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3 years ago

Which statements are true?

Mathematics

1 answer:

djyliett [7]3 years ago

3 0

Answer:

All Triangles are closed figure polygons that have three straight sides

Step-by-step explanation:

All 2D shapes are plane figures so this one is false. Three right angles are greater than 180 so this is fake. Polygon and closed figures are shapes with three or more closed sides. And triangles have straight sides.

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PLEASE HELP, URGENT!

Andrew [12]

You would need a reflection to create the same shape because a reflection is a flip meaning that the one in the front is showing the reflection

5 0

3 years ago

3x+4y=5

KonstantinChe [14]

3x + 4y = 5
2x - 5y = 8

To answer this question, we need to put both of these equations into Slope-Intercept form, or in other words, solve for y.

3x + 4y = 5 Subtract 3x from both sides
4y = -3x + 5 Divide both sides by 4
y = $-\frac{3}{4}$ + $\frac{5}{4}$

2x - 5y = 8 Subtract 2x from both sides
-5y = -2x + 8 Divide both sides by -5
y = $\frac{2}{5}$ - $\frac{8}{5}$

When you look at the two equations, you can see that their slopes are completely different, so they aren't parallel, or inconsistent. Since $\frac{2}{5}$ is not the same as<span> $-\frac{3}{4}$ , they aren't the same line, or dependent. So, the only option left is that they are consistent and independent.</span>

4 0

3 years ago

Peak Industries saw a 20% increase in activity levels over the fourth quarter. Which of the following changes should the firm ex

Nutka1998 [239]

Answer:

B : a 20% increase in variable costs

Step-by-step explanation:

Here the industry is seeing a 20% increase in activity levels over the fourth quarter. Since, there has been an increase in activity levels the fixed cost would remain the same but the variable cost being variable would increase with increase in production activity in same proportion as the increase in production.

B : a 20% increase in variable costs

8 0

4 years ago

You are in a traffic jam that is 7/8 mile long. The cars are in one lane bumper to bumper. The average length of a car is 0.003

KengaRu [80]

Answer:

Step-by-step explanation:

The average length of each car is

0.003 mile. The length of each car includes the bumper. The cars are in one lane. This means all the cars can be assumed to form a long line of cars that is uniform in length. This length is divided into equal lengths if cars.

The length of the traffic jam which is also the length of the line of is 7/8 = 0.875 mile long.

The number of cars would be in the that would be in the traffic jam will be length of the traffic jam/ length of each car. It becomes

0.875/0.003 = 292 cars

7 0

4 years ago

Please help thank you please

erastova [34]

Answer:

Step-by-step explanation:

The map is <em>not a function</em> if any value of input maps to more than one value of output. We see that is the case in map D. The other three maps show functional relations.

3 mapping diagrams represent functions

7 0

2 years ago