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Vinvika [58]
3 years ago
8

13) Brainliest and 10 + Points!! :) HELP ASAP PLS

Mathematics
1 answer:
Marina CMI [18]3 years ago
4 0

Answer: 2x^2+6x+20=0

Step-by-step explanation:

You might be interested in
Write an equation in standard form given: m= -3/4 and b=5.
Dmitry [639]

Answer:

3x+4y=20

Step-by-step explanation:

The slope-intercept equation would be:

y=mx+b

y=-3/4(x)+5

But standard form is

ax+by=c

We can obtain this by moving the -3/4(x) to the left side

\frac{3x}{4} +y=5

Multiply both sides by 4 to get rid of the fraction

3x+4y=20

5 0
2 years ago
Rocco has a weekly reading schedule, reading for 4.5 hours per day on some days and 3.5 hours per day on the other days. He read
AleksAgata [21]

Answer:

x = days he reads for 4.5 hours = 1 day

y = days he reads for 3.5 hours = 6 days

Step-by-step explanation:

Let

x = days he reads for 4.5 hours

y = days he reads for 3.5 hours

x + y = 7 (1)

4.5x + 3.5y = 25.5 (2)

From (1)

x = 7 - y

Substitute x = 7 - y into (2)

4.5x + 3.5y = 25.5 (2)

4.5(7 - y) + 3.5y = 25.5

31.5 - 4.5y + 3.5y = 25.5

- 4.5y + 3.5y = 25.5 - 31.5

-y = -6

y = 6

Substitute y = 6 into (1)

x + y = 7 (1)

x + 6 = 7

x = 7 - 6

x = 1

x = days he reads for 4.5 hours = 1 day

y = days he reads for 3.5 hours = 6 days

4 0
3 years ago
I don’t pay attention in class
zvonat [6]
Pay attention then lol.
8 0
3 years ago
Read 2 more answers
Can someone please help?
Genrish500 [490]

Answer:

easy. 4

Step-by-step explanation:

5 0
3 years ago
Simplify:<br> –8z + – 7z + 6+ –3+ – 6z
nikdorinn [45]

Answer:

-21z + 3

Step-by-step explanation:

That's the simplified version

6 0
3 years ago
Read 2 more answers
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