PLEASE HELP WILL GIVE BRAINLEST!

PLEASE HELP WILL GIVE BRAINLEST!

Answers

Answer 1

Answer:

pi/2

Step-by-step explanation:

We know that,

Length of arc=r*(theta) where r=radius and theta is angle

Given- unit circle, it means  circle have raduis=1

       Theta=90° or (pi/2)

Hence,

Length of arc is = 1*(pi/2)

                            = pi/2

Hence option two is correct


Related Questions

label the quadrants IV​

Answers

Answer:

Quadrant IV is always in the bottom right corner.

What happens to warm air when it cools?

A) It sinks back down to Earth.
B) It is absorbed into clouds.
C) It remains in Earth’s upper atmosphere.
D) It breaks apart and disappears.

Answers

Answer:

b

Step-by-step explanation:

hj

Answer:Its B,dude

Step-by-step explanation:

Which of the following BEST describes how to use the addition property of equality to isolate the variable y
below?
y-12 = 14
A. add 12 to the left side of the equation only
B. subtract 12 from the left side of the equation only
C. add 12 to both sides of the equation
D. subtract 12 from both sides of the equation
Please select the best answer from the choices provided
Ο Α
ОВ
С

Answers

Answer:  C) add 12 to both sides

Reason:

We add 12 to the left side to undo the -12, which will get y by itself.

We must do the same thing to both sides to keep things balanced.

Given the system below:
f(x) = 2x
g(x) = 2x
Which value(s) of x make f(x) = g(x) a true statement? If necessary, you may choose more than one
answer.
1
4
3
2
9
0

Answers

All real numbers

1. f(x) = 2x

2. g(x) = 2x

Substitute g(x) to the 2x in the first statement.

You'll get: f(x) = g(x)

Therefore, x ∈ all real numbers (any value of x would make it a true statement)

Please help me
Which equation has the same solutions as x²+6x-7=0 ?
A) (x+3)²=2
B) (x-3)²=2
C) (x-3)²=16
D) (x+3)²=16

Answers

Answer:

[tex]D)~(x+3)^2 = 16[/tex]

Step-by-step explanation:

[tex]~~~~~~x^2 +6x -7 = 0\\\\\implies x^2+6x = 7\\\\\implies x^2 +2 \cdot 3 \cdot x +3^2 -3^2 = 7\\\\\implies x^2 +2 \cdot 3 \cdot x+3^2 = 7+3^2\\\\\implies (x+3)^2 = 7+9\\\\\implies (x+3)^2 = 16[/tex]

please do all of number 2 please help (find the angle measurements that are not given

Answers

The measures of the missing angles are as follows:

a. 145°

b. 43°

c. 36°, 36° and 144°

How to find angles when lines intersect?

When two lines intersect, angle relationship can be formed. The angles can be adjacent angles, vertical angles and many more.

Therefore,

a. 180 - 35 = 145 degrees( angle on a straight line)

b. 180- 47 - 90 = 43 degrees(angles on a straight line)

c. 144 degrees (vertical angles), 36 degrees and 36 degrees(angles on a point is 36 degrees)

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What does this graph show
inverse
direct
neither​

Answers

Answer:

i think the given graph is inverse

What ordered pair is a solution to
{2y=4x-10}
{-y=4x-1}

Answers

Answer: (1, -3) => x = 1, y = -3

Step-by-Step Explanation:

Lets solve using Elimination Method :-

2y = 4x - 10
-4x = -10 - 2y
=> -4x + 2y = -10 (Eq. 1)

-y = 4x - 1
-4x = -1 + y
=> -4x - y = -1 (Eq. 2)

Subtracting Eq. 2 from Eq. 1 :-

=> 0 + 3y = -9
3y = -9
=> y = -9/3 = -3

Therefore, y = -3

Substitute value of ‘y’ in Eq. 2 :-

-4x - y = -1
-4x -(-3) = -1
-4x + 3 = -1
-4x = -1 - 3
-4x = -4
4x = 4
=> x = 4/4 = 1

Therefore, x = 1

Hence the ordered pair (1,-3) is the Solution to this System of Equations.

Tara made a scale drawing of a boarding school. she used the scale 1 centimeter : 7 meters. a building at the school is 12 centimeters long in the drawing. how long is the actual building?

