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3 years ago

This question is hard I don't get it

Mathematics

1 answer:

Sphinxa [80]3 years ago

8 0

That is coordinates, when I got that in school I had to do up a table abt it and do a graph

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Pat uses 7 yards of string to make 3 friendship bracelets of equal length. Each bracelet uses between _____________.

gayaneshka [121]

C. It would be around 2.33 yards per bracelet.

8 0

3 years ago

Write a function describing the relationship of the given variables.

Oliga [24]

Answer:

The function describing the relationship of V and t is V = 3t²

Step-by-step explanation:

* Lets explain the meaning of direct variation

- The direct variation is a mathematical relationship between two

variables that can be expressed by an equation in which one

variable is equal to a constant times the other

- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the

constant of variation

* Now lets solve the problem

# V is varies directly with the square of t

- Change the statement above to a mathematical relation

∴ V ∝ t²

- Chang the relation to a function by using a constant k

∴ V = kt²

- To find the value of the constant of variation k substitute V and t

by the given values

∵ t = 6 when V = 108

∵ V = kt²

∴ 108 = k(6)² ⇒ simplify the power 2

∴ 108 = 36k ⇒ divide both sides by 36 to find the value of k

∴ 3 = k

- The value of the constant of variation is 3

∴ The function describing the relationship of V and t is V = 3t²

3 0

3 years ago

There are 870 people attending a conference.if 8.9% were canda how many people is this

zhuklara [117]

Answer:

77.43

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

I’m slow , can i get help on this asap please ?

makkiz [27]

140°
Pentagons add up to 540° so if you add all the degrees you get 400° and if subtracted from 540° you get 140°

5 0

3 years ago

I need help please I will greatly appreciate it

Nataly_w [17]

Answer:

B. Square

Step-by-step explanation:

When in doubt, it can help to plot the points on a graph.

By looking at the coordinate values, you see that the first two points have the same y-coordinate (0) and the other two points have the same y-coordinate (-4). These points are on horizontal lines that are 4 units apart.

Looking at the x-coordinates, you see that one pair of points has x-coordinates 4, and the other pair has x-coordinates 8. That is, these pairs of points are on vertical lines that are 4 units apart.

Vertical and horizontal lines are at right angles to each other. That means the figure must be a rectangle or square. The lengths of the sides are all 4 units, so the figure is a square.

3 0

2 years ago