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2 years ago

Zoe rolls two fair six-sided number cubes. What is the probability that at least one number cube shows a 5?

Mathematics

1 answer:

Kitty [74]2 years ago

6 0

Answer:

Probability of obtaining at least one five = 3/12

Step-by-step explanation:

Number cube have six faces.

Then two number cube have 12 faces total but independent 6 two faces

Number of 5 in a number cube is one.

Probability of obtaining a 5 in a number cube = 1/6

Probability of obtaining at least one five in the two number cube mean = probability of obtaining a five or two five

= 1/6 + 1/12

= 3/12

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The graph below shows the number of new clients brought into Sunnydays Insurance Company. Why is the graph misleading?

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The graph is misleading because the year’s interval is not constant. The first year to the second year, the gap is 1 year; in the second to the third year, the gap is 2; in the third to the fourth year is 4; and the fourth to the fifth year is 6.

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3 years ago

Can someone pls help me find this is important

Olenka [21]

Answer:

x=90° and y=35°

Step-by-step explanation:

to get x and y first you must find the middle angles based on the information you have so:

35+90+n=180° solve for n to get what the middle angles are (since they are vertical angles they are equal) so the middle angles are both 55 degrees

and then 180-x=that angle that is also on the line with x so we'll call it k

so k+55+y=180°

we can see that y equals 35* because I noticed that those are parallel lines on the outside of the triangle so 35* and y angles are congruent and y =35°

now 35+55+k=180°

solve for the angle next to x which we called k and it is 90°

so x=90° and y=35°

after all this math I realized that if they are parallel lines then we can just use that to figure it out so use the properties to find out that x=90° and y=35°

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2 years ago

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What percent of 200 is 230

coldgirl [10]

The percent is 115% if put the numbers into a fraction know when finding a percent you can make the numbers you have already into a fraction so the fraction you have is 230/200 because 200 IS 230 so the number that IS is on top of the infraction so it 230/200=x/100. there is a x because you don't know what the percent is ,also the total percent you can get is a 100% so the x on top of a hundred so you do cross multiplying so 230 times 100 divided by 200 equals 115

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2 years ago

Write the perimeter of the rectangle in simplest form

Lana71 [14]

Answer:

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Step-by-step explanation:

2(2v+13) + 2(v-5) > 4v+26+2v-10 > 6v+16

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2 years ago

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The average commute time to work (one way) is 25 minutes according to the 2005 american community survey. if we assume that comm

xz_007 [3.2K]

We have

Mean, μ = 25 minutes
Standard Deviation, σ = 6.1
X = 30 minutes

The probability we are looking for is shown in the first diagram; it's the area on the right of X=30

We need to standardized the value X=30 using the formula $\frac{X-mean}{standard deviation}$
$\frac{30-25}{6.1}=0.82$ rounded to two dp

The z-table is shown on the second diagram only gives the probability when P(Z<z), so to work out the probability when P(Z>z), we do 1-P(Z<z)

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3 years ago