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3 years ago

Need help bad !!!!!!!!!!!!

Mathematics

2 answers:

Sergio [31]3 years ago

6 0

Answer:

Step-by-step explanation:

Using the midpoint formula

midpoint = [ $\frac{1}{2}$ ( $x_{1}$ + $x_{2}$ ), $\frac{1}{2}$ ( $y_{1}$ + $y_{2}$ ) ]

with (x₁, y₁ ) = (- 2, 4) and (x₂, y₂ ) = (6, - 4)

midpoint = [ $\frac{1}{2}$ (- 2 + 6), $\frac{1}{2}$ (4 - 4) ]

= (2, 0) → B

Nonamiya [84]3 years ago

4 0

There are 2 order pairs there (6,-4),(-2,4)
find the midpoint using the formula

(x1+x2)/2 , (y1+y2)/2
x=6 and -2
y=-4 and 4

(6+2)/2 , (-4+4)/2
8/2 ,0/2
the midpoint is (4,0) A

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Susannah has a high-yield savings account into which she deposits $140 each month. At the beginning of the year, Susannah's acco

motikmotik

Answer:

Her account balance will be $2,080 at the end of the year

Step-by-step explanation:

Let

y ----> Susannah's account balance

x ---> is the amount of time in months

we have

$y=140x+400$

This is a linear equation in slope intercept form

where

The slope or unit rate is equal to

$m=\$140\ per\ month$

The y-intercept or initial value is equal to

$b=\$400$

Remember that

One year is equal to 12 months

For x=12 months

substitute in the linear equation

$y=140(12)+400=\$2,080$

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3 years ago

Show all work to solve by factoring 3x^2 − x − 2 = 0.

shtirl [24]

Answer:

The solutions are x=1 and x=-2/3

Step-by-step explanation:

we have

$3x^{2}-x-2=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$3x^{2}-x=2$

Factor the leading coefficient

$3(x^{2}-(1/3)x)=2$

Complete the square. Remember to balance the equation by adding the same constants to each side

$3(x^{2}-(1/3)x+(1/36))=2+(1/12)$

$3(x^{2}-(1/3)x+(1/36))=25/12$

Rewrite as perfect squares

$3(x-(1/6))^{2}=25/12$

$(x-(1/6))^{2}=25/36$

square root both sides

$(x-(1/6))=(+/-)(5/6)$

$x=(1/6)(+/-)(5/6)$

$x=(1/6)(+)(5/6)=1$

$x=(1/6)(-)(5/6)=-2/3$

4 0

3 years ago

Pls helpppppppppppppp

dexar [7]

Answer:

-1/36

Step-by-step explanation:

-5/18 - ( -1/4)

Subtracting a negative is like adding

-5/18 + 1/4

Getting a common denominator of 36

-5/18 *2/2 + 1/4 *9/9

-10/36 + 9/36

-1/36

5 0

3 years ago

What is the foil method of (X+3)(x-4)

solong [7]

Answer:

(x-1) x-12

Step-by-step explanation:

Step 1 : Multiply first term of the first bracket to the first term of the other bracket

Step 2 : Then multiply the first term of the first bracket to the last term of the second bracket.

Step 3 : Now come to the second term of first bracket, multiply second term with first term of second bracket.

Step 4 : Finally multiply last term of first bracket with the last term of the second bracket.

Step 5 : Adding all the answers got from the steps, we get the final answer.

3 0

2 years ago

If a = 1 and b = -3, what is the value of |a - 2| + |2 - b|?

Rina8888 [55]

Answer:

D 6

Step-by-step explanation:

1-2=-1 and the absolut value of -1 is 1

2--3=5

5+1=6

5 0

3 years ago

Read 2 more answers

Need help bad !!!!!!!!!!!!​

Need help bad !!!!!!!!!!!!