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4 years ago

30 Points help quickly... thx

Mathematics

2 answers:

NemiM [27]4 years ago

7 0

Answer:

1. A. -$320 + $126

2. D. 3 x (-$17)

3. C. 92 - 4

Step-by-step explanation:

1. Total loss = loss + profit

=-320+ 126

2. 3 bracelets *(-17)

The - is because they were lost

3. 92 -4

We subtract because the temperature fell

Fed [463]4 years ago

6 0

Step-by-step explanation:

Because its -320 + 126 the problem kinda tells you sorry if im wrong

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Emily's family traveled 3/10of the distance to her aunt’s house on Saturday. They traveled 4/7 of the remaining distance on Sund

WARRIOR [948]

Answer: 4/10 or 2/5

Step-by-step explanation:

Let us represent, the total distance travelled as:

Ballio's family traveled 3/10 of the distance to his aunt's house on Saturday.

Distance left to travel = 1 - 3/10

= 7/10

They traveled 4 /7 of the remaining distance on Sunday.

The fraction of the total distance to his aunt's house was traveled on Sunday is calculated as:

4/7 × Distance left to travel

= 4/7 × 7/10

= 4/10

but if i'm wrong then the answer might be 2/5

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2 years ago

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The sum of two numbers is 36 and the difference is 8.Find the numbers

NeX [460]

22 and 14

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3 years ago

Tom has t dollars. He buys 5 packets of gum worth d dollars each. How much money does he have left?

enyata [817]

Answer:

5d-t

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8 0

3 years ago

Multiply

Cloud [144]

Answer:

12 x^4 + 18 x^3 - 9 x^2 thus D is the correct answer.

Step-by-step explanation:

Expand the following:

3 x^2 (4 x^2 + 6 x - 3)

3 x^2 (4 x^2 + 6 x - 3) = 3 x^2 (4 x^2) + 3 x^2 (6 x) + 3 x^2 (-3):

3 4 x^2 x^2 + 3 6 x^2 x - 3 3 x^2

3 (-3) = -9:

3 4 x^2 x^2 + 3 6 x^2 x + -9 x^2

3 x^2×6 x = 3 x^(2 + 1)×6:

3 4 x^2 x^2 + 3×6 x^(2 + 1) - 9 x^2

2 + 1 = 3:

3 4 x^2 x^2 + 3 6 x^3 - 9 x^2

3×6 = 18:

3 4 x^2 x^2 + 18 x^3 - 9 x^2

3 x^2×4 x^2 = 3 x^4×4:

3×4 x^4 + 18 x^3 - 9 x^2

3×4 = 12:

Answer: 12 x^4 + 18 x^3 - 9 x^2

6 0

3 years ago

2. In two tosses of a fair die, what is the probability that:

zaharov [31]

Answer:

Step-by-step explanation:

The outcomes table is shown in the attached diagram. From the table, the total number of outcomes is 36.

i) the number of outcomes whose sum is 7 are 6 (1,6 2,5 3,4 4,3 5,2 6,1)

The probability that the sum of the two numbers that show up is 7 is

6/36 = 1/6

ii) the number of outcomes whose sum is even are 18

The probability that the sum of the two numbers that show up is even is

18/36 = 1/2

ii) the number of outcomes whose sum is greater than 9 is 6(4,6 5,5 6,4 5,6 6,5 6,6)

The probability that the sum of the two numbers that show up is greater than 9 is

6/36 = 1/6

3) this is a poisson distribution. We want to determine the mean.

Mean = np

p = 5/200 = 0.025

n = 600

Therefore,

Mean = 0.025 × 600 = 15 eggs

15 eggs are expected to be broken from a crate containing 600 eggs

6 0

3 years ago