the z-score for a data value of 121. Incorrect Round
Neko [114]

Answer:

The z-score for a data value of 121 is -2.29.

Step-by-step explanation:

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 problem, we have that:

\mu = 137, \sigma = 7

Find the z-score for a data value of 121.

This is Z when X = 121. So

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

Z = \frac{121 - 137}{7}

Z = -2.29

The z-score for a data value of 121 is -2.29.

4 0
3 years ago
Read 2 more answers
What is the surface of a cube with the side lenght of 9cm
marissa [1.9K]
<span>The total surface area is SA = 6 </span>× a^{2};
SA = 6 × 9^{2} = 6 × 81 = 486 cm^{2};
5 0
3 years ago
Nine times nineteen<br> Equals to
Leokris [45]

Answer:

171

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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