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vaieri [72.5K]
3 years ago
11

Select the correct answer.

Mathematics
1 answer:
Marat540 [252]3 years ago
5 0
I just did it it’s 212
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A printer is printing photos. For every 6 photos, the printer takes 3 minutes.
ki77a [65]

Answer:

Number of Photos - 6, 8, 12, 14, 18

Time (Minutes) - 3, 4, 6, 8, 9

hope this helps.

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3 years ago
Sam bought a kit to make a skateboard ramp. The kit contains 3 pieces of wood, one is 3 feet long, one is 4 feet
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3 years ago
How many terms are there in a geometric series if the first term is 3, the common ratio is 4 and the sum of the series is 1,023
Olenka [21]
The sum of a geometric sequence is:

s(n)=a(1-r^n)/(1-r) in our case:

s(n)=3(1-4^n)/(1-4)

s(n)=-(1-4^n)

s(n)=(4^n)-1  and s=1023

(4^n)-1=1023

4^n=1024

n ln4=ln1024

n=(ln1024)/(ln4)

n=5
4 0
3 years ago
Consider an object moving along a line with the given velocity v. Assume t is time measured in seconds and velocities have units
Yakvenalex [24]

Answer:

a) positive direction: t < 2s & t>6s   ; negative direction: 2s < t < 6s

b) 7 m

c) 71 m

Step-by-step explanation:

Given:

v(t) = 3t^2 -24t +36   [0 , 7]

Find:

a) The value of time when particle is moving in positive direction:

The change in direction of the particle can be determined by v(t) > 0

Hence,

                                    0 < 3t^2 -24t +36

                                    0 < t^2 - 8t + 12

                                    0 < (t - 2)*(t - 6)

                                    t < 2s  , t  > 6s  

The particle travels in positive direction in the interval t < 2s and t > 6s , While it travels in negative direction when 2s < t < 6s.

b) The displacement ds over the given interval [ 0 , 7 ]

                                  ds = integral (v(t)).dt

                                  ds = t^3 -12t^2 +36t

                                  ds = 7^3 -12*7^2 +36*7

                                  ds = 7 m

c) Total distance traveled in the interval:

                                 Total distance= ds(0-2) + ds(2-6) + ds(6-7)

                                 D = 2*(2^3 -12*2^2 +36*2) - 2*(6^3 -12*6^2 +36*6) + 7

                                 D = 2*32 - 2*0 + 7

                                 D = 71 m          

     

6 0
3 years ago
A recipe of 3 1/4 cups of flour serves 15 people. Write a proportion tp find the number of servings that 4 1/2 cups of flour mak
victus00 [196]
When u are cooking u use measurements for the recipe if u only have a 1 1/2 cups of milk but u need 2 1/2 u can subtract to see how much more milk is needed
5 0
3 years ago
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