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Archy [21]
3 years ago
14

does anyone know this !???? it's a test !!!!! pls help. i'll give you brainliest and 15 points. pls show work !!!!

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

Diagonals are equal

3x+10=2(2x-3)

=>3x+10=4x-6

=>4x-3x=10+6

=>x=16

Step-by-step explanation:

please mark me as brainliest

cluponka [151]3 years ago
3 0

Answer:

hiiiiiiiiiiiiiiiiiiiii◉‿◉

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#7. What are the values/ how do I do it
Tasya [4]

Answer:

x =2

SK = 21

KY = 13

SY = 34

Step-by-step explanation:

we can see from the picture the following:

SK + KY = SY  equation 1

SK=13x-5    equation 2

KY = 2x+9    equation 3

SY = 36-x     equation 4

using equation 2, equation 3 and equation 4 in equation 1 we have:

13x - 5 +  2x + 9 = 36-x  

15x +4 = 36 - x

15x +x = 36-4

16x = 32

x = 32/16

x= 2

using x as 2 we evaluate it in equation 2, equation 3 and equation 4:

SK=13(2)-5 = 21

KY= 2(2) +9 = 13

SY = 36-2 = 34

5 0
3 years ago
The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance,
tensa zangetsu [6.8K]

We have the following data set:

2,7,15,3,12,9,15,8,3,10

The range is the difference between the highest and lowest values in the set, to find the range, order the data set from least to greatest.

2,3,3,7,8,9,10,12,15,15

Then,

\begin{gathered} \text{Range}=15-2 \\ \text{Range}=13 \end{gathered}

Mean is represented by the following expression:

\text{Mean}=\frac{\text{Sum of all data points}}{Number\text{ of data po}ints}\text{Mean}=\frac{84}{10}=8.4

Population variance formula looks like this:

\begin{gathered} \sigma^2=\frac{\sum^{}_{}(x-\mu)^2}{N} \\ \text{where,} \\ \sigma^2=\text{population variance} \\ \sum ^{}_{}=addition\text{ of} \\ x=\text{each value} \\ \mu=population\text{ mean} \\ N=\text{ number of values in the population} \end{gathered}

Then, substituting:

\begin{gathered} \sigma^2=\frac{(2-14)^2+(3-14)^2+\cdots+(15-14)^2}{10} \\ \sigma^2=20.44 \end{gathered}

For the standard deviation:

\begin{gathered} s=\sqrt[]{\frac{\sum ^{}_{}(x-\mu)^2}{N}} \\ s=4.521 \end{gathered}

5 0
2 years ago
60 m
lakkis [162]

where is your triangle mate??

hope this helps u

follow me

mark as brainliest

thank me

5 0
3 years ago
Find Four constructive odd integers whose sum is 224 what is the largest number
rusak2 [61]

Answer:

53, 55, 57, and 59

Step-by-step explanation:

Let the numbers be

x, x +2, x +4, and x+6. Then

x + x+2 + x +4 + x + 6 = 224     Combine like terms

                      4x + 12 = 224     Subtract 12 from each side

                             4x = 212      Divide each side by 4

                               x = 53

The four consecutive integers are 53, 55, 57, and 59.

<em>Check: </em>

53 + 55 + 57 + 59 =224

5 0
3 years ago
Please help me <br> How many times larger than 3 × 104 is 15 × 108?
Ronch [10]

Answer:

3*104=312

15*108=1620

1620/312=5.19230769 OR 5.19 OR 5.1 OR 5

4 0
3 years ago
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