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S_A_V [24]
3 years ago
9

What is d square root of 49​

Mathematics
2 answers:
fomenos3 years ago
3 0

Answer:

± 7

Step-by-step explanation:

Given

d = \sqrt{49}, then

d = 7 or - 7, that is ± 7

Since 7 × 7 = 49 and - 7 × - 7 = 49

Sati [7]3 years ago
3 0

Answer:

7 is the square root of 49

Step-by-step explanation:

we can find it by using lcm method

or

we know 7*7 is 49

so

49/7 - 7

therefore square root of 49 - 7

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The average height of a 13 year old male in the U.S. is 60 inches, with a standard deviation of 2 inches. The average weight of
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Determine whether or not 630 is a triangular number. start with the formula t n = n ( n + 1 ) 2 and then use the quadratic formu
ziro4ka [17]
Triangular sequence = n(n + 1)/2

If 630 is a triangular number, then:

n(n + 1)/2  = 630

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n(n + 1)/2  = 630

n(n + 1)  = 2*630

n(n + 1)  = 1260

n² + n = 1260

n² + n - 1260 = 0

By trial an error note that 1260 = 35 * 36

n² + n - 1260 = 0

Replace n with 36n - 35n

n² + 36n - 35n - 1260 = 0

n(n + 36) - 35(n + 36) = 0

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