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3 years ago

How many athletes exercised more than 40 but less than 60 minutes

Mathematics

2 answers:

nika2105 [10]3 years ago

5 0

The correct answer is:

Explanation:

The number 40 is written in this stem-and-leaf plot as 4|0. 60 is written as 6|0. There are 4 leaves between these numbers; 5, 5, 5 and 5, with the stem of 4. This means the numbers are 45, 45, 45 and 45. There are only 4 between these two numbers.

BaLLatris [955]3 years ago

3 0

4. When reading the stem and leaf plot the only values that fall between the range of 40 < x <60 is the 4 values of 45. They are located at the tail end of the 4 stem after the zeros. The 40s and 60s are not counted because it is not mentioned equal to 40 or 60.

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Find x triangle 2x+25, 7x+20, and 4x+20

Fantom [35]

Total measure of the triangle is 180
So you set the equation equal to 180 and then solve for x using basic calculation

13x=115
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3 years ago

What's that name of the units used for frequency

damaskus [11]

Answer:

hertz (Hz)

Explanation:

The SI unit for frequency is the hertz (Hz). One hertz is the same as one cycle per second.

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3 years ago

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Find the product of 7/30? multiplied by 5/14 simplify your answer

Liula [17]

Answer:

Should be 1/12

Step-by-step explanation:

7/30x5/14

Simply multiply the numerators and denominators separately:

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1 year ago

24+89 A.113 B.34 C.87 D.90

Alchen [17]

Answer:

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2 years ago

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Determine the coordinates of the corners of the rectangle to compute the area using

inysia [295]

Answer:

77.93

Step-by-step explanation:

#We can simply read off the x,y coordinates directly from the graph.

$i. [1,8]\\\\ii. [4,5]\\\\iii. \ [14,21]\\\\iv.\ \ \ [17,18]$

#we know that a rectangle has pair of two equal sides. To calculate the area, we determine the dimension of any un-equal two sides:

#Using Pythagorean Theorem:

$\#Use \ ii \ and \ iv \ to \ calculate \ length.\\\\a^2+b^2=c^2\\\\(17-4)^2+(18-5)^2=l^2\\\\l=18.38\\\\\#Use \ i \ and \ ii \ to \ calculate \ width.\\\\a^2+b^2=c^2\\\\(4-1)^2+(8-5)^2=w^2\\\\w=4.24$

We can therefore calculate area as:

$A=lw\\\\=18.38\times 4.24\\\\=77.93$

Hence, the area of the rectangle is 77.93

6 0

4 years ago