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3 years ago

HELP ME PLEASEE NOBODY IS HELPING AT ALL :((((

Mathematics

1 answer:

olchik [2.2K]3 years ago

7 0

Answer:

nba players are taller they all like 6’10

Step-by-step explanation:

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Find the product of 2(5.9) mentally using the distributive property.

VARVARA [1.3K]

2(5.9) is 11.8

Hopefully i is right I did this in my head.

7 0

2 years ago

What is the area of the semicircle (use 3.14 for p)?<br> Please help! Will mark brainlyest.

Marizza181 [45]

Answer:

127.17 cm²

Step-by-step explanation:

Area of a semicircle: 1/2*π*r²
π (pi) = 3.14
r (radius) = d (diamater) / 2 => 18/2 = 9 cm

A = 1/2*π*r²

A = 1/2*3.14*9²

A = 1/2*3.14*81

A = 3.14*40.5

A = 127.17 cm²

Therefore, the area of the semicircle is 127.17 cm²

Hope this helps!

4 0

2 years ago

Read 2 more answers

If the temperature changed at a rate of -3 per hour,then after how many hours did the temperature reach -12

Oxana [17]

Answer:

If temperature is 0 then it takes 4 hours since 3 x 4 = 12 and 0 - 12 = -12

Whatever the temperature divide by three to get to 0 then add four to the quotient

8 0

3 years ago

Write an expression using multiplication and addition with a sum of 16. (PLZ HELP!!!!)

Svetach [21]

Write an expression using multiplication and addition with a sum of 16:

2 x 6 +4

7 0

2 years ago

A city police officer using radar checked the speed of 26 cars as they were travelling down a city street and the data is given

pychu [463]

Answer: The distribution of the data set is positively skewed.

<u>Explanation: </u>

In order to see whether the given data set is symmetric, positively skewed or negatively skewed, we will find the mean, median and mode of the given data set.

For symmetric distribution, $Mean = Median=Mode$

For positively skewed distribution, $Mean > Median>Mode$

For negatively skewed distribution, $Mean < Median$

The mean of the given data set is given below:

$Mean = \frac{27+23+22+38+43+24+25+23+22+54+31+30+29+48+27+25+29+28+26+33+25+21+23+34+20+23}{26}$

$=\frac{753}{26}$

$=28.96$

Now, the Median is:

To find the median we need to sort the data in ascending order as:

$20,21,22,22,23,23,23,23,24,25,25,25,26,27,27,28,29,29,30,31,33,34,38,43,48,54$

$Median=\left(\frac{N+1}{2} \right)^{th} item$

$=\left(\frac{26+1}{2}\right)^{th} item$

$=13.5^{th} item$

$=26+0.5 \times (27-26)$

$=26.5$

$\therefore Median = 26.5$

The mode is the most frequently occurring observation. Therefore the mode is:

$Mode=23$

Since the $Mean >Median>Mode$ , therefore the distribution of the given data set is positively skewed.

5 0

3 years ago