Select the correct answer from the drop-down menu
23
Central angle BAC of circle A measures 20" radians. Arc BC has a length of 63.487 centimeters. What is the radius of the circle?
The radius of circle A is ✓ centimeters.

Select The Correct Answer From The Drop-down Menu23Central Angle BAC Of Circle A Measures 20" Radians.

Answers

Answer 1

Answer:

r = 55.2 cm

Step-by-step explanation:

the arc length is calculated as

arc = circumference × fraction of circle

     = 2πr × [tex]\frac{\frac{23}{20}\pi }{2\pi }[/tex] ( r is the radius )

given arc = 63.48π , then

2πr × [tex]\frac{\frac{23}{20}\pi }{2\pi }[/tex] = 63.48π ( cancel 2π on numerator/ denominator )

r × [tex]\frac{23}{20}[/tex] π = 63.48π ( divide both sides by π )

[tex]\frac{23r}{20}[/tex] = 63.48 ( multiply both sides by 20 to clear the fraction )

23r = 1269.6 ( divide both sides by 23 )

r = 55.2 cm

Answer 2

Answer: 55.2

Step-by-step explanation:

got it correct on my test!


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Answer:

4 am for me you probably live somewhere in america though

6-3x=5x-10x+20. What is the value of x?

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Answer:

X=2

Step-by-step explanation:

Because it that is the answer

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Terry calculates how much wood he needs to build the desk shown in the diagram . He says the area is 600ft2

What error did terry make

Find the correct area and explain your answer

Answers

the correct area is 3600ft2

Answer:

He forgot to multiply by 1/2 when finding the area of the above triangle.

Now we find the correct area;

A = BH x 1/2 (formula for finding area of triangle)

A = 10 x 24 x 1/2

A = 240 x 1/2

A = 240/2

A = 120

Now the rectangle's formula which is just (W x L) where "w" is the width and "l" is the length;

A = W x L

A = 24 x 15

A = 360

Now we add both the sums of the two areas:

120 + 360 = 480 square feet, the information provided here is your explanation.

William writes a function
f(x)=−2x−10
. He uses an input-output table to represent the function.



What is the output of William’s function when the input is
−6?

Answers

Answer:

2

Step-by-step explanation:

f(-6) = -2(-6) - 10

f(-6) = 12 - 10

f(-6) = 2

Melissa practiceted piano for 5/6 of an hour. On Monday and 8/9 of an hour on Tuesday. How many more minutes did she practice on Tuesday compared to monday

Answers

Answer:

24 hrs

Step-by-step explanation:

99594iu58

The number of minutes that she practiced on Tuesday compared to Monday will be 103 minutes.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

Melissa practiced piano for 5/6 of an hour on Monday and 8/9 of an hour on Tuesday.

The number of minutes that she practiced on Tuesday compared to Monday will be

⇒ (5/6) + (8/9)

⇒ 31/18

⇒ 103 minutes

The number of minutes that she practiced on Tuesday compared to Monday will be 103 minutes.

More about the Algebra link is given below.

https://brainly.com/question/953809

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Mary sells fruit with four of her friends If the earnings are divided evenly how much must the business make in order for each person to earn 30?

Answers

In a case whereby Mary sells fruit with four of her friends If the earnings are divided evenly the amount they must  make in order for each person to earn 30 is 150.

How can the earningbe calculated?

Since 4 of them wereinto the business aimimg to share the profit in erqual amount then the  business should make [30*(1+4) ]= (30*5 )= 150 dollars total earnings.

Therefore, If the profits from selling fruit with Mary's four friends are divided equally, they will need to make 150 in order for each individual to make $30.

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Answer:

150

Step-by-step explanation:

You have to find the total number of fruits so multiply 30 by 4. However, Mary is included too so add another 30

For one particular homeroom, the typical ratio of students absent to students present is 1 : 14. One day, students from this same homeroom miss school to compete in a math competition. On that day, there are 22 students in class and the ratio of students absent to students present is 4 : 11. How many students are absent on a typical day for this homeroom?

Answers

Answer:

i THINK 43% but im not for sure

Step-by-step explanation:

14% of 50 is 7

so 50-7=43

43(percent there)+7(percent gone)=50 (number of students)

SO 43% is still there.

i hope this work for you

and SORRY if im wrong

Identify the exponent and the base in the expression 6^12

Answers

Given parameters:

   Expression;

                        6¹²

Identify the exponent and the base in the expression;

                         6¹²

An exponent is a power to which a number or variable is raised.

Generally, it signifies the number of times a number should be repeatedly multiplied.

