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Evgesh-ka [11]
2 years ago
8

Please help me with both problems thank you so much!!

Mathematics
2 answers:
motikmotik2 years ago
6 0
The one on the left is -5/6
The one on the right is 1/21
ohaa [14]2 years ago
5 0
E. -5/6
F. 1/21
That’s the answer
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Use (r,16) to solve y=2x-4
damaskus [11]
(x,y) = (r,16)

With this knowledge, plug in r for x, and 16 for y

16 = 2(r) - 4

Isolate the r, add 4 to both sides

16 (+4) = 2r - 4 (+4)

20 = 2r

Divide 2 from both sides

20/2 = 2r/2

r = 20/2

r = 10

hope this helps
4 0
3 years ago
How many times does the equation f(x)=2x^2+9x-5 intersect the x-axis
Komok [63]

Answer:

2

Step-by-step explanation:

f(x)=2x^2+9x-5

When we are find how many times it intersects the x axis, we are finding the zero's. Set the equation equal to zero

0=2x^2+9x-5

Factor the equation

0 = (2x+1) (x-5)

2*1

1*-5 = -5

2*-5 +1*1 = -9

This checks for the first last and middle terms so we factored correctly

Then using the zero product property

2x+1 = 0 and x-5 =0

2x = -1    x=5

x = -1/2  and x=5

This function crosses the x axis 2 times

8 0
3 years ago
Another geometry question♥♥
storchak [24]
Set the 2x - 1 equal to 9 then work backwards. 2x - 1 = 9 Nine minus one is eight divided by two is four. X = 4
4 0
3 years ago
Mark earns $300 per month plus an additional 2% on all of his sales. Last month he sold $59,000. What was Mark's income for the
KatRina [158]

Answer:

59,000 times 0.02= $1,180 commission plus $300 = $1480

In order to get your answer you have to change the percent into a decimal and it’s commission so you have to add.

7 0
3 years ago
An acorn is falling from 13 feet in the air. If it descends 4.8 feet every second, write and solve an equation to determine how
podryga [215]

Answer:

2.5

Step-by-step explanation:

12/4.8

5 0
4 years ago
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