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tino4ka555 [31]

2 years ago

6

Help?! I feel so unmotivated unfortunately

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