Find f(-5) if f(x) = |x + 1|.
A)6
B)5
C)4

Answers

Answer 1

Answer: The answer would be C)5

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Factor this polynomial using the factor theorem.x^2 + 6x+ 9
Factor completely 16x2 + 40x + 25.(4x − 5)(4x − 5) (2x − 5)(2x − 5) (2x + 5)(2x + 5) (4x + 5)(4x + 5)
Your bank balance is $102.35 and you've just made purchases for $20, $33.33, and $52.80. You then make deposits of $25 and $24.75. What's your new balance?
PLS HELP WITH 1b!!!!!

D
What is a decimal that is equivalent to the fraction 50/100
?

Answers

Answer:

0.5

Step-by-step explanation:

What is the approximate area of the circle? Use 3.14 = Pi

A. 122.7 m²
B. 78.5 m²
C. 39.3 m²
D. 19.6 m²

Answers

what is the diameter or radius?

What is the area of a circle with a diameter of 200cm? Use 3.14 for pie.

Answers

Answer:

A≈31415.93cm²

Step-by-step explanation:

The doubling time of a population of grasshoppers is 10 days. By what factor does the population of grasshoppers grow in 35 days?

Answers

so in 10 days the grasshopper (x) is doubled (2x)
20 days it is 2(2x) or 4x
30 days it is 2(4x) or 8x
in 35 days it is 1/2 of 10 so 1/2 times 2 times 8x=8x

it increased by a factor of 8

The correct answer is:

11.3

Explanation:

In 10 days, the population x would double, becoming 2x.

Every 10 days after, the population would double again. This means at 20 days, the population would be 2(2x) = 4x, and at 30 days, the population would be 2(4x) = 2(2(2x)) = 8x.

Writing the repeated multiplication out, we see that this can be represented with exponents. 10 days would be 2¹(x); 20 days would be 2²(x); 30 days would be 2³(x).

5 days would not be adding a whole number to the exponent, as it is only half of the time it takes to double. This means we would add 0.5 to the exponent; this would make 35 days

$2^(3.5)(x)$ , which comes out to 11.3x. This means it increases by a factor of 11.3 in 35 days.

Bob has a tree house at a height of 20 ft. When he's feeling adventurous he uses a rope to climb the tree house instead of the ladder. If the weight of the rope is 32 lb, then how much work must Bob do to pull the rope up once he has entered the house? A. 173.00 ft-lb B. 235.29 ft-lb C. 320.00 ft-lb D. 383.54 ft-lb