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ladessa [460]
3 years ago
9

What's this? I don't know

Mathematics
1 answer:
AveGali [126]3 years ago
3 0

Answer:

it's a quadratic formula

Step-by-step explanation:

in the formula, substitute the value of <u>a as 1, b as 2 and c as -8</u>

then, you will get ur answer

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Let x represent an unknown number. Write an equation that represents the given statement. Then find the value of the unknown num
LenaWriter [7]

Hey there! I'm happy to help!

If something is 11 less, we are subtracting 11.

-11

We have 11 less than seven times a number x.

7x-11

The word is means equals.

7x-11=-4

Now we need to isolate the x. We add 11 to both sides.

7x=7

We divide both sides by 7.

x=1.

Have a wonderful day! :D

7 0
3 years ago
Here is an expression<br> 3x2t <br> if the value of the expression is 96, what is t?
ICE Princess25 [194]
96 is= 6 that’s the answerrrrr
3 0
3 years ago
Ben flipped a coin and got heads 7/15 of the time. If he flipped the coin 45 more times, how many times would you expect Ben to
DanielleElmas [232]

Answer:

22 times

Step-by-step explanation:

just to be clear i don't know if thats right because you can't actually expect which way a coin is going to flip so its all up to chance but anyways...

1. 7 is about half of 15 and 22 is about half of 45 (you could also do 23 or 22.5 if you want to be exact)

7 0
3 years ago
Read 2 more answers
What is a ratio? i am confused
xxMikexx [17]
A ratio is comparison between two number such as

I have three dogs and two cats the ratio of cats to dogs is 2:3 or what is the ratio of cats to total pets which is 2;5
8 0
3 years ago
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Which relationship between x and y in the equation shows a proportional relationship
balandron [24]

Answer:

The equation y = 3x shows a proportional relationship between x and y

Step-by-step explanation:

  • <em>The proportional relationship is represented graphically by a line passes through the </em><em>origin point </em>
  • <em>The equation of the proportional relationship is </em><em>y = m x</em>

Let us solve the question

Substitute x by 0 to find the value of y, if y = 0, then the line represents this equation passes through the origin point, then the equation shows a proportional relationship

∵ y = 3x

∵ x = 0

∴ y = 3(0)

∴ y = 0

→ That means the line that represents the equation passes through

   the origin point

∴ The equation y = 3x shows a proportional relationship between x and y

7 0
3 years ago
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