Can y’all please answer it for me

Answer:

0.1456858

Step-by-step explanation:

Hope it help

Answer:

−1/2

Explanation:

cos(8π/3)

=cos(8π/3 − 2π)

=cos(2π/3) = − cos (π/3) = −1/2

Answer:

That is true because squares are also closed for multiplication.

Answer:

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Answer:

the answer should be A

Step-by-step explanation:

Answer:

[tex]y = \frac{1}{3}x + 8[/tex]

Step-by-step explanation:

using the slope-intercept formula, u have this so far as an equation (just knowing the slope): [tex]y = \frac{1}{3}x + b[/tex]

To find the y-intercept, substitute in the values of the coordinates given to solve for b:

[tex]y = \frac{1}{3}x + b\\5 = \frac{1}{3}(-9) + b\\5 = -3 + b\\8 = b[/tex]

so u can just put 8 into your slope-intercept formula ([tex]y = \frac{1}{3}x + 8[/tex]) and that's it! hope this helps!

AAnswer:

Step-by-step explanation:

Answer:

accelerated depreciation

Step-by-step explanation:

Answer: it would be y=-4x+2

Answer:

the second option (y= -4x + 2)

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

Answer:

37.68 ft^3

Step-by-step explanation:

The parameters used in describing a cone is radius and height

Hence

Radius= 3ft

Height = 2 ft

The volume of a cone is given as

[tex]v=\frac{1}{3} \pi r^2 h[/tex]

substitute

[tex]v=\frac{1}{3}*3.14*3^2*2^2\\\\v=\frac{1}{3}*3.14*9*4\\\\v=\frac{1}{3}*113.04\\\\v=37.68 ft^3[/tex]

Hence the volume is 37.68 ft^3

Answer:

volume = 338 x 20 = 6760 cm^3

Step-by-step explanation:

large rectangular top area = 14 x 22 = 308 cm^2

small rectangular top area = 6x5 = 30 cm^2

total top area = 308 + 30 = 338 cm^2

volume = 338 x 20 = 6760 cm^3

Answer:

I assume that "m" means meters. If so it would be 0.3 meters

Step-by-step explanation:

Answer:

The triangle is a right triangle.

Step-by-step explanation:

In the given triangle, three sides are given.

First side = 15 cm

Second side = 17 cm

Third side = 8 cm

We need to determine whether the triangle is a right triangle. For a triangle to be a right angle, it must follow the Pythagoras theorem.

The hypotenuse is the longest side of a right triangle. Let 17 cm be the hypotenuse. So,

[tex]17^2=15^2+8^2[/tex]

Now solving RHS,

[tex]15^2+8^2=225+64\\\\=289[/tex]

Now solving LHS, 17² = 289

It implies, LHS = RHS

Hence, the triangle is a right triangle.

The dimensions of the rectangular pigpen with the largest possible area are 50 ft×25 ft.

The area and perimeter of a rectangle in the study of differential calculus, specifically in optimization problems are functions of two variables that depending on what is requested in these problems can be objective functions or link functions between the variables.

We use what we know about the perimeter of the rectangle to find a condition equation that expresses the length a in terms of the width b.

P(a, b)=a+2b [Perimeter of the fence of the rectangular pigpen]

p(a, b)=2a+3b [Substitute P(a, b)=100]

100=a+2b

a=100-2b

We must find the largest area. Using the condition equation, find the area as a function of the variable b.

A(a, b)=ab [total area of the rectangular pigpen]

A(a, b)=(100-2b)b [Replace a=100-2b]

A(a, b) = 100b-2b²

Objective function Domain

A(a, b) = 100b-2b²

D={b∈R : b>0} [Domain of the objective function]

To find the extremes of the function we have to look for the critical points of the function and apply the second derivative test.

A(a, b) = 100b-2b²

A'(a, b) =100-4b [First derivative of the objective function]

A'(b)=0

100-4b=0

4b=100

b=25 [Critical point]

Applying sufficient condition for extremes

A'(b)=100-4b [First derivative of the objective function]

A''(b)=-4 [Second derivative of the objective function]

A''(b)=-4 [A''(b)<0∀b∈D]

b=25 [Maximum point of the objective function]

Calculate the dimension of the rectangular pigpen

b=25 [Width of the rectangular pigpen]

a=100-2(25)=50 [Length of the rectangular pigpen]

Therefore, the dimensions of the rectangular pigpen with the largest possible area are 50 ft×25 ft.

