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2 years ago

Please help please help please help please help please help please help please help please help

Mathematics

2 answers:

almond37 [142]2 years ago

7 0

Y=-3x-6 I think is the answer

Alika [10]2 years ago

6 0

Answer: y = -3x-6

Step-by-step explanation:

The slope is shows that it's parallel, and the y intercept goes through the cordinates

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khan academy is giving me only this explanation but won't go into detail and I cannot understand it for the life of me. how do I

Setler [38]

Answer:

12 - 4i

Step-by-step explanation:

-2i ( 2+6i)

Distribute

-2i * 2 + -2i *6i

-4i - 12 i^2

We know that i^2 = -1 so replace it

-4i - 12(-1)

-4i + 12

Then put in the order a+bi where the real number comes first and the imaginary number comes last

12 - 4i

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2 years ago

Anyone help,easy questions ,10 points !!!

Usimov [2.4K]

#21 the answer is does √ 9^2 + 2^2

a^2 + b^2 = c^2

9^2 + 2^2 = c^2

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3 years ago

What is the percentage equivalent of 1.48?Select one of the options below as your answer: A. 148% B. 1.48% C. 1480% D. 14.8%

Nat2105 [25]

To find a percent from a decimal, you multiply the decimal by 100. So, the answer would be A.

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2 years ago

The points A BC :(2, 2,1), :(1,1,3), :(2,0,5) − are the vertices of a right triangle. The radius of the sphere with center at th

ElenaW [278]

Answer:

r=1

Step-by-step explanation:

First we need to know the length of each side of the triangle, so we use the formula of the vector modulus:

$|AB|= \sqrt{(b_{1}-a_{1})^{2}+(b_{2}-a_{2})^{2}+(b_{3}-a_{3})^{2}$

By doing so, we find:

$|AB|=\sqrt {6}\\|BC|=\sqrt {6}\\|AC|=2\sqrt {5}$

With this we know that the triangle is not right, but, we assume the longest side as the hypotenuse of the problem.

As we have two equal sides, we know that the line between point |AB| and the center of the hypotenuse is perpendicular, therefore, we can calculate it using Pythagoras theorem:

$|BC|^{2}=r^{2}+(\frac{|AC|}{2})^{2}\\\\r^{2}=|BC|^{2}-(\frac{|AC|}{2})^{2}\\\\r^{2}=(\sqrt{6})^{2}- (\frac{2\sqrt{5}}{2})^{2}\\\\r^{2}=6-5=1\\r=1$

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2 years ago

Juan's company spent $ 2,350 on an event.They spent about $2,500 on food and about $900 on entertainment.What could the actual c

kodGreya [7K]

The highest amount it could be is 2,499 + 899= 3,898 which could be rounded to 3,900

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3 years ago