Type the correct answer in each box. Consider the expressions shown below.
A
B
С
-8.12
3. + 4 82 — 3.1 + 8 812 + 36 - 4
Complete each of the following statements with the letter that represents the expression.
(3x2 - 7x + 14) + (502 + 4x 6) is
is equivalent to expression
– 5x – 3) + (-10x2 + 2x + 7) is equivalent to expression
(12.02 – 2x – 13) + (-4x2 + 5x + 9) is equivalent to expression
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true

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

answer: (3,11) is your answer.

110698.56 square miles

step-by-step explanation:

multiply 3.8 by 102

387.6

multiply 2.8 by 102

285.6

multiply those two to get