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3 years ago

Y= -2x,1 - 7 y=x^2+ 4x- 2

Mathematics

1 answer:

m_a_m_a [10]3 years ago

7 0

Answer:

if you need to find solutions ghraficaly

Step-by-step explanation:

y=y

-2x,1-7=x^2+4x-2

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What does 93.34 ÷ 18.69

uysha [10]

Answer:4.99

Step-by-step explanation:

Use a calculator

Don't equations like this take too long by hand

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3 years ago

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Pine Bluff Middle School is having its annual Spring Fling dance, which will cost $400. The student treasurer reported that the

Pavel [41]

4x + 75 > 400
( I meant to write the more than, equal to sign but I can't do that, so it shows as the more than sign, sorry about that.)

3 0

3 years ago

Points A and B have the coordinates shown below.

marshall27 [118]

Answer:

Distance AB is <em>18.79 units</em>

Step-by-step explanation:

Given two points with coordinates as:

A= (-4,7)

B= (-12, -10)

To find:

Distance AB = ?

Solution:

To find the distance between two points with given coordinates, we can use Distance formula.

Distance formula is given as:

$D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

where $(x_1, y_1)$ and $(x_2, y_2)$ are the two coordinates whose distance is to be find out.

$x_1 = -4\\y_1 = 7\\x_2 = -12\\y_2 = -10$

$AB = \sqrt{(-12-(-4))^2+(-10-7)^2}\\\Rightarrow AB = \sqrt{(-8)^2+(-17)^2}\\\Rightarrow AB = \sqrt{64+289}\\\Rightarrow AB = \sqrt{353}\\\Rightarrow \bold{AB = 18.79\ units }$

Distance AB is <em>18.79 units</em>

4 0

3 years ago

Read 2 more answers

Factor x-a in such a way that square root of x - square root of a is a factor

Taya2010 [7]

We want to factor the expression x - a, in such a way that we have one factor written as:

(√x - √a)

We will find that the factorized expression is:

(√x - √a)*(√x + √a)

Here we need to remember two things:

First, (√x)^2 = √(x^2) = x

also:

(x^2 - y^2) = (x + y)*(x - y)

Now, using the first property, we can rewrite our original expression as:

(x - a) = ( (√x)^2 - (√a)^2)

Now, using the second property, we can rewrite it as:

( (√x)^2 - (√a)^2) = (√x - √a)*(√x + √a)

Then we have:

(x - a) = (√x - √a)*(√x + √a)

Thus, we have factorized (x - a) in such a way that one of the factors is equal to (√x - √a)

If you want to learn more, you can read:

brainly.com/question/19386208

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3 years ago

Can someone help me please?

Sedaia [141]

Answer:27

Step-by-step explanation:

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3 years ago