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3241004551 [841]

3 years ago

12

What's the answer to this problem????

1 answer:

AnnZ [28]3 years ago

7 0

The correct answer is 27inches

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What will be the value of y when x is 20?

AlekseyPX

Answer:

x=20

y=?

Step-by-step explanation:

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Shoes cost $80 they are discounted at 40% off.The tax is 6.75%.What is the final cost of the shoes.

Brilliant_brown [7]

You have to turn the percent into a decimal to do the math.

80 * .40 = 32 (That's the discount.) Now we subtract the orginal price from this.

80 - 32 = 48

Now we need to find the tax value.

48 (our new price) * .0675 = $3.24

Add this back onto the price to get our final price.

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3 years ago

3.25- 13 tenths A:10.25 B:3.12 C:2.95

timofeeve [1]

Answer:

its B:3.12

Step-by-step explanation:

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3 years ago

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2x2 - 12x + 10<br>what are the roots

Tcecarenko [31]

Answer:

5 & 1

Step-by-step explanation:

We can use the quadratic formula to solve this:

Quadratic Formula = $\frac{-b+-\sqrt{b^2-4ac} }{2a}$

So we will have 2 answers (roots).

a is the coefficient of x^2 (2)

b is the coefficient of x (-12)

c is the constant (10)

Now, substituting, we get:

x = $\frac{-b+-\sqrt{b^2-4ac} }{2a}=\frac{12+-\sqrt{(-12)^2-4(2)(10)} }{2(2)}=\frac{12+-\sqrt{64} }{4}=\frac{12+-8}{4}=\frac{12+-8}{4}=5,1$

Hence the roots are 5 & 1

4 0

3 years ago