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Zepler [3.9K]
3 years ago
12

ALOT OF POINTS AND BRAINLYEST IS YOU ANSWER BOTH QUESTIONS :

Mathematics
2 answers:
Dima020 [189]3 years ago
8 0

Step-by-step explanation:

Total students = 3 + 4 + 5 + 3 = 15

Boys = 8

Girls = 7

So total books = 15 x 2 = 30 books

julsineya [31]3 years ago
7 0

Answer:

Step-by-step explanation:

6(3+4)= 42

7(5+3)= 38

42+38= 80

80x2= 160

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I don’t get 15a. The t^5 is confusing me
kondor19780726 [428]

15a is non-exponential because the variable is not in the exponent

Instead, this is a polynomial function. It can also be called a power function as power functions are in the form a*x^b where 'a' and 'b' are fixed numbers.

3 0
3 years ago
Express this number in scientific notation.<br> 31 billion
Nadusha1986 [10]

Answer:

3.1 * 10^10

Step-by-step explanation:

4 0
3 years ago
The perimeter of a rectangular swimming pool is 446 centimeters. The width of the pool is 7 centimeters less than the length of
Akimi4 [234]

Answer:

length = 115 cm

width = 108 cm

Step-by-step explanation:

The perimeter of a rectangular swimming pool is 446 centimeters

LEt L be the length of the pool

The width of the pool is 7 centimeters less than the length of the pool.

width = length - 7

W= L-7

Given perimeter = 446

Perimeter of rectangle = 2(length)+2(width)

446 = 2(L) + 2(W)                    we know W = L-7

446 = 2(L) + 2(L-7)    

446 = 2L + 2L - 14

Add 14 on both sides

460 = 4L

divide by 4 on both sides

L= 115

Length L= 115

Width W = L - 7 = 115 - 7= 108



5 0
3 years ago
Alice's garden produced 17 yellow tomatoes this year. She also grew 18 roma
Sever21 [200]

Answer:

C

Step-by-step explanation:

You add both types of tomatoes together to get the total amount of tomatoes

4 0
3 years ago
If lim(x-&gt;3) f(x)=7, which of the following must be true?
fenix001 [56]
<span>If lim(x->3) f(x)=7, then </span><span>f(3) = 7.</span>
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3 years ago
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