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Andreas93 [3]
2 years ago
15

Brenda and Michael simplify the expression, as shown below.

Mathematics
2 answers:
prisoha [69]2 years ago
7 0
It looks like Brenda did since Michael forgot to take out the parenthesis<span />
podryga [215]2 years ago
6 0

Answer:

Brenda :/?

Step-by-step explanation:

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A random number generator is used to select an integer from 1 to 100 ​(inclusively). What is the probability of selecting the in
natima [27]

Answer:

The correct answer is zero.

Step-by-step explanation:

A random variable generator selects an integer from 1 to 100 both inclusive leaves us with total number of possible sample as 101.

We need to find the probability of selecting the integer 194.

The probability of selecting 194 from the sample is zero as the point does not exist in the random variable generator. Thus we can never pick 194 from the random variable generator giving us the probability a zero.

5 0
2 years ago
On a Saturday, a library checked out 52 books. If 24 of the books were fiction, what is the ratio of non-fiction books to fictio
mariarad [96]
6:7
Steps:
52-24=28
24:28
24÷4 : 28÷4
6 : 7
8 0
3 years ago
a globe has a diameter of 24 inches. a smaller globe has a diameter of 18 inches. What is the surface are to volume ratio of the
faust18 [17]

Answer:

1 pi: 3pi

Step-by-step explanation:

Step 1: Formula of surface area and volume of sphere

Surface area of sphere = 4 x pi x r^2

Volume of sphere = <u>4</u> x pi x r^3

                                 3

Step 2: Apply values in the formula

r = radius

radius = diameter/2

r=18/2 = 9

S.A = 4 x pi x 9^2

S.A = 324pi

Volume = <u>4</u> x pi x 9^3

                3

Volume = 972pi

Step 3 : Show in ratio

Surface area : Volume

324pi : 972pi

= 1 pi: 3pi

6 0
3 years ago
Determine which line the point (2, -1) lies on. y = 2x + 1 y = x + 5 y = 2x - 5 y = x - 2
inna [77]

To determine which line the point lies on, you can just plug in one of the numbers into the equations to see if it equals out.

(2, -1)  I will use the 2 and plug it in for x in the equation.

y = 2x + 1

y = 2(2) + 1

y = 5            The point does not lie on this line because when x = 2, y = 5  (2, 5)

y = x + 5

y = 2 + 5

y = 7          The point does not lie on this line because when x = 2, y = 7  (2, 7)

y = 2x - 5

y = 2(2) - 5

y = 4 - 5

y = -1           The point does lie on this line because when x = 2, y = -1  (2, -1)

y = x - 2

y = 2 - 2

y = 0      The point does not lie on this line because when x = 2, y = 0  (2, 0)

3 0
3 years ago
A park designer wanted to place a fountain so that it was close to both the slide and the swings. Refer to the coordinate grid s
Kay [80]

Answer:

200 ft.

2 jumps

Step-by-step explanation:

The slide is placed at coordinates (-2,0) and the fountain is placed at coordinates (-2,-2).

(A) Therefore, using the distance between two known points formula, the distance from the slide to the fountain is given by  

\sqrt{(-2 - ( -2))^{2} + (-2 - 0)^{2}} = \sqrt{(0 + 4)} = 2 units.

Now, given that each unit on the grid represents 100 ft.

So, the distance from slide to the fountain is (100 × 2) = 200 ft. (Answer)

(B) Now, if each jump = 100 ft, then the slide is 2 jumps apart from the fountain. (Answer)

We know the distance between two known points on the coordinate plane (x_{1},y_{1}) and (x_{2},y_{2}) is given by the following formula

Distance = \sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2}  )^{2}}

4 0
3 years ago
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