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Simora [160]
2 years ago
13

Class 8 squares and square roots without adding find the sum of a) 1+3+5+7+9+11+13+15+17.

Mathematics
1 answer:
Nata [24]2 years ago
8 0

Answer:

given

n=9

a=1

d=3-1=2

Step-by-step explanation:

now , by formula,

sn = n/2(2a+(n-1)d)

= 9/2(2×1+(9-1)×2)

=9/2×18

=81

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What is the greatest common factor of 40x^ 5 y^ 2 and 32x^ 2 y^ 3 ?
Neko [114]

Answer:

the greatest common factor of 40x^ 5 y^ 2 and 32x^ 2 y^ 3 is 1

Step-by-step explanation:

Find the prime factors of each term in order to find the

greatest common factor (GCF).

1

4 0
3 years ago
Due later pls help
Andre45 [30]

Answer:

1. 4z=-8

z= -8/4= -2

2. 2/3t=8/1

2= 24t

t= 0.08

3. 15-1=-8d

14=-8d

d= -1.75

4. 5r-2r=18

3r= 18

r= 6

5. 24= 8y

y=3

6. 3t-3= -t+5

3t+t= 5+3

4t=8

t=2

7. 2x-x= 3+6

x=9

5 0
3 years ago
What type of symmetry does this figure have?
BARSIC [14]
Rotational symmetry. Because you can rotate it and put a line through it and it would all look the same
4 0
3 years ago
Read 2 more answers
Which points are on the graph of f(x)=(1/3)^x
Paladinen [302]

Answer:

Step-by-step explanation:

4 0
3 years ago
5a + 4b^2<br> (if a = -11 and b = 3)
Degger [83]
5(-11)+4(3)^2 = -19
The answer is -19
8 0
3 years ago
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