Find the value of a that makes m || n.

Answer:

The approximate volume of dirt in the hill = 70372 ft³

Step-by-step explanation:

From the given information:

Laura uses a model of a truncated cone to estimate the volume of the dirt.

This implies that the volume of the dirt in the large hill took the shape of a truncated cone.

Her estimate then includes:

a base diameter = 80 feet ; then the base raidus (R) = 80 feet/2 = 40 feet

a top diameter  = 40 feet ; then the top radius (r) =  40 feet/2 = 20 feet

a helght = 24 feet.

Using the formula for the volume of a truncated cone :

[tex]V =\dfrac{1}{3} \times \pi \times h \times ( r^2 +r \times R+ R^2)[/tex]

[tex]V =\dfrac{1}{3} \times \pi \times 24 \times ( 20^2 +20 \times 40+ 40^2)[/tex]

[tex]V =25.133 \times ( 400 +20 \times 40+ 1600)[/tex]

V = 70371.675 ft³

V ≅ 70372 ft³

Answer:

70,336

Step-by-step explanation:

Answer:

See explanation

Step-by-step explanation:

Given

[tex]x = -7.5[/tex]

[tex]Expression: -3.8x + 6[/tex]

Required

Determine Gaira mistake

When Gaira solved the expression, she solved as:

[tex]-3.8x + 6x[/tex]

Giving her

[tex]-3.8x * -7.5 + 6 * -7.5[/tex]

This is incorrect as the correct expression is

[tex]-3.8x + 6[/tex]

and it is solved as follows:

Substitute -7.5 for x in -3.8x + 6

[tex]-3.8x + 6[/tex]

[tex]-3.8 * -7.5 + 6[/tex]

[tex]28.5 + 6[/tex]

[tex]34.5[/tex]

34.5 is the correct solution

Answer:

Gaira made a mistake when substituting the value –7.5 in for x. She multiplied both terms of the expression by –7.5 when she should have only multiplied –3.8 by –7.5. The correct answer is 34.5.

Step-by-step explanation:

Did the ED2020

Answer:

Trump is ugly

Step-by-step explanation:

Trump sucks

Answer:

he should use the 5/8 inch wide plank

Step-by-step explanation:

9/16 = 4.5/8 which is smaller than 5/8

The answer will be prime

Answer:

1/6

2/6 or 1/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

9x - 5 = 58

9x = 63

x = 7

<2 = 32°

7y + 27 + 58 + 32 = 180

7y + 117 = 180

7y = 63

y = 9

for <1: x + 58 = 180

       x = 122°

Answer:

hi

Step-by-step explanation:

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Answer: 8

Step-by-step explanation:

1. 5 * |7-9| - 2

2. 5 * 2 - 2

3. 10 - 2

4. 8

Answer:

the answer is c

Step-by-step explanation:

i just finished the quiz

He did not eliminate the same variables in steps 1 and 2

Answer:

it's the second one! 11√3 - 7√6

Answer:

B.

Step-by-step explanation: You have to simplify the radical expressions [tex]\sqrt{48}[/tex] simplified is [tex]4\sqrt{3}[/tex] and [tex]\sqrt{58}[/tex] simplified is [tex]3\sqrt{6}[/tex].

Next, collect the like terms [tex]7\sqrt{3} + 4\sqrt{3} = 11\sqrt{3}[/tex] then [tex]4\sqrt{6}- 7\sqrt{6} = 7\sqrt{6}[/tex]

Then you'll put it all together which will give you an answer of  [tex]11\sqrt{3} - 7\sqrt{6}[/tex]

Answer:

The area covered by the wiper blade is 35 square inches

Step-by-step explanation:

Here, we want to calculate the area covered by the blade of the wiper

Mathematically, this is simply the area of the sector formed by the wiper on the screen

This can be calculated as follows;

theta/360 * pi * r^2

From the question theta = 50 degrees

r = the length of the wiper = 9 inches

So the area is;

50/360 * 22/7 * 9^2 = 35.35714285714286

This is closest to 35 square inches

Answer:

Are there answer choices? But when looking at it one side should just be a little bit more than double the length of one side.

Step-by-step explanation:

This is because 20 is less than half of 50

Answer:

[tex]x = \frac{-15}{2}[/tex]

Step-by-step explanation:

to answer these types of questions, we want to isolate the variable to one side of the equation

[tex]4x + 9 = 2x - 6\\4x - 2x = -6 - 9\\2x = -15\\x = \frac{-15}{2}[/tex]

Answer:

x = -7.5 :)

Step-by-step explanation:

4x + 9 = 2x - 6

-2x         -2x

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

  2x + 9 =  -6

        -9      -9

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

     2x = -15

     ---     ----

     2       2

x = -7.5  

Answer:

if u post the picture of the question or explain more detail i could help u out

Step-by-step explanation:

Answer:

x=31/14

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−4x+1=−9x−16+9x+16

−4x+1=−9x+−16+9x+16

−4x+1=(−9x+9x)+(−16+16)(Combine Like Terms)

−4x+1=0

−4x+1=0

Step 2: Subtract 1 from both sides.

−4x+1−1=0−1

−4x=−1

Step 3: Divide both sides by -4.

−4x−4=−1/-4

x=1/4

Answer:

B. perpendicular to a line at a point on the line

Step-by-step explanation:

that's how you would construct a perpendicular line to the point that is on the line

Answer:

The answer is [tex]-\frac{1}{15}[/tex]

Step-by-step explanation:

I used my calculator and inputted everything.

Answer:

17 feet

Step-by-step explanation:

Here, we want to calculate the vertical distance between Carl’s and Cameron’s feet

Since Carl is at the base of the pool, the distance between the water surface and the base of the pool will be 15 feet

We are also told they Cameron is on a diving platform 2 feet above;

So the distance between the two of them will be ;

15 feet + 2 feet = 17 feet

Answer:

All the student are members of the planetarium's frequent visitor program.

Step-by-step explanation:

Let x represent the number of student who are members of the planetarium's frequent visitor program.

And let y represent the who are not a member.

Then two equations can be formed using the provided data:

x + y = 19...(i)

11x + 13y = 209...(ii)

Multiply (i) by 13 and solve for x as follows:

13x + 13y = 247

-11x  - 13y = -209

2x = 38

x = 19

Substitute x = 19 in (i) and solve for y as follows:

x + y = 19

19 + y = 19

y = 0

Thus, all the student are members of the planetarium's frequent visitor program.

Answer:

(– 4,– 5) = –9

(– 2,– 6) = –8

Answer:

-9

Step-by-step explanation:

f(-2)=7(-2)+5

f(-2)=-14+5

f(-2)=-9

Answer:

288: least common multiple

Step-by-step explanation:

Answer:

The LCM of 96 and 72 is 1,656

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.