The tip of a pendulum at rest sits at point B. During an experiment, a physics student sets the pendulum in motion. The tip of the pendulum swings back and forth along part of a circular path from point A to point C. During each swing the tip passes through point B. Identify all the angles in the diagram.​

Answer:

The answer is A.

Step-by-step explanation:

I pirnt the picture out and grabbed a ruler and started looking for the answer and If you look at A. with a ruler you can tell that it is a 45° angle.

Diagram of option(B) shows the construction of a 45° angle

The arc is a portion of the circumference of a circle

In diagram of option(B),

∵ The arc constructed between two perpendicular lines

Hence, the angle is 45°

Diagram of option(B) shows the construction of a 45° angle

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Solve

5x + 2x -6 = -2(x - 1)

7x - 6 = -2(x-1)

Distribute

7x - 6 = -2(x - 1)

7x - 6 = -2x + 2

Add 6 to each side

7x - 6 + 6 = -2x + 2 + 6

Simplify

7x = -2x + 8

x = 8/9

So your answer is B. I believe

5x + 2(x - 3) = -2(x - 1)

its 8/9

Answer:

y = 23x/7 +48/7

Step-by-step explanation:

perpendicular slopes are always equal to -1

so the new slope is 23/7

slope intercept form is y = mx + b where m is the slope and b is the                 y-intercept

so plug in (-3, -3 ) to get -3 = 23(-3)/7 + b

isolate b

solve

-3 = 23*-3/7 + b

-3 = -69/7 + b

add 69/7 to both sides

69/7 - 3 = b

-3 = -21/7

69/7 - 21/7 = 48/7

b = 48/7

new equation is y = 23/7 + 48/7

Answer:

[tex]-0.04b^{19}[/tex]

Step-by-step explanation:

We have the expression [tex](-0.2b^6)^3\times 5b[/tex] and we want to rewrite/simplify this to a monomial (only one term).

First, let's expand. We can use the power of a product exponent property, where [tex](ab)^x=a^xb^x[/tex]

We have:

[tex](-0.2b^6)^3\times 5b[/tex]

Using the above property, this will be:

[tex]=(-0.2)^3(b^6)^3\times5b[/tex]

(-0.2) cubed is -0.008. So, this becomes:

[tex]=-0.008(b^6)^3\times 5b[/tex]

We can now use the power of a power property, where [tex](x^a)^b=x^{ab}[/tex].

Therefore, this will give us:

[tex]=-0.008b^{6\times 3}\times 5b[/tex]

Evaluate:

[tex]=-0.008b^{18}\times 5b[/tex]

Notice that 5b is the same as 5 times b to the first power. So:

[tex]=-0.008\times b^{18}\times5\times b^1[/tex]

We can rearrange this to get:

[tex]=-0.008\times 5\times b^{18}\times b^1[/tex]

When we multiply exponents with the same base, we will simply add the exponents. -0.008 times 5 is -0.04. Therefore, this yields:

[tex]=-0.04b^{18+1}\\=-0.04b^{19}[/tex]

Therefore, our final answer is [tex]-0.04b^{19}[/tex].

And this is indeed a monomial since this only has one term.

Answer:

n=9

Step-by-step explanation:

add the exponents when the bases are the same

Answer:

i do not know

Step-by-step explanation:

Answer:

Simplify 6\div 36÷3 to 22.

10+4-210+4−2

2 Simplify 10+410+4 to 1414.

14-214−2

3 Simplify.

the answer is 12

Step-by-step explanation:

Answer:

ueidicjfkfktitorr*rtt

28

Answer:

A

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse h is equal to the sum of the squares on the other 2 sides, that is

h² = 20² + 20² = 400 + 400 = 800 ( take the square root of both sides )

h = [tex]\sqrt{800}[/tex] ≈ 28 in ( to the nearest whole number )

If it's just the 7 that's repeating, let

x = 0.1777...

Then

10x = 1.777...

100x = 17.777...

100x - 10x = 17.777... - 1.777...

90x = 16

x = 16/90 = 8/45

If both 1 and 7 are repeating, let

x = 0.171717...

Then

100x = 17.171717...

100x - x = 17.171717... - 0.171717...

99x = 17

x = 17/99

Answer:

2. z=8

3.2x=16

5.distributive property

7.Addition property of equality

i'm not 100%ly sure so if it's wrong sorry and pls don't report mine i'm just trying to help not get my answer deleted:)

Answer:

54 bales

Step-by-step explanation:

Answer:

54 Bales

Step-by-step explanation:

Subtract 22 from 76 to get 54

PEMDAS:

perenthesis, exponents, multiplication + division, addition and subtraction.

so you add first, to get 12+5=17.

then you multiply, to get 5*17 =85

Answer:

85

Step-by-step explanation:

PEMDAS:

First you do parenthesis so add the 12 and 5 together to get 17.

Now you are left with 5(17).

from there multiply to get your answer.

85

Answer:

d>3

Step-by-step explanation:

6d-10>8

add the 10 to both sides

6d>18

divide the 6 from both sides

d>3

Answer:

32

Step-by-step explanation:

Answer: alternate exterior

Step-by-step explanation:

Answer:

Inflation is the continuing reduction of the purchasing power or price level rise in a given time period.

Therefore, keeping money in a savings account that gives an interest rate that is lower than the inflation rate, in a period of high inflation will result in a reduction of the purchasing power of the amount of money plus interest in the savings account.

