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hammer [34]
4 years ago
13

What is the solution to this system of equations?

Mathematics
1 answer:
Semenov [28]4 years ago
4 0

Answer:

D

Step-by-step explanation:

y=2x²+2x+1.... i

y=2x+3......... ii

Equating i and ii,

2x²+2x+1=2x+3

2x²+1-3=0

2x²-2=0

x²-1=0

x=1 or -1.

From ii, if x=1,y=5

If x=-1, y=1.

The points are (-1,1) and (1,5)

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What is the y-intercept
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-2

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Two automobiles start together from the same place and travel along the same route. The first averages 40 miles per hour and the
zheka24 [161]

Answer:

the second car is 75 miles longer than the first car for 5 hours

Step-by-step explanation:

First we need to know the distance each one traveled in 5 hours

the first one travels 40 miles in one hour

1 h = 40 mi

1h * 5 = 40mi * 5

5h = 200 mi

the second one travels 55 miles in one hour

1 h = 55 mi

1h * 5 = 55mi * 5

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3 0
3 years ago
Read 2 more answers
What is the term a8 of the sequence {an} if an equalsa) 2n−1?b) 7?c) 1 + (−1)n?d) −(−2)n?
Degger [83]
The correct question in the attached figure

case A) an=2<span>^(n-1)
for n=8
a8=2</span>^(8-1)-----> a8=2<span>^7----> a8=128

the answer case A) is 
a8=128

case B) an=7
then for n=8
a8=7

the answer case B) is
a8=7

case C) an=1+(-1)</span><span>^n
for n=8
a8=1+(-1)</span><span>^8----> a8=1+1----> a8=2

the answer case C) is
a8=2

case D)an=-(-2)</span><span>^n
for n=8
a8=-(-2)</span><span>^8----> a8=-256

the answer case D) is
a8=-256</span>

5 0
4 years ago
I need help me please!!!
ExtremeBDS [4]
The slope for number one would be negative 3 i think
3 0
3 years ago
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