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3 years ago

This is hey confusing because I didn't go to school when they gave a lesson about this so please help.

Mathematics

1 answer:

alex41 [277]3 years ago

8 0

I think that this is just showing how you can make different percentages by multiplying/dividing by specific numbers.

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Let sintheta =2times square root 3/5 and pi/2

Gre4nikov [31]

Given:

$sin\theta=\frac{2\sqrt{3}}{5},\text{ and }\frac{\pi}{2}$

It's required to find cos 2θ.

We use the formula:

$cos(2\theta)=1-2sin^2\theta$

Substituting:

$cos(2\theta)=1-2(\frac{2\sqrt{3}}{5})^2$

Operating:

$\begin{gathered} cos(2\theta)=1-2*\frac{4*3}{25} \\ cos(2\theta)=1-\frac{24}{25} \\ cos(2\theta)=\frac{1}{25} \end{gathered}$

Answer: 1/25

3 0

1 year ago

A production system has a total daily output of 400 units and a total labor of 350 hours, what kind of productivity measure can

fomenos

Answer:

1.14 products per hour of labor

Step-by-step explanation:

To calculate the daily productivity would be the amount of products per hour of labor.

That is: 400 products / 350 hours of labor, and that is approximately 1.14 products per hour of labor.

Which means that for every hour of labor, 1.14 products are produced in one day, which would be a factor of productivity.

4 0

3 years ago

Factorisation of ax^2 + bx + c

tigry1 [53]

Answer:

-5(t+3)(t-6)

Step-by-step explanation:

-5²+15+90

= -5(t²-3t-18)

= -5(t+3)(t-6)

6 0

3 years ago

Plz help last one thanks

chubhunter [2.5K]

Answer:

110.45 inches cubed

Step-by-step explanation:

5in x 4.7in x 4.7in

6 0

3 years ago

This homework is due tomorrow

Burka [1]

Answer:

left, 8

down, 5

Step-by-step explanation:

7 0

3 years ago