All categories

2 years ago

The expression sin x (cos x cot x - sin x) simplifies to?

Mathematics

2 answers:

nikdorinn [45]2 years ago

8 0

◆ Trigonometric Identities ◆

Hey !!

Check the attachment.
Hope it helps you :)

liraira [26]2 years ago

6 0

This is the correct answer. I just got it wrong on my quiz but this was the right option. cos(2x)

You might be interested in

Turn 294% to a fraction

damaskus [11]

294% as a fraction is 294/100
This is an improper fraction.

Hope this helps :)

8 0

3 years ago

Read 2 more answers

HELP please!!!! I WILL GIVE BRAINLY

Inessa [10]

Answer:

$\sqrt{57} = 7.5$

$\sqrt{26} = 5.1$

8 0

3 years ago

Read 2 more answers

I’ll give the Brainliest to who answers this question with a reasonable explanation.

topjm [15]

Answer:

$143.8\:\mathrm{ft^2}$

Step-by-step explanation:

The composite figure shown in the picture consists of a semi-circle and a trapezoid. We can even break this trapezoid into a rectangle and two triangles for even simpler calculations. We can find the total area of the figure by simply adding the total area of the shapes we will break the figure into:

Area of semi-circle (half the area of a circle): $\frac{1}{2}\cdot 4.5^2\cdot \pi$

Area of trapezoid (average of bases multiplied by height): $16\cdot 7$

Thus, the total area of the figure is:

$\frac{1}{2}\cdot 4.5^2\cdot \pi+16\cdot 7=143.808625618\approx \boxed{143.8\:\mathrm{ft^2}}$

3 0

2 years ago

You are given the dollar value of a product in 2015 and the rate at which the value of the product is expected to change during

Charra [1.4K]

Answer:

V = $3.50t + $90.5....

Step-by-step explanation:

V(t) is a function of t that expresses the value in year 2000+t.

We know that the increase is $3.50 times t.

So,

V(t) = $3.50t + c

where c is the constant.

V(15) = $3.50 (15) + c = $143 [t=15 as mentioned in the question]

and therefore

c = $143 - $3.50 (15)

c= $143 - $52.50

c= $90.5

Now we got the value of c. We can write the equation as

V = $3.50t + $90.5....

4 0

2 years ago

A sampling of hemlock trees revealed that 7 out of 190 trees are infected with insects. About how many of the 950 hemlock trees

nignag [31]

Answer:

About 35 trees in a state park are infected with insects

Step-by-step explanation:

we know that

7 out of 190 trees are infected with insects

using proportion

Find out about how many of the 950 hemlock trees in a state park are infected with insects

$\frac{190}{7}=\frac{950}{x} \\\\x=7(950)/190\\\\x= 35$

therefore

About 35 trees in a state park are infected with insects

3 0

3 years ago