Which of the following is a zero pair? a. 12, 12 b. -12, -12 C. 12, -12 d. O, 12

Mary wrote a book of 1536 pages. She numbered all pages by hand. How many times did she write the digit 6?

abruzzese [7]

Hi there!

~

If my logic doesn't fail me here, we have a total of 290 + 145 + 4 = 439 total 6s.

Hope this helped you!

5 0

3 years ago

Sylvia and her sister are both reading books. Sylvia reads 2 pages every 5 minutes. Her sister reads 3 pages every 6 minutes. Wh

umka21 [38]

Answer:

6

Step-by-step explanation:

Silvia: 2 pages to 5 minutes

into...

Silvia: 1 page to __ minutes

Find Unit Rate : 5/2= 2.5

Unit Rate for Silvia is 2.5

Written out : 2 pages x 2.5 = 5 minutes

Example : 1 page to 2.5 minutes

What we found : ___ pages to 60 minutes(60 divided by 2.5) is

<h2>24 pages to 60 minutes</h2>

Silvia's sister: 3 pages to 6 minutes

into...

Silvia's sister: 1 pages to ___ minutes

Find Unit Rate : 6/3= 2

Unit Rate for Silvia is 2

Written out : 3 pages x 2 = 6 minutes

Example : 1 page to 2 minute

What we found : ___ pages to 60 minutes(60 divide by 2) is

<h2>30 pages to 60 minutes </h2>

Final Step : 30 - 24 = 6

7 0

3 years ago

Cot^2x/cscx-1=1+sinx/sinx

KATRIN_1 [288]

$\bf \textit{difference of squares}
\\\\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)
\\\\\\
sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta)\\\\
-------------------------------\\\\
\cfrac{cot^2(x)}{csc(x)-1}=\cfrac{1+sin(x)}{sin(x)}\impliedby \textit{let's do the left-hand-side}$

$\bf \cfrac{\quad \frac{cos^2(x)}{sin^2(x)}\quad }{\frac{1}{sin(x)}-1}\implies \cfrac{\quad \frac{cos^2(x)}{sin^2(x)}\quad }{\frac{1-sin(x)}{sin(x)}}\implies \cfrac{cos^2(x)}{sin^2(x)}\cdot \cfrac{sin(x)}{1-sin(x)}
\\\\\\
\cfrac{cos^2(x)}{sin(x)}\cdot \cfrac{1}{1-sin(x)}\implies \cfrac{cos^2(x)}{sin(x)[1-sin(x)]}$

$\bf \cfrac{1-sin^2(x)}{sin(x)[1-sin(x)]}\implies \cfrac{1^2-sin^2(x)}{sin(x)[1-sin(x)]}
\\\\\\
\cfrac{\underline{[1-sin(x)]}~[1+sin(x)]}{sin(x)\underline{[1-sin(x)]}}\implies \cfrac{1+sin(x)}{sin(x)}$

5 0

3 years ago

PreCalculus Unit 3 Activity 90 POINTS

lesya [120]

Answer:

19900kk

Step-by-step explanation:

i need deez points fr doe

5 0

3 years ago

Read 2 more answers

Interest expense would be classified on a multiple-step income statement under the heading a) Other revenues and gains. b) Opera

DiKsa [7]

Answer:

Answer is c

Step-by-step explanation:

Interest expense has no relation with the companies' principal activities. Therefore, on a multiple-step income statement, besides the other expenses like lawsuit settlements, extraordinary losses from investments etc., interest expense is listed in the non-operating and other section.

5 0

3 years ago