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3 years ago

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Mathematics

1 answer:

Darya [45]3 years ago

7 0

Answer:ummmmmmmmmmmmm

Step-by-step explanation:

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Which is the equation of a line that has a slope of į and passes through point (2, -3)?

Hoochie [10]

Answer:

o Y =1/x+2

please mark as brainliest

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3 years ago

What is the area of triangle ABC? A(2,1) B(4,7) C(6,3)

Helen [10]

Answer: 10

Step-by-step explanation:

It appears that $\overline{AC} \perp \overline{BC}$ , so to check if this is the case, we can use the slope formula.

$m_{\overline{AC}}=\frac{3-1}{6-2}=\frac{1}{2}\\m_{\overline{BC}}=\frac{3-7}{6-4}=-2$

Since these slopes are negative reciprocals, we can see that this is the case. So, we can take $\overline{AC}$ as the base of the triangle and $\overline{BC}$ as the height of the triangle, and then use the formula $A=\frac{1}{2}bh$ .

Using the distance formula,

$AC=\sqrt{(6-2)^{2}+(3-1)^{2}}=\sqrt{16+4}=2\sqrt{5}\\BC=\sqrt{(4-6)^{2}+(7-3)^{2}}=\sqrt{4+16}=2\sqrt{5}$

So, the area is $\frac{1}{2}(2\sqrt{5})(2\sqrt{5})=\boxed{10}$

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2 years ago

HELP ME PLEASE WITH 3/6 OF 56935=

ser-zykov [4K]

Answer:

28467.5

Step-by-step explanation:

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3 years ago

A chessboard has 64 squares. George places 1 grain of rice on the first square, 2 grains on the second square, 4 grains on the t

Dmitrij [34]

The number of grains on the Nth square Is 2^(N-1). There are 512 grains on the 10th square alone, and 1,023 of them on all 10 squares together.

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3 years ago

Read 2 more answers

Albert wants to buys some pens. He is comparing 4 different packs of pens. The number of pens in each pack and the cost of the p

Musya8 [376]

Answer:

There are 2 red pens in each pack

There are 3 blue pens in each pack

Step-by-step explanation:

we know that

270=2*3^{3} *5

180=2^{2}*3^{2}*5

Find the Greatest Common Factor (GCF)

The GCF is equal to------> 2*3^{2}*5=90

the greatest number of packs she can make is 90

Find the number of red pens in each pack 180/90=2 red pens

Divide the total number of red pens by the total number of packs

Find the number of blue pens in each pack 270/90=3 blue pens

Divide the total number of blue pens by the total number of packs

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3 years ago