suppose that you're building a shed and me to pour concrete slab to support it. You know that the slab will be 15 feet wide, 10 feet long, 6 inches deep. concrete is usually sold by the cubic yard. How many cubic yards of concrete will you need for the slab?

Answers

Answer 1

Answer: convert all to one unit - I'm choosing feet
15 x 10 x 0.5 = 15 x 5 = 75 feet
1 cubic yard = 1 yard x 1 yard x 1 yard = 3 ft x 3 ft x 3 ft = 27 feet?

75/27 = 2.77777778 cubic yards (I think)

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(-1,2) and (-4,8)Find the slope of the line that contains the point1. 22. 6/53. -24. -6/5
Which of the following statements are true? Check all that apply For all real numbers a and b, a b b+ a For all real numbers a and b, ab ba. For all real numbers a and b, a b a For all real numbers a and b For all real numbers a, and c, (a b) c a (b c) b For all real numbers a, b and c, (a b) c a (b-c For all real numbers a, b and c, a b c) ab ac

Which of the following best describes the base of a pyramid?A. It can be any polygon.
B. It is a circle.
C. It must be a square.
D. It is a triangle.

Answers

Answer:

A. It can be any polygon.

Step-by-step explanation:

A pyramid is a polyhedron with a base, which can be any polygon, but is most often a square.

When the base is a triangle, the pyramid has a total of four faces.

The famous Egyptian pyramids have square bases and four triangular faces. As the number of sides increases in a pyramid, it begins to look like a cone.

So, we can say A and C are both correct. But we will go with A as a square will also be considered in it.

2.The price of a gallon of gasoline is $3.60. The price when Ryan's mother started driving was 4 of the current price. What was
the price of gasoline when Ryan's mother started driving?
OA. $1.40
OB. $3.85
OC. $3.35
OD. $0.90

Answers

OD. $0.90

3.60/4 = price when Ryan’s mother started driving

3.6/4= $0.90

Answer:

OD. $0.90

3.60/4 = price when Ryan’s mother started driving

3.6/4= $0.90

Step-by-step explanation:

1. Solve through substitution
y = -3.x + 4. y = 4x – 10
Enter your math answer

Answers

Answer:

y= -2 and x= 2.

Step-by-step explanation:

(y=-3x+4)4

(y=4x-10)3

make the x's cancel out.

you get 7y=-14.

y=-2.

-2=-3x+4

x=2

On the graph of the equation 5x – 2y = 20, what is the value of the y-intercept?

Answers

The slope-intercept form: y = mx + b

m - the slope
b - the y-intercept

5x - 2y = 20 |subtract 5x from both sides

-2y = -5x + 20 |divide both sides by (-2)

y = 2.5x - 10

Answer: The y-intercept b = -10 ⇒ (0;-10)

If lines ab and cd are parallel, which of the following statements are true? Check all that apply.

A. Ab and cd are skew lines
B. Ab and cd are perpendicular
C. Ab and cd intersect at a single point
D. Ab ll cd
E. Ab is perpendicular to cd
F. Ab and cd are coplanar

Answers

The correct answers are:
(D) ab ll cd
(F) ab and cd are coplanar

Explanation:
The symbol for parallel is " ll ". Therefore, if we translate the given sentence, ab and cd are parallel, into the Mathematical terms, we can write it as:

ab ll cd (Option D)

Where ab = line
cd = line

Furthermore, the lines ab and cd are coplanar because they form the plane. In other words, you can say that the lines ab and cd lie on the same plane. (Option F)

Hence the correct answers are:
(D) ab ll cd
(F) ab and cd are coplanar

If lines ab and cd are parallel, the following statements that are true are letters D, F.
D. Ab ll cd
F. Ab and cd are coplanar
The rest of the choices do not answer the question above.

Which expression is equivalent to 8?-48 ÷ 6
48 ÷ (-6)
48 ÷ 6
-48 ÷ (-6)

Answers

Expression 3,
because 6 and 8 are factors of 48. Since positive 6 & 8 are the two numbers of choice, the product will be positive. My answer is reasonable because if you were to multiply positive 8 and 6 you will get positive 48.

Answer:

its 48 ÷ 6 and -48 ÷ (-6)

Step-by-step explanation:

Trust me its correct

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