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4 years ago

An endpoint of a line segment is (4,5) and the midpoint of the line segment is (3, -2). Find the other endpoint.

Mathematics

1 answer:

Makovka662 [10]4 years ago

7 0

Answer:

(2,-7)

Step-by-step explanation:

$(4 + x) \div 2 = 3 \\ 4 + x = 6 \\ x = 2$

$(5 + y) \div 2 = - 2 \\ 5 + y = - 4 \\ y = - 7$

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So is it just me or is my inbox getting notifications and nothing is there????

zubka84 [21]

Answer: Mine is like that a well, It's just notification overall ain't nobody messaging you.

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3 years ago

I need help with this problem will mark as brainliest

Arada [10]

Answer:

The shop can cut the cost of production per sandwich to $3.75. The revenue function would then be defined as R(x)=9x.

Step-by-step explanation:

We want to make as big profit as possible by making as little sandwiches as possible. This means that we want the profit, which is $revenue- production\: cost$ to be as big as possible.

For the first choice the profit per sandwich is $8.25-4=4.25$ dollars.

For the second choice the profit per sandwich is $9-3.75=5.25$ dollars.

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3 years ago

Antibiotics in Infancy

leonid [27]

Answer:

e)The information from the sample does not give enough information to support that more than 70% of Canadian children receive antibiotics during the first year of life

Step-by-step explanation:

The proportion we will use for the test is p = 70 %

From a random sample we got

n = 616

x = 438 then p₁ = 438/616 p₁ = 0,71 p₁ = 71 %

Then q₁ = 1 - p₁ q₁ = 1 - 0,71 q₁ = 0,29 q₁ = 29 %

a) Hypothesis test:

Null hypothesis H₀ p₁ = p

Alternative hypothesis Hₐ p₁ > p >70 %

CI = 95 % significance level α = 5 % α = 0,05

z(c) for α = 0,05 from z-table is z(c) = 1,64

b) To calculate z(s) = ( p₁ - p ) / √ p₁*q₁ / n

z(s) = ( 0,71 - 0,70 )/ √ 0,71*0,29/616

z(s) = 0,01 /0,01828

z(s) = 0,547 ≈ 0,55

c) p-value for z(s) is from z-table p-value ≈ 0,7088

d) p-value > 0,05 then we accept H₀ we don´t have enough evidence to reject H₀

e)The information from the sample does not give enough information to support that more than 70% of Canadian children receive antibiotics during the first year of life

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3 years ago

Simplify. -y -7x + 7y The simplified expression is ___y - ____x.

goblinko [34]

Answer:

the simplified expression is: 6y-7x

Step-by-step explanation:

-y+7y= 6y

-7x

= 6y-7x

8 0

3 years ago

Find the product please i need it ?

Ipatiy [6.2K]

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Step-by-step explanation:

63 x 45=2835

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3 years ago