What is the value of sin-1(cos(2pi/3))?

Answer:

First part:

Set h(t) = 73 and solve for t.

-16t2 + 64t + 16 = 73

-16t2 + 64t - 57 = 0

Solve this quadratic equation for t.  You should get 2 positive solutions.  The lower value is the time to reach 73 on the way up, and the higher value is the time to reach 73 again, on the way down.

Second part:

Set h(t) = 0 and solve the resulting quadratic equation for t.  You should get a negative solution (which you can discard), and a positive solution.  The latter is your answer.

Step-by-step explanation:

Answer:

[tex]20 - 3x = - 3( x - 8) \\ 20 - 3x = - 3x + 24 \\ - 3x + 3x = 24 - 20 \\ 0 = 4[/tex]

It does not have any answer.

Answer: The required length of each piece of wood is  or 9 inches.

Step-by-step explanation:  Given that a piece of lumber is  feet long is to be cut into 3 equal pieces.

We are to find the length of each piece of wood in feet and in inches.

We will be using the UNITARY method to solve the given problem.

The length of 3 pieces of wood is equal to  

Therefore, the length of each piece of wood will be

Thus, the required length of each piece of wood is  or 9 inches.

Answer: 6.63324958 i    

Answer 2: 2i√11

Answer:

14 depth per minute

Step-by-step explanation:

84/6 = 14

Answer:

A and D.

Step-by-step explanation:

A sequence is a set of the objects or numbers in a specific order. It is a function whose domain is a set of natural numbers or non-negative integers i.e. {1, 2, 3,..}

(A)

"An arithmetic sequence is a linear function whose domain is restricted to the set of non-negative integers."

The general form an arithmetic sequence is:

[tex]a_{n}=a_{1}+(n-1)d[/tex]

The function is linear. The sequence consists of either numbers that are increasing or decreasing based on the value of d, the common difference.

So, the statement provided is True.

(D)

"A geometric sequence is an exponential function whose domain is restricted to the set of non-negative integers."

The general form an geometric sequence is:

[tex]a_{n}=a_{1}\cdot r^{n-1}[/tex]

The function is exponential. The sequence consists of either numbers that are exponentially increasing or decreasing by the factor r, the common ratio.

So, the statement provided is True.

Answer:

The side lengths of the image after the dilation = 13.5 cm and 20.25cm

Step-by-step explanation:

A rectangle has side lengths 6 cm and 9 cm. What would the side lengths of the image be after a dilation of 2.25? Explain your reasoning.

Dilation can also be referred to as scale factor

6cm × 2.25 = 13.5 cm

9 cm × 2.25 = 20.25 cm

The side lengths of the image after the dilation = 13.5 cm and 20.25cm

Answer:

mode

Step-by-step explanation:

in statistics, the mode is the most commonly observed value in a set.

Answer:

Mode

Step-by-step explanation:

Mode is the value that is shown most frequently in a set.

Step-by-step explanation:

equation of the line passing through two points

x-x1/x2-x1=y-y1/y2-y1

x-(-8)/1-(-8)=y-2/9-2

x+8/9=y-2/7

7x+56=9y-18

9y=7x+56+18

y=7/9x+74/9

y=mx+b m is the slope

so m=7/9

there is a short way showing slope shown in the picture

Answer:

3

Step-by-step explanation:

You just divide 27 by 3, then divide that answer by 3, and keep doing that until you get to 1:

27/3

9

9/3

3

3/3

1

3^x = 27

3^3 = 27

3 x 3 x 3 = 27

9 x 3 = 27

27 =27

Answer:

We calculate the amount of gas used per km and multiply it by 286

Step-by-step explanation:

If we drive for 260km and use 12 litres of gas that means that we use

[tex]\frac{12}{260}[/tex] litres per km.

Now we multiply it by 286:

[tex]\frac{12}{260} *286 = \frac{858}{65} = 13.2[/tex]

So, the answer is 13.2 litres.

Answer:

Okay so you mean one then 1/5 a fraction times 3/5 if so that means that

Exact Form: 18/25

Decimal Form: 0.72

18/25 is the simplest form by the way

Welcome!

Answer:

the answer is A hope it helps: )

Answer:

A

Step-by-step explanation:

I had this question on a practice test, it's correct.

