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Gelneren [198K]
3 years ago
6

Pls help me with these 2 math question will mark brainiest.

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

3) B

4) A

Step-by-step explanation:

3)

<u>Formula</u>: y = mx + b

<u>Slope</u>: \frac{-3 - 1}{-4 - (-2)} =2

<em>Next, I substituted the numbers from both the chart and the slope.</em>

y=2x+b

(x, y) --> (1, 7)

\\7=2(1)+b\\

7=2+b

b=5\\

<em>Your final equation should be, </em>y=2x+5.

4)

<em>From the graph you can see (0, 4) is the y-intercept and the spaces are moving up twice and once to the right, making the slope 2. </em>

<em>Your answer should be, </em>y=2x+4.

zalisa [80]3 years ago
6 0
I’m not sure what the first one is, but number 4 is A) y=2x+4
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4 years ago
1. A cheetah can run at a top velocity of 31 m/s and has a mass of 47 kg. What is the cheetahs kenetic energy?
Naily [24]

Answer:

1. 22583.5 J

2. 1248 kg

3. 78.09 m/s

Step-by-step explanation:

The formula for kinetic energy is ;

K.E = 1/2* m * v²

Where m is the mass and v is the velocity

1.

K.E = 1/2 * m*v²

K.E = 1/2 * 47 * 31²

K.E = 22583.5 J

2.

Velocity = 9.78 m/s.

Kinetic energy = 60,800 J

To get mass, apply the formula as;

K.E = 1/2 * m*v²

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Mass = 1248 kg

3.

K.E = 143.3 J

Mass = 0.047 kg

Apply the formula;

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3 years ago
Fred is making a fruit salad the ratio of cups of peaches to cups of cherries is 2 to 3 how many cups of peaches will Fred need
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Answer:

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Step-by-step explanation:

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3 years ago
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