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2 years ago

A, B and C lie on a straight line.

Mathematics

1 answer:

horsena [70]2 years ago

6 0

Here you go, i added a bit of explanation as to why i used the numbers to help you understand the method :)

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What is the equation for the line that contains the points (-5 , 2) and (3 , 7)?

baherus [9]

Answer:

y= $\frac{5}{8} x+\frac{41}{8}$

Step-by-step explanation:

Hope this helps!

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2 years ago

What are the zeros of the quadratic function f(x)=8^2-16-15

Ipatiy [6.2K]

Answer:

put formula a square minus b square

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1 year ago

Find the consecutive positive odd integers whose product is 99

dezoksy [38]

Answer:

9 and 11

Step-by-step explanation:

So let's say that the first integer is x.

That means that the second integer is x+2, since it us the next odd number.

This problem can be easily solved with our mind the answer is 9 and 11, but I'll show you the steps to slove this.

We make an equation using these two numbers:

$(x)*(x+2)=99\\$

Now all we gotta do is solve for x:

$x^2 +2x = 99\\x^2+2x-99=0$

Now we use either splitting the middle term or quadratic formula:

$x^2+11x-9x+99=0\\x(x+11)-9(x+11)=0\\(x+11)(x-9)=0$

Now we split each terma and solve for x:

$(x-9)=0\\x=9\\(x+11)=0\\x=-11$

Now the question states <em>positive </em>so we can rule out x = -11.

Now we have the first integer x = 9,

the second integer is x+2 = 9+2 =11

So the two consecutive positive odd integers are 9 and 11

4 0

3 years ago

How to write 8,880 in expanded form

xxMikexx [17]

(8000)+(800)+(80)+(0)

7 0

3 years ago

Read 2 more answers

Play some pains 1/4 of the area of his living room walls,w, on Monday. On Tuesday, he paints twice as much as he painted on Mond

Lemur [1.5K]

Answer:

X = 1 - (1/4) - 2 * (1/4)

Step-by-step explanation:

The equation to be raised must take into account what is painted on Monday and Tuesday. First consider the wall as a unit, that is to say painting the entire wall (100%) is equivalent to 1. Therefore the equation would be the following:

Let X be the unpainted part:

X = 1 - (1/4) - (1/2)

Now, if we solve this, we have that 0.25, therefore 25% or 1/4 is left to be painted on the wall.

6 0

3 years ago