I need help please can’t seem to understand this

Answer:

a. 42

Step-by-step explanation:

10.5x4=42

9514 1404 393

Answer:

  781.4 cm²

Step-by-step explanation:

The shaded region consists of four (4) 30° sectors and eight (8) 60° segments. The formulas for the areas of these figures can be used.

  area of sector = (1/2)r²θ

  area of segment = (1/2)r²(θ -sin(θ))

For radius r, the area of the 4 sectors is ...

  sector area = 4(1/2)(r²)(π/6) = (π/3)r²

and the area of the 8 segments is ...

  segment area = 8(1/2)(r²)(π/3 -sin(π/3)) = 4r²(π/3 -√3/2) = (4/3)πr² -r²(2√3)

So, the total shaded area is ...

  shaded area = r²(π/3 +4π/3 -2√3)

The radius of the circle is 21 cm, so the shaded area is ...

  (21 cm)²(5π/3 -2√3) ≈ 781.4 cm²

Answer: Ruth have to make 7 hats to break even.

Step-by-step explanation:

Break even point is a point where Cost = Revenue.

Let x be the number of hats sold.

Given: Cost of booth = $63

Each hat cost = $10

Selling price for each cost = $19

As per given,

Total cost = Cost of booth+ (Cost of each hat)(Number of hats)

= 63+10x

Total selling price = 19x

For break even,

63+10x=19x

9x=63

x=7

Hence, Ruth have to make 7 hats to break even.

Step-by-step explanation:

Please mark as brainlist !!!!!!(☆^ー^☆)

Answer:

IK = 20

Step-by-step explanation:

If Point J is on the line segment IK, then;

IK = IJ + JK

Given that

IJ = 4

IK = 5x

JK = 4x

Substitute into the expression

5x = 4 + 4x

5x - 4x  = 4

x = 4

Get the value of IK

IK = 5x

IK = 5(4)

IK = 20

Hence the numerical length of IK is 20

Answer:

B) 9

Step-by-step explanation:

rise over run and simplify

Answer:

a and b bc that are in the negative-positive quad

Answer

look at the ss i sent to see the answer

Step-by-step explanation:

Step-by-step explanation:

length of arc=2πr(340/360)

= 2x3.14x3(0.944)

=17.78 approximately 17.8

Answer:

[tex]x=-1+\sqrt{6 }[/tex]

[tex]x=-1-\sqrt{6 }[/tex]

Step-by-step explanation:

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

Ignore the A before the ±. It wouldn't let me type it correctly.

x² + 2x - 5 = 0

a = 1

b = 2

c = - 5

[tex]x=\frac{-2±\sqrt{2^{2}-4((1)(-5)) } }{2(1)}[/tex]

[tex]x=\frac{-2±\sqrt{4-4((1)(-5)) } }{2(1)}[/tex]

[tex]x=\frac{-2±\sqrt{4+20 } }{2(1)}[/tex]

[tex]x=\frac{-2±\sqrt{24 } }{2}[/tex]

[tex]x=\frac{-2±\sqrt{(2)(12) } }{2}[/tex]

[tex]x=\frac{-2±\sqrt{(2)(2)(6) } }{2}[/tex]

[tex]x=\frac{-2±\sqrt{(2)(2)(2)(3) } }{2}[/tex]

[tex]x=\frac{-2±(\sqrt{2} )(\sqrt{2})(\sqrt{(2)(3) )} }{2}[/tex]

[tex]x=\frac{-2±2\sqrt{6 } }{2}[/tex]

Two separate equations

[tex]x=\frac{-2+2\sqrt{6 } }{2}[/tex]

[tex]x=\frac{-2-2\sqrt{6 } }{2}[/tex]

[tex]x=-1+\sqrt{6 }[/tex]

[tex]x=-1-\sqrt{6 }[/tex]

Answer: 5 has a value of 50 000 2.

Answer:

A = (q² + gh) / g

Step-by-step explanation:

Given equation:

q² = g(-h + A)

Solve for A

q² = g(-h + A)

q² = -gh + gA

Add -gh to both sides

q² + gh = -gh + gA + gh

q² + gh = gA

Divide both sides by g

(q² + gh) / g = gA / g

A = (q² + gh) / g

27.928  times 15.75

439.866 rounds to 440

Answer:

5(x + y) + 6(x − y)

Distribute

5x+ 5y + 6x -6y

Combine like terms

11x -y

(5x − 3y) − x + 3x − 5y

Combine like terms

5x -x +3x   -3y -5y

7x -8y

4(x + y) − 3(x + y)

Distribute

4x +4y -3x -3y

Combine like terms

x -y

x − 4x + 6y + (14x − 5y)

Combine like terms

x -4x +14x    +6y -5y

11x    +y

3x + 3y + 2(2x − y)

Distribute

3x+3y +4x -2y

Combine like terms

7x +y

Step-by-step explanation:

simple

multiples of 6= 1, 2, 3, 6

multiples of 12= 1, 2, 3, 4, 6, 12

.L.C.M of 12 and 6= 12

Answer:

First multiply the first two terms so (-0.5)(-1.2) = 0.6 as product of two negative numbers is positive number.

Step-by-step explanation:

Im BIg BrAiN :D

Refer to the attachment for answer...

Answer:

$82.5

Step-by-step explanation:

40%-33

10%-8.25

100%-82.5

Answer:

15 Apr 2018 — Area of path parallel to the remaining length of ... Area of parallelogram ABCD = AB × AE = 8 × 4 cm2 ... We can also calculate area of shaded portion by using area of..

Answer:

185.25 cm^2

Step-by-step explanation:

since only length is given i considered the wall as square shape. So given :

length = 13.5 cm

area of the wall = l^2

= 13.5^2

=182.25 cm^2

Answer:

no solutions

Step-by-step explanation:

3(x + 9) + 6x = 9x - 27

Distribute

3x+27 +6x = 9x -27

Combine like terms

9x +27 = 9x -27

Subtract 9x from each side

27 = -27

This is never true so there are no solutions

Answer:

d = 67.5

e = 22.5

Step-by-step explanation:

d + e = 90

d = 3e

Therefore, we can simply divide 90 by 4, which gives us 22.5, and also tells us what e equals. Then, multiply that by 3 to get d.

Hope that this helps!

Answer:37.7825

Step-by-step explanation: all you really need to do is find the percentage of 595 of 6.35 which is 37.7825

9514 1404 393

Answer:

  (a)  231°

Step-by-step explanation:

  arc WYZ = arc WX + arc XYZ

  arc WYZ = 51° +180° . . . . . XZ is a diameter, substitute known arc measures

  arc WYZ = 231°

Answer:

Step-by-step explanation:

is it that 1 bird is at the nest and the other is flying away ?