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Aneli [31]
3 years ago
14

Please help with this question

Mathematics
1 answer:
alexgriva [62]3 years ago
3 0
A = 1/2 BH

#17
B = 3 H = 4
A = 1/2 BH
A = 1/2 (3)(4) = 6

#18
B = 6 H = 4
A = 1/2 BH
A = 1/2 (6)(4) = 12

#19
B = 12 H = 8
A = 1/2 BH
A = 1/2 (12)(8) = 48

#20
B = 11 H = 5
A = 1/2 BH
A = 1/2 (11)(5) = 27.5

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Olenka [21]

Answer:

23 cubic units

Step-by-step explanation:

1st layer: 8 units
2nd layer: 7 units
3rd layer: 5 units
4th layer: 3 units

8+7+5+3 = 23
See the attachments below


Hope this helps :)

5 0
2 years ago
Write an expression that represents the volume of a cube with side length 2x^3. (For any cube with side length s, v = s^3 = s.s.
leva [86]

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C. 8x^9

Step-by-step explanation:

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5 0
3 years ago
The number of leaves that fall off a tree n days after day 1 is given by the function f (n) = 3(2)".
densk [106]

Answer:

A. On the first day, 3 leaves fall.

B. D. The number of leaves that fall on a given day is 2 times the number of leaves that fell on the previous day.

Step-by-step explanation:

Given

f(n) = 3(2)^n

Solving (a) The meaning of 3.

3 represents the initial number of leaves (i.e. the first day) and this proved as follows.

On the first day, n = 0.

Substitute 0 for n in f(n) = 3(2)^n

f(0) = 3(2)^0

f(0) = 3*1

f(0) = 3

Solving (b) The meaning of 2.

2 represents the rate which leaves fall down.

In (a)

f(0) = 3

Take n = 1

Substitute 1 for n in f(n) = 3(2)^n

f(1) = 3(2)^1

f(1) = 3*2

f(1) = 6

When f(1) is divided by f(0), the result 2. So, the number of leaves doubles everyday

4 0
3 years ago
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nataly862011 [7]

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3 0
3 years ago
68 over 100 is what %
frez [133]

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6 0
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