I NEED HELP ASAP Use Euler’s Formula to find the missing number ?
Faces:21
Vertices:14
Edges:?
A.34 B.32 C.33 D.36

Answers

Answer 1
Answer: Euler's formula is given by:
 C + V = A + 2
 Where,
 C: number of faces
 V: number of vertices
 A: number of edges.
 Clearing A we have:
 A = C + V-2
 Substituting values:
 A = 21 + 14-2
 A = 33
 Answer:
 
the missing number is:
 
C.33

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What's the diameter of a circle with a circumference of 48 millimeters

Answers

since we are given circumference, we think the formula for the circumference, which is 2(pi)r or (pi)d where r and d is the radius and diameter respectively.  the smarter formula of the 2 is (pi)d because it's d we want to find.  setting up our equation:
circumference = (pi)d
48 = (pi)d
dividing both sides by pi gives:
d = 15.29 millimeters

let me know if you have any questions!

200 is 10 times as much as

Answers

Answer:

200 is 10 times as much as 20

Step-by-step explanation:

Let the number be y

as per the condition 200 is 10 times as much as y.

Solve for y:

10 times as much as x represents as 10 * y =10y

Then;

200 = 10y     ......[1]

Division property of equality states that you divide the same number to both sides of an equation.

Divide by 10 to both sides in equation [1];

(200)/(10)=(10y)/(10)

Simplify:

y= 20

Therefore, 200 is 10 times as much as 20.



20 since 20 x 10= 200


Use the law of sines to find the length of side c

Answers

Look at the picture.

The law os sine:

(a)/(\sin A)=(b)/(\sin B)=(c)/(\sin C)

We have

m\angle A=46.7^o\n\nm\angle C=48^o\n\na=44\n\nc=?

Substitute:

(c)/(\sin48^o)=(44)/(\sin46.7^o)\n\n\boxed{c=44.93}\to\boxed{A.}

Answer:

A!

Step-by-step explanation:

ABCD is a square and a semicircle O has a radius of 6. WHAT is the area of this figure?

Answers

I'm assuming the semi circle lies on one of the sides of the square. that means with a radius of 6 the diameter/ side length of the square is 12. the area of a square is length times width so 12×12=144. the area is 144 units^2

What is the area of the figure? A.
square inches

B.
square inches

C.
square inches

D.
square inches

Answers

Given:
Length = 20 inches
Width = 16 inches
Missing = 8 inches

There are two shapes in the figure. A rectangle and a square.

We need to get the area of the rectangle and the area of the square. Then, subtract the area of the square from the area of the rectangle to get the total area of the figure.

Area of the rectangle = length x width
                                  = 20 in x 16 in
Area of the rectangle = 320 in²

Area of the square = s² = 8² = 64 in²

Area of the figure = 320 in² - 64 in² = 256 in²

PLEASE HELP Which pairs are solutions to the equation?

3xy + 9 = 33

A.
(8, 1) and (2, 6)

B.
(1, 11) and (2, 6)

C.
(1, 8) and (8, 1)

D.
(1, 8) and (1, 11)

Answers


3xy+9=33

A. 3*8*1+9=33; 3*2*6+9=45

(A. is not your answer)

B. 3*1*11+9=42; 3*2*6+9=45

(B. is not your answer)

C. 3*1*8+9=33; 3*8*1+9=33

(c. is your answer)

D. 3*1*8+9=33; 3*1*11+9=42

Your final answer, If that is confusing, is C. (1,8) and (8,1)