Mathematics High School

Please help. I don't understand this.​

Please Help. I Don't Understand This.

Answers

Answer 1

Answer:

radius=6

Step-by-step explanation:

arc ACB=6xPi

Pi=3.14159

arc ACB=18.85 (rounded to 2 places)

ACB is a half circle so a full circle would be 18.85x2 or 37.7

circumference (whole circle)=2 x Pi x radius

37.7=2 x 3.14159 x radius

radius= 37.7/(2 x 3.14159)

radius=6

Related Questions

expand this bracket (x + 3/2)^2

Answers

X^2 + 9/4 is your answer

Hope this helps you

the answer is x^2 + 3x + 9/4

Is 5.6742 rational number

Answers

Answer:

YES

Step-by-step explanation:

if a sphere has the same volume as a cube with edge length 5, estimate the radius of the sphere

Answers

Answer:

The radius of the sphere will be:

[tex]r=3.1[/tex] units

Step-by-step explanation:

Given that a sphere has the same volume as a cube with edge length 5.

[tex]V_c=V_s[/tex]

[tex]\:a^3=\frac{4}{3}\pi r^3[/tex]

[tex]\:r^3=\frac{3\:a^3}{4\pi }[/tex]

[tex]\:\:r=\sqrt[3]{\frac{3\:a^3}{4\pi \:}\:\:}[/tex]

substitute a = 5

[tex]r=\sqrt[3]{\frac{3\:\left(5\right)^3}{4\pi \:\:\:}\:\:}[/tex]

[tex]r=3.1[/tex] units

Therefore, the radius of the sphere will be:

[tex]r=3.1[/tex] units

Find the radius of a circle in which an inscribed square has a side of 8 inches.​

Answers

Answer:

[tex]4\sqrt{2} =5.66[/tex]

Step-by-step explanation:

The square is in the circle, so the diameter is the diagonal line of the square. This divides the square into two right triangles.

Two sides of the right triangle equal 8. This qualifies it as a special right triangle. This triangle has two sides that = x (in this case 8) and the hypotenuse is [tex]x\sqrt{2}[/tex].

Substitute 8 in for x.

[tex]8\sqrt{2}[/tex] is the diameter, so we divide in half to get the radius = [tex]4\sqrt{2}[/tex]

Divide the polynomials.
Your answer should be a polynomial.
22
49
x +7

Answers

Answer:

x - 7

Step-by-step explanation:

Given

[tex]\frac{x^2-49}{x+7}[/tex]

x² - 49 is a difference of squares and factors as (x - 7)(x + 7)

= [tex]\frac{(x-7)(x+7)}{x+7}[/tex] ← cancel x + 7 on the numerator/ denominator

= x - 7

Answer:

Formula used: a²-b²=(a-b)(a+b)

[tex] ★\:\:\frac{( {x}^{2} - 49) }{(x + 7)} = \frac{ ({x}^{2} - {7}^{2} ) }{(x + 7)} = \frac{(x - 7)(x + 7)}{(x + 7)} =\boxed{ (x - 7)}[/tex]

(x-7) is the right answer.

PLS HELP HUMAN I LOVE YALL HELP

Answers

The answer is b
Plz mark me as Brainly
your answer would most likely be B my love! good luck

The Lakeside Marina charges a $35 rental fee for a boat in addition to charging $15 per hour. What is the rate of change for this function?

Answers

Answer:

I think that it is y=15x+35

Step-by-step explanation:

15*x is how many hours and you have to pay $35 regardless to rent the boat

25% of ___ is 7 ??????

Answers

Answer:28

Step-by-step explanation:

This is a missing whole problem so you must divide 7 by 25/100

Or multiply it by it's reciprocal 100/25 or 4/1 x 7 = 28

The cost of 5 pounds of bananas is $3.25. What is the constant of proportionality that relates the cost in dollars, y, to the numbers of pounds of bananas, x?

Answers

Answer:

X = Cost of the bananas

Step-by-step explanation:

While y represents the weight (in pounds) of the bananas, x represents the cost of the bananas proportional to the weight.

Answer:

0.65

Step-by-step explanation:

12x=9y+27 in slope intercept form with work

Answers

-8 I believe is the answer

GIVING BRAINLIEST Cattails thrive in places where there is plenty of water year-round. Which event might limit a cattail population? A.Drought B.Rainy spring C.Thunderstorm D.Eclipse

Answers

Answer:

A. Drought, this is when the land is dry and no water is around essentially.

Answer:

The answer is drought. I took the test.

Determine the equation of the line perpendicular to the line 4x+2y-7=0 that has the same x-intercept as the line 2x+3y-12=0

Answers

Let’s first make a blank equation in slope-intercept form: y=mx+b

To find the slope, we find the perpendicular slope to 4x+2y-7=0. First, change this to slope-intercept form:

4x+2y=7
2y=7-4x
y=-2x+(7/2)

The slope of this line is -2, so the perpendicular slope will be the opposite inverse, or 1/2. This is the first component.

Second, to find the x-intercept of 2x+3y-12=0, we have to set y=0 and solve:

2x+3(0)=12
2x=12
x=6 or (6,0)

So in total, we need a line with a slope of 1/2 passing through (6,0). Plug this back into y=mx+b:

0=1/2(6)+b
0=3+b
b=-3

So in total, the equation is y=(1/2)x-3.

