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kow [346]
3 years ago
6

7th grade math help me pleasee

Mathematics
2 answers:
zimovet [89]3 years ago
7 0

Answer:

a, c, b

Step-by-step explanation:

ITS CORRECT TRUST MEEE

makkiz [27]3 years ago
5 0

Answer:

a. 18* celsius.

b. 0* celsius.

c. -12* celcius.

Step-by-step explanation:

Hope my answers helped.-

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Maria wants to buy a new phone researching realized that the best price and 147.86 US dollars at the time of purchase it still a
ella [17]

Answer:

0.6763154335

Step-by-step explanation:

because. 10%is the same as 10 over 100 .because percent means 100. so you say 100÷10=10. then you say 10×14.786. this is how I got the answer.

7 0
3 years ago
What is 8663.6630002 rounded to the nearest thousandth?
liraira [26]

Answer:

8663.663

<em>I hope this helped! Mark as brainliest please!</em>

4 0
3 years ago
Read 2 more answers
What is the trigonometric ratio for cos D ?
leva [86]

Answer:

Here,

  • H=75
  • P=72
  • B=21

We know that cosD= b/h

=21/75

=7/25

7 0
2 years ago
Suppose that you randomly draw one card from a standard deck of 52 cards. After writing down which card was drawn, you replace t
34kurt

Answer:

The probability is 0.0775

The expected value is 4.75 clubs

The standard deviation is 1.8875 clubs

Step-by-step explanation:

The variable X follows a binomial distribution, because we have n identical and independent events (19 cards) with a probability p of success and 1-p of fail (there is a probability of 1/4 to be club and 3/4 to be diamond, heart or spade). Then, the probability that x of the n cards are club is:

P(x)=\frac{n!}{x!(n-x)!}*p^{x}*(1-p)^{n-x}\\P(x)=\frac{19!}{x!(19-x)!}*0.25^{x}*(0.75)^{19-x}

So, the probability P of drawing at least 8 clubs is:

P = P(8) + P(9) + P(10) + ... + P(18) + P(19)

Replacing, the values of x, from 8 to 19, on the equation above, we get:

P = 0.0775

Additionally, the expected value E(x) and standard deviationS(x) for this distribution is given by:

E(x)=np = 19(0.25) = 4.75

S(x)=\sqrt{np(1-p)} =\sqrt{19(0.25)(0.75)} =1.8875

8 0
3 years ago
A a migrating bird flies 384 miles in 12 hours how many hours does it flies in 5 hours
shusha [124]
Divide 384 by 12 then multiply it by 5 to give you 160
4 0
2 years ago
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