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3 years ago

'Quiz: Math Review Quiz

Mathematics

1 answer:

pentagon [3]3 years ago

8 0

Answer:

The tax rate is 4.3%

Step-by-step explanation:

First, we have to assume $2.79 is 100%. We know that x% equals 0.12 of the output value. Now we have two simple equations: 100%=2.79 and x%=0.12.

Then, 100%/x%=2.27/0.12 and that gives us 4.3%!

Hope this helps.

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in the gym one sixth of the students are 5th graders one third are fourth graders and one fourth of the remaining students are 3

Sati [7]

Dear Sunshine76, first add 1/6+1/4+1/3=3/4. Then, find 3/4 of 96 to get 24 students in 3rd grade.

5 0

3 years ago

W/6 + 5/8 = -1 3/8 Solve the equation

kozerog [31]

Answer:

w = -12

Step-by-step explanation:

w/6 + 5/8 = -1 3/8

Subtract 5/8 from each side

w/6 + 5/8-5/8 = -1 3/8 - 5/8

w/6 = -1 3/5 - 5/8

w/6 = -1 8/8

w/6 = -2

Multiply by 6 on each side

w/6 *6 = -2*6

w = -12

4 0

3 years ago

Read 2 more answers

Which point on the graph of g(x)=(1/5)^x? HELPP

Cloud [144]

Answer:

(-1,5) and $(3, \frac{1}{125})$ are points on the graph

Step-by-step explanation:

Given

$g(x) = \frac{1}{5}^x$

Required

Determine which point in on the graph

To get which of point A to D is on the graph, we have to plug in their values in the given expression using the format; (x,g(x))

A. (-1,5)

x = -1

Substitute -1 for x in $g(x) = \frac{1}{5}^x$

$g(x) = \frac{1}{5}^{-1}$

Convert to index form

$g(x) = 1/(\frac{1}{5})$

Change / to *

$g(x) = 1*(\frac{5}{1})$

$g(x) = 5$

This satisfies (-1,5)

Hence, (-1,5) is on the graph

B. (1,0)

x = 1

Substitute 1 for x

$g(x) = \frac{1}{5}^x$

$g(x) = \frac{1}{5}^1$

$g(x) = \frac{1}{5}$

(1,0) is not on the graph because g(x) is not equal to 0

C. $(3, \frac{1}{125})$

x = 3

Substitute 3 for x

$g(x) = \frac{1}{5}^x$

$g(x) = \frac{1}{5}^3$

Apply law of indices

$g(x) = \frac{1}{5} * \frac{1}{5} * \frac{1}{5}$

$g(x) = \frac{1}{125}$

This satisfies $(3, \frac{1}{125})$

Hence, $(3, \frac{1}{125})$ is on the graph

D. $(-2, \frac{1}{25})$

x = -2

Substitute -2 for x

$g(x) = \frac{1}{5}^x$

$g(x) = \frac{1}{5}^{-2}$

Convert to index form

$g(x) = 1/(\frac{1}{5}^2)$

$g(x) = 1/(\frac{1}{5}*\frac{1}{5})$

$g(x) = 1/(\frac{1}{25})$

Change / to *

$g(x) = 1*(\frac{25}{1})$

$g(x) = 25$

This does not satisfy $(-2, \frac{1}{25})$

Hence, $(-2, \frac{1}{25})$ is not on the graph

8 0

4 years ago

G(x) = 3x^2 + 10x-8 Use the drop-down menus to factor the expression and find the zeros of g(x).

REY [17]

Answer:

g(x) = (3x - 2)(x + 4)

x = {-4, 2/3}

Step-by-step explanation:

g(x) = 3x^2 + 10x - 8

Factor

g(x) = (3x - 2)(x + 4)

Zero I

3x - 2= 0

3x = 2

x = 2/3

Zero II

x + 4 = 0

x = -4

x = {-4, 2/3}

3 0

3 years ago

What is the volume of a rectangular prism with length 90 cm, height of 70 cm, and the width of 40 cm?

sergij07 [2.7K]

Volume=Legnth times width times height
legnth=90
height=70
width=40
volume=90 times 40 times 70
volume=3600 times 70
volume=252000

answer is v=252,000 cm^3

6 0

3 years ago

Read 2 more answers