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eduard
3 years ago
9

What is the answer? I don’t understand this thing at all

Mathematics
1 answer:
barxatty [35]3 years ago
4 0

Answer: 117.8 rounded to tenth

117.81 rounded to hundredth

Step-by-step explanation:

Pi * 10^2 * 135/360

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The modified accelerated cost recovery system (MACRS):
ZanzabumX [31]

bahala kau ha ha. Matt wahak

3 0
2 years ago
A scale drawing of a pool has scale of 1 in :4 ft. If the actual pool is 16 ft wide, how is the pool represented in the drawing
Deffense [45]

Answer: 4 inches

Step-by-step explanation:

Let the width of the pool in the drawing be represented by x.

Since scale drawing of a pool has scale of 1 in :4 ft and the actual pool is 16 ft wide, this can be represented in an equation as:

1/4 = x/16

Cross multiply

4 × x = 1 × 16

4x = 16

x = 16/4

x = 4

Therefore, the pool representation in the drawing is 4 inches

8 0
2 years ago
Students in a zoology class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. After t​
juin [17]

Answer:

a. 73; b. 48.9; c. 2; d. 33.8; e. 73

Step-by-step explanation:

Assume the function was

S(t)= 73 - 15 ln(t + 1), t  ≥ 0

a. Average score at t = 0

S(0) = 73 - 15 ln(0 + 1) = 73 - 15 ln(1) = 73 - 15(0) =73 - 0 = 73

b. Average score at t = 4

S(4) = 73 - 15 ln(4 + 1) = 73 - 15 ln(5) = 73 - 15(1.61) =73 - 24.14 = 48.9

c. Average score at t =24

S(24) = 73 - 15 ln(24 + 1) = 73 - 15 ln(25) = 73 - 15(3.22) =73 - 48.28 = 24.7

d. Percent of answers retained

At t = 0. the students retained 73 % of the answers.

At t = 24, they retained 24.7 % of the answers.

\text{Percent retention} = \dfrac{\text{24.7}}{\text{73}} \times 100 \, \% = \text{33.8 \%}\\\\\text{The students retained $\large \boxed{\mathbf{33.8 \, \%}}$ of their original knowledge after two years.}

e. Maximum of the function

The maximum of the function is at t= 0.

Max = 73 %

The graph below shows your knowledge decay curve. Knowledge decays rapidly at first but slows as time goes on.

 

6 0
3 years ago
Evaluate -3x 3 - 4x for x = -1. 1 7 -1
7nadin3 [17]
-3x^{3}-4x
=-3(-1)^{3} -4(-1)
=-3*(-1)+4
=3+4
=7
5 0
3 years ago
I don’t understand this question
Arada [10]

Step-by-step explanation:

step 1. a polynomial must have whole non negative exponents

step 2. A, B, D have negative exponents

step 3. C is a polynomial.

3 0
3 years ago
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