3 years ago

What is thisssssssss plssssssss

Mathematics

1 answer:

RSB [31]3 years ago

6 0

Answer:

I think u should do 2.5 ÷n=r

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% is the correct percentage conversion for 2/5

denis-greek [22]

Answer:

%40

Step-by-step explanation:

Step 1: Divide 2/5

2/5 = 0.4

Step 2: Convert to Decimal by multiplying by 100

0.4 * 100 = %40

Answer: %40

6 0

3 years ago

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Solve using quadratic formula x squared -2x-8=0

Aleks [24]

$x= \frac{-b\pm \sqrt{b^2-4ac} }{2a}$ for the equation $ax^2+bx+c$

Your question is $x^2-2x-8=0$

So $a=1 \\b=-2\\c=-8$

So plug in your numbers:
$x= \frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-8)} }{2(1)}$

Simplify:
$x= \frac{2\pm \sqrt{4-(-32)} }{2}$

Simplify a little more:
$\frac{2\pm6}{2}$

So our answer is
$x= \frac{2+ 6 }{2} = 4\\x= \frac{2- 6 }{2}=-2$

So $x=4, x=-2$

8 0

4 years ago

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Whats is the slope of the line that passes through the points (3,-1) and (-2,-5)

Alchen [17]

You just subtract the x's and subtract the y's. So it will be 3- -2 and -1 - -5. Subtracting a negative is like adding a positive so your answer will be 5/4.

8 0

3 years ago

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URGENT!!!!! Will give brainliest to the right answer

inessss [21]

Answer:

center b and scale 3 is the correct option

3 0

3 years ago

Use what you know about signed numbers to complete these square box problems

morpeh [17]

Answer:

We need to know what the boxes are, you didnt include numbers so we cant help you :) Have a great day and i hope you figure the problem out with the help with our Brainly workers! -Conner

Step-by-step explanation:

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3 years ago