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morpeh [17]
3 years ago
15

Will mark brainliest if right

Mathematics
1 answer:
azamat3 years ago
8 0

Answer: 5x^2 + 3x + 1

Step-by-step explanation:

1.) Put the two equations together into an addition problem.

<em>3x^2 + 4x + 2x^2 - x + 1</em>

2.) Combine like terms.

<em>3x^2 + 2x^2 = 5x^2</em>

<em>4x - x = 3x</em>

<em>1 = 1</em>

3.) Order the like terms together.

<em>5x^2 + 3x + 1</em>

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How many different five digit members can be formed from the digits 5, 6, 7, 8 and 9 if digits can be repeated? If digits cannot
Dafna11 [192]

Answer:

Solution given:

5,6,7,8,9,

When repeated:

it has

5 ways for each

different five digit members can be formed from the digits:5*5*5*5*5=<u>3125</u>

When not repeated:

it has

5 ways for 1st

4 ways for 2nd

3 ways for 3rd

2 ways for 4th

1 ways for 5th

different five digit members can be formed from the digits:5*4*3*2*1=<u>120</u>

6 0
3 years ago
A road crew can repave 1/56 miles of road each hour. They must repave a road that is 7/8 miles long. How long will it take the c
elixir [45]

7/8 miles = 49 / 56 miles so it will take the road crew 49 hours to repave the road.

6 0
3 years ago
Which shows how to solve the equation 3/4x=6 for x in one step?
a_sh-v [17]

Well going off what I know (you don't have the equations up)

You have to isolate x

3/4x = 6

(4) 3/4x = 6 *multiplying by 4 cancels the fraction.

3x = 24

Divide by 3

X = 6

7 0
3 years ago
Read 2 more answers
Hello! So, Given the equation y = 2x - 8, what is the slope and the y-intercept? Please help with a good explanation of how you
elena55 [62]

Answer:

m = 2 and b = -8.

Step-by-step explanation:

One of the most commonly used equations of straight lines is y = mx + b, where m is the slope and b is the y-intercept.

Comparing the given y = 2x - 8 to y = mx + b, we see that m = 2 and b = -8.

3 0
4 years ago
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Find the slope and y intercept of the line whose equation is -6x+y=-4
Ad libitum [116K]
For
ax+by=c
slope=-a/b

we have
-6x+1y=-4
slope=-6/-1=6
slope is 6

yint is where x=0

-6(0)+y=-4
0+y=-4
y=-4
yint is at y=-4 or (0,-4)
8 0
3 years ago
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