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2 years ago

The points (-2, 1) and (3, y) have a slope of -3. Find the y coordinate of the point.

Mathematics

2 answers:

Lady_Fox [76]2 years ago

8 0

Answer:

Y= -15

Step-by-step explanation:

Alex17521 [72]2 years ago

6 0

Answer:

y = - 14

Step-by-step explanation:

Hello : this line passes through A(-2,1) B(3,y)

the slope is : (YB - YA)/(XB -XA)

(y - 1)/(3 -(-2)) = (y - 1)/5

you have : (y - 1)/5 = -3

y - 1 = -15

y = - 14

the slope is : 2

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Monica [59]

The answer is -14 . i think

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2 years ago

The events committee buys 80 flowers for a school dance. The flowers are a combination of carnations and roses. Each carnation c

Slav-nsk [51]

Answer:

64 carnations and 16 roses.

Step-by-step explanation:

The events committee buys 80 flowers

The flowers are a combination of carnations and roses.

Each carnation costs $0.50 and each rose costs $2.50

The committee spends a total of $72

Solution:

Let there be (c) carnations and (r) roses.

So,

c + r = 80 flowers

and $0.50c + $2.50 = $72

This forms a simultaneous equation:

c + r = 80 ... (i)

0.5c + 2.5r = 72 ... (ii)

Multiplying equation (i) by 0.5 and equation (ii) by 1 gives;

0.5c + 0.5r = 40 ... (i)

0.5c + 2.5r = 72 ... (ii)

Subtracting (i) from (ii) gives;

0c + 2r = 32

2r = 32

r = 32 ÷ 2 = 16

Therefore, there are 16 roses

and 80 - 16 = 64 carnations

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2 years ago

Brian and 3 of his friends need to collect a total of 1,548 pounds of newspaper for a recycling drive. They will each collect th

KonstantinChe [14]

4 people are collecting

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2 years ago

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Help help help help pls

Monica [59]

Answer:

$\theta = 82.2^\circ$

Step-by-step explanation:

$Let \ \angle BAC = \theta$

Opposite = BC ,

Adjacent = AB = x = 3 ,

Hypotenuse = AC = y = 22

Using trigonometric ratios.

$sin \theta = \frac{opposite}{hypotenuse }\\\\cos \theta = \frac{adjacent}{hypotenuse}\\\\tan \theta = \frac{opposite}{adjacent}$

Since we have adjacent and hypotenuse we use cosine's ratio

to find the angle.

$cos \theta = \frac{x}{y} = \frac{3}{22} \\\\\theta = cos^{-1} \frac{3}{22} = 82.16 = 82.2^\circ$

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2 years ago

Find three prime numbers that add up to another prime number.

Illusion [34]

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2 years ago

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