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3 years ago

CAN YOU ANSWER PLEASE!!

Mathematics

1 answer:

Trava [24]3 years ago

6 0

13) 2/3+4/7=26/21

14) 2* pi=6.2831.....

15)2*3=6

16)2+pi=5.1415....

18)(2)^(1/2) (2)^(1/2)=2

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Suppose you have a standard deck of 52 cards. What is the probability that if you select a card at random that it does not have

mr Goodwill [35]

0.92

Step-by-step explanation:

There are 4 cards in a deck of 52 cards that has a face value of 3. That means that the other 48 cards don't have a face value of 3. Therefore, the probability of picking a card of this deck that doesn't have a face value of 3 is

$P =\dfrac{48}{52} = 0.92$

4 0

3 years ago

An automatic machine is set to fill bags of dog food with exactly 25 pounds on average with a standard deviation of 0.5 pounds.

Rasek [7]

Answer:

Step-by-step explanation:

Given that an automatic machine is set to fill bags of dog food with exactly 25 pounds on average with a standard deviation of 0.5 pounds.

Sample size = n =100

x bar = 24.85 pounds

Sample std error = $\frac{\sigma}{\sqrt{n} } =0.05$

Hypotheses:

$H_0: x bar = 25\\H_a: x bar \neq 25$

(Two tailed test at 5% level)

Mean difference =0.15

Test statistic = mean diff/se = 3

Since population std dev is known z test can be used

p value =0.0000

Since p <0.05 we find that the bag does not contain exactly 25 pounds.

5 0

3 years ago

What is 48+60 using distributive property

Sedaia [141]

108 you don't need the distributive property.

3 0

3 years ago

Read 2 more answers

Simplify the following polynomial and write the answer in standard form. (-2x^3+5x^2-4x+8)-(-2x^3+2x-3)

Masja [62]

$(-2x^3+5x^2-4x+8)-(-2x^3+2x-3)\\\\=-2x^3+5x^2-4x+8-(-2x^3)-2x-(-3)\\\\=-2x^3+5x^2-4x+8+2x^3-2x+3\\\\=(-2x^3+2x^3)+5x^2+(-4x-2x)+(8+3)\\\\=5x^2-6x+11$

4 0

3 years ago

P(t)=4t -5, find p(t-2)

Anna11 [10]

Just substitute t=t-2 in given function.
so, p(t-2)=4(t-2)-5
=4t-8-5
=4t-13
so, p(t-2)= 4t-13

5 0

3 years ago