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3 years ago

Is (1,-4) a solution to the equation y=-2x

2 answers:

7 0

No, the solution to the equation would have to have an x value, the first term in the parentheses, have the value of the y value, the second term in the parentheses.

PolarNik [594]3 years ago

3 0

To figure this out, plug (1, -4) into the equation y=-2x. 1 is the x value, so we plug it into the x. -4 is the y value, so we plug it into the y spot. In the end we get -4=-2(1). Is this true? No, it isn't. Therefore it is not an answer.

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a piece of art is in the shape of an equilateral triangle with side of 6 inches what is the area of the art

Nitella [24]

Area=1/2 times base times height
for equilateral triangle, if base is x, then height is (x√3)/2

so if base is 6 then height is (6√3)/2=3√3

area is 1/2 times 6 times3√3=3 times 3√3=9√3 sqare inches

8 0

3 years ago

2−1/2n=3n+16 n=3n+16

romanna [79]

Answer:

The answer is

n=5 3/5

Step-by-step explanation:

first collect the like terms:

2-1/2n=3n+16

then...

3n-1/2=16-2

==2 1/2n = 14

===n=5 3/5

3 0

3 years ago

Solve 6 >b÷ (-3). Graph the solution. The solution is..

olchik [2.2K]

Answer:

b>-18

Step-by-step explanation:

inequality form:b>-18

interval notation:(-18,inf.)

8 0

2 years ago

I dont understand this!

DaniilM [7]

Answer:perimeter

Step-by-step explanation:20+20+4=44 and u multiply 3/5x times 2 it equals 6/10x+44

4 0

3 years ago

The functions below represent the amounts of water released from two reservoirs over x weeks:

solong [7]

Answer:

h(x) = -2x^2 -x +3
Reservoir A releases the same amount of water as Reservoir B over 1 week

Step-by-step explanation:

Given:

f(x) = x^2 -7x +5

g(x) = 3x^2 -6x +2

h(x) = f(x) -g(x)

Find:

h(x)

h(1)

Solution:

The expression for h(x) is found by evaluating its definition:

h(x) = (x^2 -7x +5) -(3x^2 -6x +2)

h(x) = x^2(1 -3) +x(-7 -(-6)) +(5 -2)

h(x) = -2x^2 -x +3

Then h(1) is found by substituting 1 for x:

h(1) = -2(1^2) -(1) +3 = -2 -1 +3

h(1) = 0 . . . . difference in release amounts after 1 week is 0

The true statements are ...

h(x) = -2x^2 -x +3
Reservoir A releases the same amount of water as Reservoir B over 1 week

6 0

3 years ago