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Ahat [919]
3 years ago
8

Write an equivalent expression. 15 3a + 3

Mathematics
1 answer:
zalisa [80]3 years ago
8 0

Answer:

3 (15 a + 1)

45 a + 3

Step-by-step explanation:

You might be interested in
X + 16 at X= 4<br> 20<br> 21<br> 15
Colt1911 [192]

Answer:

The answer would be 20

Step-by-step explanation:

16+4=20

4 0
3 years ago
Read 2 more answers
An object launched vertically from a point that is 37.5 feet above ground level with an initial velocity of 48.6 feet per second
Elis [28]

Answer: 3.675 seconds

Step-by-step explanation:

Hi, when the object hits the ground, h=0:

h=−16t^2+48.6t+37.5

0=−16t^2+48.6t+37.5

We have to apply the quadratic formula:  

For: ax2+ bx + c  

x =[ -b ± √b²-4ac] /2a  

Replacing with the values given:  

a=-16 ; b=48.6; c=37.5

x =[ -(48.6) ± √(-48.6)²-4(-16)37.5] /2(-16)  

x = [ -48.6 ± √ 4,761.96] /-32

x = [ -48.6 ± 69] /-32

Positive:  

x = [ -48.6 + 69] /-32 = -0.6375

Negative:  

x = [ -48.6 - 69] /-32 = 3.675 seconds (seconds can't be negative)

Feel free to ask for more if needed or if you did not understand something.  

8 0
3 years ago
BEEEP Hhh, Math sucks ;-;
Alex

Answer:

A is the answer.

Step-by-step explanation:

C=2πr

/2π /2π

C/2π=r

8 0
3 years ago
Read 2 more answers
Is it right
Rasek [7]
F(t) = t2 + 4t − 14

 

y + 14 + 4 = ( t2 + 4t +4)

y + 18 = ( t + 2)^2

 

so the vertex of the parabola is ( -2 , -18)

 

<span>the axis of symmetry is y = -18</span>

8 0
3 years ago
Whats 2.13×0.197 as a decimal
Tcecarenko [31]

Answer:

It's 0.41961.

8 0
3 years ago
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