Answer:

3x²-1

Step-by-step explanation:

f(x) = x²

g(x) = 3x-1

[g·f](x)

g(f(x))

3(x²)-1

Answer:

B. "at the mall"

Step-by-step explanation:

EDU 2020

Answer:b

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

5-9=(-4)

hope this helps :3

Answer:

Can i get a brainliest please? :·3

Step-by-step explanation:

I wasn't here on time

PD: anyone play clash of clans?

PPD: join my clan if you do

PPPD: Link: https://link.clashofclans.com/en?action=OpenClanProfile&tag=2L9YRJYQC

PPPPD: We speak spanish and english

Answer:

2x^2-x-1 = (2x+1)(x-1)

Answer:

(2x+1)(x−1)

Step-by-step explanation:

I hope it is right

Answer: I believe the answer would be 1/9 ?

∠CAB and the angle above it whose measure is 84° are vertically opposite angles , which means their measure will be equal .

By the definition of vertically opposite angle, Measure of an angle CAB is, 84°.

Parallel lines are those lines that are equidistance from each other and never intersect each other.

We know that;

The vertically opposite angles are equal to each other.

Here, ∠CAB and the angle above it whose measure is 84° are vertically opposite angles.

Hence, Measure of ∠CAB = 84°

Learn more about the parallel line visit:

brainly.com/question/30195834

#SPJ2

Answer:

[tex]m=-\frac{4}{3}[/tex]

Step-by-step explanation:

Formula

[tex]m=\frac{rise}{run}=\frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

Solve

[tex]m=\frac{10+6}{-14+5}=\frac{16}{-9}=-\frac{4}{3}[/tex]

Answer:

Step-by-step explanation:

A=(-5, -6) = (x1 , y1)

B= (-14, 10)= (x2 , y2)

slope= y2 - y1/ x2- x1

=10+6/ -14+5

= 16/ -9

= 4 / -3

Answer: For the first one its J

The second one its H

Step-by-step explanation:

Answer:

Step-by-step explanation:

Response Variable: Miles per gallon

Predictor Variables: Weight, Horsepower

The multiple regression equation would be: M = aW + bH + c

where M = miles per gallon

a = slope of the graph of W on M OR rate of change in M due to change in W

W = weight

b = slope of the graph of H on M OR rate of change in M due to change in H

H = horsepower

c = intercept of M on the y-axis OR constant variable

How might the car rental company use this model?

The car rental company might use the regression model to determine the following:

- Effect of weight (of car) on miles run per gallon (of premium motor spirit)

- Effect of horsepower on miles per gallon; etc.

Answer:

-3-,2,-1,0,1,2,3,4,5

Step-by-step explanation:

-4<n<6

Answer:

1 day = 86400 seconds

565900 divided by 86400 =

Step-by-step explanation:

a little more than 6 days

plz mark brainliest

Answer:

screeeeeeeeeeredc vbggrewdsc

Step-by-step explanation:cdscx de2wqsax

wewdsnswercwdsx

==================================

Work Shown:

P(E or F) = P(E) + P(F) - P(E and F)

0.55 = 0.40 + P(F) - 0.20

0.55 = P(F) + 0.20

P(F) + 0.20 = 0.55

P(F) = 0.55 - 0.20

P(F) = 0.35

---------

note: Sometimes you may see the formula as

P(E and F) = P(E) + P(F) - P(E or F)

but it's an equivalent form to the first equation above.

Answer:

5 is equal to 50000 and 5 is equal to 5

Step-by-step explanation:

Answer:

Money raised by each team = 94 + 11 = $105

Number of cars washed = 11

Step-by-step explanation:

Money already present with volleyball team = $50

Money raised by washing each car by volleyball team = $5

Let the number of cars washed = [tex]x[/tex]

Money raised by washing cars = $5[tex]x[/tex]

Money already present with volleyball team = $94

Money raised by washing each car by volleyball team = $1

Money raised by washing cars = $1[tex]x[/tex] = $[tex]x[/tex]

Given that, both the teams have raised same amount of money:

[tex]50+5x=94+x\\\Rightarrow 44=4x\\\Rightarrow x=11[/tex]

Money raised by each team = 94 + 11 = $105

Number of cars washed = 11

That would be Q my dude.

Hope this helps

Answer:

b²=√(2c/a)

Step-by-step explanation:

c=1/2ab²

1/2ab²=c

ab²=2c

b²=2c/a

b²=√(2c/a)

Answer:

But....

Area of triangle = 1/2 × base / height.

FOLLOW ME

Answer:

area = base * height divided by 2

Step-by-step explanation:

A triangle is basically half a square, so you divide it by 2 after you multiply the base and height