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worty [1.4K]
3 years ago
5

In a class of 30 children, 60 % are female. How many students are boys?

Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

7 i think

Step-by-step explanation:

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What is P(4 ≤ X ≤ 6)? Explain. <br> If P(X ≤ a) = 0.2, what is a? Explain.
melamori03 [73]

Answer:

(a) 0.4

(b) a = 3

Step-by-step explanation:

(a) The area under the curve from x=4 to x=6 is 0.2 units high and 2 units wide, so is 0.2·2 = 0.4. (The area of a rectangle is the product of length and width.)

(b) The area is 0.2 and the height of the curve is 0.2, so the width of the region of concern is 0.2/0.2 = 1. (Again, area = height·width, or width = area/height.) 1 unit from the left end is found at X=3, so a = 3.

4 0
2 years ago
the value of a collectible coin can be represented by the equation y=2x+9.74 where x represents the number of years that consuel
Serggg [28]

Answer:

The answer is b ($9.74)

Step-by-step explanation:

I got it right (:

4 0
3 years ago
Can anyone answer -4(3-x)-7x and show the work !
Dafna1 [17]
The answer is -12-3x
7 0
3 years ago
Plssssssssssssssssssssssssssssssssss
Lostsunrise [7]
<h2><u>Quadrilateral</u></h2>

<h3>Classify the quadrilateral in as many ways as possible.</h3>

Shown in the figure, all the measurements of each sides is different, so it is only a quadrilateral. Square has four equal sides and angles, rhombus has only four equal sides, and a parallelogram whose opposite sides are parallel.

<u>Answer:</u>

  • <u>C. Quadrilateral</u>

<em>Picture 1 (Rhombus)</em>

<em>Picture </em><em>2</em><em> </em><em>(Square)</em>

<em>Picture 3 (Parallelogram)</em>

<em>Picture 4 (Quadrilateral)</em>

Wxndy~~

3 0
1 year ago
If X squared equals 16 then X equals 4
AfilCa [17]
That would be correct because if x times x =16 than that means that the square root of 16 is 4
6 0
3 years ago
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