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sasho [114]
3 years ago
13

Evaluate (ab)^2 for a=4 and b=3. A. 81B. 144C. 24D. 36

Mathematics
1 answer:
worty [1.4K]3 years ago
8 0
Substitute the number for the appropriate variables and solve
(ab)^2
(4×3)^2
(12)^2
12×12
144
Your answer is B.144
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What is 195 squared to the nearest integer
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In a two-digit number, the tens digit is 5 less than the units digit. The number itself is five more than three times the sum of
Luden [163]

Given:

In a two-digit number, the tens digit is 5 less than the units digit.

The number itself is five more than three times the sum of its digits.

To find:

The number.

Solution:

Let the two digit number is ab. So,

ab=10a+b

Tens digit is 5 less than the units digit.

a=b-5       ...(i)

The number itself is five more than three times the sum of its digits.

10a+b=3(a+b)+5

10a+b=3a+3b+5

10a+b-3a-3b=5

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Using (i) and (ii), we get

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b=8

Putting b=8 in (i), we get

a=8-5

a=3

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5 0
2 years ago
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454,337 + 431,986 = </span><span>886,323

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2 years ago
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