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3 years ago

What is the fraction of 52 out of 208. HURRY

Mathematics

1 answer:

Eva8 [605]3 years ago

8 0

Answer:

uhm 1/4???

Step-by-step explanation:

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The function f(x) = −x^2 − 5x + 50 shows the relationship between the vertical distance of a diver from a pool's surface f(x), i

pychu [463]

Set the function to equal zero:

$-x^2 - 5x + 50 = 0$

To find the zeros, or solutions, to this problem, we will use the quadratic formula:

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

Plug the values into the equation:

$a = -1, b = -5, c = 50$

$x=\frac{5\pm\sqrt{-5^2-4(-1)(50)}}{2(-1)}$

$x=\frac{5\pm\sqrt{25+200}}{-2}$

$x=\frac{5\pm15}{-2}$

Solve for both plus and minus:

$\frac{5 + 15}{-2} = \frac{20}{-2} = -10$

$\frac{5 - 15}{-2} = \frac{-10}{-2} = 5$

$x = -10, x = 5$

The question cannot use a negative value for x, as the diver cannot dive a negative distance from the board.

The answer is 'x = 5; the diver hits the water 5 feet away horizontally from the board', because x represents the horizontal distance away from the board.

4 0

3 years ago

2) 4 tot he power of 3 = _______

Ghella [55]

Answer:

Step-by-step explanation:

4^3=64

4*4=16

16*4=64

8 0

3 years ago

Determine the probability of landing on tails at most 33 times if you flip a fair coin 80 times. Round your answer to the neares

grigory [225]

Answer:

0.0728177272

Step-by-step explanation:

Given :

Number of flips = 80

Probability of landing on tail at most 33 times ;

Probability of landing on tail on any given flip = 1 / 2 = 0.5

This a binomial probability problem:

Hence ;

P(x ≤ 33) = p(x=0) + p(x=1) +... + p(x = 33)

Using a binomial probability calculator :

P(x ≤ 33) = 0.0728177272

7 0

3 years ago

Please help me on this

Marizza181 [45]

Answer: m=2.8

Step-by-step explanation:

You can reverse the equation and instead solve...

4-1.2 which equals 2.8.

m=2.4

8 0

3 years ago

Read 2 more answers

Use the three steps to solve the problem. Joe is 10 years older than James. In 8 years, twice Joe's age will equal three times J

GarryVolchara [31]

x = Joe's age and y = James's age
Joe is 10 years older than James - equation - x = y + 10
In 8 years twice Joe's age will equal three times James's age - equation -
2(x+8) = 3(y+8)

2(x+8) = 3(y+8) 
2(y + 10 +8) = 3(y+8) { substitute y + 10 for x 
2(y + 18) = 3(y + 8) 
2y + 36 = 3y + 24 
12 = y 

Joe is 22 and James is 12.

7 0

3 years ago