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Rasek [7]
3 years ago
10

Write an expression in expanded form that is equivalent to 3(7d + 4e)

Mathematics
2 answers:
Vladimir79 [104]3 years ago
8 0
21d+12e
answer mine pleadw
Leto [7]3 years ago
4 0
21d + 12e is correct
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Given the following data set: 111, 122, 133, 149, 126, 117, 101, 121
Ivanshal [37]

Im pretty sure your answer is gonna be A) 15.5 .

5 0
3 years ago
An object is thrown upward from the top of a 48-foot building with an initial velocity of 32 feetquadratic equation h = - 16t^2+
Alex17521 [72]

SOLUTION

The object would hit the ground at the root of the equation, that is where h = 0

So we have

\begin{gathered} h=-16t^2+32t+48=0 \\ -16t^2+32t+48=0 \\ 16t^2-32t-48=0 \\ divide\text{ through by 16} \\ t^2-2t-3=0 \end{gathered}

Solving the quadratic equation, we have

\begin{gathered} t^2-3t+t-3=0 \\ t(t-3)+1(t-3)=0 \\ (t-3)(t+1)=0 \\ t=3,\text{ or} \\ t=-1 \end{gathered}

So we ignore -1 as time cannot be negative.

Hence the object hit the ground in 3 seconds

3 0
1 year ago
Write the equation of the line passing through the points (-4,5) and (4,1). Show all of your work.
777dan777 [17]

First, find the slope using the equation, y2 - y1 / x2 - x1

1-5 / 4 - - 4 = -4/8 =  -1/2

plug this into slope intercept form

y = -1/2x + b

Next use one of the points to find b using point-slope form. I will use (4,1)

y - y1 = m ( x - x1)

y - 1 = -1/2 (x - 4)

y -1 = -1/2x + 2

+1                  +1

y = -1/2x + 3 is your equation

5 0
3 years ago
The number of men in a tour group is 15 times the number of women. If there are 48 people in the group, how many are men? 45 30
elena55 [62]

48/15 = 3.2 round to nearest whole number (3)

48-3 = 45 men

5 0
4 years ago
What is 16-2k=14? somebody help pls​
mina [271]

Answer:

K=1

Step-by-step explanation:

1 times 2 equals 2

16-2 equals 14

7 0
4 years ago
Read 2 more answers
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