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3 years ago

Answer pleaseeeee?:)

Mathematics

1 answer:

gtnhenbr [62]3 years ago

4 0

If I were to tell a kid how to use the formula (the SA of a pyramid it looks like):

First, find the area of the base of the figure, using length times width.

Next, find the perimeter of the base by adding up the length of each side of the base.

Multiply the perimeter of the base by the slant height of the figure, which is the line on the side of the figure that is diagonal.

Divide the answer you got from multiplying the perimeter of the base times the slant height of the base by 2.

Now add up the area of the base of the figure with the answer you just got by dividing the perimeter of the base times the slant height by 2.

That is how you use the formula: SA = B + 1/2(P · l)

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Write the equation of the line

Neporo4naja [7]

Answer:

y=-3/2x+4

Step-by-step explanation:

line is negative, going 3 over 2. y intercept is 4.

3 0

3 years ago

Use the standard deviation values of the two samples to find the standard deviation of the sample mean differences.

larisa86 [58]

The standard deviation of the sample mean differences is 4.854

<h3>How to determine the standard deviation of the sample mean differences?</h3>

The table of values is given as:

<u>Sample Standard deviation</u>

Red box 3.868

Blue box 2.933

The standard deviation of the sample mean differences is calculated using:

$\sigma = \sqrt{\sigma_1^2 + \sigma_2^2}$

This gives

$\sigma = \sqrt{3.868^2 + 2.933^2}$

Evaluate the expression

$\sigma = 4.854$

Also, the table of value do not give any information regarding the sample size.

This means that the sample size of the session regarding the number of people would purchase the red box and the blue box are unknown

Hence, the standard deviation of the sample mean differences is 4.854

Read more about standard deviation at:

brainly.com/question/15858152

#SPJ1

8 0

2 years ago

sue buys a shirt at a 30% markup. It costs her 31.20 before tax. What was the price of the shirt before the markup?

IRINA_888 [86]

$[Hello,BrainlyUser]$

Answer:

$21.84

Step-by-step explanation:

.30

31.20 * .30=9.36

31.20 - 9.36 =21.84

The price of the shirt before the markup is $21.84.

[CloudBreeze]

6 0

2 years ago

Read 2 more answers

If PQ bisects Angle RPS and measure of angle RPS = 120°, find p and measure of angle RPQ.

Ghella [55]

Answer:

p = 6; RPQ = 60 degrees

Step-by-step explanation:

Because RPS is 120 degrees and it is bisected by PQ (cut into 2 equal parts), we can determine that both sides are 60 degrees. Set the expression 5p+30 equal to 60 to find the value of p.

5p + 30 = 60

5p = 30

p = 6

So now you have determined that p = 6, and the measure of RPQ is 60 degrees.

Hope this helped!

8 0

3 years ago

Read 2 more answers

What is the surface area of the square pyramid represented by the net below?

4vir4ik [10]

Answer:

64 cm^2

Step-by-step explanation:

Square: 4*4 = 16

Triangles: 4((4*6)/2))

= 4(24/2)

= 4(12)

= 48

Add the square and triangles together

= 16 + 48

= 64

The total will be 64 cm^2

6 0

4 years ago