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3 years ago

8

Simon is doing a card trick using a standard 52 card deck. He shows his friend a card, replace it, and then shows his other frie

nd another card. What is the probability that the first card is NOT a club and the second card is a diamond?
A. 5/8
B. 1/8
C. 1/2
D. 3/16

1 answer:

Elza [17]3 years ago

5 0

It would be 39/50 then 13/50 sry I didn't have time to simplify it.

Hope this helps.

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Simplify the expression.<br><br> (7 – c )(–1)

Helen [10]

Answer:

-7+c

Step-by-step explanation:

remove the parenthesis

(7-c)x1

multiply

-(-c+7)

Distribute parentheses

- (7) - (-c)

6 0

3 years ago

You want to buy a tent in the shape of a pyramid. The rectangular base is 35 square feet, with a height of 4 feet. What is the v

marin [14]

Answer:

46.67 cubic feet

Step-by-step explanation:

The formula for volume of a pyramid is

V = (1/3)Bh where B is the area of the base, and h is the height.

We are givne B = 35 and h = 4. Plug those values in and simplify...

V = (1/3)(35)(4)

V = (1/3)(140)

V = 140/3

V = 46 2/3 cubic feet, which is 46.666667, or 46.67 rounded to the nearest hundredth

7 0

3 years ago

Please help me!! I will give brainliest.

Flura [38]

Answer:

2/3

Step-by-step Solution:

Simply change the denominators such that both denominators are the same. Then, add the fractions to get your result.

1/2 + 1/6
=> 3 x 1/2 x 3 + 1/6
=> 3/6 + 1/6
=> 4/6 = 2/3

Hence, the solution is 2/3.

6 0

2 years ago

Read 2 more answers

a 9ft ladder is placed 4.5 feet from the base of a wall. How high up will the ladder reach? Round to the nearest hundredth.

spin [16.1K]

Answer:

$\huge\boxed{7.79 \ \text{feet}}$

Step-by-step explanation:

We know that we have a 9 foot long ladder resting upon a wall, with an unknown height, but the ladder is 4.5 feet away from the wall.

This can be represented as a triangle, where x is the unknown side.

|\

| \

x | \ 9

| \

| \

|_____\

4.5

We can use The Pythagorean Theorem to find the value of x. The theorem states that $a^2+b^2=c^2$ , where a and b are the lengths of the legs and c is the length of the hypotenuse.

However, we already know the hypotenuse and one leg. Therefore we can substitute inside the equation to find the missing value.

$a^2 + 4.5^2 = 9^2\\\\a^2 + 20.25 = 81\\\\a^2 = 60.75\\\\a \approx 7.79$

Hope this helped!

7 0

3 years ago

Solve this step by step

Kaylis [27]

Step-by-step explanation:

the formula to calculate a circumference is

$x \times \pi$

(consider x as the diameter)

so I'll be noting the circumference as C alongside the circle's ranking

a.

$ca = 6 \times 22 \div 7 \\ = 44 \div 7$

b.

$cb = 7 \times 22 \div 7 \\ = 154 \div 7 \\ = 22$

c.

$cc \: = 4 \times 22 \div 7 \\ = 88 \div 7$

hope I helped

8 0

3 years ago