Answer:
377
Step-by-step explanation:
f(x) = 3* 2^(x+2) -7
Let x=5
f(x) = 3* 2^(5+2) -7
Parentheses first
f(x) = 3* 2^(7) -7
Then exponents
f(x) = 3* 128 -7
Then multiply
f(x) = 384 -7
Then subtract
f(x) = 377
We know b = sum of the two roots
= -4 + 2
= -2
therefore b = -2
Step-by-step explanation:
option number of b is write
See the explanation
<h2>
Explanation:</h2>
Rounding to the nearest cent is the same as rounding to the nearest hundredth. In order to round this way, you must use the thousandths place so that you can know whether hundredths place rounds up or stays the same.
So the rules is as follows:
- If the thousandths place is 5 or above, we add 1 to the digit of the hundredths place.
For example:
0.64<u>8</u>3
4: It's in the hundredths place
<u>8</u>: It's in the thousandths place
8 is greater than 5, so we round it as:
0.65
- If the thousandths place 4 or below, the digit in the hundredths place stays the same.
18.9<u>2</u>3569
9: It's in the hundredths place
<u>2</u>: It's in the thousandths place
2 is less than 5, so we round it as:
18.92
<h2>
Learn more:</h2>
Rounding to tens place: brainly.com/question/109166
#LearnWithBrainly
1+2 is 3 -6 is -3
Quick math!
