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tigry1 [53]
3 years ago
14

Simplify cos^-1 (sqrt 3/2) A. 60° B. 30° C. 240° D. 150°

Mathematics
1 answer:
Fantom [35]3 years ago
7 0
B.) 30 degrees would be correct here
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Joanne's Dress Shop received an invoice dated July 25 for $1,400, with terms of 2/10, 1/15, n/60. On August 8, Joanne's Dress Sh
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The actual amount that should be credited is $757.58.

<u>Solution:</u>

Given that,

2% Discount if paid in 10 days.

1% Discount if paid in 15 days, (but greater that 10 days)

Net due in 60 days.

That is,

\bold{1400\times0.98 = 1372} will close the acount on days 1-10

\bold{1400\times0.99 = 1386} will close the acount on days 11-15

And August 8 is Day 15 and falls under the 1% discount rule.

Therefore, we have to divide the partial payment by the complement of the discount rate.

\bold{\Rightarrow\frac{750}{0.99} = 757.58} from the balance, and \bold{1400.00 - 757.58 = 642.42} is due by day 60.

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4 years ago
Teresa and Elaine want to know who reads more pages per hour. Teresa keeps track of the number of pages she reads in a graph, an
s344n2d4d5 [400]
 Teresa --12÷0.5=24     --       24 pages per hour
Elaine    -- 70÷2.5=28     --      28 pages per hour
E--Elanie reads the fastest
4 0
4 years ago
Help!! Please show work!!
irina [24]
The problem begins by stating that 27 students registered for this class.  In other words, there were 27 students in the original class.  That's the answer to Question 1.  Now subtract 2 (male students) from 27:  How many students are left still?  That's the answer to Question 2.

Please post no more than 1 or 2 questions at a time, and please show your own work (or ask questions), so that you will be involved in the solution.

7 0
4 years ago
Factor the expression: <br> 16x^2 - 16xy^3 + 4y^6
Licemer1 [7]

Answer:

(4x - 2y³)²

Step-by-step explanation:

a² - 2ab + b² = (a - b)²

16x² = 4²x² = (4x)²  , Therefore, a = 4x

4y⁶=2²(y³)² = (2y³)² = b² , Therefore, b = 2y³

2ab = 2*4x*2y³ = 16xy³

16x² - 16xy³ + 4y⁶ = (4x)² - 2* 4x * 2y³ + (2y³)²

                            = (4x - 2y³)²

7 0
4 years ago
Read 2 more answers
How do you multiply and divide negative numbers
mylen [45]

Answer:

Step-by-step explanation:

When multiplying or dividing two negatives, multiply or divide the normal way and make your answer positive. Two negatives make a positive.

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3 years ago
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