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3 years ago

1-z/z-7 - 8z-3/7-z subtract

Mathematics

1 answer:

maxonik [38]3 years ago

3 0

The answer to your question above would be: 7z-2/z-7

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10. The coordinates of C and D are 4 and -28 respectively, and F mdpt CD. Solve for:

Zigmanuir [339]

Answer:

a) mCD=7

b) mCF=7

c) mFD=7

d) F(2,-14)

Step-by-step explanation:

Let the coordinates of C and D be (4,0) and (0,-28) respectively and F is the midpoint of CD

a) mCD

Slope formula

$m= \frac{y_2-y_1}{x_2-x_1}$

$m= \frac{-28-0}{0-4}$

$m= \frac{-28}{-4}$

$m= 7$

mCD=7

b) mCF

mCF=mCD

Hence mCF=7

c) mFD

mFD=mCD

Hence mFD=7

d) Coordinates of F : mid point formula

Mid points Formula

$x= \frac{x_2+x_1}{2}$

$x= \frac{0+4}{2}=\frac{0+4}{2}=2$

$y= \frac{y_2+y_1}{2}=\frac{-28+0}{2}=\frac{-28}{2}=-14$

coordinates of F are (2,-14)

5 0

3 years ago

*<br> When I multiply a + and +, the answer will be a?

OLga [1]

Answer:

yes

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Can anyone please help me I’ll give you brain list

irga5000 [103]

Answer:

3a. yes

3b. y= 75x

3c. 600 mi

3d. 10 inches

Step-by-step explanation:

3a: if you divide the y by the x, you'd get 75 everytime, meaning it's proportional.

3b: y would equal the amount of inches multiplied by 75, so y=75x

3c: you can use the equation and substitute the x for 8, so y=75(8), giving you 600 miles

3d: you can also use the equation in reverse, if the actual miles is 750, then this is your y, so it would look like 750=75x and to solve you'd divide, 750/75, giving you 10 inches

8 0

3 years ago

Can you help me to solve this<br>

RUDIKE [14]

Answer:

Is the question even complete ?

Step-by-step explanation:

5 0

2 years ago

Please help!!!

rusak2 [61]

Answer:

63.0985

Step-by-step explanation:

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3 years ago