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rewona [7]
3 years ago
14

15. twice a number less than twenty is at most ten Inequality: help please

Mathematics
2 answers:
frozen [14]3 years ago
8 0

Answer:

20 x 4 + 3

Step-by-step explanation:

Mama L [17]3 years ago
8 0

Answer:

20-2n<_10 (I cant do the less than or equal sign but the <_ is less than or equal to)

Step-by-step explanation:

At first I did 2n-20<_10 but it didn't work but I then did 20-2n<_10 and it worked.

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ashley purchased a prepaid card phone card for $15. long distance calls cost 11 cents per minute using this card. ashley used he
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It depends if Ashley was on the call for seconds too,if there can be a remainder , if so then it would be 3 min. and 47 sec.
5 0
3 years ago
Which two values of x are roots of the polynomial below? x^2-3x+5
Gemiola [76]

Given:

Polynomial x^2-3x+5

To find:

The values of x.

Solution:

x^2-3x+5=0

Quadratic equation formula:

$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}

Here a=1, b=-3, c=5.

Substitute the values in the formula, we get

$x=\frac{-(-3) \pm \sqrt{(-3)^{2}-4 \cdot 1 \cdot 5}}{2 \cdot 1}

$x=\frac{3 \pm \sqrt{9-20}}{2}

$x=\frac{3 \pm \sqrt{-11}}{2}

$x=\frac{3 - \sqrt{-11}}{2} \ \text{and} \ x=\frac{3 + \sqrt{-11}}{2}

Option E and option F are the roots of the polynomial.

The values of x are x=\frac{3 - \sqrt{-11}}{2} \ \text{and} \ x=\frac{3 + \sqrt{-11}}{2}.

7 0
3 years ago
Which rotation has occured if A (-4,2) moves to A (-2,-4)​
Alja [10]

Answer:

90 degrees counter-clockwise

Step-by-step explanation:

7 0
3 years ago
Ten students ordered eight pizzas
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4 0
4 years ago
The following function represents the value of a house, in dollars, after x years: f(x) = 242,000(1.04)x What does 1.04 represen
zmey [24]
The number 1.04 represents the rate at which the house appreciates, or increases in its price annually.

As according to the values of an exponential equation, which is represented by this: y=ab^x, the a value represents the original price, the b value represents the rate of growth/decay (if growth, you add 1 to the rate, if decay, you subtract the rate from 1), and x represents the amount of times it decays or grows.

As according to the function <span> f(x) = 242,000(1.04)^x, 242,000 is the original price and 1.04 is the rate of growth since 1 has been added to the the 4% annual growth.</span>
5 0
3 years ago
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