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mixer [17]
3 years ago
15

Please answer! will give brainliest!!!

Mathematics
2 answers:
Studentka2010 [4]3 years ago
5 0
Median is 26 range is 41
GalinKa [24]3 years ago
4 0

Answer:

The answer is the last one

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Please answer number 1 and 2 with ABC or D
Free_Kalibri [48]

Answer:

1. (a) a+b=86

2. (c) 5.99a+9.99b≤600

Step-by-step explanation:

1.

a = amount of 16gb memory sticks

b = amount of 21gb memory sticks

Gary is buying a memory sticks for each of the 86 teachers. Therefore the total sum of both 16gb and 32gb memory sticks should equal 86:

a+b=86

2.

a = amount of 16gb memory sticks

b = amount of 21gb memory sticks

Each 16gb memory stick cost $5.99, and each 32gb one costs $9.99. Therefore...

5.99a = total cost of 16gb memory sticks

9.99b = total cost of 32gb memory sticks

Gary has to spent an amount less than or equal to $600. Therefore, the total sum of the costs of both 16gb and 32gb memory sticks should be less than or equal to 600:

5.99a+9.99b≤600

3 0
2 years ago
An airline states that an airplane flight between two cities takes 2.5 hours. The airline also says that the actual flying time
tatiyna

Answer:

i do not know

Step-by-step explanation:

3 0
3 years ago
What are the roots of the equation 9x^2 + 54x +82 = 0 in simplest a + bi form?​
s344n2d4d5 [400]

Answer:

The roots are

<h3>x =  - 3 +  \frac{1}{3}  i \:  \:  \: or \:  \:  \: x =  - 3 -  \frac{1}{3} i \\</h3>

Step-by-step explanation:

9x² + 54x + 82 = 0

Using the quadratic formula

That's

<h3>x =  \frac{ - b\pm \sqrt{ {b}^{2}  - 4ac} }{2a}</h3>

From the question

a = 9 , b = 54 , c = 82

Substitute the values into the above formula and solve

That's

<h3>x =  \frac{ - 54\pm \sqrt{ {54}^{2}  - 4(9)(82)} }{2(9)}  \\ x =  \frac{ - 54\pm \sqrt{2916 - 2952} }{18}  \\ x =  \frac{ - 54\pm \sqrt{ - 36} }{18}  \\ x =  \frac{ - 54\pm 6i}{18}</h3>

Separate the real and imaginary parts

That's

<h3>x =  -  \frac{54}{18} \pm \frac{6}{18}  \: i \\ x =  - 3\pm \frac{1}{3} i</h3>

We have the final answer as

<h3>x =  - 3 +  \frac{1}{3}  i \:  \:  \: or \:  \:  \: x =  - 3 -  \frac{1}{3} i \\</h3>

Hope this helps you

5 0
3 years ago
Would the mean or median best describe the given data. Explain your choice? ONLY ANSWER IF YOU KNOW ITS CORRECT
tankabanditka [31]

Answer:

is there any data?

Step-by-step explanation:

the "given data" would really help

8 0
2 years ago
Katya has several sources of income, listed in the table. Which are considered earned income? *****Select all that apply.******
Lady_Fox [76]

Answer: $1300 per month salary

2% commission on all sales

3 0
3 years ago
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