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kaheart [24]
3 years ago
5

Three fewer than the sum of c and d

Mathematics
1 answer:
balandron [24]3 years ago
4 0
C+d-3
Hope this helps if you were looking to put it into an expression!
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Need help with number 20
olga2289 [7]
4^4x = 8 
since 4 = 2^2  & 8= 2^3
so we can write the equation as 
(2^2)^4x = 2^3 
2^8x =2^3 
sp ,, 8x = 3 
then x = 3/8 
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3 years ago
5r^2-3rs<br> r=4<br> s=5 <br> help
Sonbull [250]
5*4^2-3*4*5=80-60=20

Hope that helps you
4 0
3 years ago
Find equations of the line that is parallel to the z-axis and passes through the midpoint between the two points (0, −4, 9) and
Lorico [155]

Answer: x = -4, y = 0.5, z = 5 +t

Hi!

The line L whose direction is parallel to vector V a passes through point A

is parametrized

P_L = Vt + A

Where t, is a real number, and P_L is a any point on line L.

In this case the direction is that of the z-axis , so V = (0, 0, 1)

A is the midpoint between points B = (0, -4, 9) and C=(-8, 5, 1)

The midpoint is A = (B + C)/2 = (-4, 0.5, 5)

Then the line is:

P_L = (0,0,1) t + (-4, 0.5, 5)

The equations for each coordinate are:

x = -4\\y = 0.5\\z = 5 + t

7 0
3 years ago
I NEED ANSWERS ASAP I GOT A 50
dimaraw [331]

I dont understand you already answered

3 0
3 years ago
Read 2 more answers
Tape Diagrams and Writing Equations
notka56 [123]

Answer:

3x + 16 = 22.75

3 = 22.75 - 16

<u>3</u><u>×</u><u> </u>= <u>6</u><u>.</u>75

3 3

x= 2.25

8 0
2 years ago
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