If line segment AB represents 50​%, what is the length of a line segment that is​ 100%?

Answers

keekiwnssbsidbsisbssjsbsubsisbsisvsisbsisbsusb
PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

Which statement shows correct reasoning for finding 12+3/8? A Multiply 12 by 8, then divide by 3. B. Multiply 12 by 3, then divide by 8. C. Multiply 3 by 8, then divide by 12 D. Multiply 12 by 1/8, then multiply by 3.​

Answers

Answer:

B

Step-by-step explanation:

plz mark the brainliest. if that is adding not multiplying, you will do 3 divide by 8 first and then add 12. I think its a typo and it is multiply so if it is multiply, it is B. plz mark the brainliest

I need to know the answer step by step.

Answers

Answer:

108

Step-by-step explanation:

Since B=3, you need to do 4(3)^2*3

Do 3^2, which is 9,

4*9=36,

36*3=108

What are the variables in the expression 2w + 11t + 4y

Answers

They are T, W, and Y

4. THE LOV TEMPERATURES FOR A VEEK IN EDMONTON, ALBERTA ARE -15°C, -1200
-10°C, -12°C, -18°C, -20°C, AND_-25°C. WHAT IS THE MEAN LOV
TEMPERATURE FOR THE WEEK? SHOW YOUR WORK

Answers

Answer:

-16°C

Step-by-step explanation:

The lov temperatures for a week are :

-15°C, -12 , -10°C, -12°C, -18°C, -20°C, and -25°C.

We need to find the mean love temperature for the week.

Total no. of observations = 7

Mean = sum of observations/total no of observations

[tex]M=-\dfrac{15+12+10+12+18+20+25}{7}\\\\M=-16^{\circ} C[/tex]

So, the mean temperature is -16°C.

Simplify the expression by combining like terms. 7w+9+6X
A. 22wx
B. 13wx+9
C. 7w+6x+9
D. 1w+9

Answers

Answer:

Step-by-step explanation:

the answer stay the same due to the fact there are no like terms

7w+9+6x

The correct answer is c. Please give me brainlest let me know if correct or not okay thanks bye

What is the value of c?

Answers

Its should be 98 degrees

can solve real world problems involving embedded triangles:


The value of x is
please I need this answer quick.

Answers

Answer:

It is 15 x=15

Step-by-step explanation:

4.25 • (–1.25) positive or negative?

Answers

Answer:

Negative

Step-by-step explanation:

Positive times a negative will always be negative

PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

Type the missing numbers in this sequence:

31, , , 58, 67, 76

Answers

31,40,49,58,67,76......

Which is the least amount?
[A] 1.20 [B] 0.21 [C] 1.02 [D] 1.020

Answers

The Answer Is:

B (0.21)

5.02 Which equation does the graph below represents?

1. y = -1/2x
2. y = -2x
3. y = 1/2x
4. y = 2x

Answers

y= 2x because it’s 8/4 which can be divided by 4 and it equals 2x

Answer:

2. y= -2x

Step-by-step explanation:

When the line is on an exact point like it is on (-4, 8), we can simplify it by going rise/run

Rise is the same as y (8), and your run is x (-4)

When you divide 8/-4, your answer will be -2

Therefore, the answer is y= -2x

giving brainliest to whoever can solve correctly

Answers

Answer:

The answer is 9

Step-by-step explanation:

4/9 = 9/4

I WILL MARK BRAINLIEST!!!!!!!

Answers

Answer:

C

Step-by-step explanation:

hope it helps thank you

Given the following triangle, which Trig function would you use to solve for the missing side length? *


Captionless Image
Sine
Cosine
Tangent

Answers

Answer:

cosine

Step-by-step explanation:

17+ x/6 what is the answer

Answers

Answer:

x=-11

Step-by-step explanation:

17+x/6=0

17+x=6

x=-11

what is (4x - 4) + (2x + 2)? (no direct answer.)​

Answers

Answer:

6x -2

Step-by-step explanation:

(4x - 4) + (2x + 2)

4x + 2x = 6x

-4 + 2 = 2

6x - 2

the taxi fare in a city is as follows: for the first kilometre, the fare is rupee 8 and for the subsequent distance it is rupee 5 per km. taking the distance covered as x km and total fare as rupee y, write a linear equation for this information, and draw its graph

Answers

Answer:

The linear equation is Y=5x+8 where x>0

(you can input this into the Desmos graphing calculator to see the graph if you like!)

Step-by-step explanation:

To get the answer is fairly straight forward. If we know that distance covered is x in the equation and we know that a linear equation follows the template Y=mX+b where m is slope and b is the y-intercept. The first step is to fill in what we know. That would look as such Y=_X+_. We can then attempt to fill in the blanks for m and b. Because we know that it is 5 rupees extra per subsequent kilometre we can put 5 as the multiplier for x and there is our m or slope. We now have Y=5x+_. Now for b. B in this case is quite simple as is showing us where the start of the graph is. It is stated that there is a flat fee of 8 rupees, so the total can never be less than 8. Because b is simply where the line intercepts the y axis, and we want it to intercept at 8, we can just put a plus 8. And there you have it Y=5x+8. One important note is that the graph when drawn should be a ray extending from point (0,8). This is because we want to eliminate all of the areas on the plane that would make the fare negative, as we could not have a negative cab fare. This is as simple as plotting the line starting from point (0,8) on the y axis. Happy to help!  

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