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3 years ago

You have a point of (2,-3). What is the slope?

Mathematics

1 answer:

Readme [11.4K]3 years ago

7 0

Answer:

You can't tell a slope from a single point. In order to get the slope you would need (2,-3) and another point on your graph. A single point dosn't give you a line therfore you cant find the slope of that line.

Step-by-step explanation:

in any other case to find the slope do rise/run which is the same as y2-y1/x2-x1. Hope this helps!!

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Twice the sum of eight and three times a number is seventy six. What is the number

Dahasolnce [82]

From the question we can deduce the formula to be 16 + 3n = 76

3n - 76 - 16

3n = 60

n = 20

20 is the answer.

3 0

2 years ago

Charlie's weight is nine kilograms greater than his brother's. Together they weigh 99 kilograms. Let x represent the weight of t

siniylev [52]

If the weight of the little brother is x, then the weight of Charles is x + 9

The equation that can be used to determine what each one weighs is:

x + (x + 9) = 99.

Let us now solve it.

x + x +9 = 99

2x + 9 = 99

2x = 99 - 9

2x = 90

x = 90/2

x = 45

Little brother's weight is 45 kg.

Charles' weight will be 45 + 9 = 54 kg

Adding these two weights will give 99kg

4 0

2 years ago

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Please helpppp:( Thanks

arlik [135]

She can simplify the 12 and the 3.

8 0

3 years ago

Show that y=cos(t)y=cos(t) is a solution to (dydt)2=1−y2(dydt)2=1−y2. Enter your answers below in terms of the independent varia

GrogVix [38]

Answer:

$(\frac{dy}{dt})^2=sin^2t$

Step-by-step explanation:

$y=cost$

DE : $(\frac{dy}{dt})^2=1-y^2$

If y is a solution of given DE then it satisfied the DE.

Differentiate w.r.t t

$\frac{dy}{dt}=-sint$

Using the formula

$\frac{d(cosx)}{dx}=-sinx$

LHS: $(\frac{dy}{dt})^2=(-sint)^2=sin^2t$

RHS

$1-y^2=1-cos^2t=sin^2t$

By using the formula

$sin^2t=1-cos^2t$

LHS=RHs

Hence, y is a solution of given DE

$(\frac{dy}{dt})^2=sin^2t$

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3 years ago

Simultaneous equations 5x + 3y= 31 2x + y = 12 a. find for x b. find for y

Anna007 [38]

Answer:

x=5

y=2

Step-by-step explanation:

5x + 3y= 31

-6x - 3y = -36 (multiple by -3)

-x=-5

x=5

2(5)+y=12 or 25 + 3y= 31

10+y=12 3y=6

y=2 y=2

8 0

2 years ago

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