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rusak2 [61]
3 years ago
15

This is 10 points plz help ( NO LINKS )

Mathematics
2 answers:
zubka84 [21]3 years ago
7 0
It is F -20 because -12-8=-20
denis-greek [22]3 years ago
3 0
F-20
- I just did this one for my assignments
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Average rate of change from G from x=1 to x=4 is
Maurinko [17]

Answer:

3

Step-by-step explanation:

minus the variable, 4-1 is 3.

3 0
3 years ago
The time it takes to clean up after an anniversary party varies inversely as the number of people cleaning. If 3 people work tog
Norma-Jean [14]

Answer:

54minutes

Step-by-step explanation:

Let the time taken to clean up be t

Let the number of people cleaning be n

If the time it takes to clean up after an anniversary party varies inversely as the number of people cleaning then;

t = k/n

k is the constant of proportionality

If 3 people work together to clean, and took them 90 minutes, this means

at t = 90, n=3

Substitute

90 = k/3

k = 3×90

k = 270

To et the time it will take 5people to clean, the will say;

t =k/n

t =270/5

t = 54 minutes

Hence it will take 5 people 54minues to clean

3 0
2 years ago
Read 2 more answers
How many axes of rotational symmetry does a cone have?
juin [17]

Answer:

A cone have 5 lines of symmetry.

Step-by-step explanation:

8 0
2 years ago
A little help here ^-^
frosja888 [35]
252 is the answer because you can square of every small box to each parts area then add it up
8 0
3 years ago
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Events A1, A2 and A3 form a partiton of the sample space S with probabilities P(A1) = 0.3, P(A2) = 0.5, P(A3) = 0.2.
timurjin [86]

Answer:

Step-by-step explanation:

Given that events A1, A2 and A3 form a partiton of the sample space S with probabilities P(A1) = 0.3, P(A2) = 0.5, P(A3) = 0.2.

i.e. A1, A2, and A3 are mutually exclusive and exhaustive

E is an event such that

P(E|A1) = 0.1, P(E|A2) = 0.6, P(E|A3) = 0.8,

P(E) = P(A_1E)+P(A_2E)+P(A_3E)\\= \Sigma P(E/A_1) P(A_1) \\= 0.1(0.3)+0.5(0.6)+0.8(0.2)\\= 0.03+0.3+0.16\\= 0.49

P(A_1/E) = P(A_1E)/P(E) = \frac{0.3(0.1)}{0.49} \\=0.061224

P(A_2/E) = P(A_2E)/P(E) = \frac{0.5)(0.6)}{0.49} \\=0.61224

P(A_3/E) = P(A_3E)/P(E) = \frac{0.2)(0.8)}{0.49} \\=0.3265

4 0
3 years ago
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