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Xelga [282]
3 years ago
11

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Solve 2s^3 - 4r^2 = if

r = 1 and s = 5
Mathematics
1 answer:
DENIUS [597]3 years ago
4 0

Answer:

10*10=100x100=1,000-4=996

Step-by-step explanation:

hope this works

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Solve x^2-8x-9=0 using completing the square (show the work)
Elden [556K]

Answer: x=9,-1

Step-by-step explanation:

First, we are gonna start out with finding two numbers that multiply to equal -9 and add up to equal -8

Those numbers would be -9 & 1

-9+1=-8

-9x1=-9

Now we have

(x-9)(x+1)

x-9=0   x+1=0

 +9 +9   -1  -1

x=9      x=-1

3 0
3 years ago
Alguien me puede ayudar en este problema plis
Nat2105 [25]

Answer:

3

Step-by-step explanation:

6 0
2 years ago
!!!!!please help!!!!!!!!
lara31 [8.8K]
From Plato
30e-0.12t less than or equal to M
40e-0.18t less than or equal to M
Step-by-step explanation:
It is given that compound A decays at a rate of 12% per week, and compound B decays at a rate of 18% per week. Since the rates represent decay, the r-value is negative. A decay rate of 12% is represented by an r-value of -0.12, and a decay rate of 18% is represented by an r-value of -0.18.
The initial amount of compound A is 30 grams and the initial amount of compound B is 40 grams. Substitute the initial amounts of each compound and their respective decay rates into the system of inequalities.
The following system of inequalities can be used to determine when the remaining mass of the two compounds, M, will be the same, after t weeks.
3 0
3 years ago
Which expression is equivalent to r^9/r^3?<br> O r^3<br> O r^6<br> O r^12<br> O r^27
valkas [14]

Answer:

r^12 no r^6

Step-by-step explanation:

I was wrong it is r^6 r−9(−3) r−9+3=r−6

  • r-6 becomes 1 over r6

5 0
2 years ago
Read 2 more answers
What is the slope of the line parallel to the line y = -5/3x + 5?
Aleksandr-060686 [28]

Answer:

C

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{5}{3} x + 5 ← is in slope- intercept form

with slope m = - \frac{5}{3}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular } = - \frac{1}{m} = - \frac{1}{-\frac{5}{3} } = \frac{3}{5}

3 0
3 years ago
Read 2 more answers
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