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zubka84 [21]
4 years ago
15

xWhich polynomial represents (5x2 + 3x – 4)(2x + 3)? A 10x3 + 20x2 + x – 12 B 10x3 + 21x2 + x – 12 C 10x3 + 24x2 + x – 12 D 10x3

+ 5x2 + x – 12
Mathematics
1 answer:
My name is Ann [436]4 years ago
5 0
(A.)i think idk if it right or not
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Here are the prices of five new skateboards, in dollars: 75, 82, 100, 120, 140.
Lynna [10]

The standard deviation<u> </u><u>INCREASES</u>

Step-by-step explanation:

Standard deviation is used to show how the points of the data deviate from the mean. The formulae for deriving standard deviation is attached. As seen from the formulae, the greater the variance of the data from the mean, the higher the Standard Deviation.

The mean of the given data points is $103.4. $450 is way off from this mean meaning that there is a large variance in this data point.

8 0
3 years ago
A right triangle has an area of 2k^2-k-15 One of the legs has a length of k^2-9 What is the ratio of the area of a triangle to t
Darya [45]
<h3>Given</h3>

A = 2k² -k -15

L = k² -9

<h3>Find</h3>

A/L

<h3>Solution</h3>

\displaystyle\frac{A}{L}=\frac{2k^2-k-15}{k^2-9}=\frac{(k-3)(2k+5)}{(k-3)(k+3)}\\\\=\frac{2k+5}{k+3}

4 0
3 years ago
At a company picnic, 1/2 of the people are employees. 2/5 are employees' spouses. What percent are neither?​
kupik [55]

Answer:

10% of the people at the picnic are neither.

Step-by-step explanation:

To get the answer,

1/2 + 2/5 = 9/10

10/10 - 9/10 = 1/10

1/10 = 10%

Thanks, I hope I got this right!

7 0
3 years ago
The number of fives is 3 more than six times the number of tens. Let t represent the number of tens. Write an expression for the
bixtya [17]

Answer:

The required expression is f = 3+6t

Step-by-step explanation:

Let t represent number of tens

Let f represent number of fives

So, the expression for number of fives can be formed by using:

The number of fives is 3 more than six times the number of tens.

f = 3+6t

So, the required expression is f = 3+6t

4 0
3 years ago
Please helpppppppppppppp
77julia77 [94]
The answer would be 4/5 and 40%
5 0
3 years ago
Read 2 more answers
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