Help for Math in attachment pls for final

Answer:

Volume of a cylinder, V = πr^2h

but r= d/2

therefore, Vol = π(d/2)^2h

from the parameters given,

Vol = π(18/2)^2h

=81πh

Answer:

a- 130, 130, and 50

b- 7 and 10

Answer:

a- 130, 130, and 50

b- 7 and 10

Step-by-step explanation:

Answer:

43.39

Step-by-step explanation:

It's easy division/

9514 1404 393

Answer:

  38.5°

Step-by-step explanation:

A triangle solver can give an answer easily. The angle is 38.5°.

__

The law of cosines can be written to solve for an unknown angle C opposite side 'c' and flanked by sides 'a' and 'b'.

  C = arccos((a² +b² -c²)/(2ab))

Here, we have a=35, b=48, c=30, so the angle is ...

  C = arccos((35² +48² -30²)/(2·35·48)) = arccos(2629/3360) ≈ 38.515°

The angle the cable makes with the pole is about 38.5°.

prolly D

..............................

The distance between the point JM will be 4.81 units.

In science and math, the centroid of a planar figure or firm figure, also known as the point of intersection or center of the figure, is the mean absolute position of all of the other points on the subject's surface.

The centroid of the triangle is given as,

(x, y) = [(x₁ + x₂ + x₃) / 3, (y₁ + y₂ + y₃) / 3]

Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL. Then the centroid for △JKL is at point M is given as,

(x, y) = [(7 + 1 + 5) / 3, (8 + 2 + 2) / 3]

(x, y) = (13/3, 12/3)

(x, y) = (13/3, 4)

Then the distance between the point JM is calculated as,

D² = (13/3 - 7)² + (4 - 8)²

D² = 7.1111 + 16

D² = 23.11

D = √23.11

D = 4.81 units

The distance between the point JM will be 4.81 units.

More about the centroid of the triangle link is given below.

https://brainly.com/question/10708357

#SPJ2

Answer: y=4x-2

Step-by-step explanation:

Since you are looking for y-intercept, the point has to be on the vertical line and the slope is 4 so it has to go up 4 to the right 1

Answer:

x equals to -1

Step-by-step explanation:

x-4x :3

-3x : 3

so x: -1

Answer:

y=-2x+5; slope is -2

Step-by-step explanation:

slope is rise/run. we can see it rises 2 and goes left one which would give us rise/run=2/-1=-2. that is our slope.

using y=mx+b to write the equation, m is slope and b is the y-int.. we can see that the y-int. is (0,5). we can plug 5 into b.

plugging b and m in we can get the equation: y=-2x+5

Answer:

The answer is below

Step-by-step explanation:

Hana has some blue paint. She wants to lighten the shade, so she mixes in 1  cup of white paint. The color is still too dark, so Hana keeps mixing in 1 cup of  white paint at a time. After adding 4 cups, she decides the color is too light.

How would she express the amount of paint to add to be between too dark and too light.

Solution:

After adding a cup of white paint, the color is still dark, she adds the second cup of paint and the color is still dark. She adds the third cup of paint and the color is still dark but when she adds the fourth cup of white paint, the color became too light.

This means that the amount of paint to add to be between too dark and too light is between the third and fourth cup.

Let w represent the amount of paint to add to be between too dark and too light. Hence:

3 < w < 4

Answer:

Volume of pyramid with square base is 1057.54 m³

Step-by-step explanation:

We are given:

Length of base of pyramid = 14.4 m

Height of pyramid = 15.3 m

We need to find:

Volume of pyramid with square base

The formula used is: [tex]Volume=\frac{1}{3}\times a^2 \times h[/tex]

Where a = base of pyramid and h is height

Putting values and finding volume

[tex]Volume=\frac{1}{3}\times a^2 \times h\\Volume=\frac{1}{3}\times (14.4)^2 \times (15.3)\\Volume=\frac{1}{3}\times 207.36 \times 15.3\\Volume=1057.54 \ m^3[/tex]

