What is the surface area of this solid?

Answer:

11.25

Step-by-step explanation:

8x+11=180-79

8x+11=101

8x=90

x=11.25

By angle sum property the value of x in the expression (2 x + 10) +  (6 x + 1) +79 =180  is 11.25

The angle sum property of a triangle states that the sum of the interior angles of a triangle is 180 degrees.

2 horizontal and parallel lines are intersected by 2 diagonal lines to form a triangle with exterior angles.

The top angle of the triangle is (2 x + 10) degrees. The bottom right angle of the triangle is 79 degrees.

The exterior angle to the bottom left angle is (6 x + 1) degrees.

By angle sum property

(2 x + 10) +  (6 x + 1) +79 =180

8x+11 + 79 =180

8x+11=180-79

8x+11 =101

8x = 90

x = 11.25

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Answer:

Sorry. I cannot really the points and graphs clearly.

I hope I helped you! If my answer is correct, please mark me brainiest. Thanks!

Answer:

C

Step-by-step explanation:

The central angle is equal to the measure of the arc that subtends it, thus

3x + 18 = 147 → C

Answer: C.) 3x + 18=147

hoped this helped

:)

Answer:

[tex]\sqrt{2} a[/tex]

Step-by-step explanation:

The distance between point (x1,y1) and (x2,y2) on a coordinate plane is given by expression [tex]\sqrt{(x1-x2)^2+(y1-y2)^2}[/tex]

In the problem given coordinate points are

(0, a) and (a, 0).

Thus, distance between these points are given by

[tex]distance = \sqrt{(x1-x2)^2+(y1-y2)^2}\\=>distance = \sqrt{(0-a)^2+(a-0)^2}\\=>distance = \sqrt{(a)^2+(a)^2}\\\\=>distance = \sqrt{2a^2}\\=>distance = \sqrt{2} a[/tex]

Thus , expression [tex]\sqrt{2} a[/tex] gives the distance between point (0, a) and point (a, 0) on a coordinate grid.

Answer:

A) √2a^2

Step-by-step explanation:

I just took the quiz on edge

Answer:

960, 160 for each face / base

Step-by-step explanation:

Answer:

9sqrt(2) ft or 12.73 ft

Step-by-step explanation:

A = L^2

sqrt(162) = 9sqrt(2)

The diagonal of a square is equal to the side length.

Answer:

$5

Step-by-step explanation:

The bill was $15 extra this month so 15 divided by 3 is 5.

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

Answer:

-2 inches

Step-by-step explanation:

Change in height: -10 inches

Days over which change noticed: 5 days

Change per day: -10÷5= -2 inches

The snowman shrank -2 inches per day.

Answer:. GCF of first two terms is 7r^2.

GCF for last two terms is 2

Step-by-step explanation: GCF means the largest number that the terms can be divided by evenly.

7 and 14 are both divisible by 7. The factors of those terms are (7r^2)(r +2).

r^3 means r × r × r. r^2 means r × r so r^2 is a factor of r^3

2r and 4 are both divisible by 2. The factors of those terms are (2)(r +2)

Answer:

your

Step-by-step explanation:

welcome

Answer:

Q3= 66.5

Step-by-step explanation:

median= 61.5

Q1= 56.5

Q3= 66.5

(65+68)/2= 66.5

Answer:

The answer is is

C. $1,627.56

Step-by-step explanation:

The question is incomplete,

Kindly find attached the diagram of the poll for the dimension for your reference.

we need to first calculate the area of the pool.

Let's begin by calculating the area of the rectangular shape

A= length x width

A= 25*15

A=375ft²

Secondly the two semi circles can be solved for as a whole circle

Area of circle = πr²

Radius r= diameter/2= 15/2= 7.5ft

Area = 3.142*7.5²

A= 3.142*56.25

A= 176.7375ft²

Total surface area pool =

176.7375+375= 551.7ft²

Given that a square foot is $2.95

Hence the cost of covering the pool is 551.7*2.95=$1,627.515

Answer:

1. x = 9.75,

2. x = 36,

3. x = 12

Step-by-step explanation:

See attachment below;

Answer:

mLA=133 degrees

Step-by-step explanation:

4x+5+x+15=180

5x+20=180

5x=160

x=32

4(32)+5=128+5=133

Answer:

Step-by-step explanation:

-4a-4ab-3

Answer:

