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3 years ago

Select ALL ordered pairs that are located in the first quadrant of the coordinate plane.

Mathematics

1 answer:

SpyIntel [72]3 years ago

6 0

Answer:

C, D

Step-by-step explanation:

in the first coordinate plane, both numbers in a coordinate must be positive

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My computer runs 250 frames per 2 seconds. How many frames would run in 3.5 minutes?

balandron [24]

Answer:437.5

Step-by-step explanation:3.5 times 250=875 divided by2 =437.5

7 0

2 years ago

Multiply: (3x - 5)(-x + 4)

insens350 [35]

Answer:

-3x²+17x-20

Step-by-step explanation:

When you apply the distributive property (which you did correctly), you simply multiply each number or variable in which you have to distribute it to (which again you wrote correctly) and then you add them all together.

(3x)(-x)=-3x²

(3x)(4)=12x

(-5)(-x)=5x

(-5)(4)=-20

Add those and you will get your answer. Hope this helped :)

3 0

2 years ago

Read 2 more answers

a parabola contains the points (0,0),(-1,-2) and (1,6). what is the equation of the parabola in standard form?

tensa zangetsu [6.8K]

Let the equation be:

y = ax^2 + bx + c.

Then, substitue the three points into the equation.

First point: 0 = a0^2 + b0 + c.

So c = 0.

Second point: -2 = a(-1)^2 + b(-1) + c.

So a - b + c = -2.

Third point: 6 = a*1^2 + b*1 + c.

So a + b + c = 6.

We know that c=0 already, so we substitute c=0 into the last two equations and we would get:

a - b = -2

a + b = 6

We add the two equations and we get:

2a = 4

a = 2

Then, we substitute a=2 into a-b=-2 and we get:

-b = -4

b = 4

Now we know a = 2, b = 4, and c = 0

Then, the equation of the parabola would be:

2x^2 + 4x

5 0

2 years ago

I need to know how to do the answer and why that’s the anwer

Pavel [41]

Ok so the answer is
$4 {x}^{2}$

so we multiply numbers that have the same variable

$2 {x}^{3} \: \: \times {2x}^{ - 1} \\ \\$
multiply 2 x 2

$2 \times 2 = 4$
then multiply the exponents

$x ^{3} \times x ^{ - 1}$
multipling like this will look like addition.
${x}^{3} \times {x}^{ - 1} = {x}^{2}$
so in other words you could do it like this too
${x}^{3} + {x}^{ - 1} = {x}^{2}$
now add the exponent with 4
$4 + {x}^{2} = 4x ^{2}$

now for the last part
${y}^{3} + {y}^{ - 3} = 0$
because -3 and 3 added together make 0
$0 + 4 {x}^{2} = 4 {x}^{2}$
I hope this help(it looks complicated but it's very easy and I hope I helped you out)

6 0

3 years ago

Under his cell phone plan, Henry pays a flat cost of $63.50 per month and $5 per gigabyte. He wants to keep his bill at $77.50 p

Murrr4er [49]

Answer:

Step-by-step explanation:

77.50 - 63.50 = 14

per gigabyte $5 + 5 =10

so answer is 2

3 0

2 years ago