Calculate the area of sector if the angle is 45 degrees and the radius is 15cm

Answers

Answer 1

Answer:

[tex]area = \frac{45}{360} \times \pi {(15)}^{2} \\ = 88.35729338221 \\ = 88.6 \: (3sf)[/tex]


Related Questions

A school club visits a science museum. Student tickets cost $10 each.
Non-student tickets cost $15 each. The club paid $300 for the tickets.
Which equation below could model this situation? *

A. Y=300(15+10)
B. 300=10x + 15y
C. 25x=300
D. Y=300+10x

Answers

B because 300 is the total. In order to get the total you would need to add 10x and 15y. Both x and y represent the amount of people.

Shape 1 and shape 2 are plotted on a coordinate plane. Which statement about the shapes Is true?

Answers

Answer:

They are congruent.

Step-by-step explanation:

You can tell because a string of rigid transformations could lay them directly on top of each other without any parts hanging off.

You can reflect shape 2, rotate it, then translate it up to lay them on top of each other.

Brainliest goes to whoever answers correctly and explains also if you want extra points answer my other questions

Answers

Answer:

Step-by-step explanation:

Question 1 = 2002

2002 - 2000 = 2 (the years since 2000)

y = (275 x 2) + 50

y = 875

Question 2 = 1425 likes

2005 - 2000 = 5 (the years since 2000)

y = (275 x 5) + 50

y = 1425

Question 3 = 2018

Since y = 5000

5000 - 50(the extra likes) = 4950

4950 / 275 = 18 (the years since 2000)

2000 + 18 = 2018 (the year)

Heeeelp please I'm desperate

Answers

Answer:

A = 108 ft²

Step-by-step explanation:

the length of the smaller rectangle must be 9 (27÷3)

therefore, the ratio of length to width is 3/9 and if the polygons are similar then the length and width of the larger shape would be 6/18

18 x 6 = 108

A bag contains red, white and black counters. The pie chart shows information about the counters in the bag. What fraction of the counters are red ? Give your answer in its simplest form.

Answers

Answer:

(120/360) *100% = 33 red counters

What is the slope given the two points?
(-3,12) & (4,5)

Answers

Answer:

-1

Step-by-step explanation:

(-3 , 12)  & (4, 5)

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

          [tex]= \frac{5 - 12}{4-[-3]}\\\\= \frac{-7}{4+3}\\\\=\frac{-7}{7}\\\\= -1[/tex]

Answer: -1

Explanation:

Let, (-3,12) be (x1,y1) and (4,5) be (x2,y2)

We know that slope = (y2 - y1)/(x2 - x1)

So, slope of given two points = (5 - 12)/(4 - (-3))

= -7/(4+3)

= -7/7

= -1

Therefore, slope of given two points = -1

16. If f(x) = x2 + 2, which interval describes the range of this function?
(1) (-00,00) (2) [0,00) (3) [2,00) (4) (-00,2]

00 means infinity

Answers

Answer:

Number 4

Step-by-step explanation:

Alice is given pocket money every week. She saves one-half of it, spends one-quarter of it on magazines and one-third of the remainder on sweets. She is left with 80 Gp in her purse.​

Answers

Answer: in the beginning she has 1920 Gp.

Step-by-step explanation:

farmer joe used 2/13 bags of seeds on each acre of land. If there are 6 acre of land, how much seed did he use?

Answers

Answer:

12/13 bags

Step-by-step explanation:

2/13 * 6 = 12/13

A scalene triangle has the lengths 6, 11, and 12. Keyla uses the law of cosines to find the measure of the largest angle. Complete her work and find the measure of angle Y to the nearest degree.

Answers

Answer:

The maximum angle is 84.3 degree.

Step-by-step explanation:

Sides of a triangle is

a = 6 , b = 11, c = 12

The maximum angle is opposite to c.

