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lidiya [134]
3 years ago
10

Are the equations 3x - -9 and 4x - -12 equivalent? Explain. Please Help!!

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0
No because  when  you do 3*--9 = 27 and 4*--12 =48

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The actual width of the building shown in the model below is 60 feet: What is the actual height od the building shown in the mod
Murrr4er [49]

Answer:

100ft I'm not completely sure but

Step-by-step explanaon                                                                                                                    5x5=25 2x2=4 25x4=100    

8 0
3 years ago
Describe how to create a solid model of a simple coffee mug using sweep and other constructive solid geometry operations
anzhelika [568]

Answer:

Step-by-step explanation:

We are going the use the revolve constructive geometry operation

Step one:

Knowing fully well that the simple mug has a cylindrical shape, and all preliminary settings are in place, like the units may be in inches or mm.

We first need to draft out the section of the mug, this will look like an "L" shape with thickness set to whatever dimension you may have in mind.

The next in line is to create an axis using a construction line parallel to the L shape.

Then use the revolve tool to create the cylindrical shape by selecting the axis as the reference of rotation and the angle of rotation set to 360 degrees.

5 0
3 years ago
Suppose two vectors point in opposite directions. This means their cross product must be zero. True or false?
snow_tiger [21]

It is true if two vectors point in opposite directions. This means their cross product must be zero.

<h3>What is cross product?</h3>

Cross product is a vector product of two vectors in the three dimensional vector space.

In the case when the two vectors point in opposite directions so there cross product should be zero.

Impact on two points:

In the case when the two vectors point in opposite directions so there cross product should be zero.

Like

A*B = [A][B] sin

Here theta is be the angle that lies between them

So,

A*B = [A][B] sin 180

So, A*B = 0

hence, the given statement is true.

learn more about vectors here:

brainly.com/question/21797532

#SPJ4

8 0
2 years ago
Laura brought some fish; salt water ($2 each) and fresh water ($1 each). If she has 15 fish and the total was $23 - how many of
never [62]

Answer:

8 salt water

7 fresh water

Step-by-step explanation:

Let's represent salt water fish with the variable "s" and fresh water fish with the variable "f".

We can make a system of equations - one equation for the number of fish and the other for the price of the fish.

We know that the total number of fish Laura has is 15, and the total price of the fish was $23.

  • s + f = 15
  • 2s + f = 23

Solve the system of equations by subtracting the bottom equation from the top equation.

  • -s =-8
  • s = 8

Laura bought 8 salt water fish. Since the total number of fish is 15, the number of fresh water fish must be 7.

5 0
3 years ago
Read 2 more answers
colin has a plank of wood that is 2 yards long. If he plans to cut this plank into 6/7 yard pieces, how many pieces can he cut?
ELEN [110]
He can cut 2 3/7 peices
6 0
3 years ago
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