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2 years ago

Geometry question;please help!

Mathematics

1 answer:

Natalka [10]2 years ago

6 0

The conditional relative frequencies based on the row totals shown below:

<h3>What relative frequencies?</h3>

A relative frequency indicates how often a specific kind of event occurs within the total number of observations.

Given table:

YES NO Total

students 15 18 33

Teachers 28 14 42

Total 43 32 75

To obtain the relative frequency table for the above data, we divide each cell of the table by 75 (the overall total).

Therefore, the relative frequency table is given below:

YES NO Total

students 0.2 0.24 0.44

Teachers 0.374 0.186 0.56

Total 0.574 0.426 1

Learn more about relative frequencies:

brainly.com/question/3752123

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Brian tied a 136-foot rope around the perimeter of his rectangular house. He knows that the length of the house is 10 feet less

STALIN [3.7K]

Answer:

length 42 cm and width 26 cm

Step-by-step explanation:

Given

Since Brian tied 136 foot rope around the perimeter , hence perimeter of house is 136 foot.

Given that shape of house is rectangular.

formula to calculate perimeter of rectangle can be used which is 2*(L+B)

where L is length of rectangle and B width of rectangle

Let the L and B be length of rectangular side of house

According to question

length of house is 10 feet less than twice the width of house

mathematically it can be represented as

L = 2*B - 10 --->eq. 1

Perimeter of house = 136 feet

using formula of Perimeter of rectangle

136 = 2*(L+B)

substituting the value of length in terms of width from eq. 1 in formula of perimeter

=> 136/2 = 2*B - 10 + B (2*B+ B = 3B)

=> 68 = 3*B - 10

=> 78 = 3*B

B = 78/3 = 26

Therefore B which is width = 26 CM

length = 2*B - 10= 26*2 - 10 = 52-10=42

length of house = 42 cm

Hence dimension of Brian's house is length 42 cm and width 26 cm

5 0

3 years ago

Please help asap!<br><br> Use the difference quotient to find the derivative of f(x)= 4/x at x=3.

saveliy_v [14]

F (x)= 4/x

F(3)= 4/3

4/3 I think

4 0

4 years ago

Read 2 more answers

20 is what percent of 80? Choose the equation to solve the problem

Mila [183]

Answer:

Step-by-step explanation:

5 0

3 years ago

• Lawson already has $60 in his wallet but needs a total of at least $500 for his holiday. He gets

nalin [4]

Answer:

Step-by-step explanation:

500-60=440

440/30=14.66666667

simplify 14.66666667= 15

4 0

4 years ago

What is 5 1/2 of 60%

EleoNora [17]

You mean 60%of 5 1/2? that makes more sense...

i would do it like this:

$\frac{60}{100}* 5\frac{1}{2}$

(60% is the same as $\frac{60}{100}$

$5\frac{1}{2}=\frac{11}{2}$

(so that there is no confusion, i've put it into an improper fraction

now we can multiply:
$\frac{60}{100}* \frac{11}{2}=$

$\frac{6}{10}* \frac{11}{2}=$

$\frac{3}{5}* \frac{1}{2}=$

$\frac{3*11}{10}=$

$\frac{33}{10}=$

which is 3.3.

so 60% of 5 and a half is 3.3.

6 0

3 years ago