3 years ago

Evaluate f(x) = 2x at x = 5. A) 32 B) 10 C) 64 D) 25

Mathematics

1 answer:

maks197457 [2]3 years ago

7 0

Answer:

A is the answer 32

Step-by-step explanation:

use a digital calculator or a scientific

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The units’ digit of a two-digit number is 7 more than the tens’ digit. If 26 is added to the number, the result obtained is five

Vikki [24]

Let the digit in the tens place be x

tens place = x (therefore the value is 10x)
ones place = x + 7
The number is 10x + x + 7

Add 26 to it
10x + x + 7 + 26 = 11x + 33

It is 5 times the sum of the digit
11x + 33 = 5(x + x + 7)
11x 33 = 10x + 35
x = 2
x+ 7 = 2 + 7 = 9

So the number is 29

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If 12 Out of 30 people prefer KitKat bars over almond joy,how many people out of 330 would you predict would prefer KitKat.

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The empirical probability that people would prefer KitKat is 12/30, or 0.4.

Then, among 330 people, 0.4(330 people), or 132, would prefer KitKat.