Number 7:
answer: a) odd
b) negative
explanation: let’s look at end behaviour. we know that all odd degree polynomials have opposite end behaviours, meaning that as x approaches negative infinity it will be in an opposite quadrant compared to when x is approaching positive infinity. Since x starts in Quad 2 and ends in Quad 4, we know it’s odd degree!! To figure out whether the leading coefficient is positive or negative, let’s look at what we already know about functions. Any odd function that has a positive leading coefficient will go from Quad 1 to Quad 3. Think about y = x^3 for example. Since this function goes from 2 to 4, the L.C. is negative.
number 8:
answer: a) even
b) negative
explanation: same logic as above but with even degree functions. Think about y = x^2 or x^4
Well, the total amount of books is all fiction books and nonfiction books, let's say is "x", total
now, the fiction books are 2:7 or 2/7 to nonfiction
so, if we divide the total "x" by 2+7, or 9, 2 of those quotients go to fiction and 7 of those go to nonfiction
if we divide "x" by 9, a "whole" is 9/9 or (9/9)x or 1x or just "x"
and we know 7 of those 9ths belong to nonfiction, thus
Answer:
D: 187 °F
Step-by-step explanation:
You need to subtract -53 from 134. But since that 53 degrees is negative and you are subtracting it, you change the negative sign to a positive sign and add positive 53 to positive 134 to get 187.
All 4 stages span a total of 4 weeks or 28 days.
Egg - 2 days
Larva - 7 days
Pupa - 5 days
Adult - 14 days
This means that the larva exists for 7/28 = 25% of the time.
So, 25% of the randomly selected developing bees would be larva.
25% of 200 is 50. So, the answer is A.
Edit: The question is ambiguous. If by developing bees they exclude all the adult bees, then larva exist for 50% of the time and the answer would be 100.
Problem 10
<h3>Answer: 80 degrees</h3>
Work Shown: 80-0 = 80
You subtract the values on the protractor where the two angle arms line up.
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Problem 11
<h3>Answer: 45 degrees</h3>
Work Shown: 45-0 = 45
Same idea as problem 10
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Problem 12
<h3>Answer: 83 degrees</h3>
Work Shown: 128-45 = 83
Same idea as the others. The arm TS isn't fully on 130 degrees, and it's a bit short of it. It looks to be about 128 degrees or so.
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Problem 13
<h3>Answer: 35 degrees</h3>
Explanation: Luis forgot to subtract the value of each arm of the angle. So he should have done 80-45 = 35. The answer would be 80 degrees if arm TQ was at 0 degrees (so 80-0 = 80), but instead TQ is at 45 degrees.
