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2 years ago

Help, please! (Screenshot included.)

Mathematics

1 answer:

Gnoma [55]2 years ago

8 0

Answer:

the fourth and fifth one

Step-by-step explanation:

y=3/2x+3

3x-2y=-6

subtract 3x from each side

-2y=-3x-6

divide each side by -2

the two negatives cancels it out to make it positive

y=3/2x+3

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Write an equation of the line that passes through the given points. (−3, 5), (0, −1)

frutty [35]

Answer:

Step-by-step explanation:

(-1 - 5)/(0 + 3)= -6/3 = -2

y - 5 = -2(x + 3)

y - 5 = -2x - 6

y = -2x - 1

6 0

2 years ago

Converting Mixed Numbers to Improper Fractions.

andrew11 [14]

Just multiply the denominator and the whole number then add the numerator

23/9
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2 years ago

A recently admitted class of graduate students at a large state university has a mean GRE verbal score of 650 with a standard de

hjlf

Answer:

The answer is below

Step-by-step explanation:

The z score is a score used to determine the number of standard deviations by which the raw score is above or below the mean, it is given by the equation:

$z=\frac{x-\mu}{\sigma} \\\\\mu=mean, \sigma=standard\ deviation,x=raw\ score\\\\for\ a\ sample\ n:\\\\z=\frac{x-\mu}{\sigma/\sqrt{n} }$

Given that μ = 650, σ = 50. To find the probability that 5 students who have a mean of 490, we use:

$z=\frac{x-\mu}{\sigma/\sqrt{n} } =\frac{490-650}{50/\sqrt{5} } =-7.16$

From the normal distribution table, P(x < 490) = P(Z < -7.16) = 0.0001 = 0.01%

Since only a small percentage of people score about 490, hence the local newspaper editor should write a scathing editorial about favoritism

4 0

2 years ago

Find the volume 10m 15m 15m 24m

yarga [219]

Answer:

The volume of this figure = 1800 m ³

Step-by-step explanation:

The volume of prism =( base × height × length ) / 2

=> (15 × 10 × 24 ) /2

=> (3600)/2

=> 1800 m³

6 0

1 year ago

What is the surface area of this triangular prism shown above?

PIT_PIT [208]

To find the surface are of the base: 8 * 8 = 64/2(becasue its a triangle not a square base) = 32.
To find the surface are of the 3 other faces, 12 * 8 = 96/2 = 48 * 3(for the 3 sides) = 144.
The entire surface area is 176.

4 0

3 years ago