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3 years ago

Evaluate: sin(30°)!! Also what’s cos(60°)??

Mathematics

2 answers:

Crazy boy [7]3 years ago

5 0

Answer:

sin(30°)=cos(60°)=½

Step-by-step explanation:

Sin(30°) and cos(60°) have the same value of √1/2 which gives ½

dolphi86 [110]3 years ago

3 0

Answer:

Both answers are 1/2

Step-by-step explanation:

i just got it right

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For all horizontal lines the domain is

AysviL [449]

Answer: All real numbers

Step-by-step explanation:

It depends on if the horizontal line goes on infinitely but I'd assume it does. It should be all real numbers.

5 0

3 years ago

kyle took at total of 8 quizzes in the first 4 weeks of school. How many weeks of school will he have to attend before he will h

Elden [556K]

Answer:

6 weeks

Step-by-step explanation:

8 quizzes = 4 weeks

So 2 quizzes/week

It will take her 12/2 weeks (6) to finish 12 quizzes

-Chetan K

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3 years ago

What is $35 marked up to 95%?

Assoli18 [71]

$68.25. the original price was $35, mark up 95%.
(100/100 + 95/100) x 35 = $68.25

7 0

3 years ago

What is the logarithmic form of the equation e5x ≈ 4768?

professor190 [17]

Answer: The answer is (c) ln 4768 = 5x.

Step-by-step explanation: The given equation is

$e^{5x}=4768.$

We are to find the logarithmic form of the above equation.

We will be using the following properties of logarithm :

$(i)~\ln a^b=b\ln a,\\\\(ii)~\ln e=1.$

The solution is as follows:

$e^{5x}=4768\\\\\Rightarrow \ln{e^{5x}}=\ln 4768\\\\\Rightarrow 5x\ln e=\ln 4768\\\\\Rightarrow 5x\times 1=\ln4768\\\\\Rightarrow 5x=4768.$

Thus, the correct option is (c).

8 0

3 years ago

Read 2 more answers

Jim would like to create a pencil holder with no top. He would like it to be 5 inches tall and 3 inches wide. He cannot decide i

maw [93]

Answer:

$\$11.13$

Step-by-step explanation:

step 1

Find the surface area of the cylinder

The surface area of the cylinder is equal to

$SA=\pi r^{2} +2\pi rh$

we have

$r=3/2=1.5\ in$ ----> the radius is half the diameter

$h=5\ in$

assume

$\pi =3.14$

substitute

$SA=(3.14)(1.5)^{2} +2(3.14)(1.5)(5)=54.165\ in^{2}$

<em>Find the cost</em>

$54.165*(0.75)=\$40.62$

step 2

Find the surface area of the square prism

The surface area of the prism is equal to

$SA=b^{2} +4bh$

we have

$b=3\ in\\ h=5\ in$

substitute

$SA=(3)^{2} +4(3)(5)=69\ in^{2}$

<em>Find the cost</em>

$69*(0.75)=\$51.75$

step 3

Find the difference of costs

$\$51.75-\$40.62=\$11.13$

5 0

4 years ago