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vitfil [10]
3 years ago
10

Can you please help​

Mathematics
1 answer:
kirza4 [7]3 years ago
3 0
C) 5x^2-3x+9 is the answer
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a rectangular laboratory has a length equal to one and a half times its width and a perimeter of 40m. find its length and width
tresset_1 [31]
L=1.5w
P=l+w
40=2.5 w
W=16
L=1.5(16) =24

Length is 24
Width is 16
8 0
2 years ago
Read 2 more answers
a tune up automotive facility marks up its parts by 45%. suppose that the facility charges its customers 2.32 for each spark plu
V125BC [204]

Answer:

$1.6

Step-by-step explanation:

The price of $2.32 already includes the 45% mark up hence taking the original cost to be x, it means the cost of $2.32 is 145% of the original cost

Using the concept of cross multiplication we say that if

1.45 is equivalent to $2.32

1 is equivalent to x

x=\frac {2.32}{1.45}=1.6

Therefore, the company incurs $1.6 for each plug

4 0
3 years ago
One dollar and eighty-seven cents. That was all. And sixty cents of it was in pennies."
gladu [14]
To model the scenario, the following will be the numerical coefficients for the variables: 0.05 for nickels (5 cents), 0.10 for dime (10 cents) and 0.25 for quaters (25 cents). Thus the model/equation is, $1.87 = 0.25q + 0.10d + 0.05n + 60.
3 0
3 years ago
PLEASE GUYS IM DESPRATE
VikaD [51]

Answer:

Step-by-step explanation:

Putting values in the equation

-(-3)-(2)3+ (-2) (3)

3 - 8 + (- 6)

-5 - 6

= - 11

5 0
3 years ago
Read 2 more answers
Answer question (picture below) and show work please
antiseptic1488 [7]

Answer:

A(x)=7x^2-2x+10

Step-by-step explanation:

Long Division

The polynomial long division implies the sequential division of each term of the dividend polynomial by the terms of the divisor polynomial. The procedure is a well-know sequence of steps from which there are two outputs: the quotient and the remainder.

We have two mathematical models, one for the total number of visitors who went to a theme park:

F(x)=126x^3+279x^2+90x+450

The other for the number of shows played at the theme park in the same period

G(x)=18x+45

Where x is the number of days since October 1. We are required to find the expression for the average number of visitors per show. It comes by dividing F(x) by G(x). We must perform a long division as shown  below.

The average number of visitors per show is

A(x)=7x^2-2x+10

For example, day 5

A(5)=7\ 5^2-2(5)+10=175

There were 175 visitors per show (on average)

7 0
4 years ago
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