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3 years ago

7

What is 5x+7y+8z-2x+3y+5-z

1 answer:

DochEvi [55]3 years ago

4 0

$5x+7y+8z-2x+3y+5-z = 3x+10y+7z+5$

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What is chlorination?

Tanzania [10]

Answer:

Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water. This method is used to kill certain bacteria and other microbes in tap water as chlorine is highly toxic to those microorganisms. Answer via google.

Step-by-step explanation:

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3 years ago

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Find the distance between points M and N.<br>M= (3,-2)<br>N= (5,-6)

MaRussiya [10]

Answer:

12

Step-by-step explanation:

The formula for distance between points is $\sqrt{(x.2-x.1)^{2} +(y.2-y.1)^{2}$

So when you inserts the coordinates in this formula, it would be $\sqrt{(-2-3)^2+(-6-5)^2}$

$\sqrt{(-5)^2+(-11)^2}$

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2 years ago

June was thinking of a number, she halves it and gets an answer of 24.3. What was the original number?

ehidna [41]

X:2=24.3
x=24.3 • 2
x=48.6
Answer is 48.6

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2 years ago

Which of the following are the coordinates of the vertex of y = −x2 + 2x + 1? (2, 1) (1, –2) (1, 2) (–2, 1)

IceJOKER [234]

Answer:

C

Step-by-step explanation:

We want to determine the vertex of the quadratic equation:

$\displaystyle y = -x^2 + 2x + 1$

Recall that the vertex is given by the formulas:

$\displaystyle \text{Vertex} = \left(-\frac{b}{2a}, f\left(-\frac{b}{2a}\right)\right)$

In this case, <em>a</em> = -1, <em>b</em> = 2, and <em>c</em> = 1.

Determine the <em>x-</em>coordinate of the vertex:

$\displaystyle x = -\frac{(2)}{2(-1)} = 1$

To determine the <em>y-</em>coordinate, evaluate the function at <em>x</em> = 1:

$\displaystyle \begin{aligned} y(1)&= -(1)^2 + 2(1) + 1 \\ &= 2\end{aligned}$

In conclusion, the vertex of the quadratic equation is (1, 2).

Hence, our answer is C.

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2 years ago

Simplify to create an equivalent expression.<br> 2-4(5p+1)}2−4(5p+1)

ZanzabumX [31]

Answer:

-8-60p

Step-by-step explanation:

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2 years ago

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