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Maurinko [17]
3 years ago
14

Use the table to write the equation of each quadratic function.

Mathematics
1 answer:
Alchen [17]3 years ago
4 0

Answer:

i d k

Step-by-step explanation:

You might be interested in
1.
malfutka [58]

Given:

The linear equation is:

2x+2y=2

To find:

The statement that best describes the graph of the given linear equation.

Solution:

The slope intercept form of a linear function is:

y=mx+b            ...(i)

Where, m is the slope anf b is the y-intercept.

We have,

2x+2y=2

It can be written as:

2y=2-2x

y=\dfrac{2-2x}{2}

y=1-x

y=-x+1             (ii)

On comparing (i) and (ii), we get

m=-1,b=1

Therefore, the graph has a slope of -1 and a y-intercept of 1. Hence option D is correct.

5 0
3 years ago
Solve 5 over x minus 5 equals the quantity of x over x minus 5, minus five fourths for x and determine if the solution is extran
Vikentia [17]
Assuming the equation is:
5/(x-5) = x/(x-5) - 5x/4
We first multiply by the LCD: 4(x-5)
20 = 4x - 5x(x-5)
20 = 4x - 5x^2 + 25x
5x^2 - 29x + 20 = 0
(5x - 4)(x - 5) = 0
x = 4/5, 5
Substituting x = 5 gives denominators of 0, which is extraneous.
Substituting x = 4/5 gives a valid equation, so this is the only correct solution.
3 0
3 years ago
Read 2 more answers
PLEASE HELP GIVING MANY POINTS!
NeTakaya

Answer:

  69.01 m

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you ...

  Tan = Opposite/Adjacent

The tangent function is useful for problems like this. Let the height of the spire be represented by h. The distance (d) across the plaza from the first surveyor satisfies the relation ...

  tan(50°) = (h -1.65)/d

Rearranging to solve for d, we have ...

  d = (h -1.65)/tan(50°)

The distance across the plaza from the second surveyor satisfies the relation ...

  tan(30°) = (101.65 -h)/d

Rearranging this, we have ...

  d = (101.65 -h)/tan(30°)

Equating these expressions for d, we can solve for h.

  (h -1.65)/tan(50°) = (101.65 -h)/tan(30°)

  h(1/tan(50°) +1/tan(30°)) = 101.65/tan(30°) +1.65/tan(50°)

We can divide by the coefficient of h and simplify to get ...

  h = (101.65·tan(50°) +1.65·tan(30°))/(tan(30°) +tan(50°))

  h ≈ 69.0148 ≈ 69.01 . . . . meters

The tip of the spire is 69.01 m above the plaza.

3 0
3 years ago
What is the value of x? 0.75x+5−0.5x=3
Mnenie [13.5K]

Answer:

x = −8

Step-by-step explanation:

4 0
3 years ago
What is the probability that a random sample of 17 pregnancies has a mean gestation period within 9 days of the mean?( length of
ozzi

Answer:

0.9864

Step-by-step explanation:

The average sample mean is 295, and the standard deviation is:

σ = 15 / √17

σ = 3.64

The z-scores are:

z = (x − μ) / σ

z₁ = (-9) / 3.64

z₁ = -2.47

z₂ = (9) / 3.64

z₂ = 2.47

So the probability is:

P(-2.47 < Z < 2.47) = P(Z < 2.47) − P(Z < -2.47)

P(-2.47 < Z < 2.47) = 0.9932 − 0.0068

P(-2.47 < Z < 2.47) = 0.9864

6 0
3 years ago
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