3 years ago

Find the slope of segment AB, A (2,18), B (-2,4)

Mathematics

1 answer:

MariettaO [177]3 years ago

3 0

The formula of a slope:

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

We have the points A(2, 18) and B(-2, 4). Substitute:

$m=\dfrac{4-18}{-2-2}=\dfrac{-14}{-4}=\dfrac{14}{4}=\dfrac{7}{2}$

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DEF rotates 90 degrees clockwise about point A to create D’E’F. Therefore, which equation must be true

Rom4ik [11]

Answer:

m∠EAE ' = m∠FAF '

Step-by-step explanation:

Rotation is a type of transformation referred to a in which the shape of the original object is preserved and the angle of rotation is constant for all the parts of the body.

Thus, when ΔDEF rotates 90° clockwise about point A to create ΔD 'E 'F.

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2 years ago

A bag contains 5 2/5kg of sand. The bag has a hole in it. Every 10 minutes, 1 2/3kg of sand escapes from the bag. After 20 minut

fenix001 [56]

Quantify of sand in a bag =

$= \: 5 \frac{2}{5} \ \:$

$= \frac{(5 \times 5 +2) }{5}$

$= \frac{27}{5} \: kg$

Quantity of sand that escapes in every 10 minutes :-

$= 1 \frac{2}{3} kg$

Quantity of sand that will escape in 20 minutes :-

$= 1 \frac{2}{3} \times 2$

$= \frac{(3 \times 1 + 2)}{3} \times 2$

$= \frac{5}{3} \times 2$

$= \frac{10}{3}$

Quantity of sand that will remain in the sand bag :-

$= \frac{27}{5} - \frac{10}{3}$

$= \frac{(27 \times 3)}{15} - \frac{(10 \times 5)}{15}$

$= \frac{81}{15} - \frac{50}{15}$

$= \frac{31}{15}$

$= 2 \frac{1}{5} \: kg$

$therefore \: , \: 2 \frac{1}{5} \: kg \: sand \: is \: left \: in \: the \: bag \: .$

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2 years ago

Please help, 16 points and i’ll mark you as brainlest

ollegr [7]

I think this is the answer, sorry I am not 100% sure

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2 years ago

X² – 2x - 15 / x² - 6x+5

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Answer:

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Which is the length of side AD?<br> 1 unit<br>4 units<br>5 units<br>6 units

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The length side of AD is 4 units

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2 years ago

Read 2 more answers