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balu736 [363]
2 years ago
6

Please help me on my homework. Thanks!

Mathematics
1 answer:
ycow [4]2 years ago
8 0
I dont uderstand the question
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Use the drawing tool(s) to form the correct answer on the provided graph.
lorasvet [3.4K]

9514 1404 393

Answer:

  see below

Step-by-step explanation:

Setting x=0, you can find the y-intercept:

  y = 4

Setting y = 0, you can find the x-intercept:

  2x = 4

  x = 2

The boundary line can be drawn through these intercept points, (0,4) and (2,0). Because the "equal to" case is not included, the boundary line will be dashed.

The y variable is on the open side of the comparison symbol (y>), so the shading is above the boundary line. That is where y-values are greater than those on the line.

3 0
3 years ago
If f(x)=3x, what is f^-1(x)?
-BARSIC- [3]

Answer: -1(x)] = x

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
In Tucson, Arizona, the air pollution index averages 62.5 during the year with a standard deviation of 18. assuming normality, t
andrew-mc [135]
The interval of 95% confidence, for normally distributed variables, is average +/- 2 * standard deviation:

(-2*standard deviation + average , average + 2*standard deviation)

(-2*18 + 62.5 , 2*18 + 62.5) = (-36 + 62.5 , 36 + 62.5) = (26.5 , 98.5)

Answer: option D)


8 0
2 years ago
Which statement about the following equation is true? 3x2 â€"" 8x 5 = 5x2.
kati45 [8]

The discriminant is greater than 0, so there are two real roots and it can be determined by using nature of roots.

Given that,

Equation; \rm 3x^2 - 8x + 5 = 5x^2

We have to determine,

Which statement about the following equation is true?

According to the question,

To determine the true statement about the equation following all the steps given below.

Equation; \rm 3x^2-8x+5=5x^2

Simplify the equation for the roots of the equation,

\rm 3x^2-8x+5=5x^2\\\\\rm5x^2- 3x^2+8x-5=0\\\\ 2x^2+8x-5=0\\\\ 2x^2+8x-5=0\\\\2x^2+8x=5\\\\2x(x+4)=5\\\\Then, \ 2x = 5, \ \ x = \dfrac{5}{2}  \\\\And\ \  x+4=5, \ \  x=5-4, \ \ x=1

The equation has two real roots and x is 1 and 5/2.

Hence, The discriminant is greater than 0, so there are two real roots.

For more details about Discriminate refer to the link given below.

brainly.com/question/10706429

5 0
2 years ago
Determine the solution for x^2-3x-28 > or equal to 0
omeli [17]
The solutions are:
x = −4,x = 7
Explanation:
X^2−3x−28= 0
We can first factorise this expression by splitting the middle term and then find the solutions:
= x^2−7x+4x−28=0

= x( x−7) + 4( x − 7)=0
=(x+4)(x−7)
Now, we can equate the two factors with zero and find the solutions:
x+4=0,x =−4x−7=0,x=7
8 0
2 years ago
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