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natima [27]
3 years ago
15

1) Does the graph show a function? Remember to use the vertical line

Mathematics
1 answer:
expeople1 [14]3 years ago
5 0

Answer:

No.

Step-by-step explanation:

If any x value (left to right) is repeated (as shown by having a line over it multiple times) the answer is not a function.

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James is kayaking. He can row 3 mph in still water. If he can travel 6 miles downstream in the same amount of time that he can t
nekit [7.7K]

Answer: the speed of the current is 0.6 mph

Step-by-step explanation:

Let x represent the speed of the current.

James is kayaking. He can row 3 mph in still water. If he can travel 6 miles downstream. Assuming he went with the current, it means that his total speed while travelling downstream is (3 + x)

Time = distance/speed

Time taken to travel downstream is

6/(3 + x)

In the same amount of time, he can travel 4 miles upstream. Assuming he went against the current, it means that his total speed while travelling downstream is (3 - x). Time taken to travel upstream is

4/(3 - x)

Since the time is the same, then

6/(3 + x) = 4/(3 - x)

Cross multiplying, it becomes

6(3 - x) = 4(3 + x)

18 - 6x = 12 + 4x

4x + 6x = 18 - 12

10x = 6

x = 6/10

x = 0.6 mph

4 0
3 years ago
"let v = r 2 with the usual addition and scalar multiplication defined by k(u1, u2) = (ku1, 0). determine which of the five axio
expeople1 [14]
Let \mathbf u\in\mathbb R^2, where

\mathbf u=(u_1,u_2)

and let k\in\mathbb R be any real constant.

Given this definition of scalar multiplication, we can see right away that there is no identity element e such that

e\mathbf u=\mathbf u

because

e\mathbf u=e(u_1,u_2)=(eu_1,0)\neq(u_1,u_2)=\mathbf u
5 0
3 years ago
A rate where the second number is a 1 is called a ________. Choose the answer that best completes the sentence.
Veronika [31]
Unit rate because unit is referring to one so for example for every unit, there are 6 apples. The unit in the case would be a box
8 0
3 years ago
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A rectangular swimming pool has a length of 50 m, a width of 25 m, and a depth of 1.75 meters. What is the volume of water neede
Ahat [919]

Answer:

2187.5 cubic meters of water

Step-by-step explanation:

Volume of rectangle = L * W * D

V = 50 * 25 * 1.75

V = 2187.5

5 0
3 years ago
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Round to the nearest cent<br><br> $1.6845
vova2212 [387]

Answer:

$1.68

Step-by-step explanation:

Remember that cents are in the hundredths place. So think of it as rounding to the nearest hundredth place. 1.6845 ---> 1.68

5 0
3 years ago
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