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Nookie1986 [14]
4 years ago
15

Plz Explain will give Brainliest

Mathematics
1 answer:
FromTheMoon [43]4 years ago
5 0

Answer:

The question is wrong?

Step-by-step explanation:

(x)^2 - 4y + 19

(-8)^2 - 4(-9) + 19

64 + 36 + 19

119

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In a certain card game you draw one card off a standard deck of 52 cards. If you draw a spade you get paid $12, if you draw a re
Mariulka [41]

Step-by-step explanation:

In a standard deck of 52 cards, there are 2 red aces, 2 red Queens, and 13 spades.  That leaves 35 cards for everything else.

For the game to be fair, the cost must equal the expected value.  The expected value is the sum of each outcome times its probability.

C = (12) (13/52) + (20) (2/52) + (38) (2/52) + (0) (35/52)

C = 68/13

C ≈ 5.2308

4 0
3 years ago
What is 1/4 of 76 in a mathequ on
Softa [21]
The answer is 19. You have to do 1/4 x 76/1 which is basically 76 divided by 4, which gives you 19.
4 0
3 years ago
Y = 8 ∙ 3^x for x = 4 20 POINTS
8090 [49]

Answer:

648

Step-by-step explanation:

8×3^4=648

8×81=648

7 0
3 years ago
A particular dam contains approximately 1,900,000,000,000 cubic feet of water. for a week long spike flood, the dam released at
Fantom [35]

Answer:

a) How much water was released during the flood?

14878080000 cubic feet or 14,878,080,000ft³

b) What percentage of the dam was released during the flood?

0.78%

Step-by-step explanation:

a) How much water was released during the flood?

The first step would be to find out how many seconds are in a week

60 seconds = 1 minute

60 minutes = 1 hour

24 hours = 1 day

7 days = 1 week

Hence, the number of seconds in a week =

1 week × (7 days/1 week)× (24 hours/1 day )×( 60 minutes/1 hour) ×( 60 seconds/1 minute)

= 604800 seconds

Therefore, the quantity of water released per week =

604800 seconds × 24,600 cubic feet per second

= 14,878,080,000 cubic feet or 14,878,080,000ft³

b) What percentage of the dam was released during the flood?

This is calculated as quantity released during the week ÷ Quantity of water in the dam × 100%

Quantity of water released during the flood in a week = 14,878,080,000 cubic feet

Quantity of water in the dam= 1,900,000,000,000 cubic feet of water

Percentage of the dam released during the flood =

14,878,080,000 cubic feet ÷ 1,900,000,000,000 × 100

= 0.7830568421%

Approximately = 0.78%

7 0
3 years ago
Allele took 22 min to do 13 Jordan took 24 min to do 12 math problems which student did more problems per min how do you know
Sedbober [7]
Allele did more per min, find the unit rate

5 0
4 years ago
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