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Margarita [4]
3 years ago
8

HELP ME PLZZZZZZZZ ILL GIVE ALL MY 10 POINTS PLZZ

Mathematics
1 answer:
sammy [17]3 years ago
5 0
I think it 21 !! But I am not sure
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25 POINTS QUICK!!! could someone please help me with these two problems?? and possibly explain?? i need work too please! 25 POIN
svet-max [94.6K]

Answer:

the first one A the sum of the angles are 10x+10 For the second one B the sum wud be 8x+20

Step-by-step explanation:

you juts add them all together


6 0
3 years ago
Read 2 more answers
Pls help me with this! (Links=report)
xxMikexx [17]

Answer:

XZ=12 in

Step-by-step explanation:

area of a rhombus is A=pq/2

where p=WY=15.5 and A=93 and q=XZ

93=15.5(XZ)/2

93(2)=15.5(XZ)

186/15.5=XZ

XZ=12 in

7 0
3 years ago
What percent of 67.5 is 7.02
skad [1K]
Use the proportion equation. Cross multiply. Answer is 10.4%

6 0
3 years ago
Six different​ second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re
mixer [17]

Answer: range= 26, variance= 80 and standard deviation= 8.94

Step-by-step explanation:

Range = highest - lowest

Range = 146 - 120

Range= 26

Let m be mean

M=mean=sum/n

Mean=(120+134+146+127+138+133) / 6

M=798/6

M=133

The standard deviation sample formula:

S.D = sqrt( Summation of |x-m|^2 / n-1)

Let start finding:

|x-m|^2

For 1st: |120-133|^2=169

For 2nd: |134-133|^2=1

For 3rd: |146-133|^2=169

For 4th: |127-133|^2=36

For 5th: |138-133|^2=25

For 6th: |133-133|^2=0

Summation of |x-m|^2 = 400

The standard deviation formula is :

S.D = sqrt( Summation of |x-m|^2 / n-1)

S.D= sqrt(400 / 5)

S.D=sqrt(80)

S.D= 8.94

Variance = (Summation of |x-m|^2 / n-1)

Variance= 400/5

Variance= 80

3 0
3 years ago
Read 2 more answers
Around 2.232 to the nearest hundredth
Korolek [52]

2.232\approx2.32

3 0
2 years ago
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