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Fantom [35]
3 years ago
14

Write an expression that represents the following formation. There are 3 rows of 4 students and 12 rows of 4 students. How many

students are there in all?
Mathematics
1 answer:
Brrunno [24]3 years ago
7 0

Answer:

60

Step-by-step explanation:

There are a total of 15 rows with 4 students, thus

15x4=60

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Why did I get this question wrong?
lord [1]

Step-by-step explanation:

∫₀³⁰ (r/V C₀ e^(-rt/V)) dt

If u = -rt/V, then du = -r/V dt.

∫ -C₀ e^u du

-C₀ ∫ e^u du

-C₀ e^u + C

-C₀ e^(-rt/V) + C

Evaluate between t=0 and t=30.

-C₀ e^(-30r/V) − -C₀ e^(-0r/V)

-C₀ e^(-30r/V) + C₀

C₀ (-e^(-30r/V) + 1)

I got the same answer.  Try changing the lowercase v to an uppercase V.

4 0
4 years ago
F is the midpoint of EG If EF = x + 2 and FG = 2x - 6, find<br> FG
mezya [45]

Answer:

FG = 10

Step-by-step explanation:

EF = x + 2 ; FG = 2x - 6

F is the mid-point of EG. So, EF = FG

=  > x + 2 = 2x - 6

=  > 2x - x = 6 + 2

=  > x = 8

FG = 2×8 - 6 = 10

8 0
3 years ago
Please help, my teacher doesn't teach me anything and I have to have more than 10 papers due by tomorrow
Nikitich [7]
1) x = 190 dgrees
3) x = 50 dgreed
5 0
4 years ago
First to completly answer will be marked brainliest if you give a random answer just to get points you will be reported
HACTEHA [7]

Answer:

Pi: Irrational

2/9: Rational

225: Rational

0.167: Irrational  <--- fourth one

Step-by-step explanation:

Not sure about the 4th one, but the others are good :)

7 0
3 years ago
Find the slope of the line that passes through (3, 10) and (7, 9).
vladimir2022 [97]

Answer:

-1/4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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