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3 years ago

Could someone please do this for me ASAP this is for math!

Mathematics

1 answer:

frutty [35]3 years ago

8 0

Answer:

Step-by-step explanation:

$x^{2}$ +x-20

use FOIL

(x - 4)(x+5)

x-4=0

x+5=0

4 and negative 5 are the factors

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Find the coordinates of the midpoint of segment GH with endpoints: G(-2, -8) and H(-3, -12).

Musya8 [376]

Answer:

midpoint = (-2.5 , - 10)

Step-by-step explanation:

midpoint =( ((x1 + x2)/2) , ((y1+y2)/2)) )

= ( ((-2 + -3)/2) ,(( -8 + -10)/2) )

= ( -2.5 , -10)

6 0

2 years ago

A ball is thrown straight up from the top of a building 124 ft tall with an initial velocity of 64 ft per second. The height s(t

algol13

Answer:

246 ft is the maximum height

Step-by-step explanation:

The height h given above is a quadratic function. The graph of h as a function of time t gives a parabolic shape and the maximum height h occur at the vertex of the parabola. For a quadratic function of the form h = a t² + bt + c, the vertex is located at t = - b / 2a. Hence for h given above the vertex in the question s(t) = 124 + 64t − 16t², is at t

t = -64/2(-16) = 64/32 = 2 seconds

Thus, 2 seconds after the object was thrown, it reaches its highest point (maximum value of h) which is given by

h = -16(2)² + 64 (2) + 124 = 246eet

6 0

3 years ago

50pt! The function g(x)=x^2 is transformed to obtain function h: h(x)=g(x-3).

Vlad1618 [11]

Answer:

It's the Option A.

Step-by-step explanation:

h(x) = g(x - 3)

The -3 moves the whole graph of g(x) 3 units horizontally to the right.

5 0

3 years ago

Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per mi

miss Akunina [59]

Answer:

Mean = 0, Standard deviation = 1

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 77.5 beats per minute

Standard Deviation, σ = 11.6 beats per minute

We are given that the distribution of pulse rates of women is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Putting the values, we get,

$z_{score} = \displaystyle\frac{x-77.5}{11.6}$

After, the standardization, that is conversion of all pulse rates of women to z scores, the mean of the distribution is 0 and standard deviation is 1.

Mean = 0, Standard deviation = 1

7 0

3 years ago

Solve. <br> (2/3) (1/4) =

stellarik [79]

You multiply the numerators (top numbers) and separately multiply the (bottom numbers) denominators.

numerator (top number): 2 * 1 = 2

denominator (bottom number): 3 * 4 = 12

Now, we have 2/12 which can be simplified to 1/6.

6 0

3 years ago