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Harrizon [31]
3 years ago
13

9r+7+3(8p+7r)+15 simplify the expression

Mathematics
1 answer:
Lynna [10]3 years ago
5 0
30 r + 22 + 24 p .....
You might be interested in
(x-1)(x-3)(x+5)(x+7)=297
mihalych1998 [28]

First simplify the expression into polynomial form,

(x-1)(x-3)(x+5)(x+7)=297

x^4+8x^3-10x^2-104x+105=297

x^4+8x^3-10x^2-104x-192=0

Now factor into,

(x-4)(x+8)(x^2+4x+6)=0

Which means the solutions are,

x-4=0\implies\boxed{x_1=4}

x+8=0\implies\boxed{x_2=-8}

and then two complex solutions because determinant of the third factor D\lt0,

x^2+4x+6=0

x^2+4x+4=-2

(x+2)^2=-2\implies\boxed{x_3=i\sqrt{2}-2},\boxed{x_4=-i\sqrt{2}-2}

Hope this helps :)

5 0
3 years ago
Read 2 more answers
Randi earned a profit of $60.00 on her last snow shoveling and salting job. Write an equation that can be solved to find how man
notka56 [123]

Answer:

Profit earned by Randi on her last snow shoveling and salting job= $ 60

Let number of hours spent by Randi on that day while working as a shoveler and salter = x hours

Writing the statement in terms of inequality

→ Number of hours worked= Amount of profit earned

→ x=60

→If profit is less than $60.00, then Number of hours will be less.

→If Profit is more i.e greater than $60.00, Number of hours will be more.




4 0
3 years ago
How does the graph of g(x) =
IRINA_888 [86]

Answer:

g(x) is shifted 5 units right and 2 units up from f(x).

Step-by-step explanation:

5 0
3 years ago
Im just confused, pls help
Kobotan [32]

Answer: where’s the question

4 0
2 years ago
Read 2 more answers
For the graph on the right, find the Average Rate of Change from 7 to 60 minutes?
Tasya [4]

Answer:

The average rate of change from 7 to 60 minutes is 0.36 miles per minute.

Step-by-step explanation:

at x₁ = 7, f(x₁) = 8

at x₂ = 60,  f(x₂) = 27

Using the formula to determine the average rate of change at which the total cost increases will be:

Average rate = [f(x₂) - f(x₁)] / [ x₂ - x₁]  

                     = [27 - 8] / [60-7]  

                     = 19 / 53

                     = 0.36

Therefore, the average rate of change from 7 to 60 minutes is 0.36 miles per minute.

7 0
2 years ago
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