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Novay_Z [31]
3 years ago
12

Work out the length x

Mathematics
1 answer:
Ymorist [56]3 years ago
4 0

Answer:

x = √(14²-7²) = 7√3

Step-by-step explanation:

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Can u pls give pls the answers plss​
Reptile [31]

Answer:  The answers are in the image attached.

Step-by-step explanation:  Slope-Intercept equations and graphs.

These are in y = mx + b form. M is slope. b is the y-intercept

For the y-intercept, you identify and label the place on the y-axis where the graphed line crosses it.  That is one HINT to figuring out the equation that matches the graph. If the y-intercept is 0, there will be nothing after the 'x' term. If the y intercept ia any other number, that number will appear as a + or - after the 'x' term when you simplify the equation in y = mx + b form.

You have to draw the "stair steps" It helps you see slope.  How many blocks up or down is the Rise.  How many blocks from left to right is the Run.

Start by making a fraction  Rise/Run  if the Run is 1, the Slope is a whole number, the Numerator of the fraction (the 1 disappears from the equation).

4 0
3 years ago
What is the volume of a
exis [7]

Answer:

84in

Step-by-step explanation:

4 0
3 years ago
The mean of people in the sample of households of 7th-grade students is 4.3. The mean of people in the sample of households for
tankabanditka [31]
<span>Arithmetic mean is used to describe the sum of values in a dataset divided by the number of values. It s the average of a given dataset which gives us an idea about the average value in a data set. That said, a mean of 4.3 means in the household sample (the average number of students in the data set falls within probably 4 and 4.7 probably). On the other hand,.a mean of 4.5 means there are more 8th graders than 7th graders. An increase of 0.2 from the 4.3 shows that the number of 8th graders slightly surpasses 7th graders. The principal can predict that there are more students in 8th grade because they have a higher average.</span>
3 0
3 years ago
Read 2 more answers
PLZZZ ANSWER!! Answers for points will be reported.
Lisa [10]

Answer:

  • 272.6

Step-by-step explanation:

This is an isosceles triangle with base of 21 and sides of 28.

<u>Area formula</u>

  • A = 1/2bh

<u>Find height:</u>

  • h = \sqrt{28^2 - (21/2)^2}  = \sqrt{673.75} = 25.96

<u>Area:</u>

  • A = 1/2(25.96)(21) = 272.6 (rounded)
7 0
3 years ago
A piece of paper has a length of 12cm and a width of 8cm. What is it's perimeter
Nata [24]
P = 2(12+8)
P = 2(20)
P = 40

answer: <span>perimeter = 40 cm</span>
4 0
3 years ago
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