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2 years ago

Please answer correctly

Mathematics

2 answers:

mrs_skeptik [129]2 years ago

7 0

Answer:

y=2x-1

Step-by-step explanation:

up 2 right 1 for slope

y intercept is -1

melomori [17]2 years ago

7 0

Answer:

$\boxed{(b) \: y = 2x - 1}$

Step-by-step explanation:

<h3>Find the gradient </h3>

( 2,3 ) and ( 0, -1)

$m = \frac{y2 - y1}{x2 - x1} = \frac{ - 1 - 3}{0 - 2} = \frac{ - 4}{ - 2} = 2$

Gradient is 2

<h3>Find linear equation</h3>

y - y1 = m ( x - x1 )

y - 3 = 2 ( x - 2 )

y - 3 = 2x - 4

y = 2x - 4 + 3

$\boxed{y = 2x - 1}$

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Bumek [7]

Answer:

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Step-by-step explanation:

First find out what the check did.

She had $63.44 in her account. Her check caused her to be in the whole

63.44 - 186.56 = -123.12

Now she deposited 1/4 of that amount.

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4 0

3 years ago

The formula p=8n-30 gives the profit p when a number of items n are each sold at $8 and expenses totaling $30 dollars are subtra

andrew11 [14]

Answer:

the answers is n=25. hope this helps

7 0

3 years ago

M*(x+y)+4y/(x^2-xy-y^2)=(x+2y)/(x^2-xy-Y^2),find the value of M

dybincka [34]

Answer: M = $\frac{x-2y}{x+y}$

Step-by-step explanation:

$\frac{M(x+y)+4y}{x^{2}-xy-y^{2} } =\frac{(x+2y)}{x^{2} -xy-y^{2} }$

M (x + y) + 4y = x + 2y (Multiply $x^{2} - xy-y^{2}$ in both sides)

M (x + y) = x + 2y - 4y

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M = $\frac{x-2y}{x+y}$

3 0

3 years ago

8) can u answer this question pls

Vsevolod [243]

Answer: 346.19cm²

Step-by-step explanation:

π= 3.14

Divide 21 (the diameter) by 2 to get the radius( it 's half of the diameter). so the radius is 10.5

Area= πr²

= 3.14x10.5x10.5

= 346.185

So next round up the value you got to the nearest tenth, so when u round up to the nearest tenth you get 346.19

3 0

2 years ago

Identify any outliers) in the data. {57, 54, 63, 65, 59, 64, 48, 65, 49, 55, 47, 53, 68, 60, 40, 57}

Vinil7 [7]

Answer:

Step-by-step explanation:

Data set:

{57, 54, 63, 65, 59, 64, 48, 65, 49, 55, 47, 53, 68, 60, 40, 57}

Step 1. Rearrange the data set from smallest to largest

{40, 47, 48, 48, 49, 53, 54, 55, 57, 57, 59, 60, 63, 64, 65, 68}

Step 2. Find the outliers (a value in a data set that is very different from the other values)

Answer: 40

Explanation:

40 is the only number apart and away out of all of the other numbers

5 0

3 years ago