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Firlakuza [10]
2 years ago
6

If 18 is subtracted from twice the square of an integer, the

Mathematics
1 answer:
kherson [118]2 years ago
6 0

Answer:

-3/2

Step-by-step explanation:

Let x = the integer:

2x^2 - 18 = 9x

2x^2 - 9x - 18 = 0

Now either factor that or use the quadratic formula if you're lazy like me.

x = -3/2 and 6, so x must be 6 because it has to be an integer.

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What are the excluded values of x for
ss7ja [257]

Answer:

x = - 2, x = 9

Step-by-step explanation:

Given

f(x) = \frac{x^2-9x}{x^2-7x-18}

The denominator of f(x) cannot be zero as this would make f(x) undefined.

Equating the denominator to zero and solving gives the values that x cannot be.

x² - 7x - 18 = 0

(x - 9)(x + 2) = 0

Equate each factor to zero and solve for x

x + 2 = 0 ⇒ x = - 2

x - 9 = 0 ⇒ x = 9

The excluded values are x = - 2, x = 9

3 0
3 years ago
Helppppppp!!!! Please
ValentinkaMS [17]
Last option is your answer ( 0.00000991)
4 0
3 years ago
The regular price of a TV is $475. It's currently on sale for 30% off. What is
Hitman42 [59]

Answer:

You will pay $332.50 for a item with original price of $475 when discounted 30%

meaning the discount is $142.50

Step-by-step explanation:

if you buy an item at $475 with 30% discount, you will pay 475 - 142.5 = 332.5 dollars.

please give brainliest and thanks if possible

7 0
3 years ago
(b) Write 3*3*3*3* 3 as a single power of 3
algol13

Answer:

3⁵

Step-by-step explanation:

3×3×3×3×3=3⁵

You have a mutiplication. The base is 3, the exponent is the count of how many 3 you have. In this multiplication 3 appears 5 times, so 3⁵.

5 0
4 years ago
Read 2 more answers
A bakery sells 3 muffins for every 5 pizza pies.The bakery sold a total of 24 muffins and pizzas pies together.how many of each
Rudiy27

Number of muffins sold=9

and number of pizza pies sold=15

8 0
3 years ago
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