What is 2+2 (just asking)

The candy store is having 30% off sell. Emma is going to buy $7.50 worth of candy. How much will she pay after the discount

Angelina_Jolie [31]

Answer:

Emma will pay $5.25

Step-by-step explanation:

In order to find this, we first need to find the amount of the discount. We can do that by taking the overall amount and multiplying it by the percentage decrease.

$7.50 * 30% = $2.25

Now since we know the size of the discount, we can subtract it from the original cost.

$7.50 - $2.25 = $5.25

6 0

3 years ago

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Slope= -7\6 y-intercept= -1

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

in y = mx + b form, the slope will be in the m position and the y int will be in the b position.

y = mx + b

slope(m) = -7/6

y int (b) = -1

y = -7/6x - 1 <== ur equation

6 0

3 years ago

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If x = −4 is a zero of the polynomial function f(x) = 2x3 + 13x2 + 23x + 12, which of the following is another zero of f(x)

Galina-37 [17]

Your answer is B, X = -1

A “zero” is the number x has to be for the equation to equal 0. So, looking at the equation, x HAS to be negative, because the whole equation has +’s, which will never amount to 0 unless X is a negative number.

You can also plug -1 in for X as so:
2(-1)3 + 13(-1)2 + 23(-1) + 12

Which simplifies:
-2 +13 - 23 + 12

Which equals 0

I hope this Helps!

7 0

3 years ago

25x196+183018= please help

KonstantinChe [14]

The answer is. 187918

7 0

2 years ago

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The manufacturer of a wooden feeding trough for farm animals makes the sides and bottom of the trough 1 foot thick. The outer he

Tju [1.3M]

Answer:

outer width of trough = outer height of trough = x = 4ft

outer length of trough = 2x = 8ft

Step-by-step explanation:

Let,

x = outer width of trough = outer height of trough

Now, according to given condition:

2x = outer length of trough

Now we calculate the inner dimensions by subtracting the thickness (1 ft)

Therefore,

x - 2(1ft) = x - 2ft = inner width of trough (because 1ft from both sides will be subtracted)

x - 1ft = inner height of trough (because only bottom thickness will be subtracted)

2x - 2ft = inner length of trough (because 1ft from both sides will be subtracted)

Now, for the holding volume or inside volume of trough will be:

$Inner Volume = 36\ ft^3 = inner\ height*inner\ width*inner\ length \\36 = (x - 1)(x - 2)(2x - 2)\\36 = (x - 1)(2x^2 - 6x + 4)\\36 = (2x^3 - 6x^2 + 4x - 2x^2 + 6x - 4)\\36 = (2x^3 -8x^2 + 10x - 4) \\2x^3 -8x^2 + 10x - 40 = 0\\2x^2(x-4)+10(x-4) = 0\\(x-4)(2x^2+10) = 0\\$

So, we will have three roots from this solution. Two, of them will be complex from the second factor. So, we ignore them and take the third one as our answer:

x - 4 = 0

x = 4ft

Now the outer dimensions will be:

<u>outer width of trough = outer height of trough = x = 4ft</u>

<u>outer length of trough = 2x = 8ft</u>

7 0

2 years ago

What is 2+2 (just asking)​

What is 2+2 (just asking)