Are the following equations (1,2,3) one solution, infinitely many solutions, or no solution for each one? Please and Thank You 1.


y-3x=5

y=3x+5


2.


y=6x+2

y=6x-2


3.


y=5x+9

y=3x-2

Answers

Answer 1
Answer:

1.when you change the first equation to the form it is the same as the second which means infinite solutions

y-3x=5 --->y=3x+5 then set them equal to find many possible solutions

2.this is no solution because the slopes are the same when you combine these equation the 2's cancel out and you ar left with y=12x which cannot be solved

3.when everything is different there is one solution


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Any help is appreciated. Thanks ^-^

Answers

(x)^2 = (10)^2 + (7)^2
(x)^2 = 100+49
(x)^2 = 149
so , x = root(149)
the answer is A

Determine the slope and y-intercept of the graph:
2x + 5y = 10

Answers

Slope is -2/5 and y-intercept is 2

Step-by-step explanation:

  • Step 1: Write the equation in slope-intercept form y = mx + b

2x + 5y = 10

5y = -2x + 10

y = -2/5 x + 10/5

y = -2/5 x + 2

  • Step 2: Find the slope and y-intercept from the equation.

Slope, m = -2/5

y-intercept, b = 2

The mean of six numbers is 41. If one number is removed, the mean of the five numbers is 46. Find the unknown number.

Answers

mean of 6 numbers is 41  means
(x+y+z+t+a+b)/6=41
(x+5morenumbers)/6=41

if 1 is removed (say x)
mean iof 5 numbers is 46
(5morenumbers)/5=46

multiply first equaiton by 6 and second eqiaton by 5 to clear fractions
x+5morenumbers=246
5morenumbers=230

sub 230 for 5morenumbers in first equaiton
x+230=246
minus 230 both sides
x=16


the unknown is 16

A diver begins at 140 feet below sea level. She descends at a steady rate of 7 feet per minute for 4.5 minutes. Then, she ascends 112.2 feet. What is her current depth?

Answers

-45.3 feet depth.

She descends at a steady rate of 7 feet per minute for 4.5 minutes. Then, she ascends 112.2 feet.

While minus sign shows the descent under the water with the water surface as a starting point. Initial depth of diver under the water

The diver descends 5 feet per minute for 3.5 minutes. Now add all the terms below as a numerical expression.

Current Depth of Diver after he descends 5 feet for 3.5 minutes and ascends 122.2 feet after. By taking the initial depth of the diver from which we add or subtract the changes made when he ascends or descends into the water to get the current depth.

Where do deep currents occur?

Thus, deep currents generally occur in the higher latitude regions of the Earth, such as North Atlantic Deep Water and Antarctic Bottom Water, and from these frigid poleward regions, the deep currents flow at a relatively slow pace towards the equator.

Learn more about the current depth at

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Answer: The answer is -45.3 feet depth.

Step-by-step explanation:  While minus sign shows the descend under the water with water surface as starting point. Initial depth of diver under the water

Diver descends 5 feet per minute for 3.5 minutes. Now adding all the terms a below as a numerical expression.

Current Depth of Diver after he descends 5 feet for 3.5 minutes and ascend 122.2 feet after. By taking the initial depth of diver from which we add or subtract the changes made when he ascends or descends in the water to get the current depth.

You can divide any parallelogram into two matching triangles. How is this useful?i need to know this answer right now 
please

Answers

Well, if you find the area of the two identical triangles I suppose you could add them together to find the area of the parallelogram

I am a polyhedron.I am a prism.
my two bases are hexagon.
my two other faces are rectangles.

Answers

It is a Hexagonal prism