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3 years ago

Please answer this! I'll mark brainliest! <3

Mathematics

1 answer:

babymother [125]3 years ago

7 0

Answer:15

Step-by-step explanation:The formula for volume of a square pyramid is A^2 * h/3 with A being base side length and h being height, so just plug in 3 for a and 5 for h, getting you (3)^2 * 5/3, then 9* (5/3) then 45/3 then 15

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Fill in the blank to make the expression a perfect square.. . u^2-16u+?

hram777 [196]

U² - 16 u + 64 = ( u - 8 )²
because: A² - 2 A B + B² = ( A - B )²
Answer: 64

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3 years ago

A cube with faces numbered 1 through 6 is rolled 75 times and the results are given in the table below

iren [92.7K]

Answer:

Step-by-step explanation:

where are the results?

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3 years ago

Sierra left $4.50 as a tip for a waiter. THis was 18% of the bull before the tip, How much was her total bill before the tip?

andreyandreev [35.5K]

let's say the bill without the tip is "x" amount, so that'd be the 100% of the bill, but we also know that 4.50 is the 18% of "x".

so if 4.50 is the 18% of "x", how much is "x"?

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 4.50&18\\ x&100 \end{array}\implies \cfrac{4.5}{x}=\cfrac{18}{100}\implies 450=18x \\\\\\ \cfrac{450}{18}=x\implies 25=x$

4 0

3 years ago

Which statement is true about the circumference of a circle? The circumference is equal to the radius of the circle. The circumf

Irina18 [472]

<h3>The true statement about circumference of a circle is: circumference is found by multiplying Pi by the diameter</h3>

Solution:

The circumference of a circle is given as:

$\text{circumference } = 2 \pi r$

Where,

"r" is the radius of circle

We know that,

$diameter = 2 \times radius\\\\d = 2 \times r\\\\d = 2r$

Thus the circumference can also written as:

$\text{circumference } = 2 \pi r\\\\\text{circumference } = \pi \times d$

Thus, the circumference is found by multiplying Pi by the diameter is correct statement

7 0

3 years ago

Read 2 more answers

assume the initial velocity is 60 feet/second. what initial angle will you need tp ensure that the horizontal distance will be e

DiKsa [7]

This is a problem pertaining projectile motion wherein the parameter we're finding is the angle of inclination denoted as theta. The formula to be used is the range:

Range = v^2*sin(2*theta)*(1/g)
100 = (60^2) * sin(2*theta) * (1/32.2)
theta=31.7°

I hope I was able to help you. Have a good day!

8 0

3 years ago