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marshall27 [118]
3 years ago
10

Write your answer (168 ÷ 7) × 3^2 - 43

Mathematics
2 answers:
wolverine [178]3 years ago
6 0

Answer:

173

Step-by-step explanation:

9966 [12]3 years ago
3 0

Answer:

173

Step-by-step explanation:

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If 7x+2y =3 and x-3y=30, what is the value of y?<br><br><br>​
larisa [96]

Answer:

-9

Step-by-step explanation:

6 0
2 years ago
Which equation represents h(x)?
Lelechka [254]

Answer: The second choice: h(x) = (f(x))(g(x))

Step-by-step explanation:

f(x) = -15

g(x) = 15

h(x) = -225

-15 * 15 = -225

Therefore, h(x) is the distribution of f(x) and g(x).

6 0
3 years ago
Mark A machine has two parts labeled A and B. The probability that part A works for one year is 0.8 and the probability that par
Mrrafil [7]

Answer:

0.625 = 62.5% probability that part B works for one year, given that part A works for one year.

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

The probability that part A works for one year is 0.8 and the probability that part B works for one year is 0.6.

This means that P(A) = 0.8, P(B) = 0.6

The probability that at least one part works for one year is 0.9.

This means that: P(A \cup B) = 0.9

We also have that:

P(A \cup B) = P(A) + P(B) - P(A \cap B)

So

0.9 = 0.8+0.6 - P(A \cap B)

P(A \cap B) = 0.5

Calculate the probability that part B works for one year, given that part A works for one year.

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.5}{0.8} = 0.625

0.625 = 62.5% probability that part B works for one year, given that part A works for one year.

3 0
3 years ago
Can someone please help me on these two questions tysm
Rashid [163]
Plug them in:

x + 5y = 18 
x - 3y = 10

F. (1,13)
G. (13,1)
H. (-2,4)
J. (-2,-4)

1 + 5*13 = 18 is obliviously not true so that takes out the first option.
 
13 + 5*1 = 18 : This is true but we have to check the next one.
13 - 3*1 = 10 : This is also true so we know this is the answer. We don't really need to check the other 2 but u can if u want to.

Hope that helped :) <span />
8 0
3 years ago
Elise babysat her cousins during her parents' holiday party. The table shows the total earned for each cousin she babysat.
Jet001 [13]

Answer:

C. $49

Step-by-step explanation:

It is going up by $7 each cousin

5 0
3 years ago
Read 2 more answers
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