So, Volume of pyramid with square base is 1057.54 m³

Answer:

1057.5

Step-by-step explanation:

Answer:

11x + 8 +8x +12 =27  (drop the parenthesis, there's no actual need for them)

19x +20 =27 (i combined like terms and then subtracted 20 from both sides)

19x = 7  (divide both sides by 19 to get x alone)

x= 7/19 or 0.36842105 (the answer)

Step-by-step explanation:

Answer:

Y=4x-3

Explanation: If we look 2 = 5 We can do 4(2)= 8 -3 = 5 So that the answer and 4(4)= 16-3 = 13 so these are the Y so this is the answer!

Answer:

He burrows 6 holes in 2 minutes which means that he can burrow 3 holes in 1 minute.

To determine how many he can burrow in 7 minutes, you would multiply the

unit rate of 3 holes in 1 minute by 7.

He would burrow 21 holes in 7 minutes.

Step-by-step explanation:

brainliest pls?

Answer:

He burrows 6 holes in 2 minutes which means that he can burrow 3 holes in 1 minute.

therfore your answer would be 21 holes in 7 minutes

Step-by-step explanation:

Answer:

the cube root of 262144 is 512

Answer:

64

Step-by-step explanation:

The cube root of 262144 is 64

Answer:

[tex]1).[/tex]  [tex]2\frac{4}{5}[/tex]

[tex]2).[/tex]  [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

[tex]1).[/tex] [tex]1\frac{2}{5}*2[/tex]

Convert mixed number to improper fraction: [tex]a\frac{b}{c} =\frac{a*c+b}{c}[/tex]

[tex]1\frac{x2}{5} =\frac{1*5+2}{5} =\frac{7}{5}[/tex]

[tex]\frac{7}{5} *2[/tex]

[tex]\frac{7}{5} *2[/tex]

Apply the fraction rule: [tex]\frac{a}{b}*c =\frac{a*c}{b}[/tex]

[tex]\frac{7}{5} *2=\frac{7*2}{5}[/tex]

[tex]=\frac{7*2}{5}[/tex]

Multiply the numbers: [tex]7*2=14[/tex]

[tex]=\frac{14}{5}[/tex]

Convert improper fractions to mixed numbers: [tex]\frac{14}{5}[/tex]

[tex]\frac{14}{5}[/tex]

Write the problem in long division format:

[tex]\begin{matrix}5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

Divide [tex]14[/tex] by [tex]5[/tex] to get [tex]2[/tex]

[tex]\begin{matrix}\space\space\space\space\space\space\emptyspace2\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

Multiply the quotient digit [tex](2)[/tex] by the divisor [tex]5[/tex]

[tex]\begin{matrix}\space\space\space\space\space\space\emptyspace2\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace1\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

Subtract [tex]10[/tex] from [tex]14[/tex]

[tex]\begin{matrix}\space\space\space\space\space\space\emptyspace2\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace14}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace1\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\space\space\emptyspace4\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

The solution for long division of [tex]\frac{14}{5}[/tex] is [tex]2[/tex] with a remainder of [tex]4[/tex]

[tex]2\quad \mathrm{Remainder}\quad \:4[/tex]

Convert to mixed number: [tex]Quotient\frac{Remainder}{Divisor}[/tex]

[tex]\frac{14}{5} =2\frac{4}{5}[/tex]

[tex]=2\frac{4}{5}[/tex]

[tex]2\frac{4}{5}[/tex]

Convert [tex]\frac{4}{5}[/tex] to decimal using long division

[tex]\frac{4}{5}[/tex]

Divide [tex]4[/tex] by [tex]5[/tex] to get [tex]0[/tex]

[tex]\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

Multiply the quotient digit [tex](0)[/tex] by the divisor [tex]5[/tex]

[tex]\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

Subtract [tex]0[/tex] from [tex]4[/tex]

[tex]\begin{matrix}\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\emptyspace4\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