The base is the number that is being multiplied.

So, in this problem, exponent is 12 and base is 6.

Krystal Ball's pulse rate is 30% higher than its normal rate of 70bpm. What is her pulse rate? After
lying down it decreased 20%. What is her heart rate now?

Answers

Answer:  

Starting bpm = 91

Resting bpm = 72.8

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

Explanation:

A 30% increase is represented by the multiplier 1.30 because

100% + 30% = 1.00 + 0.30 = 1.30

So Krystal's initial heart rate is 1.30*70 = 91 bpm.

If you wanted, you can think of it like this

30% of 70 = 0.30*70 = 21 is added onto the initial 70 bpm to get 70+21 = 91 bpm.

-----------

To decrease by 20%, we use the multiplier 0.80 since

100% - 20% = 1.00 - 0.20 = 0.80

Losing 20% of something means we keep the remaining 80%

So,

80% of 91 = 0.80*91 = 72.8 bpm.

-----------

Here's one way to find the final bpm in one single line

1.30*0.80*70 = 72.8

in which you could write it like this

(1 + 0.30)*(1 - 0.20)*(70) = 72.8

The second way may be a bit longer, but I find it's more descriptive to see where the percentage increases vs percentage decreases are.

please help me find mo

Answers

Answer:

  MO = 25

Step-by-step explanation:

Point O between parallel lines PQ and MN divides segment PM in the same proportion that it divides segment QN.

  MO/OP = NO/OQ

  MO/20 = 20/16 . . . . . . use the given numbers

  MO = 20(20/16) . . . . . multiply by 20

  MO = 25

When solving an ______, use inverse operations to undo the operations.

Answers

Answer:

equation

Step-by-step explanation:

Inverse operations are used to solve simple algebraic equations to more difficult equations that involve exponents, logarithms, and trigonometry. Mathematically, inverse operations are opposite operations. Addition is the opposite of subtraction; division is the opposite of multiplication, and so on.

[RevyBreeze]

Answer:

equation

Step-by-step explanation:

To isolate the variable, we must reverse the operations acting on the variable. We do this by performing the inverse of each operation on both sides of the equation. Performing the same operation on both sides of an equation does not change the validity of the equation, or the value of the variable that satisfies it.

Find the distance from point L to point M, if the point L has coordinates (-10,-9)

and the point M has coordinates (-2,6).

Answers

Answer:

The distance from point L to point M is 17

Step-by-step explanation:

Distance Between two Points in the Plane

Given two points A(x1,y1) and B(x2,y2), the distance between them is calculated as follows:

[tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]

Point L has coordinates (-10,-9) and point M has coordinates (-2,6).

Calculate the distance between L and M:

[tex]d=\sqrt{(6+9)^2+(-2+10)^2}[/tex]

[tex]d=\sqrt{15^2+8^2}[/tex]

[tex]d=\sqrt{225+64}=\sqrt{289}[/tex]

[tex]\boxed{d=17}[/tex]

The distance from point L to point M is 17

Find the value of x. (8x-1)° (4x+7)°​

Answers

Answer:

X = -1/2 or X = 0.50

Step-by-step explanation:

8x - 1 + 4x + 7

    Combine like terms

12x + 6 = 0

     Isolate X

12x + 6 = 0

      - 6 = 0

12x = -6

12x/12 = -6/12

X = -1/2

Hope this helps :)

Write the following expression using an exponent.
1x7x7x7x7x7

Answers

Answer:

Think it is x^35

Step-by-step explanation:

Hopefully I didn't misinterpret

After a successful Friday night at the local BDubs, 92% of the daily allocated wings were sold to restaurant-goers. The kitchen staff was a bit upset because that meant there were only 96 wings left between them to take home at the end of night. How many wings did BDubs start off with that night?

Answers

Answer:

88

Step-by-step explanation:

92% = 0.92

0.92(96) = 88.32

88 is rounded to the nearest wing

Which algebraic rule describes the reflection of quadrilateral HIJK to
quadrilateral HT'J'K?

Answers

Answer:

B

Step-by-step explanation:

under a reflection in the y- axis

a point (x, y ) → (- x, y )

H'I'J'K' is a reflection of HIJK in the y- axis , then algebraic rule is

(x, y ) → (- x, y )

Answer:

B

Step-by-step explanation:

A plane intersects a prism to form a cross section that is a polygon with five sides. The minimum number of sides that the polygon at the base of the prism must have is?

