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JulsSmile [24]
3 years ago
10

Which of these is an irrational number?

Mathematics
1 answer:
SVEN [57.7K]3 years ago
8 0

Answer: A

Step-by-step explanation:

Pi is irrational

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Solve for n.<br> 7 + 2n<br> ||<br> =<br> submit
Lunna [17]

Answer:

2

Step-by-step explanation:

7+2n = 11

2n = 11-7

2n = 4

n = 4/2

therefore n = 2

8 0
1 year ago
The results of a survey indicate 50% of seventh-graders watch at least one movie
Kay [80]

Answer:

25 students

Step-by-step explanation:

50% of 50 is 25  

50/2 = 25

7 0
3 years ago
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PLEASE HELP! Given the function f(x) = 3x2 − 4, what is f(-2)?
EleoNora [17]

Answer: Variant C


Step-by-step explanation:

f(x) = 3x^2 − 4

For finding f(-2) just replace x with - 2 like this:

f(-2)=3*((-2))^2-4=3*4-4=12-4=8

5 0
3 years ago
Write the equation of a line perpendicular to 2x + 3y = 4 and passing through (-3,-5).
Tasya [4]

Answer:

Step-by-step explanation:

A line perpendicular to the given line has a slope that is the negative inverse of the reference line.  

Rewrite the given equation in the format of y=mx+b, where mi is the slope and b is the y-intercept (the value of y when x = 0.

2x + 3y = 4

3y=-2x+4

y = -(2/3)X + (4/3)

The reference slope is -(2/3).  The negative inverse is (3/2), which will be the slope of a perpendicular line.  We can write the new line as:

y = (3/2)x + b

Any value of b will still result in a line that is perpendicular.  But we want a value of b that will shift the line so that it intersects the point (-3,-5).  Simply enter this point in the above equation and solve for b.

y = (3/2)x + b

-5 = (3/2)(-3) + b

-5 = -(9/2) + b

-5 = -4.5 + b

b = - 0.5

The equation of the line that is perpendicular to 2x + 3y = 4 and includes point (-3,-5) is

y = (3/2)x - 0.5

6 0
1 year ago
You have a total of 42 math and science problems for homework you have 10 more math problems and science problems how many probl
Kipish [7]
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3 0
2 years ago
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