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2 years ago

Find the exact value without a calculator. Tan 7pi/12=sin7pi/6/2 /cos7pi/6/2

Mathematics

2 answers:

lara31 [8.8K]2 years ago

6 0

Answer:

458

Step-by-step explanation:

notsponge [240]2 years ago

6 0

Answer:

2+3

Step-by-step explanation:

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What is translation with 5 units right and 1 up

Leviafan [203]

Since you did not provide the coordinates, I can't provide an exact answer.
However, I can tell you this; from the initial x-coordinate, move right 5 units. from the initial-y coordinate, move up 1 unit and you will have your answer.

4 0

3 years ago

The perimeter of a rectangular field is 60ft and its width is 20ft find the area of this field

Gennadij [26K]

Perimeter of rectangle = 2( length +width)

given: Perimeter=60 ft and width=20 ft

plugging these values in the formula,

60=2(20+ length)

dividing both sides by 2

30=20+length

length =30-20=10

length is 10 feet

width is 20 feet

Area of rectangle is given by:

Area = l*w

Area = 10 *20 = 200 square feet

Answer : Area of rectangle is 200 square feet.

4 0

3 years ago

Read 2 more answers

The time it takes a student to walk from the dorm to the chemistry lab follows roughly a Normaldistribution with a mean of 20 mi

creativ13 [48]

Answer:

95.15%

Step-by-step explanation:

We have that the mean (m) is equal to 20, the standard deviation (sd) 3

They ask us for P (x <25)

For this, the first thing is to calculate z, which is given by the following equation:

z = (x - m) / sd

We have all these values, replacing we have:

z = (25 - 20) / (3)

z = 1.66

With the normal distribution table (attached), we have that at that value, the probability is:

P (z <1.66) = 0.9515

Which means that the probability that it arrives before 25 minutes is 95.15%

6 0

3 years ago

For the graphed function f(x) = -(5)* - 3 + 2, calculate the average rate of change from x = 3 to x = 4.

Ilia_Sergeevich [38]

Answer:

-4

Step-by-step explanation:

The average rate of change from x=a to x=b of f(x) is $\frac{f(b)-f(a)}{b-a}$

The given function is $f(x)=-5^{x-3}+2$ .

$f(4)=-5^{4-3}+2=-3$ .

$f(4)=-5^{3-3}+2=1$ .

The average rate of change from x=3 to x=4 is given by:

$\frac{f(4)-f(3)}{4-3}$

$\frac{-3-1}{4-3}=-4$

7 0

2 years ago

How can I find the volume of a cone 9 radius and 18 height

Anastasy [175]

Answer:

V = 486 $\pi$ , or approx. 1,526.814

Step-by-step explanation:

V = $\pi$ *r²*(h/3)

plug in the numbers: V = $\pi$ * (9)² * (18/3)

simplify: V = $\pi$ * 81 * 6

simplify: V = 486 $\pi$ , or approx. 1,526.814

6 0

2 years ago

Read 2 more answers