Answers

Answer:

the base must have a minimum of 3 sides

Step-by-step explanation:

Answer:

It's 3

Step-by-step explanation:

333333333333333333333333333333333333333333333333333333333333333333333333333333

evaluate 7-(-19)-18+(-19)+18

Answers

Answer:

The answer is 7

Step-by-step explanation:

7-(-19)=26

26-18=8

8+(-19)=(-11)

-11+18=7

(1/2x +7)²
EXPAND IT PLEASE

Answers

Answer:

1/4x^2 + 7x + 49

Step-by-step explanation:

Use binomial theorem (a + b)^2 = a^2 + 2ab + b^2 to expand (1/2x + 7)^2

HELPPP FOR BRAINLEST!!!

Answers

Block Y has the smallest acceleration

B: block y has the smallest acceleration

Select the expression that has a value of 15.

4 + (8 x 4) ÷ 6 + 7
(4 + 8) x 4 ÷ 6 + 7
4 + 8 x 4 ÷ (6 + 7)
(4 x 8 x 4) ÷ 6 + 7

Answers

Answer:

Second option

Step-by-step explanation:

We will use the process of elimination to find the answer:

First option:
[tex]4+(8\times4)\div6+7[/tex]
[tex]8\times4=32[/tex]
[tex]4+32\div6+7[/tex]
[tex]4+32=36[/tex]
[tex]36\div6+7[/tex]
[tex]36\div6=6[/tex]
[tex]6+7=13[/tex]
[tex]=13[/tex]

Second option:
[tex](4+8)\times4\div6+7[/tex]
[tex]4+8=12[/tex]
[tex]12\times4\div6+7[/tex]
[tex]12\times4=48[/tex]
[tex]48\div6+7[/tex]
[tex]48\div6=8[/tex]
[tex]8+7=15[/tex]
[tex]=15[/tex]

Which means your answer is the second option or "4 + (8 × 4) ÷ 6 + 7."

Hope this helps.

Answer:

B

Step-by-step explanation:

A stock rises in value from $20 to $40. Then it decreases in value from $40 to $20. Is the percentage increase from $20 to $40 the same as the percentage decrease from $40 to $20? Explain.

Answers

Answer:

No

Step-by-step explanation:

To find how much something is a percent of another number, divide it by said other number

20/40 = 0.5

0.5 × 100 = 50%

The first one is a 50% increase

Then, 40/20 = 2

2 × 100 = 200%

It is a 200% decrease

So no, because 50% doesn't equal 200%

what's the perimeter of this triangle​

Answers

Answer: 60

Step-by-step explanation: if you count the length and the width and multiply them you will get your answer, i did 15 (amount of units going down) and 8 (amount of unites going sideways) and multiplied them, 15 x 8 = 120 then half of that is 60

write the equation of the line that passes through the point (0, 3) and is perpendicular.

please help me solve this :)

Answers

Answer:

y = 2x + 3

Step-by-step explanation:

to find the perpendicular line then you have to find the negative reciprocal which is 2 and to get that you flip the fraction and change the sign so

(-1/2) → 2/1 or 2

the y-intercept coordinate is (0, 3) so the y-intercept is 3

Slope of line in attachment=-1/2

Slope of the Perpendicular line=2

passes through (0,3)

Equation of line in point slope form

[tex]\\ \rm\Rrightarrow y-3=2x[/tex]

[tex]\\ \rm\Rrightarrow y=2x+3[/tex]

There are 3 circles and 12 squares. What is the simplest ratio of circles to squares?

Answers

Answer:

1:4

Step-by-step explanation:

3 goes to 12 four times

Is (2,-3) a solution to 3x + 7y = 14? Show work.

Answers

Answer:

its not a solution

Step-by-step explanation:

substitute  the points

3(-2) + 7(-3) = 14

-6 - 21 = 14?

-27 = 14 X

If 596 people voted in the election, how many were over 65 years old?

Answers

596 x 25% = 149

This implies 149 persons over the age of 65 voted.

I hope this helps.

Answer:

596 x 25% =149

149 people voted over age 65

A cellphone company charges a monthly fee of $34.00, plus $0.05 per text message. If you have at most $52 to spend, how many text messages can you send?

Answers

Answer:

360 text messages

Step-by-step explanation:

52 - 34 = 18

0.05 = 1 text message

0.05 * 360 = 18$

Hope this helps!

Answer:

52-34=18

18/0.05=360

360 text messages per month

Step-by-step explanation:

whats 4/9 divided by 3/7 equal

Answers

Answer:

1.03703703704

Step-by-step explanation:

i d k if this is what ur looking for but hope this helped :)

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