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sergeinik [125]
3 years ago
15

Is 30cm,122cm,125cm a right angle

Mathematics
1 answer:
Mariana [72]3 years ago
6 0
No it's not
a^2=b^2+c^2
125^2=30^2+122^2
15625=900+14884
15625=15784
15625is not equal to 15784 so it is not right angle
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What are the angle measurements of 1,2,3 & 4 for #3 & the measurements for 1 &2 on #4?
gogolik [260]

Step-by-step explanation:

iii=90

41+i=90(opposite angle)

i=90-41

i=49

26+ii+49+41=180(straight line angle)

116+ii=180

ii=180-116

ii=64

50+25+iv=26+64(opposite angle)

75+iv=90

iv=90-75

iv=15

55+i+55=180(straight line angle)

110+i=180

i=180-110

i=70

ii=55(alternative angle)

8 0
4 years ago
What is the perimeter of a square with a dimensions of (3x^2 +1)<br><br>Please help I need it ASAP.​
chubhunter [2.5K]

Answer:

12x^2+4

Step-by-step explanation:

4(3x^2+1)

3 0
3 years ago
50 POINTS!!!!!!!!!!!!!!!
hram777 [196]

Answer:

10.125

Step-by-step explanation:

Given the data :

28,45,12,34,36,45,19,20

The mean absolute deviation of the data is :

Σ|x - mean| / n

n = number of values = 8

Mean = Σx / n = 239 / 8

Mean = 29.875

Take the sum of the absolute value if the difference between each data value and the mean, then divide by the data size

Using a mean absolute deviation calculator ;

Mean absolute deviation = Σ|x - mean| / n = 10.125

6 0
3 years ago
What are the possible steps involved in solving the equation shown? Select three options.
Likurg_2 [28]

Answer:

Distribute 1.2 to 6.3 and -7x

Combine 3.5 and 7.56

suhtract 11.06 from both sides

5 0
3 years ago
Which term of the AP:3,15,27, 39,.....will be 132 more than its 54th term​
horsena [70]

Answer:

n=65th term

Step-by-step explanation:

AP:3,15,27,39......

From the AP

a=3

a+d=15

a+2d=27

3+d=15 (1)

3+2d=27 (2)

Subtract (1) from (2)

We have,

2d-d=27-15

d=12

54th term=a+(n-1)d

=3+(54-1)12

=3+(53)12

=3+636

=639

The term is 132 more than the 54th term

132+54th term

=132+639

=771

Find the term

771=a+(n-1)d

771=3+(n-1)12

771-3=12n-12

768=12n-12

768+12=12n

780=12n

n=780/12

=65

n=12

The term which is 132 more than the 54th term is the 65th term

4 0
3 years ago
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