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insens350 [35]
3 years ago
11

Help ASAP PLZZ

Mathematics
1 answer:
Misha Larkins [42]3 years ago
5 0

The middle of the angle name has to stay in the middle

<DEF = <FED

Choice B is correct

E will be correct if there are no other angles around E

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-PLEASE ANSWER- An experiment was repeated a number of times and the following measurements were obtained:
gladu [14]

Answer:

Step-by-step explanation:

From the given data, it can be observed that there are two number that are abnormal and extremely different from others, 322 and 19. Eliminating these two numbers would reduce the error that can be generated.

Then to obtain the best single result from the measurements, find the mean of the other numbers.

i.e  52.3, 52.5, 52.2, 52.6

Mean =  \frac{52.3 + 52.5 + 52.2 + 52.6}{4}

     = \frac{209.6}{4}

     = 52.4

Thus the best single result that can be obtained is 52.4.

3 0
3 years ago
Toms package weights three more pounds then twice the weight of Momos package. Altogether it equals 15 pounds.
Musya8 [376]
1.   T+3>M^2=15
       -3              -3
        T>M^2=12
       divide 2 on both sides
     T>M=6
      T=9 and M=6
T= 9 because you found M and you use the amount you got rid of to solve M to get T <span />
3 0
3 years ago
35 of the apartments have a balcony and 55 of them don't. An apartment is randomly selected as part of a survey. What is the pro
kobusy [5.1K]

Answer:

39%

Step-by-step explanation:

It is given that 35 apartments have balconies in them.

While 55 apartments do not have balconies in them.

Total number of balconies is the sum of the apartments. i.e. 35 + 55

                                                                                             = 90 apartments

Therefore for the survey when an apartment is randomly selected, the percentage of the probability of the apartment to have a balcony can be found out by dividing 35 by 90 and then multiply by 100.

i.e.

$=\frac{35}{90}$

= 0.38888888

Multiplying by 100, we get

= 0.388888 x 100

= 38.8888 %

= 39 %

3 0
3 years ago
(80 POINTS) What rule describes a dilation with a scale factor of ½ and the center of dilation at the origin?
lesya [120]

Answer:

C

Step-by-step explanation:

(x, y) -> (1/2x, 1/2y)

When you dilate a side, point, etc, you are multiplying the original dimension by the scale factor. That is represented in option C: the original x and y are multiplied by the scale factor, 1/2! Hope that helps! :)

6 0
4 years ago
Read 2 more answers
Suppose you pick two cards from a deck of 52 playing cards. What is the probability that they are both queens?
photoshop1234 [79]

Answer:

0.45% probability that they are both queens.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes

The combinations formula is important in this problem:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes

You want 2 queens. Four cards are queens. I am going to call then A,B,C,D. A and B is the same outcome as B and A. That is, the order is not important, so this is why we use the combinations formula.

The number of desired outcomes is a combinations of 2 cards from a set of 4(queens). So

D = C_{4,2} = \frac{4!}{2!(4-2)!} = 6

Total outcomes

Combinations of 2 from a set of 52(number of playing cards). So

T = C_{52,2} = \frac{52!}{2!(52-2)!} = 1326

What is the probability that they are both queens?

P = \frac{D}{T} = \frac{6}{1326} = 0.0045

0.45% probability that they are both queens.

4 0
3 years ago
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