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ella [17]
3 years ago
12

explain why any number less than 12.5 and greater than or equal to 11.5 with round 2 12 when rounded to the nearest whole number

Mathematics
1 answer:
Olenka [21]3 years ago
5 0
5 or greater add one more 4 and below stays the same.
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the sum of the lengths of the sides of a rectangle is represented by 32 feet. the width of the rectangle measures 9 feet. what i
Marina CMI [18]
-- A rectangle has 4 sides.

-- Each side has the same length as the side directly across from it.

-- So there are two sides that are both the width of the rectangle,
and another two sides that are both the length of the rectangle.

-- In this particular rectangle, when you add up all four sides,
the sum is 32 feet.

-- The width of the rectangle is 9 feet.  So there are two sides that are
both 9 feet.  When you add those up, you have 18 feet.

-- The REST of the 32 feet belongs to the other two sides.
That much is (32 - 18) = 14 feet.  That's what the other two
sides add up to when you add them.

-- The other two sides are equal.  So each of them is half of 14 = 7 feet .

This rectangle, or the description of it, is slightly weird.
The length of the rectangle is shorter than the width.
But that's OK.  Two sides are 9 feet, and two sides are 7 feet, and
when you add them all up, you get 32 feet, so our solution is correct.
Let them call the sides anything they want to.

5 0
4 years ago
Suppose you just purchased a digital music player and have put 15 tracks on it. After listening to them you decide that you like
blsea [12.9K]

Answer:

Total songs = 15

Liked songs = 3

Un liked songs = 15-3=12

Find the probability that among the first two songs played

​(a) You like both of them.

Probability that among the first two songs played you like both of them = \frac{3}{15} \times \frac{2}{14} = 0.029

​(b) You like neither of them.

Probability that among the first two songs played you like neither of them = \frac{12}{15} \times \frac{11}{14} = 0.629

​(c) You like exactly one of them.

Probability that among the first two songs played you like exactly one of them = \frac{3}{15} \times \frac{12}{14}+ \frac{12}{15} \times \frac{3}{14}= 0.343

(d) Redo​ (a)-(c) if a song can be replayed before all

​(a) You like both of them. Would this be​ unusual?

Probability that among the first two songs played you like both of them = \frac{3}{15} \times \frac{3}{15} = 0.04

​(b) You like neither of them.

Probability that among the first two songs played you like neither of them = \frac{12}{15} \times \frac{12}{15} = 0.64

​(c) You like exactly one of them.

Probability that among the first two songs played you like exactly one of them = \frac{3}{15} \times \frac{12}{15}+ \frac{12}{15} \times \frac{3}{15}= 0.32

7 0
4 years ago
Which of these best describes the hypotenuse-angle theorem?
Amiraneli [1.4K]
The hypotenuse angle theorem<span> basically states that if the hypotenuse and an acute angle of one right triangle</span><span> are congruent to the </span>hypotenuse<span> and an acute </span>angle<span> of another right triangle, then the two triangles are congruent.

So I would say D is correct</span>
5 0
3 years ago
Read 2 more answers
Find the area of the parallelogram.<br>4 m<br>11 m​
agasfer [191]

Answer:

The area of this parallelogram is 44meters^2

Step-by-step explanation:

The formula for working out the area of a parallelogram is : base*height

To work out the area you would multiply the base of 11 by the height of 4, this gives you 44 meters squared. This is because a identical parallelogram and a rectangle would have the same area.

1) Multiply 11 by 4.

11*4=44 meters^2

 

4 0
3 years ago
In circle O, m∠R = 30.8°. Find m∠NOQ.
nordsb [41]

Given:

In circle O, m∠R = 30.8°.

To find:

The m∠NOQ

Solution:

Central angle theorem: According to this theorem, the central angle is always twice of subtended angle on the same arc.

Angle NOQ and angle NRQ are on the same arc but ∠NOQ is the central angle and ∠NRQ is the subtended angle on the arc NQ.

Using central angle theorem, we get

m\angle NOQ=2\times m\angle NRQ

m\angle NOQ=2\times m\angle R

m\angle NOQ=2\times 30.8^\circ

m\angle NOQ=61.6^\circ

Therefore, m\angle NOQ=61.6^\circ.

4 0
3 years ago
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