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3 years ago

Please help! Add using a number line −2/5 +4/5 = ?

Mathematics

1 answer:

kobusy [5.1K]3 years ago

5 0

$- \frac{2}{5} + \frac{4}{5} = \frac{2}{5}$

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Write a word problem that can be described by the division expression 3÷1/4. Use complete sentences in your answer

AURORKA [14]

The question is simply asking us to create a word problem.
The word problem describing the division expression 3÷1/4 will be:
Given that Annie has 3 oranges and he wants to each orange into quarters, how many quarters will Annie have in total?

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3 years ago

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Given two points M & N on the coordinate plane, find the slope of MN , and state the slope of the line perpendicular to MN .

telo118 [61]

Answer:

Problem 1) $m = \dfrac{1}{4}$ $slope_{perpendicular} = -4$

Problem 2) $m = \dfrac{1}{3}$ $slope_{perpendicular} = -3$

Step-by-step explanation:

$slope = m = \dfrac{y_2 - y_1}{x_2 - x_1}$

$slope_{perpendicular} = \dfrac{-1}{m}$

Problem 1) M(9,6), N(1,4)

$slope = m = \dfrac{6 - 4}{9 - 1} = \dfrac{2}{8} = \dfrac{1}{4}$

$slope_{perpendicular} = \dfrac{-1}{\frac{1}{4}} = -4$

Problem 2) M(-2,2), N(4,-4)

$slope = m = \dfrac{4 - 2}{4 - (-2)} = \dfrac{2}{6} = \dfrac{1}{3}$

$slope_{perpendicular} = \dfrac{-1}{\frac{1}{3}} = -3$

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3 years ago

Find the surface area of the rectangular prism.<br><br> HELP ME PLS ASAP PLS PLZ WITH BOTHE!

Rashid [163]

Answer:

Cube - 600 Rectangular Prism - 350

Step-by-step explanation:

Cube - A=6a^2

Rectangular Prism - A=2(wl+hl+hw)

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3 years ago

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What is 453.028 divided by sin(28) ?

DedPeter [7]

Answer:

964.97

Step-by-step explanation:

Plug the values into a calculator (Make sure your calculator is on degrees, not radians

453.028 / sin(28)

= 964.97

(If this answer helps you, please consider choosing it as the 'brainliest answer'. I would really appreciate it :)

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4 years ago

Find the equation of the line that passes through (4,4) and is parallel to y=2x+4. Leave your answer in the form

Bess [88]

Answer:

y=2x-4

Step-by-step explanation:

If a line is parallel to another line, the only thing that's different in the equation is the y-intercept. Therefore we can solve for the y-intercept using the point (4,4)...

Note that the slope-intercept equation is y=mx+b where b is the y-intercept and m is the slope. x and y are the x and y coordinate pairs.

y=2x+b

4=2(4)+b

4=8+b

b=-4

Therefore the equation of the line that is parallel to y=2x+4 and passes through (4,4) is...

y=2x-4

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2 years ago

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