Answer:
B. 14
Step-by-step explanation:
When reading a stem and leaf plot, the outside numbers represent the tens and the inside numbers represent the units.
For example, take 5 | 4.
5 is the ten and 4 is the unit, making it 54.
If you understand that, then I think you'll understand how I got my answer.
Step-by-step explanation:
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The pertinent formula is i = p*r*t. Here, i = $6,300, r = 0.07 and t = 5 yrs.
We want to solve this for the principal, p. Since i = p*r*t, p = i / (rt). In this case, the principal was:
p = $6,300 / [0.07*5] = $6,300 / 0.35 = $18,000
Answers:
- False
- True
- True
- False
- True
- False
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Explanations:
- If we can write a number as a ratio (or fraction) of two whole numbers, then that number is considered rational. The denominator can never be 0. In the case of 6/4, this is a rational number. Therefore, the statement "6/4 is irrational" is false.
- This is a true statement. We cannot write sqrt(2) as a fraction of two integers. The proof of this is fairly lengthy, but one way is to use a proof by contradiction to show that sqrt(2) = a/b is impossible. Since we cannot make sqrt(2) into a ratio of two integers, we consider it irrational.
- This is a true statement. Any terminating decimal is always rational. In this case, 1.3 = 13/10.
- This is false. Any repeating decimal can be converted to a fraction through a bit of work. It turns out that 17.979797... = 1780/99 which makes the value to be rational.
- Any integer is rational. We can write the integer over 1. So something like -16 is the same as -16/1, showing how it is rational. So that's why this statement is true.
- This statement is false because we found true statements earlier.
Answer:
B
Step-by-step explanation:
f(x)=x^2+3x+1
f(x+2)=(x+2)^2+3(x+2)+1
f(x+2)=(x+2)(x+2)+3x+6+1
x^2+2x+2x+4+3x+7
x^2+4x+3x+11
x^2+7x+11