So,

[tex]a =6, b =11, c = 12 \\\\cos C =\frac{a^2+b^2-c^2}{2 ab}\\\\cos C =\frac{36+121-144}{2\times 6\times 11}\\\\cos C = \frac{13}{132}\\\\cos C = 0.0985\\\\C =84.3^o[/tex]

Answer:

The person above got it wrong its 84

Step-by-step explanation:

got it wrong on edge

The motion of the ball from the time it was thrown upwards was modeled closely by the function,h(t)=-16t2+128t+144, where h(t) represents the height of the ball in feet after t seconds. After how many seconds did the ball reach the ground?
please I need help

Answers

Answer:

9 seconds

Step-by-step explanation:

When the ball reaches the ground, the height, h(t), is 0. Might as well make the numbers easier to work with - since for the x-intercepts (t-intercepts), h(t) = 0, you can divide the entire equation by the greatest common factor, in this case -16, to make things better:

[tex]0=-16t^2+128t+144\\0=t^2-8t-9[/tex]

Now you can solve this any way you like, such as by using:

[tex]\frac{-b \± \sqrt{b^2-4ac}}{2a}\\[/tex]

This is an easy polynomial though, and you may be able to factor it just by eyeballing it:

[tex]0=t^2-8t-9\\0=(t-9)(t+1)\\t=9,-1[/tex]

You can't have negative time, so we reject -1, leaving only 9 as the answer.

Select the correct graph of the equation.

Answers

Answer:

A

Step-by-step explanation:

The -2 indicates that y would be -2; because A is the only option with that being true, we can eliminate all other potential options rather quickly.

I believe this is 3/5x-2 but please take pictures with all information in view so we can provide better answers!

Triangle ABC ~ Triangle DEF. Measure of angle A = 20
degrees and measure of angle F = 65 degrees. AB=10, DE = 15, EF= 12.
Find measure of angles B, E, D and C and the length of BC.

Answers

Answer:

B=95°

E=95°

D=20°

C=65°

BC=7cm

Step-by-step explanation:

the triangles look like they are identical, just different in size only. Since DE= 15 and AB=10 that may mean that they have a 5cm difference making side BC= 7cm since EF= 12 minus 5 equals 7cm. Now for the other angles, a triangle no matter what,if we put all their angles together equal 180°. We already know angle A= 20 so the same applies to angle D. We also know that angle F=65 degrees, that makes angle C the same. The only thing that's left are angles B and E that can be found by adding our other angles. So if A+C(20+65)=85 then 180-85=95 degrees is angle B and since the triangles are identical the same goes to E.

Pls help me with this one if: 1 1/2+ 2 3/4+ 3 2/5=6+10/20+15/20+8/20=6 33/20=7 13/20 then what is 2 1/2+1 3/4+3 2/3=?? It's adding and subtracting mixed numbers by the way​

Answers

Answer:

7 11/12

Step-by-step Explanation:

2 1/2 = 2 2/4

2 2/4 + 1 3/4 = 3 5/4 = 4 1/4

4 1/4 = 4 3/12

3 2/3 = 3 8/12

4 3/12 + 3 8/12 = 7 11/12

Which inequality explains why these three segments cannot be used to construct a triangle?​

Answers

Answer:

Iliana cannot construct a triangle because the sum of the two smaller sides will not be greater than the third side. Iliana cannot construct a triangle because the sum of the two smaller sides will be greater than the third side.

help me with this mathematics

Answers

Answer: B

Step-by-step explanation: 65/100 = 65%

Answer:
B, 65

Explanation:
65:100 = 0.65
0.65 = 65%

Hope this helped :)

Will give brainliest!! Pls help
Directions: Simplify each term by factoring.
1. 3rs

2. 12xy

3. 5x^2

4. 36x^2

5. 25x^2

6. 30x^2

7. 5x^3

8. 24y^3

9. 9xy

10. 12x^4

Answers

Factoring means to break and make it shorter.

Answers:

1. [tex]3rs=3*r*s[/tex]

2. [tex]12xy=2*2*3*x*y[/tex]

3. [tex]5x^{2} =5*x*x[/tex]

4. [tex]36x^{2} =2*2*3*3*x*x[/tex]

5. [tex]25x^{2} =5*5*x*x[/tex]

6. [tex]30x^{2} =5*7*x*x[/tex]

7. [tex]5x^{3} =5*x*x*x[/tex]

8. [tex]24y^{3}= 2*2*2*3*y*y*y[/tex]

9. [tex]9xy=3*3*x*y[/tex]

10. [tex]12x^{4} =2*2*3*x*x*x*x[/tex]

hope this helps

Put the following equation of a line into slope-intercept form, simplifying all
fractions.
10x + 2y = -18

Answers

Answer:

y = -5x-9

Step-by-step explanation:

Slope intercept form is

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

10x + 2y = -18

Subtract 10x from each side

10x + 2y-10x =-10x -18

2y = -10x-18

Divide each side by 2

2y/2 = -10x/2 -18/2

y = -5x-9

cuanto es 14° 15´ 12´ ´ X 2 ayuda por favor

Answers

Answer:

28° 30´ 24´ ´

Step-by-step explanation:

14° 15´ 12´ ´ x 2 = 28° 30´ 24´ ´

Answer:

nosee

Step-by-step explanation:

nada


Write and equation for a line that is parallel to the line 4y + 3x = 12

Answers

Answer:

y = -3/4 x + B

Step-by-step explanation:

B is the translation of the line across y-axis

Find the volume of the sphere.
Either enter an exact answer in terms of π or use 22/7 for π.

