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3 years ago

Find the midpoint of A and B where A has coordinates (2, 4) and B has coordinates (-3, -9).

Mathematics

2 answers:

Natali5045456 [20]3 years ago

6 0

Answer:

X = -0.5

Y = -2.5

Step-by-step explanation:

I found this by the forumla determine the X1 and X2 add the together then divide it by 2 for the value of X midpoint. Then add Y1 and Y2 and divide it by 2 together for the value of Y midpoint.

tatuchka [14]3 years ago

4 0

Answer:

(-0.5,-2.5)

Step-by-step explanation:

(x1 + x2) / 2 = x midpoint
(y1 + y2) / 2 = y midpoint

⇒ 2 + -3 = 5

⇒ 5 / 2 = -0.5

⇒ 4 + -9 = -5

⇒ -5 / 2 = -2.5

→ = (-0.5, -2.5)

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The sum of two numbers is 20.8 and their difference os 10.2. Find these numbers.

Slav-nsk [51]

Answer:

the numbers are 10.6 and 10.2

6 0

3 years ago

Lucy is knitting a blanket and needs to buy some more yarn. At her local craft store, 2 skeins of yarn cost $7 and 8 Skeins of y

Gemiola [76]

Answer:

$y = 3.5x$

Where y is the cost and x is the number of skeins of yarn.

Step-by-step explanation:

To model this situation we can use the linear equation:

$y = ax + b$

Where y is the cost, x is the number of skeins of yarn, a is the slope of the equation and b is the y-intercept.

If 2 skeins of yarn cost $7, we have that:

$7 = 2a + b$

If 8 skeins of yarn cost $28, we have that:

$28 = 8a + b$

Multiplying the first equation by 4 and subtracting the second equation from it, we have:

$4*7 - 28 = 4*(2a + b) - 8a - b$

$28-28 = 8a + 4b - 8a - b$

$0 = 3b$

$b = 0$

Now, finding the value of a, we have:

$7 = 2a + b$

$7 = 2a + 0$

$a = 3.5$

So our equation is:

$y = 3.5x$

6 0

3 years ago

Which value of x is in the solution set of the following inequality? -3x + 5 less than 17

guajiro [1.7K]

Answer:

x>-4

Step-by-step explanation:

-3x+5<17

subtract 5 from both sides

-3x<12

divide 3 from both sides

-x<4

divide by -1

x<-4

when dividing a negative number you flip the sign

x>-4

6 0

3 years ago

Read 2 more answers

Felix has a gross income of $18,000. (single filer and not claimed as a

Vilka [71]

Answer:Felix's total tax due is "$560".

According to the question,

Gross income,

$18,000

Standard deduction,

$12,400

Now,

The taxable income will be:

= ($)

hence,

The tax due will be:

= ($)

Thus the above approach is right.

3 0

3 years ago

2a=2b+c<br>I'm trying to find solve b

Aloiza [94]

Answer:

$b = \frac{2a - c}{2}$

Step-by-step explanation:

$2a = 2b + c$

$= > 2b = 2a - c$

$= > b = \frac{2a - c}{2}$

6 0

3 years ago