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3 years ago

Can someone tell me the answer to this

Mathematics

1 answer:

geniusboy [140]3 years ago

8 0

Answer:

1.423 x $10^{12}$

5.78 x $10^{-6}$

Step-by-step explanation:

Scientific notation is a way of denoting a quantity as a single-digit number followed by decimals, times a base of ten.

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Find area of triangle whose base is 2 √3 and height is 3 √3

Lera25 [3.4K]

Area of a triangle = base times height
A = 2√3 times 3√3
A = 18
The answer is 18
Hope that helps

7 0

3 years ago

Evaluate the expression for a = 5, b = 11, and c = 3. 2a + 2c(b − 5) A. 64 B. 46 C. 54 D. 163

Artemon [7]

2a +2c(b-5)

substitute a=5 b=11 c=3

2(5) +2(3) (11-5)

10+6(6)

10+36

Choice B

8 0

3 years ago

HELP giving brainlest and more points

cupoosta [38]

Answer:

4,000,000,000 meters

Step-by-step explanation:

4 x 10,000,000,000,000 x 0.0001 = 4,000,000,000 meters

4 0

3 years ago

Read 2 more answers

Simplify the expression cos x cot x+ sin x please select the best answer from the choices provided a.0, b.csc x, c. Tan x, d sec

expeople1 [14]

Answer:

$cot x = \frac{cos x}{sin x}$

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

Step-by-step explanation:

For this case we have the following expression given:

$cos x cot x + sin x$

We know from math properties that the definition for cot is $cot x = \frac{cos x}{sin x}$

If we use this definition we got:

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

Now we can use the following identity:

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

$csc x -sin x + sin x = csc x$

And then the best option for this case would be:

b.csc x

4 0

3 years ago

The length of a rectangle is 3 less than twice the width. The perimeter of the rectangle is 66. Find the length and width of the

posledela

Answer:

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Step-by-step explanation:

3 0

3 years ago