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3 years ago

what is 7.5 x 10 to the negative 3rd power + 5.8 x 10 to the negative 3rd power in scientific notation

Mathematics

1 answer:

Nastasia [14]3 years ago

6 0

The answer is $1.33*10^-3$ , or 0.0133.

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(I WILL MARK BRAINLYIEST ONLY IF CORRECT)The first five terms of a pattern are given below. 36,38,40,42,44 which expression can

nekit [7.7K]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine cos^4

Firdavs [7]

The expression cos⁴ θ in terms of the first power of cosine is [ 3 + 2cos 2θ + cos 4θ]/8.

The power-reducing formula, for cosine, is,

cos² θ = (1/2)[1 + cos 2θ].

In the question, we are asked to use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine cos⁴ θ.

We can do it as follows:

cos⁴ θ

= (cos² θ)²

= {(1/2)[1 + cos 2θ]}²

= (1/4)[1 + cos 2θ]²

= (1/4)(1 + 2cos 2θ + cos² 2θ] {Using (a + b)² = a² + 2ab + b²}

= 1/4 + (1/2)cos 2θ + (1/4)(cos ² 2θ)

= 1/4 + (1/2)cos 2θ + (1/4)(1/2)[1 + cos 4θ]

= 1/4 + cos 2θ/4 + 1/8 + cos 4θ/8

= 3/8 + cos 2θ/4 + cos 4θ/8

= [ 3 + 2cos 2θ + cos 4θ]/8.

Thus, the expression cos⁴ θ in terms of the first power of cosine is [ 3 + 2cos 2θ + cos 4θ]/8.

Learn more about reducing trigonometric powers at

brainly.com/question/15202536

#SPJ4

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2 years ago

You are on top of a 1200 ft building. As

katrin [286]

Answer:

I parked my car 120 feet from the building

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2 years ago

Correct notation? im lost someone help?

joja [24]

The correct notation for the $\sqrt{-100} -84$ is -84+10i.

Answer: Option B.

Step-by-step explanation:

A square root is the inverse function of exponential function.

Square root of positive numbers either result natural numbers or rational numbers.

But the square root of negative number is not possible. So that an imaginary number system was founded to represent the square root of negative number.

It is represented with i with the result of the solution of the square root.

Here the given problem is $\sqrt{-100} -84$ ,

-84 will remain the same and let us convert $\sqrt{-100}$ .

$\sqrt{-100}$ can be written as $\sqrt{100}$ × $\sqrt{-1}$ .

$\sqrt{100}$ = 10

$\sqrt{-1}$ = i.

∴ $\sqrt{-100}$ =10i.

The correct notation for the $\sqrt{-100} -84$ is -84+10i

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3 years ago

In a recent poll, 70% of people order

Anton [14]

Answer:

I'm not totally sure this is a VERY tricky question but I do know that 3 people did not say yes.

Step-by-step explanation:

Well if 70% of people said that they order toppings on pizza, then 30% don't order toppings. Therefore out of 10 people, 7 order toppings and 3 don't.

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2 years ago