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7nadin3 [17]
3 years ago
5

Composite number between 70 and 80

Mathematics
2 answers:
NeX [460]3 years ago
4 0
The composite numbers are 72, 74,77 and 78
Sever21 [200]3 years ago
4 0
The answer's are 72, 74, 77, and 78.
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Is 6:9 reater than less than or equal to 9:12
insens350 [35]

Answer:

less than

Step-by-step explanation:

6/9 is less than 9/12

6/9=.6666666666666666666666666

9/12=.75


.666666<.75

5 0
3 years ago
Using the rule y=4x-1, find the value of y when x is 5
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y=19!! hope this helps :)

3 0
3 years ago
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2 factors that add to 6 but multiply to 60
hodyreva [135]

Answer:

The short answer is there isn’t.

Start by writing each of these as an expression:

x * y = 60

x + y = 7

Next, solve each for the same variable; in this case, y:

(x * y) / x = 60 / x

.: y = 60 / x

(x + y) - x = 7 - x

.: y = 7 - x

Next, replace y of the second expression to the first

y = 60 / x & y = 7 - x

.: 7 - x = 60 / x

Now, solve for x:

(7 - x) * x = (60 / x) * x

.: x * 7 - x^2 = 60

This is quadratic, so write it in the form of ax2 + bx + x = 0

(-1)x^2 + (7)x + (-60) = 0

.: a = -1, b = 7, c = -60

Finally solve for b:

x = (-b +- sqrt(b^2 - 4*a*c)) / 2a

.: x = (-7 +- sqrt(7^2 - 4*-1*-60)) / (2 * -1)

.: x = (-7 +- sqrt(49 - 240)) / -2

.: x = (-7 +- sqrt(-191)) / -2

The square root of a negative value is imaginary and thus there’s no real answer to this problem.

8 0
2 years ago
A distribution x is known to have a mean value of 5 and a standard deviation of 5. what is its mean square value (i.e., the expe
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\mathbb V(X)=\mathbb E(X^2)-\mathbb E(X)^2
\implies 5^2=\mathbb E(X^2)-5^2
\implies\mathbb E(X^2)=50
8 0
3 years ago
he tallest player on a basketball team is 167.64 centimeters tall. Height in inches is found by dividing height in centimeters b
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             =    (167.64 · 1 / 2.54)    inches

             =        66.0 inches

3 0
3 years ago
Read 2 more answers
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