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r-ruslan [8.4K]
3 years ago
13

Evaluate each expression 5.12x - 7

Mathematics
1 answer:
galina1969 [7]3 years ago
3 0

Answer:

answer is -35.84

........

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CALCULATE (5-3)^2 AND DEDUCE √14-6√5​
weeeeeb [17]
(5-3)^2 is = -4 , the second one is -9.67
4 0
3 years ago
A bag contains 4 blue marbles, 2 yellow marbles, and 6 orange marbles. What is the probability of picking an orange marble and t
ikadub [295]

We will see that the probability of picking two orange marbles without replacement is 0.23

<h3>How to get the probability?</h3>

If we assume that all the marbles have the same probability of being randomly picked, then the probability of getting an orange marble is given by the quotient between the number of orange marbles and the total number of marbles, this gives:

P = 6/12 = 1/2

And then we need to get another orange marble, without replacing the one we picked before, this time there are 5 orange marbles and 11 in total, so the probability is:

Q = 5/11

Finally, the joint probability (of these two events happening) is the product of the probabilities, so we get:

P*Q = (1/2)*(5/11) = 0.23

If you want to learn more about probability, you can read:

brainly.com/question/251701

5 0
2 years ago
Please solve these questions on the topic of exponents
galina1969 [7]

Answer/Step-by-step explanation:

Recall: x^{-a} = \frac{1}{x^a}

a. 4^{-3} = \frac{1}{4^3} = \frac{1}{64}

b. 13^{-2} = \frac{1}{13^2} = \frac{1}{169}

c. (-3)^{-2} = \frac{1}{-3^2} = \frac{1}{9}

6 0
3 years ago
I need help solving for X and Y
IgorC [24]

Answer:

y = 4 ; x = 4√2

Step-by-step explanation:

This is a 45° 45° 90° triangle meaning the legs will equal each other and the hypotenuse will be equal to the length of the legs times √2.

4 0
3 years ago
Convert to a fraction: 150%
BARSIC [14]
So,  all percents can be expressed as *percent*/100
So for this,  it would be 150/100
Then we want to simplify it down and all that jazz.  Find the biggest number that BOTH the numerator AND denominator can be divided by.
In this case,  50.
150/50=3
100/50=2
So now you have 3/2
You might also want a mixed number,  or, a whole number with the leftover fraction after it.
In this case,  see how many times can 2 go into 3 FULLY.
The answer would be 1.  1 is our WHOLE NUMBER.
Then take whatever is left over from 3 and that is our numerator.  Do this,  since 2 can go into 3 ONE time FULLY,  I can say 3-(2*1) is our remainder.
That gives you one as the numerator.  2 is still the denominator.
So a mixed number of 3/2 is 1 1/2
So here is 150% as a fraction:  150/100,  3/2 or 1 1/2.
I hope I helped!!! -Kibeye/Ethan
6 0
3 years ago
Read 2 more answers
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