All categories

3 years ago

(7, 1) and (x, 4); m = 3/4 missing value 50 POINTS

Mathematics

1 answer:

Sever21 [200]3 years ago

7 0

Answer:

x = 11

Step-by-step explanation:

4 - 1 / x - 7 (simplify)

3 / x - 7 = 3/4 (multiply by x - 7)

3 = 3/4 (x - 7)

3 = 3/4x - 5.25 (add 5.25 to both sides)

8.25 = 3/4x (divide both sides by 8.25)

x = 11

sub into the formula to check:

4-1 / 11 - 7

3 / 4

You might be interested in

Please answer correctly I’ll mark you brainlist!

nydimaria [60]

Answer:

look at the picture i sent......

8 0

3 years ago

In rectangle ABCD, AC = -x + 21, BP = -9x + 19, and DP = -y + 5. Find the value of y.

creativ13 [48]

Answer:

y=-5

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The diagonals of a rectangle are equal and bisect each other

$BP=\frac{1}{2}AC$

$DP=BP$

step 1

Find the value of x

$BP=\frac{1}{2}AC$

substitute the given values

$(-9x+19)=\frac{1}{2} (-x+21)$

solve for x

Multiply by 2 both sides

$-18x+38=-x+21$

$18x-x=38-21\\17x=17\\x=1$

step 2

Find the value of y

$DP=BP$

we have

$BP=-9x+19$

$DP=-y+5$

substitute

$-y+5=-9x+19$

substitute the value of x

$-y+5=-9(1)+19\\-y+5=10\\y=5-10\\y=-5$

5 0

3 years ago

How do I do this I really don't understand anything here

Lera25 [3.4K]

The red arrows show that the lines are parallel, but using the stuff given you can make an equation.
its hard to explain without drawing but starting from the 60 if you can make a Z you will get alternate angles and that mean that the given equation MUST be equal to 60. So,

8x-4=60

8x=60+4

8x=64

x=64/8

x=8 (is your answer)

hope you understand

8 0

4 years ago

If parallelogram abcd was reflected over the y-axis, reflected over the x-axis, and rotated 180 degrees, where would point a' li

stiks02 [169]

Start point A = (-4, 1) over y, A = (4,1) over x, A = (4, -1) rotated 180 degrees.

7 0

3 years ago

14×12 distributive property

miss Akunina [59]

186 if that’s the answer you where looking for if not comment here it will give me a notification and I will see

5 0

4 years ago