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Stells [14]
3 years ago
12

What is the least common multiple of 21 and 30?

Mathematics
2 answers:
Blizzard [7]3 years ago
5 0

I think The answer is 210

Arisa [49]3 years ago
3 0
Answer should be 210
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If D is the midpoint of CE, CD= 9x-7, and DE= 3x+17, find CE
tatuchka [14]
Hello!

Since D is the midpoint and the two equations are and both sides of point D the equations equal each other

9x - 7 = 3x + 17

Now you solve it algebraically

Add 7 to both sides

9x = 3x + 24

Subtract 3x from both sides

6x = 24

Divide both sides by 6

x = 4

Now we put this into both equations and add them

9(4) - 7 = 29
3(4) + 17 = 29

29 + 29 = 58

The answer is 58 units

Hope this helps!
3 0
3 years ago
Find the equation of the line passing through the point (8, -4) and slope -4.
ehidna [41]

Answer:

y+4x=36

Step-by-step explanation:

the answer isn't in the choice

3 0
3 years ago
Given the function w (x) = 9x + 8, evaluate w (5) . Explain all steps.
masya89 [10]

Hi there!

\large\boxed{w(5) = 53}

Evalute by substituting in 5 for x:

w(5) = 9(5) + 8

Simplify:

w(5) = 45 + 8 = 53

7 0
2 years ago
Read 2 more answers
Answer while showing work I need u to show ur work and answer
skad [1K]

Answer:

7cm

Step-by-step explanation:

One side of a square is increased by 8 cm, let us say the length got increased by 8 cm. So we have length of x + 8 cm

An adjacent side, the width, decreased by 2 cm. So we have width of x - 2cm

Perimeter of rectangle = 2(length + width)

40 = 2( (x + 8) + ( x - 2) )

40 = 2( 2x + 6)

40 = 4x + 12

28 = 4x

x = 7 cm

That is 7 cm of the length of the side of the square

4 0
3 years ago
What of the following is an arithmetic sequence?
Gnesinka [82]

Answer: B

1,3,9,27,...

3^0,3^1,3^2,3^3,....

3 0
3 years ago
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