If the interest rate is 10%, the amount, A, in the account after a given time will be 1.1A

If the inflation rate is 15%, the value of the goods sold initially at A, will become 1.15A after the given period and the amount in the account will no longer be able to purchase the goods it was initially able to purchase, or the amount in the savings account will lose value

Step-by-step explanation:

In this exercise, we have to know some finances concepts in order to explain the problematized situation in this way we can say that:

Inflation exist the ongoing decline of the ability to purchase or price level rise fashionable a likely time period.

Explaining this concept of finance in a deeper way, we find that:

Inflation exist the ongoing decline of the purchasing power or price level rise fashionable a likely an age.

Therefore, consistency services in a account for saved money that gives an sum charged for use of money that is to say inferior the swelling rate, in a period of extreme swelling will influence a decline of the ability to purchase of the amount of services plus interest in the account for saved money.

If the sum charged for use of money exist 10%, the amount, A, fashionable the or charges after a likely opportunity will exist 1.1A

If the swelling rate exist 15%, the value of ability sold out at first at A, will evolve into 1.15A following in position or time the given extent of time and the amount fashionable the or charges will not any more within financial means purchase the goods it exist at first able to perform well to purchase, or the amount fashionable the account for saved money will lose value

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Answer:

whats the question

Step-by-step explanation:

what's the question??

Answer:

All I know is that the first picture is 8

Step-by-step explanation:

I know because one times eight is eight so um yeah

Answer:

  2) V = 2000·1.07^t; $6317.63 after 17 years

  3) D = 950·0.82^t; 2 months to a balance of $650

Step-by-step explanation:

Exponential equations are not so difficult. They are generally of the form ...

  f(t) = (initial value) × (growth factor)^t

where t is the number of time periods to which growth factor applies. (I problem 2, that is years; in problem 3, that is months.)

The growth factor can be written different ways. In terms of growth rate, it is ...

  growth factor = 1 + growth rate

Often, the growth rate is expressed as a percentage. It may be positive or negative.

__

2) The initial value is $2000, and the growth rate is 7% = 0.07. So, the exponential equation for value is ...

  V = 2000·1.07^t

The value after 17 years is ...

  V = 2000·1.07^17 = 6317.63

__

3) The initial value is $950, and the growth rate is -18% = -0.18. That means the growth factor is 1-0.18 = 0.82. So, the exponential equation for the remaining debt is ...

  D = 950·0.82^t . . . . . where t is in months

We want to find the value of t when D=650, so we put that in the equation and solve for t. Logarithms are required.

  650 = 950·0.82^t

  650/950 = 0.82^t . . . . . . . . . . divide by 950

  log(650/950) = t·log(0.82) . . . take logarithms

  log(650/950)/log(0.82) = t ≈ 1.91

It will take about 2 months for the balance to be about $650.

Answer:

x=36

Step-by-step explanation:

the triangle is a right angle triangle divided into 2 at the angle representing 90°. Since the second triangle has two equal sides the angles therefore are also equal, hence

180°-72°=108°

then 108°÷2=54°. ( we divided because the angles are equal.

x=180°-90°-54°

x=36°

Answer:

24x

Step-by-step explanation:

hope this helps

Answer:

Maximum: 74

Minimum: 70

Step-by-step explanation:

l s - 72 l = 2

s - 72 = 2

s = 74

s - 72 = -2

s = 70

The maximum score will be 74 and the minimum score will be 70.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Leona was in a golf tournament last week. All of her rounds of gold were within 2 strokes of par and par was 72.

The value of the maximum and minimum scores will be calculated as below:-

Maximum score:-

l s - 72 l = 2

s - 72 = 2

s = 74

Minimum score:-

s - 72 = -2

s = 70

Therefore, the maximum score will be 74 and the minimum score will be 70.

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Answer:2 pi

Step-by-step explanation: The reason I know this is because I plugged into a graphing calculator and took the unit test.

At value D.2pi  the graph of y=4 cot^-1(2x) intersect the y-axis.

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

Here, given that,

y=4 cot^-1(2x)

we have to find the value at it  intersect the y-axis.

y-axis means x=0.

So, here the value is D.2pi.

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Depends on what kind of expression you are talking about, A mathematical expression, or a normal expression.

___________________________________________________________

Mathematical

When you combine numbers and variables using operations such as addition, subtraction, multiplication, division, exponentiation, and other operations.

___________________________________________________________

Normal

A look on someone's face or a word or phase.

___________________________________________________________

I hope that i helped!

May i have brainliest?

[tex]\huge\boxed{Thanks,\;Plip.}[/tex]

Answer:

y = 15

Step-by-step explanation:

You can use the addition property of equality.

1) time 3 to +3 and 5

3 x /3 = 0

3 x 5 = 15

2) Now, we are left with y = 15

Therefore, y = 15

Hope this helps! :D

Answer:

y=6x-5

Step-by-step explanation:

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

Finding the slope:

Use this...

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

Plug in what you know...

[tex]y_{2} =-5\\y_{1}=7\\x_{2} =0\\x_{1}=2[/tex]

Now solve...

[tex]\frac{-5-7}{0-2}=\frac{-12}{-2} =6[/tex]

So the slope is 6.

Finding the y-intercept:

Use this...

[tex]y=mx+b[/tex]

Plug in what you know...

(2,7)    (I'll be using this pair but you can choose the other one)

[tex]y = 7\\x = 2\\m = 6[/tex]

Now solve...

[tex]7=6(2)+b\\7=12+b\\b=-5[/tex]

Writing the equation:

Use this...

[tex]y=mx+b[/tex]

Plug in what you know...

[tex]m=6\\b=-5[/tex]

Now write it out...

[tex]y=6x-5[/tex]

That's it