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tino4ka555 [31]
2 years ago
6

Help?! I feel so unmotivated unfortunately

Mathematics
1 answer:
valkas [14]2 years ago
3 0
A. 34,964.3
b. 456,736
c. 2,000,000
d. 30,000

i believe are the correct answer, & i totally know how you feel. get well soon ♥︎
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Verify that (cos²a) (2 + tan² a) = 2 - sin² a....<br>​
Sveta_85 [38]

Trigonometric Formula's:

\boxed{\sf \ \sf \sin^2 \theta + \cos^2 \theta = 1}

\boxed{ \sf tan\theta = \frac{sin\theta}{cos\theta} }

Given to verify the following:

\bf (cos^2a) (2 + tan^2 a) = 2 - sin^2 a

\texttt{\underline{rewrite the equation}:}

\rightarrow \sf (cos^2a) (2 + \dfrac{sin^2 a}{cos^2 a} )

\texttt{\underline{apply distributive method}:}

\rightarrow \sf 2 (cos^2a) + (\dfrac{sin^2 a}{cos^2 a} ) (cos^2a)

\texttt{\underline{simplify the following}:}

\rightarrow \sf 2cos^2 a  + sin^2 a

\texttt{\underline{rewrite the equation}:}

\rightarrow \sf 2(1 - sin^2a )  + sin^2 a

\texttt{\underline{distribute inside the parenthesis}:}

\rightarrow \sf 2 - 2sin^2a   + sin^2 a

\texttt{\underline{simplify the following}} :

\rightarrow \sf 2 - sin^2a

Hence, verified the trigonometric identity.

7 0
2 years ago
Read 2 more answers
Justify each step. <br> x/3-7=11 <br> x/3=18<br> x=6
Nina [5.8K]
This is the steps for equation solving for the value of x,
x/3-7 = 11
now 7 goes to the other side of equation by changing the sign from - to +,
x/3 = 11 + 7
x/3 = 18
now when we multiply both sides of equation with 3 or 3 goes to the other side of equation and multiply with 18 leaving x alone here for finding the value of x,
and we get, x = 54
at the end of equation we get x = 54, if the equation was in the form 3x - 7 = 11, then we will get x = 6
8 0
3 years ago
Need that help.......plz
Anika [276]
For Question Number one
(2+10)²+4=148

Question Number two:
(6+5)×(8-6)=22



5 0
3 years ago
Sondra gets $75 a week, plus 10 percent of sales. Which equation best represents<br> her salary?
Kryger [21]

Answer:

The total salary for the week

y = 0.1x + $75

Step-by-step explanation:

Let "x" be the total sales in the week.

Sondra gets $75 a week, plus 10% of "x"

Let "y" the total salary.

So the total salary for the week y = 10% of x + $75

y = 0.1x + $75

7 0
3 years ago
8+35/w=15<br>a.8<br>b.6<br>c.10<br>d.5​
RoseWind [281]

Answer:

\boxed{ \bold{ \huge{ \bold{w = 5}}}}

Option D is the correct option

Step-by-step explanation:

\sf{8 +  \frac{35}{w}  = 15}

⇒\sf{ \frac{8 \times w + 35}{w}  = 15} { w ÷ 1 = w , So, I wrote 8 × w }

⇒\sf{ \frac{8w + 35}{w}  = 15}

Apply cross product property

⇒\sf{8w + 35 = 15w}

Move 15w to left hand side and change it's sign

Similarly, Move 35 to right hand side and change it's sign

⇒\sf{8w - 15w  =  - 35}

Collect like terms

⇒\sf{ - 7 w =  - 35 }

Divide both sides of the equation by -7

⇒\sf{ \frac{ - 7w}{ - 7}  =  \frac{ - 35}{ - 7} }

Calculate

⇒\sf{w = 5}

Hope I helped!

Best regards!!

3 0
3 years ago
Read 2 more answers
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