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2 years ago

Help me out with this math problem for 50 points!!!

Mathematics

1 answer:

allsm [11]2 years ago

4 0

Answer:

2(5a+3b)+5a+2b

=10a+6b+5a+2b

=15a+8b

6y+2(3x+5)+2y+3

=6y+6x+10+2y+3

=8y+6x+13

8r+8r^2+6r^2+2r+r

=9r+14r^2

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How would you model 5 x 2/3?

kenny6666 [7]

That is maybe how and my teacher told me that if you have a whole number you can add a line underneath it

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3 years ago

What could be the coordinates of the third vertex, z, of triangle xyz so that it would have a hypotenuse with a length of square

ICE Princess25 [194]

Answer:

$z = (6,-1)$

Step-by-step explanation:

The missing parameters are:

$x = (3,-1)$

$y = (3,5)$

$yz= \sqrt{45$ --- Hypotenuse

Required

The coordinate of Z

First, calculate the distance xy

$xy = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}$

$xy = \sqrt{(3 - 3)^2 + (-1 - 5)^2}$

$xy = \sqrt{0 + 36}$

$xy = \sqrt{36}$

$xy = 6$

By Pythagoras theorem, distance xz is:

$yz^2 = xz^2 + xy^2$

$(\sqrt 45)^2 = xz^2 + 6^2$

$45 = xz^2 + 36$

Collect like terms

$xz^2 =45-36$

$xz^2 =9$

$xz = \sqrt{9}$

$xz = 3$

This means that z is 3 units to the right of x

We have:

$x = (3,-1)$

The rule to determine z is:

$(x,y) \to (x + 3, y)$

So, we have:

$z = (3 + 3,-1)$

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3 years ago

Martha needs 28 strawberries for every 4 smoothies she makes. Complete the table using equivalent ratios

slamgirl [31]

Answer:

28:4

21:3

70:10

Step-by-step explanation:

divide 28 by 4, and of course, do to the bottom what you do to the top. 4 divided by 4 is 1, and 28 divided by 4 is 7.

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then, multiply by the number of smoothies.

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for 10, it's 70:10.

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3 years ago

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Gala2k [10]

y - 3x = 7

can be written as

y = 3x + 7

For every value of x there is a unique value of y. For example when x = 0 y = 3(0) + 7 = 7

Yes it is a function.

In particular it is a one-to-one function.

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3 years ago

is the volume of a cylinder which has the same radius but twice the height greater or less than the original cylinder

blondinia [14]

Definitely, its volume is greater than the original cylinder. Hope it help!

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3 years ago