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Sav [38]
2 years ago
13

One fish, two fish, red fish... got eaten by a bigger fish! someone has been eating all the little fish in the pond! At the begi

nning of the day there were 90 little fish in the pond. At the end of the day there were 52 little fish in the pond. Find the percent decrease from the beginning of the day to the end of the day. Round to the nearest percent.
A).40% C).42%
B).41% D).43
Mathematics
2 answers:
Ede4ka [16]2 years ago
7 0

Answer:

i think its C but idrk

Step-by-step explanation:

tatyana61 [14]2 years ago
5 0
I believe it’s c) 42% but I need someone to double check it
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For f(x)=√(2x+1) , find the following:
Wittaler [7]

Part a.

The domain is the set of x values such that x \ge -\frac{1}{2}, basically x can be equal to -1/2 or it can be larger than -1/2. To get this answer, you solve 2x+1 \ge 0 for x (subtract 1 from both sides; then divide both sides by 2). I set 2x+1 larger or equal to 0 because we want to avoid the stuff under the square root to be negative.

If you want the domain in interval notation, then it would be \Big[ -\frac{1}{2} , \infty \Big) which means the interval starts at -1/2 (including -1/2) and then it stops at infinity. So technically it never stops and goes on forever to the right.

-----------------------

Part b.

I'm going to use "sqrt" as shorthand for "square root"

f(x) = sqrt(2x+1)

f(10) = sqrt(2*10+1) ... every x replaced by 10

f(10) = sqrt(20+1)

f(10) = sqrt(21)

f(10) = 4.58257569 which is approximate

-----------------------

Part c.

f(x) = sqrt(2x+1)

f(x) = sqrt(2(x)+1)

f(x+2a) = sqrt(2(x+2a)+1) ... every x replaced by (x+2a)

f(x+2a) = sqrt(2x+4a+1) .... distribute

we can't simplify any further

6 0
3 years ago
Can someone please help me.. very quickly .. thank you
Alisiya [41]
X/8 + 12 = 16 
start by subtracting twelve from both sides
x/8 + 12 = 16 
      - 12   -12
You're left with x/8 = 4
Multiply both sides by 8
8× x/8 = 4 ×8
Your answer is x = 32
If you need to simplify, the answer is 2. 


 
3 0
3 years ago
Read 2 more answers
The product of 6x and ......​
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the answer is true because 6x multiply -2 to give -12x and 6x multiplies x² to give 6x³

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2 years ago
just use 5 ounce of lemonade concentrate for every 9 ounce of orange juice (a) find the ratio of number of ounces of orange juic
Maslowich

A) 9 : 5

B) 5( 36/9) which is 20 ounces of lemonade concentrate

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3 years ago
Triangles are worth 3 points. Quadrilaterals are worth 4 points. Parallelograms are worth 5 points. Each student identifies and
timurjin [86]

Answer:

I agree on janice because if is reliable and brilliant,she can score more than that

3 0
2 years ago
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