Answer:
D. 19
Step-by-step explanation:
because they are parallel bases you can compare
63/57 = 21/x
x = 19
The value of the expression 13(a×b + a²) + 4 is 1434 after plugging a = 5 and b = - 3.
<h3>What is an expression?</h3>
It is defined as the combination of constants and variables with mathematical operators.
The expression is:
= 13(a×b + a²) + 4
Plug a = 5
b = -3
= 13(5×(-3) + 5a²) + 4
= 13(-15 + 5(25)) + 4
= 13(-15 + 125) + 4
The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that is +, -, ×, and ÷.
= 13(110) + 4
= 1430 + 4
= 1434
Thus, the value of the expression 13(a×b + a²) + 4 is 1434 after plugging a = 5 and b = - 3.
Learn more about the expression here:
brainly.com/question/14083225
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Given:
A bond with an annual coupon rate of 4.8%, bond value is $970. The bond's current yield can be calculated using this formula:
i = F<em>i</em><em>b
</em><em>
</em>where i = bond <em />yield<em>
</em>F = $970
<em>ib </em>= 4.8%
i = 970*(0.048)
i = $46.56
Answer:
About 706.5 ft.
Step-by-step explanation: The formula for area of a circle is the radius squared (multiplied by itself) times 3.14. So 15 times 15= 225, times 3.14=706.5
