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3 years ago

Find the distance between two points (4,6) and (4,-2)

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

Answer:

Step-by-step explanation:

d =sqrt [(x-x)^2+(y-y)^2]

d = sqrt[(4-4)^2+(6 - - 2)^2]

d =sqrt[ (0)+(8)^2]

d = sqrt 64

d = 8

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(-12)/(-3+16/8)^3+2<br> whats the anwer

Naddika [18.5K]

Answer: I think it's 110.

Step-by-step explanation: I think it's 110, but I can't exactly tell the problem, so do please let me know if this isn't it.

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3 years ago

Write two solutions for the following equation 2x+3y=24.

SVETLANKA909090 [29]

Answer: (12, 0) and (0, 8)

Step-by-step explanation:

This equation is in standard form. We can sub in a number for x to solve for y and vice versa.

Let's sub in 0 for x.

$2x+3y=24\\2(0)+3y=24\\3y=24\\\frac{3y}{3} =\frac{24}{3} \\y=8$

When x is 0 y is 8 giving us the coordinate (0, 8).

Now lets sub in 0 for y

$2x+3(0)=24\\2x=24\\\frac{2x}{2} =\frac{24}{2} \\x=12$

When y is 0 x is 12 giving us the coordinate (12, 0)

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3 years ago

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A model car is built on a scale of 2:21 of a real car . If the real car has a height of 1.7 meters , what is the height of the m

bogdanovich [222]

To get from the real value to the model value, you must divide by 21 and times by two (since 21/21 = 1 and 1 x 2= 2 in the ratio) this is the same as multiplying by the fraction 2/21.
So, 1.7 x 2/21 = 17/105 = 0.16m or 16cm

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3 years ago

I need help!!! Please help

insens350 [35]

Answer:

Step-by-step explanation:

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3 years ago

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A consultant has three sources of income—from teaching short courses, from selling computer software, and from advising on proje

Amanda [17]

Answer:

Mean = $79,000

Standard deviation = $25,000

Step-by-step explanation:

Data provided in the question:

Expected annual incomes:

From teaching short courses = $7,000

From selling computer software = $22,000

From advising on projects = $50,000

Standard deviation:

teaching short courses = $3,000

selling computer software = $4,000

advising on projects = $18,000

Now,

it is given that the events are independent

therefore,

Mean = ∑(Expected annual income)

Mean = $7,000 + $22,000 + $50,000

Mean = $79,000

also,

Standard deviation = ∑(standard deviation)

Standard deviation = $3,000 + $4,000 + $18,000 = $25,000

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3 years ago