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Olenka [21]
4 years ago
12

50 points please hELP URGENT

Mathematics
2 answers:
tatuchka [14]4 years ago
7 0

Answer:

The 1st problem is C. 212.79 The 2nd problem is 1 3/5 The 3rd problem is 3.68

Step-by-step explanation:

Explanation for problem 1 l times w = area

Explanation for problem 2 change to decimals multiply w times l change back to fraction

Explanation for problem 3 multiply l times w

UkoKoshka [18]4 years ago
4 0

Answer:

212.79

Step-by-step explanation:

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Can anyone help pls two more
Andreas93 [3]

Answer:

I'll explain below, just follow the directions. I can't directly draw it.

Step-by-step explanation:

find the length and the width of a rectangle whose perimeter is 18 ft

2L + 2W = 18

simplify, divide by 2

L + W = 9

L = (9-W)

:

whose area is 20 square feet

L*W = 20

Replace L with (9-W)

 

W(9-W) = 20

-W^2 + 9W - 20 = 0

Multiply by -1, easier to factor

W^2 - 9W + 20

Factors to

(W-4)(W-5) = 0

Two solutions

W = 4 ft is width, then 5 ft is the Length

and

W = 5 ft is the width, then 4 ft

5 0
3 years ago
Plsssss help me this is urgent.
katrin2010 [14]

Tank A has a greater volume.

5 0
3 years ago
What is the coefficient
Vlada [557]

Answer:

B

Step-by-step explanation:

Using the Pascal's triangle

Pertaining to the 8th term the coefficients are;

1, 8, 28, 56, 70, 56,28, 8 and 1 in that order

Expanding this,

the coefficient of the term x^7y is 8

3 0
3 years ago
Read 2 more answers
How many 3/4s are in 3 2/4
MArishka [77]

Answer:

the answer is 3

Step-by-step explanation:

First change the whole number (3) to quaters or fraction

3x \frac{4}{4} = \frac{12}{4}

Now, add

\frac{2}{4} + \frac{12}{4} = \frac{14}{4}   Since, we have the same common denominator

now divide

14÷4 =3.5 = 3\frac{2}{4}

Therefore, there are 3 of 3/4 with a remainder of  \frac{2}{4} in 3 \frac{2}{4}.

7 0
3 years ago
F(r) = 3.14r2 . What is f(3)?
lbvjy [14]

Answer:

The value of f(3) = 28.26

Step-by-step explanation:

You have to do is to substitute r = 3 into the function :

f(r) = 3.14 \times  {r}^{2}

f(3) = 3.14 \times  {3}^{2}

f(3) = 3.14 \times 9

f(3) = 28.26

4 0
3 years ago
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