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4 years ago

Evaluate expression an the property used of (8-8)+21

Mathematics

1 answer:

Setler [38]4 years ago

6 0

The answer is 21 because you do PEMDAS first. (8-8) is 0. And 0+21 is 21

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Jerome has a penny, a nickel, a dime and a quarter. how many different two-coin sums can he make?

g100num [7]

So you have 1 of each a penny a nickel a dime and a quarter so the number combos is shown below
1 penny and nickel
2 penny and dime
3 penny and quarter
4 nickel and dime
5 nickel and quarter
6 dime and quarter

The reason why number 4 doesn't say nickel and penny is because is if I had said that it would of been the same as number 1 just that the penny and nickel has switched places so the number of different 2 coin sums are 6

also a penny + a nickel + a dime + a quarter is = to 41 cents

4 0

4 years ago

Find the volume of this triangular pyramid.

notka56 [123]

Answer:

volume = 80 in³

Step-by-step explanation:

base area = 8 x 6 x 0.5 = 24 in²

volume = 24 x 10 x 1/3 = 80 in³

5 0

3 years ago

3. Two dice are rolled. What’s the conditional probability that both dice are 5’s if it’s known that the sum of points is divisi

ArbitrLikvidat [17]

Answer:

$Pr =\frac{1}{3}$

Step-by-step explanation:

Given

$S = \{(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)(2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)$

$(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6)(4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)$

$(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6)(6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)\}$ --- sample space

First, list out all outcomes whose sum is divisible by 5

$A = \{(4,6), (5,5),(6,4)\}$

So, we have:

$n(A) = 3$

Next, list out all outcomes that has an outcome of 5 in both rolls

$B = \{(5,5)\}$

$n(B) =1$

The required conditional probability is:

$Pr =\frac{n(B)}{n(A)}$

$Pr =\frac{1}{3}$

8 0

3 years ago

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3 years ago

Can someone help me with these two for brilliant please

Yuri [45]

Answer:

its A

Step-by-step explanation:

7 0

3 years ago

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