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sergejj [24]
3 years ago
13

Step by step on how to do this

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0
60÷24= 2.5
50÷20= 2.5
if both have 2.5 then that means that 30÷2.5= to line AC which would be 12
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How do I get the answer y= 2x^2+9x-5
guapka [62]

Answer:

Quadratic Formula

so

x = -5

and

x = 0.5

Step-by-step explanation:

Whenever you see a problem in this form, which you will see a lot of, you can try to factor it or use the "least squares" method or what have you, but those won't always work, unfortunately.

Fortunately, the quadratic formula will never fail you with quadratic expressions.

This is the Quadratic Formula

x = \frac{-b \frac{+}{-} \sqrt{b^2-4ac}  }{2a}

a is the the number on the variable with the exponent ^2

b is the number on the variable with no exponent

c is the third number

a and b cannot be equal to 0; c can be

Since we're looking for a number with an equation that has a square root in it, we're going to get two answers. These two answers come from the radical being separately added AND subtracted from the radical. It's basically two problems.

Plugging  in our numbers to this equation gives us x values of -5 and 0.5. This will always work with polynomials with factors of ^2 in them.

If you have a TI-84 calculator or newer, there's a tool on it that will factor polynomials like this one for you just by giving it the numbers.

7 0
3 years ago
The state of Georgia has about 170 people per square mile. The area of Georgia is 59,425 square miles. What is the population of
kotykmax [81]
It should be about 10 million 

7 0
3 years ago
Select the correct answer.<br> Which graph represents the given exponential function?
Allushta [10]

Answer:

the ans is C..... good luck

7 0
3 years ago
There were 60 runners to start the race. In the first half of the race,1/3 of them dropped out. In the second half of the race,1
Verizon [17]
In the question, it is already given that the total number of runners in the race is 60 and out of them 1/3 dropped out in the first half. In the second half 1/4 of the remaining runners dropped out.
Now
Total number of runners in the race = 60
Number of runners that dropped out in the first half = 1/3 * 60
                                                                                   = 20
Number of runners remaining = 60 - 20
                                                 = 40
Number of runners dropping out in the second half = 40 * 1/4
                                                                                 = 10
Then the number of runners that finished the race = 40 - 10
                                                                                 = 30
Then 30 runners completed the race.
5 0
3 years ago
Read 2 more answers
Which of the following equations represents the line with a slope of -7/4 and a y-intercept of -11?
san4es73 [151]

Answer:

y = -7/4x - 11

Step-by-step explanation:

formula is y = mx + b

m is the slope

b is the y intercept

y = -7/4x -11

which is the first one

3 0
2 years ago
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