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3 years ago

Please someone help me please due in 10 min

Mathematics

2 answers:

Lelu [443]3 years ago

4 0

X=7 and y=4 think this is right

schepotkina [342]3 years ago

3 0

X=7 and y=4 sorry if i’m too late

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Please check ASAP!!!!

saveliy_v [14]

Yes! your right. The answer is correct :)

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3 years ago

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Verify sin^4x − sin^2x = cos^4x − cos^2x is an identity

Inga [223]

Answer:

<h2>It's an identity</h2>

Step-by-step explanation:

$\sin^4x-\sin^2x=\cos^4x-\cos^2x\\\\L_s=\sin^4x-\sin^2x=\sin^2x(\sin^2x-1)=\sin^2x(-\cos^2x)=-\sin^2x\cos^2x\\\\R_s=\cos^4x-\cos^2x=\cos^2x(\cos^2x-1)=\cos^2x(-\sin^2x)=-\sin^2x\cos^2x\\\\L_s=R_s\qquad\bold{CORRECT}$

$\text{Used:}\\\\\sin^2x+\cos^2x=1\Rightarrow\left\{\begin{array}{ccc}\cos^2x=1-\sin^2x\\\sin^2x=1-\cos^2x\end{array}\right\Rightarrow\left\{\begin{array}{ccc}-\cos^2x=\sin^2x-1\\-\sin^2x=\cos^2x-1\end{array}\right$

4 0

3 years ago

Read 2 more answers

Please answer!!!!!!!!!!!

irga5000 [103]

Answer:

i think its A

Step-by-step explanation:

7 0

3 years ago

#46 I have tried several times

natita [175]

Let x be the number of tickets sold
Cost of x tickets = 32.5.x
Cost of convenience = 3.3.x
Process charges (for ONE ORDER, whatever the number of tickets) = $5.90

Hence:
$32.5(x) + $3.3(x) + $5.90 = $220.70

$35.8(x) = $220.90-$5.90

$35.8(x) = $214.8

And x = 214.8/35.8 = 6 tickets

4 0

3 years ago

We need to find the slope

Colt1911 [192]

Hello!

Step-by-step explanation:

Slope: $\frac{Y^2-Y^1}{X^2-X^1}=\frac{rise}{run}$

$\frac{9-3=6}{2-(-1)=2+1=3}=\frac{6}{3}=2$

<em><u>Therefore, the slope is 2.</u></em>

<em><u>Answer is 2.</u></em>

Hope this helps!

Thank you!

-Charlie

Have a great day!

7 0

4 years ago