Answers

Answer:

84cm

Step-by-step explanation:

Given that;

1cm = 7m

12cm = x

Cross Multiply

x = 12×7

x = 84m

What two operations would you use to solve the equation 5x - 8=-18

-multiplication
-division
-addition
-subtraction

Answers

Answer:

subtraction

Step-by-step explanation:

5x-8+8=-18+8

5x=-10

5x/5=-10/5

x=-2

Answer:

addition and division

Step-by-step explanation:

5x - 8 = - 18 ( add 8 to both sides )

5x = - 10 ( divide both sides by 5 )

x = [tex]\frac{-10}{5}[/tex] = - 2


Mason has a business selling perfume at the mall. Currently his business has a
balance of -$20.
Which amounts of sales would give Mason's business a positive balance?
Choose ALL that apply.
$15 $35 $21 $29 $30 $19

Answers

Answer:

21, 29, 30, 35

Step-by-step explanation:

anything greater than 20 would break even and then give a position balance

You would choose all of the answers that are over $20 since Mason has a negative balance you would need to cancel that out. If he earned $20 he would have balance if 0, so he needs to earn more to get a positive balance.

A certain species of bird is in danger of becoming extinct. There were 1500 birds in 2000 and they are
decreasing at an annual rate of 6.5%.
a) If this trend continues, how many birds will be left by 2010?
b) How many birds would there have been in 1990?

Answers

a) If this trend continues, how many birds will be left by 2010 will be 525

b) The  birds would there have been in 1990 will be 2475

What is rate of increase?

Rate of increase or decrease is defined as the increment or decrement in any quantity over a period of time constantly.

Here we have the data that:

There were 1500 birds in 2000 and they are decreasing at an annual rate of 6.5%.

a) If this trend continues, how many birds will be left by 2010

{1500x6.25}/{100}=97.5

So the bird decrement in the one year will be =97.5 so it will be in the 10 years or upto 2010 will be

97.5x10=975

So the birds left till 2010 will be:

Q=1500-975=525

b)The birds would there have been in 1990 will be:-

=1500+975=2475

Hence If this trend continues, how many birds will be left by 2010 will be 525.The  birds would there have been in 1990 will be 2475

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Given the equations and the graph below, how many solutions are there to the system of equations?
Explain your answer.

Answers

Answer:

One, since the lines are not parallel (you can tell by either the graph, or the coefficient of the x term, called "slope", and it's (3;4)

whats 55 + 55? I've been struggling and I can't take it anymore. I saw the memes and I need the real absolute final answer. pls help

Answers

Answer:

110

50+50=100

5+5=10

100+10=110

(thats how i do mental math)

Simplify the expression (4x2y3)2

Answers

Answer:

8x^2 2y^3

Step-by-step explanation:

This is the answer of (4x2y3)2

discuss why area: perimeter for a square ÷ 4.​

Answers

Step-by-step explanation:

because its formula is 4L

A traveler pulls a suitcase, as shown in the figure.

The force acting on the handle is 30 N at an angle of θ = 40°. How much work is done if the traveler moves 120 meters? Round to the nearest whole number.

2,314 Nm
2,758 Nm
3,085 Nm
4,156 Nm

&

A cart weighing 180 pounds rests on an incline at an angle of 35°. What is the required force to keep the cart at rest? Round to the thousandths place.

77.073 pounds
103.244 pounds
147.447 pounds
162.665 pounds

Answers

Answer:

2758 Nm

Step-by-step explanation

Work done usually depends on two things force applied and distance travelled due to applied force. In this current scenario, the force is being applied at an angle so we will have to find a component of force in the direction of the movement.

We usually find component using cos θ.

Here θ is 40°

Now, the modified equation becomes,

Work Done = Force * Distance * Component of force along the direction of distance

∴ Work = 30 N * 120 m * Cos 40°

⇒Work = 30 * 120 * 0.766

Work = 2757.6 Nm

Rounding to the nearest whole number.

∴ The work done by force is 2758 Nm which is option B

The amount of work done will be 2758 Nm. Then the correct option is B. And the required force to keep the cart at rest will be 147.447 pounds. Then the correct option is C.

What is work done?

The product of the force and displacement.

WD = F × d × cos θ

A traveler pulls a suitcase, as shown in the figure.

The force acting on the handle is 30 N at an angle of θ = 40°.

Then the amount of work done if the traveler moves 120 meters will be

WD = 30 × 120 × cos 40°

WD = 30 × 120 × 0.766

WD = 2758 Nm

Then the correct option is B.

A cart weighing 180 pounds rests on an incline at an angle of 35°.

The required force to keep the cart at rest will be

Fₓ = F × cos θ

Fₓ = 180 × cos 35°

Fₓ = 147.447 pounds

Then the correct option is C.

More about the work done link is given below.

