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anzhelika [568]
2 years ago
5

Need help with these two questions.​

Mathematics
1 answer:
Sindrei [870]2 years ago
3 0

Answer:

Answer is below :)

Step-by-step explanation:

Hope this helps you!

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Y=x+2 y=-3X <br><br>solve system of equations algebraically <br>​
goblinko [34]

Answer:

(x,y) = -1/2 , 3/2

Step-by-step explanation:

Let y = x +2 ----- (1)

y = -3x ------ (2)

Put equal both sides x +2 = -3x

x = -3x -2

x +3x = -2

4x = -2

x = -1/2 Put it in 2nd equation

Y = -3 (-1/2)

y = 3/2

so (x,y) = -1/2 , 3/2

Hope you got it.

Please Mark as Brainliest.

8 0
2 years ago
A sample is random sample is valid
wlad13 [49]
If the sample is random, it is not valid.
8 0
2 years ago
Read 2 more answers
190 = 200^b, make b the subject​
MArishka [77]

Answer:

b = \frac{ln190}{ln200}

Step-by-step explanation:

Using the rule of logarithms

log x^{n} ⇔ nlogx

Given

190 = 200^{b} ( take the natural log ln of both sides )

ln190 = ln200^{b} = bln200 ( divide both sides by ln200 )

\frac{ln190}{ln200} = b

3 0
2 years ago
Help help help please !!
suter [353]

Answer:

\frac{40}{41}

Step-by-step explanation:

Sin = opposite / hypothenuse

Sin A = 40 / 41

Answer: \frac{40}{41}

6 0
2 years ago
Read 2 more answers
What is the slope of the line that passes through ( 1, -19 ) and ( -2,-7
Lapatulllka [165]

Answer:

-4

Step-by-step explanation:

We can find the slope when given two points by using the following

m = (y2-y1)/(x2-x1)

  = (-7--19)/(-2 -1)

   = (-7+19)/(-2-1)

   = 12/-3

   =-4

3 0
3 years ago
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