Does anyone knows how to do this I don’t understand it.
Does anyone knows how to do this I don’t understand - 1


Answer 1
Answer: Between the two, the difference in x is -1 and the difference in y is 3. 
Y's difference is rise, and x's difference is run. 
Divide rise over run to get the slope. 
3 / -1 = -3 
So the slope is -3, eliminating 2 and 4. 
The y-intercept that fits the graph is 7, not -7. 
That means the correct equation is C. 
Hope this helps!
Answer 2
Answer: The correct answer is c

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The exponential function f(x) = 215e^0.0325x models the Siberian tiger population of China, f(x), x yearsafter 1990. If this trend continues, predict the Siberian tiger’s population in Chins in the year



They are both linear

Step-by-step explanation:

i did it on khan academy


789 Siberian tigers

Step-by-step explanation:

2030 = 40 years after 1990, so...

215 * e^(.0325*40) =

215 * e^1.3 =

788.89878405, which is approx. 789

Thirty-five percent of students at Jones High School ride the bus. Two hundred seventy-three students ride the bus. How many students go to Jones High School? A) 96 B) 560 C) 694 D) 780


Answer: D) 780 is the right option. The total number of students go to Jones High School=780.

Step-by-step explanation:

Let the total students go to the Jones High School be 'x'.

Percentage of students ride the bus=35%

Number of students ride the bus= 273

According to the given question,

35% of x=273

\n\Rightarrow(35)/(100)*\ x=273\n\n\Rightarrow\ x=(273*100)/(35)\n\Rightarrow\ x=780

he total number of students go to Jones High School=780.

when I solved it I got 750.(273÷.35=780)

a bucket holds 243.5 oz of water. The bucket loses 0.3 oz of water per second.In how many seconds will the bucket be 40% full


ok so 
t=time in seconds
therefor the smount lost for t seconds is 0.3 ties t or 0.3t
loss so it is ngative
the question is
243.5-0.3t=40% of 243.5
first, find 40% of 243.5
percent means partst out of 100 so 
'of' means multiply
40% of 243.5=0.4 ties 243.5=97.4
now the question is
for ease, multiply whole equation by 10 to make no decimals
subtract 2435 from b oth sides
divide both sides by -3

answer is 487 seconds (aka 8 mins, 7 secons)

answer is 487 sseconds


487 seconds

Step-by-step explanation:

Ur welcome TEEHEE

What is the greatest two-digit prime number whose digits are a prime and sum to a prime number?


The answer is 11.
11 is a prime number.
1 is a prime number
And the it's two digits ( 1 and 1) sum up to 2 which is also a prime number.

Hope that's correct and it help

Which phrase best describe the translation from the graph y = 2(x-15)^2+3 to the graph of y =2(x-11)^2+3?


f(x - n) - shift the graph n units right

f(x + n) - shift the graph n units left

f(x) - n - shift the graph n units down

f(x) + n - shift the graph n units up


y = 2(x - 15)² + 3

y = 2(x -11)² + 3 = 2(x - 15 + 4)² + 3

Answer: shift the graph of y = 2(x - 15)² + 3 four units left.

Answer:4 units to the left

Step-by-step explanation:

Simplify ratio 1.5:2.5


1.5:2.5=\underbrace{15:25}_(divide\ by\ 5)=\boxed{3:5}