I have multiple choice homework questions that make me confused, so please answer the 11 Questions (26,27,28,29,30,31,32,33,35,36,41) with showing your work!

and skip Question #34

26. logjøk = 1

(b) {f}

(a) {64}

(e) (256)

(d)

None of these

27

59 = 23

(a) (1.95}

(b) {2.05}

(c) {.66}

(d) {1.76)

28

log, (x + 2) + log, (x – 2) = log, 21

(a) {}

(b) {5,-5)

(c) {5}

(d)

{4}

29.

log2 (13x + 2) – log2 (x + 2) = 2

(a)

{5}

(b) {4}

(c

)

{7}

(d)

None of

these

Solve each problem.

30

A radioactive substance is decaying so that the number

of grams present at t days is given by the function

A(t) = 4000e –03t.

In how many days, to the nearest whole day, will the

substance decay to half its original amount?

(a)

(c)

10 days

4 days

(b)

(d)

21 days

23 days

31.

Suppose that $15,000 is deposited at 8.5% annual inter-

est and no withdrawals are made. Find the amount in

the account after 5 years if interest is compounded

continuously.

(a) $21, 375

(c) $23,813.92

(b) $22, 841.92

(d) $22, 943.86

Graph the quadratic function f(x) = -2×2 + 2.

7

(a)

(b)

(c)

(d)

(0, 2)

(0.21

(2.0)

(0, 1),

-2

33

The height in feet of an object thrown upward is given by

h = 80t – 16t2 after t seconds. After how many seconds

does the object reach its maximum height?

(a)

3 seconds

(b)

5 seconds

(c) 2

seconds

(d) až

seconds

Use the tests for symmetry to determine all symmetries of the following

relations.

34.

y = 6 – x2

(a)

x-axis only

Origin only

(b) y-axis only

(d)

x-axis, y-axis, and origin

(c)

35.

Which graph is increasing on (–, -1), decreasing on

(3,-), and constant on (-1, 3)?

(a)

(b)

(c)

(d)

( (-1, 3)

ULD

TITITETT

A

36

Graph the circle whose equation is

(x + 2)2 + (y – 1)2 = 16.

V

(a)

!

(b)

(c)

(d)

4

(-1,214

(2, -1) X

1, 2:

LALLILL

1-2, 1)

4).

f(x)=

1- 2x

1 –

(a)

(b)

(c)

(d)

V3-2