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3 years ago

Roger will flip a coin 3 times. which 2 events are disjoint?

1 answer:

5 0

The two events that are disjoint or mutually exclusive is getting a head and a tail at the same time. It because if you are going to flip a coin the result can either be head or tail but not both. The value of the two events occurring at the same is 0.

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Which graph represents the solution sent to this system of equations?

natta225 [31]

Answer:

0 Graph C

Step-by-step explanation:

Hope this helps:)

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3 years ago

Please Help Question in picture

Yuki888 [10]

Answer:

(-3, 5.5)

Step-by-step explanation:

To find the midpoint, you add up the corresponding coordinates (x with x and y with y) and divide each by 2.

(-7+1)/2 = -3

(8+3)/2 = 5.5

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2 years ago

Read 2 more answers

If a boat depreciates in value according to the simple interest formula Y=20,000(.92)^2 find the rate of decay. Write as a perce

Alexandra [31]

Answer:

Rate of Decay = 8%

Step-by-step explanation:

The decay formula is:

$F=P(1-r)^t$

Where F is the final value (here, it is given as "Y")

P is the initial value (here, given as 20,000)

r is the rate of decay (what we need to find)

t is the time (given as 2)

Comparing both the equations:

$F=P(1-r)^t\\Y=20,000(0.92)^2$

We see that:

1 - r =0.92

We solve for "r":

1 - 0.92 = r

0.08 = r

The rate of decay is 0.08, as a percentage, we need to multiply by 100, so we have:

0.08 * 100 = 8%

Rate of Decay = 8%

6 0

3 years ago

solve the systems of linear equations by graphing y=-5/2x-7 x+2y=4 what is the solution to the system of linear equations A. (-4

Sati [7]

The appropriate choice is
A. (-4.5, 4.25)

3 0

3 years ago

Read 2 more answers

Dan paid 34.30 for a sweater. The price included a 40% markup. Find the cost of the sweater before the markup was added.

hodyreva [135]

Answer:

The cost of the sweater before the markup is $24.50.

Step-by-step explanation:

The percent markup of an item is calculated by subtracting the original cost of the item from the sale price and then dividing by the original cost. In this case, we are trying to find the original cost, so we know that the percent markup is 40%, or 0.4. Since the sale price of the item would be 100% of the original cost multiplied by an additional 40% markup, we can take the sale price of the item divided by 140%, or 1.4: 34.30/1.4 = 24.50.

7 0

2 years ago