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Artyom0805 [142]
3 years ago
9

I don’t understand can someone help me

Mathematics
1 answer:
Dovator [93]3 years ago
8 0
72 sq in times 9 is 648 sq in
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I'll give you more points but you have to answer all the parts to the question. I need this plsssss ty lol. Show all work too pl
alexira [117]

Answer:

a) 34mi

b) 10mi

c) 44mi

d) by Calculating the amount of miles it would take John to go to school plus the amount of miles it would take Sara to go to school. Then add the sum of the amount of miles it took for both to go to school.

Step-by-step explanation:

a) explanation:

a^{2} +b^2=c^2

16^2+30^2=c^2

256 + 900 = c^2

c^2=1156

\sqrt{1156}=34mi

b) explanation:

a^{2} +b^2=c^2

6^2+8^2=c^2

36+64=c^2

c^2=100

\sqrt{100} =10mi

c) explanation: we already have all the data from John's house to Sara's House.

John's House to Sara's House = John's House to School + Sara's House to School.

Sara's House to School (Question #1) = 34mi

John's House to School (Question #2) = 10mi

34(mi) + 10(mi) = 44(mi)

d) explanation: explanation is on the answer

7 0
3 years ago
A television newscaster from a 24-hour news station wants to estimate the number of hours per day its viewers watch
topjm [15]

Answer:

This isn't the best worded question but from what I understand a larger sample size decreases the margin of error. If he would like a more accurate answer a larger sample size of the viewers will give more accurate answers.

Step-by-step explanation:

4 0
2 years ago
A regular fish tank is 18 in wide 12 in deep and 24 in tall what is the volume of that fish tank​
Lady bird [3.3K]

Answer:

(4,5 feet)³=4,5³ cubic feet

Step-by-step explanation:

6 0
3 years ago
Please pick one of the options.
olchik [2.2K]

9880 different possibilities are there in Sally's new combination option second 9880 is correct.

<h3>What is permutation and combination?</h3>

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

We have:

Total unique numbers consists in a Sally locker = 3

From the digits 0 to 39

Total numbers = 40

Apply combination formula:

= C(40, 3)

= 40!/(3!37!)

= 9880

Thus, 9880 different possibilities are there in Sally's new combination option second 9880 is correct.

Learn more about permutation and combination here:

brainly.com/question/2295036

#SPJ1

6 0
1 year ago
Perform the operation (9x^2+6x-7)+(-9x-5)
asambeis [7]

Answer:

9x^{2}-3x-12

9x^{2}+6x-7-9x-5

(Group liked terms)

9x^{2}+6x-9x-7-5

( subtract the numbers ) -7-5= -12

9x^{2}+6x-9x-12

( add similar elements ) 6x-9x=-3x

9x^{2}-3x-12

Step-by-step explanation:

8 0
2 years ago
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