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scoray [572]
3 years ago
13

Chapter 1: Quadrati

Mathematics
1 answer:
Bad White [126]3 years ago
8 0

Answer:

mid point of AB (0.5 , 0)

Step-by-step explanation:

2x + 5y = 1      2x = 1 - 5y

y = 2xy+ 5 = (1 - 5y)*y + 5 = y - 5y² + 5

y-y = y - 5y² + 5 - y = - 5y² + 5

0 = - 5y² + 5

5y² = 5

y² = 1

y = 1 or y = -1

if y = 1       x = 1/2 (1 - 5) = -2   .... point A (-2 , 1)

if y = -1      x = 1/2 (1 + 5) = 3   ..... point B (3 , -1)

mid point of AB (x' , y') :  x' = 1/2 (x₁ + x₂) = 1/2 (-2 + 3) = 1/2

                                        y' =  1/2 (y₁ + y₂) = 1/2 (-1 + 1) = 0    

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Express the product of 2xsquared+6x-8 and x+3 in standard form
postnew [5]

Answer:

2x^3+12x^2+10x-24

Step-by-step explanation:

(2x^2+6x-8)(x+3)

2x^3+6x^2-8x+6x^2+18x-24

2x^3+6x^2+6x^2-8x+18x-24

2x^3+12x^2+10x-24

4 0
3 years ago
2m divided by 3/9; m = 3/2
11Alexandr11 [23.1K]

Answer:

Not completely sure but I think 9

Step-by-step explanation:

In order to solve this equation, you would need to first multiply m by 2 to get 2 m. 3/2=1.5; 1.5*2 =3. 3/9 simplifies to 1/3

Then you would want to solve. So, you would need to divide 2 by 1/3 which would give you 9.

8 0
3 years ago
What is the slope that passes through the points (-5,0) and (-3,1)
tangare [24]

Answer:

1/2

Step-by-step explanation:

When given two points, we can find the slope by

m = (y2-y1)/(x2-x1)

    = (1-0)/(-3- -5)

     = (1-0) / (-3+5)

      = 1/2

7 0
3 years ago
Read 2 more answers
Carl offered to pay jake $0.25 a square foot to paint his fence. The fence measures 109 feet long and 7 feet wide what is the to
Scorpion4ik [409]

Answer:

Part 1) The total square footage of the fence is 763\ ft^{2}

Part 2) \$190.75

Step-by-step explanation:

Part 1) what is the total square footage of the fence ?

we know that

The area of the fence is equal to

A=LW

substitute the values

A=(109)(7)=763\ ft^{2}

Part 2) How much will Jake get paid

Using proportion

\frac{0.25}{1}\frac{\$}{ft^{2}}=\frac{x}{763}\frac{\$}{ft^{2}}\\ \\x=763*0.25\\ \\x=\$190.75

6 0
3 years ago
Can someone help me with these?​
Jet001 [13]
48 is the correct answer because your going to only do the square
4 0
3 years ago
Read 2 more answers
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