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Setler [38]
3 years ago
15

It takes Erin 4 hours to build a statue and Cathy 6 hours to do the same job. How

Mathematics
1 answer:
AlekseyPX3 years ago
4 0
I think it would take 24 hours or 10 hours

explanation: if you have 4 hours from Erin, and 6 hours from Cathy, it’ll most likely be 10 hours because you’re trying to find out the total amount. (keyword: together & how many)
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A tetrahedron is a pyramid with a triangular base. Find the volume of the tetrahedron.
melamori03 [73]

Answer:

Tetrahedron generally known as triangular pyramid consists of 4 triangular faces, 6 edges and 4 vertices. The base of the tetrahedron is a triangle. All the vertices have the same atom that is bonded to the central metal atom which lies in the centre of the tetrahedron. We take  as an example to see how the atoms actually bond in tetrahedron.  It is quite visible from the image that 4 O-atoms lies on all the 4 vertices and 1 Si-atom lie in the centre.

Step-by-step explanation:

8 0
3 years ago
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Which of the following describes the quotient of 3 and -21?
Vinil7 [7]

-21 divided by 3: -7

Your answer is -7

3 0
3 years ago
NEED HELP WITH THESE 5 QUESTIONS!!!
mart [117]

Answer:

The car travels different distances per unit of time because the portion shows a nonlinear, increasing function; -50; Both Table A and Table B do not represent functions; −2 ; {−2, 0, 1, 2, 3, 4}

Step-by-step explanation:

A linear graph of any sort is a graph that has a constant rate of change.  This graph is not linear; therefore it does not have a constant rate of change.  This means that the car travels different distances per unit of time between sections.

To find the rate of change, we find the slope between these two points.  We use the formula

m=\frac{y_2-y_1}{x_2-x_1}

Using our points, we have

m=\frac{150-0}{0-3}=\frac{150}{-3}=-50

A function is a relation in which each element of the domain (x) is mapped to only one element of the range (y).  In both of these tables, we have x-values that are mapped to two y-values; in Table A, 3 is mapped to 1 and 0; and in Table B, 5 is mapped to 2 and -2.

We use the slope formula again:

m=\frac{y_2-y_1}{x_2-x_1}

Using our points, we have

m=\frac{-7-1}{3--1}=\frac{-7-1}{3+1}=\frac{-8}{4}=-2

The domain of a graph is the set of inputs or x-values.  From our points, we have the set:

{-2, 0, 1, 2, 3, 4}

5 0
3 years ago
Read 2 more answers
Find the missing factor BBB that makes the equality true.
loris [4]

Answer:21y^4= B*7y^3

B=(21y^4)/(7y^3)

B=3y

i think this is correct

4 0
3 years ago
Help help help I need help ASAP
Leona [35]

Answer: 54.4

Step-by-step explanation:

8 0
3 years ago
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