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3 years ago

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1 0. Eight members of an origami club 1 will make a paper chain together The chain is 4 feet long Each 7 member will make an equ

al part of the chain How much of the chain in feet will each member make Draw a picture to solve (1 09)

2 answers:

Pavlova-9 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Please

Colt1911 [192]3 years ago

3 0

I believe you have to divide.

8/4=2.

Pls let me know if this helps

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EXPLAIN THE SECOND PART.......

alexdok [17]

$\tan^2\theta-\sin^2\theta=\dfrac{\sin^2\theta}{\cos^2\theta}-\sin^2\theta$
$=\sin^2\theta\left(\dfrac1{\cos^2\theta}-1\right)$
$=\sin^2\theta(\sec^2\theta-1)$
$=\sin^2\theta\tan^2\theta$

Now if $0^\circ$ , then both $\sin\theta>0$ and $\tan\theta>0$ . Adding two positive numbers gives another positive number, so $\tan\theta+\sin\theta>0$ . Why this is useful will be apparent shortly.

Back to the identity:

$\tan^2\theta-\sin^2\theta=\tan^2\theta\sin^2\theta$

Factorizing the left hand side, we have

$(\tan\theta-\sin\theta)(\tan\theta+\sin\theta)=\tan^2\theta\sin^2\theta$

Now, any number squared will be positive, which means the right hand side is necessarily greater than 0.

We showed earlier that $\tan\theta+\sin\theta>0$ . So we understand that we have

$\underbrace{(\tan\theta-\sin\theta)}_?\underbrace{(\tan\theta+\sin\theta)}_+=\underbrace{\tan^2\theta\sin^2\theta}_+$

The only way to multiply a number by a positive number to get yet another positive number is to have the first number also be positive, which means

$\tan\theta-\sin\theta>0$

and from this it follows that

$\tan\theta>\sin\theta$

in the provided region.

6 0

3 years ago

What is 2x +2 when x =O

almond37 [142]

Answer:

2

Step-by-step explanation:

2 x 0= 0 + 2 = 2

8 0

3 years ago

Read 2 more answers

Rikki's hourly salary is $9.64. Last week she worked a 22-hour week. How much did she earn?

jek_recluse [69]

<h3>Answer: 212.08 dollars</h3>

Work Shown: Multiply 9.64 and 22 to get 9.64*22 = 212.08

7 0

4 years ago

Y varies directly as x and y = 18 when x= 1/2. write an equation that relates y and x

Mice21 [21]

$\bf \qquad \qquad \textit{direct proportional variation}
\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=18\\
x=\frac{1}{2}
\end{cases}\implies 18=k\cfrac{1}{2}\implies 18=\cfrac{k}{2}
\\\\\\
36=k\qquad therefore\qquad \boxed{y=36x}$

5 0

3 years ago

Use the drop down menus to complete the statements about the function p(x)=x(x-1)+1

soldi70 [24.7K]

Answer:

equal -1 plus 1 equals what

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2 years ago