Add a decimal place and a zero to the dividend

Bring down the zero from the dividend

[tex]\begin{matrix}\space\space\space\space\emptyspace0.\space\space\space\space\space\space\space\space\space\space\space\\ 5\overline{|\smallspace4.0}\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\emptyspace4\emptyspace0\space\space\space\space\space\space\space\space\space\space\end{matrix}[/tex]

Divide [tex]40[/tex] by [tex]5[/tex] to get [tex]8[/tex]

[tex]\frac{40}{5} =8[/tex]

The solution for long division of [tex]\frac{4}{5}[/tex] is [tex]0.8[/tex]

[tex]=2+0.8[/tex]

Add [tex]2+0.8=2.8[/tex]

[tex]2).[/tex] [tex]\frac{1}{4} *1[/tex]

Multiply [tex]\frac{1}{4} *1=\frac{1}{4}[/tex]

[tex]=\frac{1}{4}[/tex]

Anything multiplied by [tex]1[/tex] is the same number.

Divide the the numbers [tex]\frac{1}{4}[/tex] to get decimal form

Divide [tex]1[/tex] by [tex]4[/tex]

[tex]\frac{1}{4} =0.25[/tex]

[tex]=0.25[/tex]

Answer:

12/5x2=25

1/4x1=1/4

Step-by-step explanation:

Answer:

172.5

Step-by-step explanation:

The formula for the surface area of a right circular cone (the following shape) is πr( r + √h^2 + r^2). Since the radius (r) is already given (3) and the height (h) is already given (15), you just replace each r with 3 and h with 15. After solving this out, you should get 172.45, which rounds to 172.5 to the first decimal place

Answer:

Step-by-step explanation:

Fist you add -13 to 6y and than 4x that should be 69420

Answer:

A: Quadrant IV

B. Quadrant III

Step-by-step explanation:

Quadrant IV is the bottom right

Quadrant III is the bottom left

Answer:

the answer is 7$

Step-by-step explanation:

I used a percentage app

Answer:

Here u go! :)

Step-by-step explanation:

10:20, 15:25, 20:30 etc..

Hope this helps you! xx

Answer:

10:20, 15:30, 20:40, 25:50

Step-by-step explanation:

Answer: a

Step-by-step explanation:

multiply each answer by 10

Answer: m∠T = 48°

ΔMAT has MA = MT

=> ΔMAT is a isosceles triangle at M

=> ∠A = ∠T = (180° - ∠M)/2

=> x + 20  = (180 - 3x)/2

⇔ 2x + 40 = 180 - 3x

⇔ 5x = 140

⇔ x = 140/5

⇔ x = 28

=> ∠A = ∠T = 28 + 20 = 48°

Step-by-step explanation:

Answer:

2.89949493661

Step-by-step explanation:

Hope i helped! Have a wondeful weekend! :)

Answer: 2.899494936610

Step-by-step explanation:

Answer:

x is the element of {-4,-3,-2,-1,0,1,2,3,4}

Answer:

3a^3

Step-by-step explanation:

Ok I got you bud now the the first thing to notice that they're all the same variable. so the way I learned to look at is like this  

1a^2 x 3a^1

so the reason I put it like this is so I remember that in front of every variable is a coefficient. so you would first multiply the coefficient

3x1=3

3

then multiply the a's you have one a that is being squared and one a to the first power so since your multiplying them you just add the exponents

a^1 + a^2 = a^3

so when you put it all together it says 3a^3

hope this helps

Step-by-step explanation:

The line A, the slope is +2

And line B the slope is n-1

Answer:

For A;

x1 = -2, y1 = -3, x2 = 3, y2 = 7

Gradient = (y2 - y1)/(x2 - x1)

= (7 - (-3))/(3 - (-2))

= 10/5 = 2.

For B;

x1 = 7, y1 = -2, x2 = -2, y2 = 7

Gradient = (y2 - y1)/(x2 - x1)

= (7 - (-2))/(-2 - 7)

= 9/-9 = -1.

Answer:

X= -3

Step-by-step explanation:

Answer:

B.

Hope this helps!