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avanturin [10]
2 years ago
13

Does anyone know how to solve this The answer is B but can anyone explain why

Mathematics
1 answer:
Lana71 [14]2 years ago
6 0

Answer:

B. (0,-1)

Step-by-step explanation:

see.. i'm not rude.... :/

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liq [111]
440...marked down by 30% means u pay 70%
70% of 440 = 0.70(440) = 308

308 ..marked down by 10% means u pay 90%
90% of 308 = 0.90(308) = 277.20 <== price after markdowns
8 0
3 years ago
In 90 minutes, John can run 30 laps around the track. Determine the number of laps he can run per hour.
GrogVix [38]

Answer:

in 90 minutes he ran 30 laps

there is 60 minutes in a hour so the fraction would be

2/3 so we have to multiply this by 30

2/3*30=20

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Hope This Helps!!!

4 0
3 years ago
Which of the following is the graph of y = cosine (2 (x + pi))?
bonufazy [111]
On a coordinate plane, a curve crosses the y- axis at (0,1). It has a minimum of negative 1 and a maximum of 1. It goes through 2 cycle at 2 pi.

4 0
3 years ago
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The graph shows two lines, A and B.
EastWind [94]

Answer:


Part A: one solution:

Part B: x = 3, y = 4.


Explanation:


1) Part A: how many solutions does the pair of equations for lines A and B have?


The solution of a system of equations in a graph is given by the intersetion of the curves that represent the equations.


In this case, there are two straight lines, which intersect in one and only one point.


Hence, the system has one solution.


2) Part B: what is the solution to the equations of lines A and B?


The solution is the pair of coordinates of the intersection point. It is (3, 4).


Therefore, the solution is x = 3, y = 4.

8 0
3 years ago
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SOVA2 [1]
The formula of pyramid:
v =  \frac{1}{3} ah
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We can then put the given information into the formula:

176 = (1/3)(3x × x)(11)

(176 × 3) / 11 = 3x^2

3x^2 = 48

x^2 = 48/3

x = _/16

x = 4
3 0
3 years ago
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