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2 years ago

Solve the system using elimination. x − 4y = 4 3x − 4y = −12

1 answer:

3 0

Common in both: -4y
Subtract the second from the first.
x-4y=4
3x-4y=-12
-2x=16
x=-8
Substitute in to find y.
-8-4y=4
-4y=12
y=-3

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For f(x)= 5^x, find<br> f(3/2)

Sergio039 [100]

Answer:

f(3/2)= 5√5

Step-by-step explanation:

f(3/2)= 5^(3/2)

f(3/2)= (5^3)^1/2 is the same things

f(3/2)= (125)^1/2 fraction exponent are the same are roots ^(1/2) is √

f(3/2)= √125

f(3/2)= √25 times √5 break up 125 to be 25 x 5

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2 years ago

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joja [24]

Answer:

$16

Step-by-step explanation:

This method is probbaly working backwards. I'm not sure.

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2 years ago

Irving can I remember the correct order of the five digits on his ID number he does remember that the ID number contains the dig

Cloud [144]

Answer: $\frac{27}{125}$

Step-by-step explanation:

Here the total numbers are 1, 4, 3, 7, 6

Since the total number of possible arrangement = $5\times 5 \times5 \times 5 \times 5=5^5$

The total number of the odd numbers in the given numbers = 3

Thus the possible arrangement that the first three digits will be odd numbers = $3\times 3\times 3\times 5\times 5=3^3\times 5^2$

Thus, the probability that the first three digits of Irvings ID number will be odd numbers = the possible arrangement that the first three digits will be odd numbers / total possible arrangement = $\frac{3^3\times 5^2}{5^5} = \frac{3^2}{5^{5-2}}$

= $\frac{3^3}{5^3} = \frac{27}{125}$

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