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3 years ago

What’s the equation of line ? y =x +

Mathematics

1 answer:

Likurg_2 [28]3 years ago

3 0

Answer:

y=3/4x-2

Step-by-step explanation:

two points from graph (0-2) and (8,4)

find slope m: y2-y1/x2-x1

m=4+2/8-0

m=6/8=3/4

x=0 then y=b=-2

y=3/4x-2

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A plant grows at a constant rate of __ cm per day.

devlian [24]

Plant grows at 3CM per day

equation: y= 3x

21 is y so 21= 3x. divide by 3 so it's been 7 days

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3 years ago

Hey, help me with this pls i only have 10 minutes. 30 points each :)

vlada-n [284]

Answer:

y=-2x

Step-by-step explanation:

First you want to remember rise over run. Your rise is -2 and your run is 1. So -2/1 is your answer. And -2/1 is equal to -2.

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3 years ago

Read 2 more answers

Eddi Din [679]

Answer: The relative frequency of column A in group 1= $0.75$

The relative frequency of column B in group 1= $0.25$

The relative frequency of column A in group 2= $0.56$

The relative frequency of column B in group 2= $0.44$

Step-by-step explanation:

The relative frequency is the ration of each frequency by the total value in particular group.

For group 1 : Total =102+34=136

The relative frequency of column A in group 1= $\frac{102}{136}=0.75$

The relative frequency of column B in group 1= $\frac{34}{136}=0.25$

For group 2 : Total =18+14=32

The relative frequency of column A in group 2= $\frac{18}{32}=0.5625\approx0.56$

The relative frequency of column B in group 2= $\frac{18}{32}=0.4375\approx0.44$

7 0

3 years ago

Subtract these fractions. 3/13−1/23

disa [49]

The answer would be 56/299

6 0

3 years ago

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Solve by quadratic formula: <br> 8a2 + 6a + 5=0

Veseljchak [2.6K]

Answer:

$x = \frac{-3 \pm i\sqrt{31}}{8}$

Step-by-step explanation:

Quadratic Formula: $x = \frac{-b \pm \sqrt{b^2-4ac} }{2a}$

√-1 is imaginary number i

Step 1: Define Quadratic

8a² + 6a + 5 = 0

a = 8

b = 6

c = 5

Step 2: Plug into Quadratic Formula

$x = \frac{-6 \pm \sqrt{6^2-4(8)(5)} }{2(8)}$

Step 3: Solve

$x = \frac{-6 \pm \sqrt{36-160} }{16}$

$x = \frac{-6 \pm \sqrt{-124} }{16}$

$x = \frac{-6 \pm \sqrt{124} (\sqrt{-1} )}{16}$

$x = \frac{-6 \pm i\sqrt{124}}{16}$

$x = \frac{-6 \pm 2i\sqrt{31}}{16}$

$x = \frac{2(-3 \pm i\sqrt{31})}{16}$

$x = \frac{-3 \pm i\sqrt{31}}{8}$

8 0

4 years ago

What’s the equation of line ? y =__x + __

What’s the equation of line ? y =x +