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Sindrei [870]
3 years ago
7

HELP I'm really bad at math​

Mathematics
1 answer:
irga5000 [103]3 years ago
3 0

Answer:

18 1/2

Step-by-step explanation:

3 7/10 x 5 = 18 1/2

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Help please. What does f(x) equal?
ivanzaharov [21]

Answer:

The answer to your question is      f(x) =- \frac{9}{x}  

Step-by-step explanation:

g(x) = 9x - 8

f(x) = ?

h(x) = (f°g)(x) = 9 / (9x - 8)

Process

When we evaluate a function with another function, just substitute the second function in all the x of the first function.

From the information given we notice that g(x) = 9x - 8 and it is in the denominator of the function h(x). This means that before we substitute this value in f(x) there, there was a "x".

Then

          f(x) =- \frac{9}{x}    so   (f°g)(x) =- \frac{9}{9x - 8}   or  h(x) = -\frac{9}{9x - 8}

6 0
3 years ago
X and Y are two mutually exclusive events. P(X)= 0.55 and P(X or Y)=0.7. Work out P(not Y) (2 marks)
Nesterboy [21]

P(x) = 0.55

P(x ∪ y) = 0.70  →→ P(x) +P(y) = 0.70 →→ 0.55 + P(y) =0.70→→P(y) = 0.15
If P(NOT y) = 1- 0.15 = 0.85

8 0
3 years ago
Is it > greater than or < less than or = equal to? √6+5___6+√5​
wlad13 [49]

Answer:

√6+5 < 6+√5​

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the probability
4vir4ik [10]

Answer is in a box.

The bag contains 6 red marbles, 8 blue marbles and 9 green marbles, that is 23 marbles.

The probability that one of the 23 marbles will be picked is 1 or 100%, we are picking a marble for sure.

So what is the probability you will pick for example one of the 6 red marbles? It is 6 out of 23 but since we need percentages multiply by 100,

\frac{6}{23}\cdot100\approx26.09\%

The probability to pick a blue marble is,

\boxed{\frac{8}{23}}\cdot100\approx34.78\%

And the probability to pick a green marble is,

\frac{9}{23}\cdot100\approx39.13\%

To check that everything is right you can sum all the probabilities; the probability that it will be either red, blue or green is 100% so the individual probabilities must sum to 100%, and they do,

26.09\%+34.78\%+39.13\%=100\%

Hope this helps :)

8 0
3 years ago
Heyy please help with this question - i'll give brainliest :))
djverab [1.8K]

Answer:

B. 147 cm2

Step-by-step explanation:

8 0
3 years ago
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