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astraxan [27]
2 years ago
13

Me ajuda ai ....10x-1=2x^2+7

Mathematics
1 answer:
garik1379 [7]2 years ago
3 0

Answer:

x = 1 and/or x = 4

Step-by-step explanation:

You can solve by factoring, using the quadratic formula, or completing the square.

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In planning her​ retirement, Liza deposits some money at 4​% ​interest, with twice as much deposited at 4.5​%. Find the amount d
natima [27]

She deposited $16,000 at 4% and $32,000 at 4.5%

3 0
2 years ago
Answers <br> |x-3|<br> -|x+3|<br> -|x-3|<br> |x|+3
Jobisdone [24]
-|x+3|

its a positive 3 because you move it the opposite way im pretty sure
and it’s negative because it’s pointed down
4 0
3 years ago
Read 2 more answers
A computer randomly puts a point inside the rectangle. What is the probability that the point lands in triangle T?
Serjik [45]

Answer:

87.5%

Step-by-step explanation:

The area of the entire rectangle is 8 by 6,

8x6=48 so the area is 48 units^2.

The area of the triangle is A=1/2bh

A=1/2(2)(6)

A=1(6)

A=6 units^2

6/48=0.125

0.125=12.5%

You need to find the percent it will not land in the triangle, so subtract 12.5 from 100.

100-12.5=87.5

There is an 87.5% chance it will not land in the triangle

3 0
3 years ago
Simplify.
ohaa [14]

your answer is 15m+6n

6 0
3 years ago
Read 2 more answers
Write the equation of the line passing through (-3, 4) and normal to -2x + 7y = -3. (Note: normal means perpendicular)
MArishka [77]

Answer:

The answer to your question is     y = -7/2x -13/2

Step-by-step explanation:

Point = (-3, 4)

Line   -2x + 7y = -3

Process

1.- Solve equation for y to find the slope of the perpendicular line

                  7y = 2x - 3

                    y = 2/7 x - 3/7

slope = 2/7

Slope of the perpendicular line = -7/2

2.- Find the equation of the new line

                   y - y1 = m(x - x1)

                   y - 4 = -7/2(x + 3)

                   y - 4 = -7/2x - 21/2

                   y = -7/2x - 21/2 + 4

                   y = -7/2x -21/2 + 8/2

3.- Result

                   y = -7/2x -13/2

8 0
3 years ago
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