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mojhsa [17]
3 years ago
13

NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! WILL GIVE 99 pts AND BRAINLIES

T
What is 90% of 20?
Mathematics
2 answers:
spin [16.1K]3 years ago
6 0

Answer:

18

Step-by-step explanation:

d1i1m1o1n [39]3 years ago
5 0

Answer:

18

Step-by-step explanation:

20/2=10

10/10=100

9/10=90%

9/10*2=18/20=90%

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Round 29.383 to the nearest whole number
lisov135 [29]

Answer:

29

Step-by-step explanation:

It doesnt round up because its under 29.5

therefore it goes down to 29

7 0
3 years ago
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Answer below please i need it immediately
DIA [1.3K]

Answer:

sss

Step-by-step explanation:

i think because 3 sides are given

3 0
2 years ago
Which is the product of 5/18 and 6?
hoa [83]
The answer to this question is B
4 0
3 years ago
Is knowing the coordinates of the vertex of a parabola enough to determine the domain and range?
puteri [66]

The <em>correct answers</em> are:


C) No: we would need to know if the vertex is a minimum or a maximum; and

C)( 0.25, 5.875).


Explanation:


The domain of any quadratic function is all real numbers.


The range, however, would depend on whether the quadratic was open upward or downward. If the vertex is a maximum, then the quadratic opens down and the range is all values of y less than or equal to the y-coordinate of the vertex.


If the vertex is a minimum, then the quadratic opens up and the range is all values of y greater than or equal to the y-coordinate of the vertex.


There is no way to identify from the coordinates of the vertex whether it is a maximum or a minimum, so we cannot tell what the range is.


The graph of the quadratic function is shown in the attachment. Tracing it, the vertex is at approximately (0.25, 0.5875).

5 0
3 years ago
Read 2 more answers
Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards
Dmitrij [34]

Answer:

Ok, the probability of winning is:

For the first draw, we have 13 diamonds in a 52 card deck, the probability of drawing a diamond is:

p1 = 13/52

for the second draw we have 12 diamonds and 51 cards in the deck, now the probability is:

p2 = 12/51

the total probability is equal to the product of the individual probabilities, this is:

P = p1*p2= (13/52)*(12/51) = 0.059

now, the expected value can be calculated as follows.

EV = (P1*X1 + P2*X2)

where P1 is the probabilty of event 1, and X1 is the event 1,

In this case X1 is the event of winning $29, then P1 = 0.059

X2 will be the event of loosing $4, so P2 = 1 - 0.059 = 0.941

Then the expected value for 1 round of the game is:

EV = (0.059*$29 - 0.941*$4) = -$2.05

So if you play 891 times, expected value of 891 times the expected value for 1 round, this is:

891*EV = 891*(-$2.05) = -$1826.55

So you loss around  $1826.55

4 0
3 years ago
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