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Mnenie [13.5K]
3 years ago
13

If two of the four expressions x + y, x + 5y, x - y, and 5x - y are chosen at random, what is the probability that their product

will be of the form of x^2 - (by)^2, where b is an integer?
A) 1/2
B) 1/3
C) 1/4
D) 1/5
E) 1/6
Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0

Answer:

his father is the best in the country to the right to be able for

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A bicycle wheel has a diameter of 24inches. <br> what is the area of the wheel?
goldfiish [28.3K]

Answer:

\large\boxed{A=144\pi\ in^2\approx452.16\ in^2}

Step-by-step explanation:

A diameter is two times longer than a radius. Therefore, if the diameter

d = 24in, then the radius r = (24in) : 2 = 12in.

The formula of an area of a circle:

A=\pi r^2

Substitute:

A=\pi(12)^2=144\pi\ in^2

\pi\approx3.14

Then

A\approx(144)(3.14)=452.16\ in^2

5 0
3 years ago
Which expression models the following<br> phrase: "an hourly wage of $12.75"?
inessss [21]

Answer:

h = number of hours worked

m = total wage of worked hours

12.75h = m

8 0
3 years ago
20 points <br><br> What do you remember about types of angles?
Allushta [10]

An acute angle is one that measures LESS than 90˚

An obtuse angle is one that measures between 90˚ and 180˚

A reflex angle is an angle that measures between 180˚ and 360˚

There are other many types of angles such as alternate angles and corresponding angles, but those 3 are the main ones.

Have a great day <3

8 0
3 years ago
Can someone plz help me out i rlly need to pass this
vredina [299]

Answer:

x= 60.4

Step-by-step explanation:

y = 60.4

z= 29.6

x= 60.4

By complementary angle rule

4 0
2 years ago
1. since A^2= 36x^2, a=?<br> 2. since b^2= 49, b=?
Wewaii [24]

Answer:

D

Step-by-step explanation:

36x² - 49 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

then

36x² - 49

= (6x)² - 7²

= (6x - 7)(6x + 7)

Thus 6x - 7 is a factor of the expression

7 0
3 years ago
Read 2 more answers
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