Answers

Answer:

0.167π

Step-by-step explanation:

r = 0.5

[tex]Volume = \frac{4}{3} \pi r^{3} = \frac{4}{3} \pi 0.5^{3} = 0.167\pi[/tex]

Miguel and Jacqui built towers out of craft sticks.Miguel's tower had a 4-inch base.Jaquis tower had a 6-inch base.Miguels tower had a volume of 128 cubic inches and jaquis had a volume of 288.Who's tower was taller

Answers

Answer:

Height is same for both the towers

Step-by-step explanation:

The computation is as follows;

For 1st tower

The height is

= 128 ÷ 4^2

= 8 inches

And,  

For the 2nd tower

The height is

= 288 ÷ 6^2

= 8 inches

So as we can see that the height of the both the tower is same i.e. 8 inches so the same should be considered

find a unknown length of the sides​

Answers

Answer:

[tex]a = 3\sqrt{7}[/tex]

Step-by-step explanation:

Given

See attachment

Required

Determine (a)

To do this, we make use of Pythagoras theorem.

[tex]12^2 = a^2 + 9^2[/tex]

[tex]144 = a^2 + 81[/tex]

Collect like terms

[tex]a^2 = 144 -81[/tex]

[tex]a^2 = 63[/tex]

Take square roots

[tex]a = \sqrt{63}[/tex]

Expand

[tex]a = \sqrt{9*7}[/tex]

Split

[tex]a = \sqrt{9}*\sqrt{7}[/tex]

[tex]a = 3\sqrt{7}[/tex]

2 = n/3 what is n? what does n equal

Answers

Answer:

n = 6

Step-by-step explanation:

Given

2 = [tex]\frac{n}{3}[/tex] ( multiply both sides by 3 to clear the fraction )

6 = n

Answer:

n=6

Step-by-step explanation:

If you divided 6 and 3 you would get an answer of 2. So the equation is saying n/3 which is n divided by 3 would give an answer of 2.

Introduce the variables and set up the system of equations: Rafael and Lucas go to the mall. The two of them buy a total of 15 t-shirts. Rafael gets 3 less than twice as many t-shirts than Lucas. How many t-shirts did each of them get?

Answers

Answer:

lucas = 9

rafael = 6

Step-by-step explanation:

two equations can be derived from the question

r + l = 15 equation 1

r = l - 3  equation 2

r = rafael

l = lucas

substitute for r in equation 1

l - 3 + l = 15

combine similar terms

l + l = 15 + 3

2l = 18

l = 9

substitute for l in equation 1

r + 9 = 15

r = 15 -  9

r = 6

37) The endpoint of the diameter in circle 0 are (-2,5) and (6,5), find the equation of the circle in standard form

Answers

Answer:

(x-2)^2+y^2=16

Step-by-step explanation:

If the center of the circle is (h,k) and the radius is r, then the equation of a circle is (x-h)^2+(y-k)^2=r^2 (with the Pythagorean theorem)

So, the center of this circle 0 is (2,0) and the radius is 4. Thus, the equation is (x-2)^2+y^2=16

3737373eieeeuehe3827373

Solve the following quadratic equation by using the Quadratic Formula: X²+ 2x - 3

Answers

Yep he or she is right have a nice day

please help 20 points

Answers

Answer:

Option C is correct

Step-by-step explanation:

[tex]a. - 3, - 12 \\ = 36[/tex]

[tex]b. - 6, - 6 \\ = 36[/tex]

[tex]c. \: \: 9, - 4 \\ = - 36[/tex]

[tex]d. \: \: 2,18 \\ = 36[/tex]

Hope it is helpful...

if someone answers this i won’t drop out

Answers

Answer:

d

Step-by-step explanation:

easy simple math

39.99 x 7.25

Answers

Answer:

289.92

Step-by-step explanation:

Multiply the numbers together

[tex]\longrightarrow{\green{289.9275}}[/tex] ✅

Step-by-step explanation:

[tex]39.99 \times 7.25 \\ \\ = 289.9275[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}[/tex]

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