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Igoryamba
3 years ago
12

-4x+ 8x2 – 2x3 + 5 this is algebra

Mathematics
2 answers:
Serggg [28]3 years ago
7 0

Answer:

-65

Step-by-step explanation:

use Khan academy it's very helpful

denis23 [38]3 years ago
7 0

Answer:

14x+5

Step-by-step explanation:

4x+8x2-2x3+5

⬇️Simplify (for example 8x x 2 = 16x)

4x+16x-6x+5

⬇️ Collect like terms (bold)

20x-6x+5

⬇️

14x+5

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If 3/15 is equivalent to 45/n. find n
Radda [10]

Answer:

n = 225

Step-by-step explanation:

Multiply 15 by 15

3 0
3 years ago
Read 2 more answers
Need help on this one please answer asap
Oliga [24]
First find the hourly rate by dividing $187 by 11 hours. That yields $11 per hour. Now multiple the $11/hour rate by 8 hours of work resulting in $88.
8 0
3 years ago
What is the equation of the line that passes through the point (5,3) and has a slope of -1/5 ?
deff fn [24]

Answer: y=-1/5x+4

Step-by-step explanation: use the equation y=mx+b (x,y)->(5,3) 5 is an x value and 3 is a y value so you want to plug in these values into the equation. 3=-1/5(5)+b. We already know our slope so just plug it into m. Now multiply -1/5 and 5 which is -1. 3=-1+b you want to isolate b so you can find the intercept. Add one to both sides so it cancels out. 4=b we found our y-intercept so we can write the equation now. y=-1/5x+4

6 0
2 years ago
Let f(x) = ............
34kurt

Answer:

So first lets find g(-1)

so we plug in the answers:

-2 * -1 ^2 -4

-2*1-4 = -2-4 =

-6

Now lets solve for f(-2)

-2^2-3

4-3=1

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Im getting answer of 15 but it shows -15 or something, so I dont know if I got it wrong or if its like a dash then the answer.

3 0
3 years ago
Which is smaller,two-thirds of 27 or two-fifths of 20?
shtirl [24]
" of " means multiply

2/3(27) = 54/3 = 18
2/5(20) = 40/5 = 8

so 2/5 of 20 is smaller
7 0
3 years ago
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