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Dovator [93]
3 years ago
8

Determine the sign of the sum of -8+8. A) positive B) negative C) zero

Mathematics
2 answers:
MaRussiya [10]3 years ago
7 0
Zero -8+8=0 since -8 is before zero and adding 8 to it makes it on zero.
kvv77 [185]3 years ago
7 0
The answer is C.zero anything number that is negative that is added by its opposite number will be 0

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Three fair dice are rolled, one red, one green and one blue. What is the probability that the upturned faces of the three dice a
r-ruslan [8.4K]

Answer:   \dfrac{5}{9}

Step-by-step explanation:

When we throw a die , Total outcomes =6

When we throw 3 dice , Total outcomes = 6 x 6 x 6 = 216 [by fundamental counting principle]

Given : Three fair dice are rolled, one red, one green and one blue.

Favorable outcomes : When the upturned faces of the three dice are all of different numbers i.e. no repetition of numbers allowed

By Permutations , the number of favorable outcomes = ^6P_3=\dfrac{6!}{(6-3)!}=\dfrac{6!}{3!}=6\times5\times4=120

The probability that the upturned faces of the three dice are all of different numbers = \dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}

=\dfrac{120}{216}=\dfrac{5}{9}

The probability that the upturned faces of the three dice are all of different numbers  is \dfrac{5}{9} .

7 0
2 years ago
Material for a dress costs £5.50 per metre.<br> find the cost of 10cm and 70cm
Zielflug [23.3K]

Answer:

<em>The cost of 10 cm and 70 cm are  £0.55 and £3.85 respectively.</em>

Step-by-step explanation:

Material for a dress costs £5.50 per meter.

We know that,  <u>1 meter = 100 cm</u>.

Suppose, the cost of 10 cm material is x and the cost of 70 cm material is y

Now, <u>according to the ratio of "cost" to the "length of material"</u> , we will get.......

\frac{x}{10} =\frac{5.50}{100}\\ \\ 100x=10*5.50=55\\ \\ x=\frac{55}{100}=0.55

and

\frac{y}{70} =\frac{5.50}{100}\\ \\ 100y=70*5.50=385\\ \\ x=\frac{385}{100}=3.85

So, the cost of 10 cm material is £0.55 and the cost of 70 cm material is £3.85

5 0
2 years ago
-2s(5st+3t) need help with problem
kipiarov [429]
The answer to this problem is -10x^2t-6st  to get this answer or this problem you must use the product rule formula x^a x^b=x^a=b
7 0
3 years ago
Miss Tamika just started an art class. She had 10 children enrolled for the first class. · Before she began the art lesson, she
g100num [7]

Answer:

45 Handshakes.

Step-by-step explanation:

10 people shake hands.

So, each person will shake hands with 9 other people.

Total number of handshakes = 90/2 = 45

7 0
2 years ago
Six friends had lunch together and decided to spilt the bill evenly, If the bill was 48.60 what was everyone’s share?
julsineya [31]

Answer:

8.1

Step-by-step explanation:

48.6 /  6 is 8.1 .

5 0
2 years ago
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