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3 years ago

Can somebody plz help answer these questions CORRECTLY thanks!!

Mathematics

1 answer:

Shalnov [3]3 years ago

6 0

Answer:

a)72% b)75%

Step-by-step explanation:

I’m not really sure bout a. If it changed to 50, I kept the amount she answered correct but out of 50-(36/50) to get the percent. b) is the 36 she got correct out of the 48 she tried to do-36/48 x 100

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A rectangle has a length of x and a width of 5x^3+4-x^2. What is the polynomial that models the perimeter of the rectangle

sveticcg [70]

Answer:

$L= x$

And the width for this case is:

$W= 5x^3 +4 -x^2$

And we know that the perimeter is given by:

$P= 2L +2W$

And replacing we got:

$P(x) = 2x +2(5x^3 +4 -x^2)= 2x +10x^3 +8 -2x^2$

And symplifying we got:

$P(x)= 10x^3 -2x^2 +2x+8$

Step-by-step explanation:

For this problem we know that the lenght of the rectangle is given by:

$L= x$

And the width for this case is:

$W= 5x^3 +4 -x^2$

And we know that the perimeter is given by:

$P= 2L +2W$

And replacing we got:

$P(x) = 2x +2(5x^3 +4 -x^2)= 2x +10x^3 +8 -2x^2$

And symplifying we got:

$P(x)= 10x^3 -2x^2 +2x+8$

8 0

3 years ago

Help plz (A) 4.00 (B) 0.25 (C) 1.00 (D)0.10

Mademuasel [1]

Answer:

B. 0.25

Step-by-step explanation:

The constant proportionality is 0.25 because the total cost is 0.25 or 1/4 of the number of tickets sold.

8 0

3 years ago

Read 2 more answers

Please help me. Thanks

OlgaM077 [116]

2x+50 and 7x are "vertical angles" and are thus equal to one another.

2x+50 = 7x

50 = 5x

x=10 (answer) You should find the actual angles.

They are 2(10)+50 = 70 and
7(10) = 70

4 0

4 years ago

Which point represents the unit rate?

Flauer [41]

Answer:

Hey it’s C

Step-by-step explanation:

7 0

3 years ago

PLSSS HELPPPP 15 coins of dimes and nickels make up $1.00. How many dimes and nickels are there?

Sidana [21]

5 dimes 10 nickels is the answer

5 0

2 years ago