-4ab+-4a+-3

Step-by-step explanation:

(5ab-4a-8)-(9ab-5)

distribute the negative sign

=5ab-4a-8+-1(9ab)+(-1)(-5)

=5ab+-4a+-8+-9ab+5

combine like terms

=(5ab+-9ab)+(-4a)+(-8+5)

=-4ab+-4a+-3

Answer:x=2

Step-by-step explanation: 2x-4=0

2x-4=0

+4 +4

2x=4

2x/2=4/2

X=2

Answer:

The numbers are 4 and 1

Step-by-step explanation:

Let x and y be the numbers

Quotient is division

x/y = 4

x-y =3

Taking the first equation and multiplying each side by y

x = 4y

Replacing into the second equation

4y -y = 3

3y = 3

Divide by 3

3y/3 = 3/3

y=1

Now we can find x

x -y =3

x-1 =3

Add 1 to each side

x= 4

Answer:

He made a math error

Step-by-step explanation:

6 ounces of pistachios cost $7.50

take 7.50 / 6=1.25 per ounce  ( not .80 per ounce)

Then 1.26 * 16 = 20.00 for 16 ounces

Answer: B

Step-by-step explanation: The price per ounce should have been $1.25 per ounce.

 I hope this helps! °ω°

Answer:

8[tex]r^{3}[/tex] - 6r

Step-by-step explanation:

2r(4r^2-3)

= 8[tex]r^{3}[/tex] - 6r

Answer:

A = 78.5 cm²

Step-by-step explanation:

Area of Circle = πr²

A = (3.14)(5)²

A = (3.14)(25)

A = 78.5 cm²

The area formula of a circle is r² x π.

With that being said, we can now substitute in our radius value.

(5)² x π

From there, we can find the square root of the radius.

(25) x π

And then we can multiply by pi to solve.

78.539816..

Finally, we'll round to the nearest tenth to get our answer.

78.5

Therefore, the area of the circle is 78.5 cm.

Hope this helped! :)

Answer:

9.81*10 (you have to add that tiny six next to the 0)

Step-by-step explanation:

Answer:

9.81 x 10^6

Answer:

7 and 1/2 miles per minute. Just divide 2 by 15.

Answer:

1

Step-by-step explanation:

Plug in -2.

f(x) = -6+7

f(x) = 1

The value of the given function when x is -2 is 1.

A function is defined as a relation between a set of inputs having one output each.

Given a function,  f(x) = 3x + 7

Put x = -2.

f(-2) = -6+7

f(-2) = 1

Hence, The value of the given function when x is -2 is 1.

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Answer:

.2 chance of going to the right store

Step-by-step explanation:

Five stores, and she is to meet a friend at one. One store is the right one so it is 1 out of 5, or 1/5. This equals 20%

In decimal it is a .2 chance of Nadine going to the right store

Hope this helps!

Answer:

The (3, 3) one

Step-by-step explanation:

i did the exam and got it right ;)

The vectors that have the same image for Hugo and Nemo are [3, 3].

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

To find the reflection of a vector v across the line y = -x, we can use the formula:

reflection(v) = R×v × R

where R is the reflection matrix given by:

R = [0 1]

[1 0]

To find the rotation of a vector v by 180° counterclockwise about the origin, we can use the formula:

rotation(v) = Rθ × v

where Rθ is the rotation matrix given by:

Rθ = [-1 0]

[0 -1]

Let's apply these transformations to each vector and see which ones have the same image for both Hugo and Nemo:

Reflection(d) = R × d × R = [0 1] × [3, 3] × [0 1] = [3, 3]

Rotation(d) = Rθ × d = [-3, -3]

These two vectors are equal.

Therefore, the vectors that have the same image for Hugo and Nemo are [3, 3].

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Answer:

Applying the binomial theorem

[tex]{\displaystyle (x+a)^{n}=\sum _{k=0}^{n}{n \choose k}x^{n-k}a^{k}}[/tex]

Here we have x = -[tex]\sqrt{2}[/tex], n = 8,

=> 4th term (k = 3) would be:

[tex]{8 \choose 3}x^{8-3}a^{3}} = {8 \choose 3}(-\sqrt{2})^{5}a^{3}} = -224a^{3}\sqrt{2}[/tex]

Hope this helps!

:)

Answer:

A

Step-by-step explanation: