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2 years ago

15

What is the probability of rolling two dices whose sum is prime

1 answer:

Nuetrik [128]2 years ago

7 0

The logic is there are six sides to each die, so for each number on one die you can pair with six different numbers on the other die. Therefore, the probability of rolling a prime number on two dice is 15/36, which reduces to 5/12.

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I did the first one I need help on this that’s all

Alenkasestr [34]

Answer:

m<A = 70 deg

Step-by-step explanation:

The sum of the measures of the angles of a triangle is 180 deg. Add the three measures and set equal to 180. Solve for x. then use the value of x and the expression for m<A to find the measure of angle A.

m<A + m<B + m<C = 180

5x - 25 + 2x + 10 + 3x + 5 = 180

10x - 10 = 180

10x = 190

x = 19

m<A = 5x - 25 = 5(19) - 25 = 95 - 25 = 70

Answer: m<A = 70 deg

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Jet001 [13]

Answer:

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Step-by-step explanation:

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Find the surface area of the cylinder formed by the net. Use 3.14 for π.

sineoko [7]

Answer:

138.16 square feet

Step-by-step explanation:

The surface area of the cylinder consists of one rectangle and two circles.

1. The radius of the circle is 4 ft, then the area of the circle is

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2. The width of the rectangle is 1.5 ft, the length of the rectangle is the circumference of the circle.

Find the circumference:

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Hence,

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3. The surface area of the cylinder is

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3 years ago

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nydimaria [60]

Answer:

D. x = 2

Step-by-step explanation:

$\frac{1}{2} x+3=\frac{5}{2} x-1$

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$-\frac{4}{2} x=-4$

$-\frac{4}{2} x (-\frac{2}{4} )=-4(-\frac{2}{4} )$

$x = -4(-\frac{2}{4} )$

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2 years ago

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Ronch [10]

At 10 minutes past 7’o clock the minute hand will be on the number 2.

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