To learn more about the area of a rectangle visit:

https://brainly.com/question/20693059.

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The perimeter of the window is 3.93 feet.

Perimeter is the total length of the sides of a two-dimensional shape.

perimeter = πr

Where, r is the radius of the circle

And, π = 3.14

According to the given question.

The window is in the shape of semicircle.

Radius of the window = [tex]\frac{2.5}{2} = 1.25 feet[/tex]

Therefore, the perimeter of the window

= π × 1.25 ft

= 3.14 × 1.25

= 3.925

= 3.93 feet

Hence, the perimeter of the window is 3.93 feet.

Find out more information about perimeter here:

https://brainly.com/question/6465134

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Answer:

[tex]\dfrac{-2}{3}[/tex]

Step-by-step explanation:

Given that:

[tex]1 - \dfrac{3}{4} \times 2 - \dfrac{1}{6}[/tex]

[tex]\text{using BODMAS}[/tex]

[tex]\text{we first find the multiplication before subtracting the values}[/tex]

[tex]\text{So;}[/tex]

[tex]1 - \dfrac{3}{2} - \dfrac{1}{6}[/tex]

[tex]\text{now we look for the lowest common multiple L.C.M}[/tex]

[tex]= \dfrac{6 - 9 - 1}{6}[/tex]

[tex]= \dfrac{-4}{6}[/tex]

[tex]= \dfrac{-2}{3}[/tex]

Answer:

85 cents

Step-by-step explanation:

i belive

Answer:

3(1x-4) and (2x+1)-(6+6)

Step-by-step explanation:

Answer:

Hi it is me again :)

Step-by-step explanation:

multiply  the numbers

Answer:

a + 20 = 7*12 (multiplied both sides by 12)

a + 20 = 84 (calculated 7*12)

a = 84 - 20 (subtracted 20 on both sides)

a = 64 (calculated 84-20)

Answer:

TABLE 1:

88

80

65

57

50

41

45

28

14

4

TABLE 2:

176

164

132

108

90

81

60

28

11

2

Step-by-step explanation:

When two angles are complementary they add up to 90 degrees

so for example if angle 1 is 2 angle two must equal 88 (they have to add up  to 90)

When two angles are supplementary they must add up to 180 (so it's the same process as table 1 but instead of adding to 90 it's 180)

Answer:

m<2 88,80, 65, 57, 50, 41, 35, 28, 14, 4

m<4 176, 164, 132, 108, 90, 81, 60,28, 11, 2

Step-by-step explanation:

complementary means they add up to 90°

m<2 88,80, 65, 57, 50, 41, 35, 28, 14, 4

supplementary means they add up to 180°

m<4 176, 164, 132, 108, 90, 81, 60,28, 11, 2

Answer:

-5

Step-by-step explanation:

Cuz it lines up to -5 on x-axis

Answer:

3c+2=2+3c

Step-by-step explanation:

Answer:

n=9

S-B-S explanation: /Strikethrough/ - this means you can cut these parts out because they are not needed.

/log/(n+2) = /log/(n^2-70)

/n+2/ = n^2-70

/-n-2/____-n-2

------------------------------

= (0=n^2--n--72)

(n-9) =0 ______ (n+8) =0

n-9= 0 _______ n+8= 0

+9= +9 ________ -8= -8

-------------________-------------

__n=9___________ /n=-8/

Answer:

it will be 13/5 x 9/7

Step-by-step explanation:

2 3/5 / 7/9

2 x 5 = 10

10 + 3 = 13

13/5

flip 7/9 to 9/7

Answer:

i think that the answer would be C

Step-by-step explanation:

Answer: In mathematics, an area model is a rectangular diagram or model used for multiplication and division problems, in which the  or the  and  define the length and width of the rectangle.

We can break one large  of the rectangle into several smaller boxes, using number bonds, to make the calculation easier. Then we add to get the area of the whole, which is the  or quotient.

Step-by-step explanation:

For example, you can find the product 23 × 37 by finding the area of a rectangle with a width of 23 and a length of 37: Of course, there is little gained if you simply multiply 23 × 37! What makes the area model useful is that area is a conserved quantity.

Answer: The number is 106.4

Step-by-step explanation:

Let the number be x

Mar halves the number becomes = x x 1/2  to get 53.2

The equation to solve this problem is  x/ 2 = 53.2

Such that to find x

x/2= 53.2

x =  2 x 53.2= 106.4

The number is 106.4