True or False? 1. All real numbers are either rational or irrational?

2. Every real number can be represented as a decimal, and every decimal represents a real number?

Answers

Answer 1
Answer: "Every real number can be represented as a decimal, and every decimal represents a real number"
 
Every real number can be represented as a decimal --> True since non-terminating decimals are decimals too.
 
And every decimal represents a real number --> This is just the vice versa of the first statement. Hence true.
 
That's making the whole statement true.So both the statements are true.

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A box has 6 beads of the same size, but all are different colors. Tania draws a bead randomly from the box, notes its color, and then puts the bead back in the box. She repeats this 3 times. What is the probability that Tania would pick a yellow bead on the first draw, then a blue bead, and finally a yellow bead again?1/216

1/36

1/6

1/2

Answers

The probability that Tania would pick a yellow bead on the first draw, then a blue bead, and finally a yellow bead again is 1/216.

What is Probability?

The probability helps us to know the chances of an event occurring.

\rm{Probability=(Desired\ Outcomes)/(Total\ Number\ of\ outcomes\ possible)

As it is given that the box has 6 beads of the same size, but all are different colours. therefore, the probability of any bead being selected is 1/6.

Now, we know that when Tania picks a bead she puts it back in the box, therefore, the sample size of the box will be the same and also the probability of each bead will be the same as well.

Further, the probability that Tania would pick a yellow bead on the first draw, then a blue bead, and finally a yellow bead again can be written as,

\rm Probability = (1)/(6) *  (1)/(6) *  (1)/(6)  = (1)/(216)

Hence, the probability that Tania would pick a yellow bead on the first draw, then a blue bead, and finally a yellow bead again is 1/216.

Learn more about Probability:

brainly.com/question/795909

Each specific bead color has (each time) a probability \frac{1}6 of being drawn.

Hence the final probability is \frac{1}6\cdot\frac{1}6\cdot\frac{1}6=\boxed{(1)/(216)}

I ONLY HAVE 5 MIN TO TURN THIS IN PLS HELP!!!!!!!!!!!!!!!!!!!!!!Combine like terms.
-2+6y^3-2y^3+7-7+6x^2-2x^2

Answers

The answer is -2 + 4y^3 + 4x^2

Answer:

4y^3 + 4x^2 -2

(work included in image)

Given PQRS ≌ BCDE, what is m∠D?A.
63°

B.
90°

C.
98°

D.
109°

Answers

If they are congrunt, and it seems like the shape was rotated, so the answer is D 

What is the area of the parallelogram?A.
48 square centimeters

B.
28 square centimeters

C.
12 square centimeters

D.
24 square centimeters

Answers

The area of the parallelogram would be A) 48 Square centimeters because when you are finding the area of parallelogram then you do B*H so the base in this parallelogram is 8 and the height in this parallelogram is 4 and so then you multiply 8 and 4 so 8*4=48...so the answer would be A) 48 Square Centimeters....hope it helped

The measures of exterior angles of a regular polygon with n numbers of sides ____ as n increases

Answers

decrease

The exterior angles of a polygon add up to 360 degrees, so the measure of each exterior angle of an n-sided regular polygon is given by 360/n. As n increases, 360/n will decrease.

Exterior angle = 360 / n

where n = number of sides of the regular polygon.

So when n increases, the exterior angle reduces.

So:

The measures of exterior angles of a regular polygon with n numbers of sides decreases as n increases

Hope this explains it.

Question 2: SQUARE ROOTS

Answers

Answer:

A) 15 and 16

Step-by-step explanation:

The square root of 250 is 15.8, so it falls between:

15 and 16