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I was confused on how to write the quadratic in standard form

Answers

Answer:

3x² + 4x + 8 = 0

Step-by-step explanation:

Standard form of quadratic equation is

ax²+bx+c=0

standard form of quadratic equation 3x²+4x+7=-1 is

3x² + 4x + 7 = -1

3x² + 4x + 7 + 1 = 0

3x² + 4x + 8 = 0

In the previous task you saw that the number of
moves to solve the Tower of Hanoi with n disks
given by the equation an -2-1.
What is the fewest number of moves required for
7 disks?
13
64
J
127
128
COMPLETE


ANSWER:127

Answers

Using the given equation, it is found that the fewest number of moves required for 7 disks is of 127.

What is the fewest number of moves needed with n disks?

It is given by the following equation:

[tex]a_n = 2^n - 1[/tex]

In this problem, we have 7 disks, hence the fewest number of moves needed is given by:

[tex]a_7 = 2^7 - 1 = 127[/tex]

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Answer:

127

Step-by-step explanation:

If cost of 15 eggs is Rs. 75, then find out the cost of 4 dozens eggs.
a.₹ 185
b.₹ 150
c.₹ 300
d.₹ 240

Answers

Answer:

The answer is d 240. You will first find how much 1 egg costs then times 12 times 4 equal to 48 times how much 1 egg Costs equal to 240

Help? It’s for scantron and I have to exempt

Answers

Answer:

A. Red/Line C

Step-by-step explanation:

Jim works as a manager at a local supermarket in dallas. jim worked 36 hours and his paycheck for this week was $1,620.51. how much does jim make per hour? round your answer to the nearest cent.

Answers

324

Step-by-step explanation:

roughly about that much

What are the ratio of the perimeters and the ratio of the areas?

Answers

Check the picture below.

the ratio of the sides will be the same ratio of their perimeters

[tex]\stackrel{\textit{\LARGE ratio of their}}{\stackrel{perimeters}{\cfrac{6}{15}\implies \cfrac{2}{5}}\hspace{5em}\stackrel{areas}{\cfrac{2^2}{5^2}\implies \cfrac{4}{25}}}[/tex]

Find the minimum value of
\[\frac{x^2 + 9}{x}\]for $x > 0.$

I tried this but I didn't get it, could someone explain?

Answers

I hope this will help you a lot

9. Use the​ compound-interest formula to find the account balance​ A, where P is​ principal, r is interest​ rate, n is number of compounding periods per​ year, t is​ time, in​ years, and A is account balance.

Answers

Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. The account balance after a period of 5 years will be $1.63634×10²⁰.

What is compound interest?

Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. It's the outcome of reinvesting interest rather than paying it out so that interest is received on the principal plus previously collected interest in the next quarter.

[tex]A = P(1 + \frac{r}{n})^{nt}[/tex]

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

Given the principal amount is $12,385, the rate of interest is 7.5%, and the time period is daily. Therefore, the amount can be written as,

[tex]A = P(1 + \frac{r}{n})^{nt}\\\\A = \$12,385(1 + \frac{7.5}{365})^{(365 \times 5)}\\\\A = \$1.63634 \times 10^{20}[/tex]

Hence, the account balance after a period of 5 years will be $1.63634×10²⁰.

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A line passes through the points (-4,3) and (0, 0). What is the slope of the line?

Answers

Answer:

-3/4

Step-by-step explanation:

ΔY / ΔX, or change in y divided by change in x
(-4,3) and (0, 0)
x increases by 4
y decreases by 3
-3/4

Answer:

It is -3/4

Step-by-step explanation:

Convert the improper fraction to a mixed number 17/3​

Answers

Answer:

5 and 2/3

Step-by-step explanation:

17/3 = 17 - 3 = 14

1

14 - 3 = 11

2

11 - 3 = 8

3

8 - 3 = 5

4

5 - 3 = 2

5

So it’s 5 2/3

Is 3/10 equivalent to 12/20 or 5/20?

Answers

Answer:

Neither?

Step-by-step explanation:

3/10 = 0.3

12/20 = 0.6

5/20 = 0.25

I would say that its up to you what you want to put.

Sorry if it doesn't help.

Yo anyone from United States I gotta question

Answers

what's your question question question

I'll give brainiest to the first person to respond BUT only if the answer is correct

Answers

Answer:

115 and 1/2

Step-by-step explanation:

B•W•H

Hope this helps! ;-)

Thanks for correcting my mistake!!!

Answer:  The answer is 115 1/2

Explanation: Just multiply all the dimensions

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