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2 years ago

What is the anyswer to this quiestion 9 + 10

Mathematics

2 answers:

Makovka662 [10]2 years ago

8 0

Answer:

Step-by-step explanation:

Alexus [3.1K]2 years ago

7 0

Answer:

Step-by-step explanation:

And that is you answer

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Which equation would give the graph below? (photo)

emmasim [6.3K]

Answer:

Step-by-step explanation:

Y= 4^2 - 5 x 4 + 4 = 0

5 0

3 years ago

Solve for the roots in simplest form by completing the square x^2-12x+20=0

Alex17521 [72]

Answer:

x = 10 or x = 2

Step-by-step explanation:

Solve for x:

x^2 - 12 x + 20 = 0

Hint: | Solve the quadratic equation by completing the square.

Subtract 20 from both sides:

x^2 - 12 x = -20

Hint: | Take one half of the coefficient of x and square it, then add it to both sides.

Add 36 to both sides:

x^2 - 12 x + 36 = 16

Hint: | Factor the left hand side.

Write the left hand side as a square:

(x - 6)^2 = 16

Hint: | Eliminate the exponent on the left hand side.

Take the square root of both sides:

x - 6 = 4 or x - 6 = -4

Hint: | Look at the first equation: Solve for x.

Add 6 to both sides:

x = 10 or x - 6 = -4

Hint: | Look at the second equation: Solve for x.

Add 6 to both sides:

Answer: x = 10 or x = 2

5 0

3 years ago

According to the Department of Transportation, 27% of domestic flights were delayed in the last year at JFK airport. Five flight

Mars2501 [29]

Answer:

The probability that all the five flights are delayed is 0.2073.

Step-by-step explanation:

Let X = number of domestic flights delayed at JFK airport.

The probability of a domestic flight being delayed at the JFK airport is, P (X) = p = 0.27.

A random sample of n = 5 flights are selected at JFK airport.

The random variable X follows a Binomial distribution with parameters n and p.

The probability mass function of X is:

$P(X=x)={5\choose x}0.27^{x}(1-0.27)^{5-x};\ x=0,1,2...$

Compute the probability that all the five flights are delayed as follows:

$P(X=5)={5\choose 5}0.27^{5}(1-0.27)^{5-5}=1\times 1\times 0.207307=0.2073$

Thus, the probability that all the five flights are delayed is 0.2073.

4 0

3 years ago

What sum is represented by the following number line?

PilotLPTM [1.2K]

Answer:

B.) 2 3/4 + (-4 1/4) = -1 2/4

Step-by-step explanation:

blue line: forward with positive + $2\frac{3}{4}$

red line: backward with negative - $4\frac{1}{4}$

so the number line follows: $2\frac{3}{4}$ + - $4\frac{1}{4}$ = -1 2/4

4 0

2 years ago

Read 2 more answers

Write an equation in standard form of a quadratic function that has x-intercepts -2 and 5 and k=-4

bulgar [2K]

Answer:

-2x + 5 = -4k

Step-by-step explanation:

8 0

3 years ago