The human body consist 1/10 hydrogen 16/25 oxygen 1/5 carbon

The same sentence can be spoken several different ways. True or False?

Tamiku [17]

TRUE. I don't know for other languages, but in English you surely can do that.

6 0

3 years ago

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Suppose that θ is an acute angle of a right triangle and that sec(θ)=52. Find cos(θ) and csc(θ).

insens350 [35]

Answer:

$\cos{\theta} = \dfrac{1}{52}$

$\csc{\theta} = \dfrac{52}{\sqrt{2703}}$

Step-by-step explanation:

To solve this question we're going to use trigonometric identities and good ol' Pythagoras theorem.

a) Firstly, sec(θ)=52. we're gonna convert this to cos(θ) using:

$\sec{\theta} = \dfrac{1}{\cos{\theta}}$

we can substitute the value of sec(θ) in this equation:

$52 = \dfrac{1}{\cos{\theta}}$

and solve for for cos(θ)

$\cos{\theta} = \dfrac{1}{52}$

side note: just to confirm we can find the value of θ and verify that is indeed an acute angle by $\theta = \arccos{\left(\dfrac{1}{52}\right)} = 88.8^\circ$

b) since right triangle is mentioned in the question. We can use:

$\cos{\theta} = \dfrac{\text{adj}}{\text{hyp}}$

we know the value of cos(θ)=1\52. and by comparing the two. we can say that:

length of the adjacent side = 1
length of the hypotenuse = 52

we can find the third side using the Pythagoras theorem.

$(\text{hyp})^2=(\text{adj})^2+(\text{opp})^2$

$(52)^2=(1)^2+(\text{opp})^2$

$\text{opp}=\sqrt{(52)^2-1}$

$\text{opp}=\sqrt{2703}$

length of the opposite side = √(2703) ≈ 51.9904

we can find the sin(θ) using this side:

$\sin{\theta} = \dfrac{\text{opp}}{\text{hyp}}$

$\sin{\theta} = \dfrac{\sqrt{2703}}{52}}$

and since $\csc{\theta} = \dfrac{1}{\sin{\theta}}$

$\csc{\theta} = \dfrac{52}{\sqrt{2703}}$

4 0

3 years ago

a square swimming pool has a cement sidewalk around it. The sidewalk is the same width all the way around. The outside perimeter

VLD [36.1K]

Answer:

175 square feet

Step-by-step explanation:

the area of the whole thing is 400 ft. (20 x 20=400)

i got the 20 from the perimeter b/c 20+20+20+20=80

then subtract the area of the pool from 400 to get 175.

6 0

2 years ago

Determine whether the relation describe c as a function of w.

Delicious77 [7]

Answer:

Function:

c = f(w) = 0.49, 0 < w ≤ 1

= 0.70, 1 < w ≤ 2

= 0.91, 2 < w ≤ 3

Step-by-step explanation:

Yes, the relation described can be interpreted as a function.

Here, c is the cost of a mail letter. c depends upon w, which is the weights of the mail letter.

As described in the question, the relation can be expressed as a function.

c can be expressed as a function of w in the following manner:

c(cost of mail) = f(w), where w is the independent variable and c is the dependent variable

c = f(w) = 0.49, 0 < w ≤ 1

= 0.70, 1 < w ≤ 2

= 0.91, 2 < w ≤ 3

where, c is in dollars and w is in ounces.

5 0

3 years ago

60 POINTS BRAINLIEST

Mariana [72]

60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

PLEASE HELP DUE TODAY!!60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

PLEASE HELP DUE TODAY!!60 POINTS BRAINLIEST

ANSWER QUESTIONS A B & C

PHOTO ATTACHED BELOW !!!!

A) Using the given spreadsheet as a basis, discuss the usefulness of a standard

deviation in a given dataset. You need to cite any literature sources you use.

B) Produce an appropriate fully-labeled chart to compare the gold, silver and

bronze medals totals of the 10 countries.

C) Use a suitable and fully-labeled chart to reflect the contribution of each

country to the overall medals total.

PLEASE HELP DUE TODAY!!

<h2>please mark me as brainliest </h2>

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my friend m......

5 0

3 years ago

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