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Ratling [72]
3 years ago
6

HELP NOW PLEASE!!!!!!!!!!!!

Mathematics
1 answer:
musickatia [10]3 years ago
7 0

Answer:

Negative numbers are used in navigation and directions determination

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What is the product of (4a+6)(3a-8)
Andreyy89

Answer:

12a²-14a-48

Step-by-step explanation:

4a(3a-8) + 6(3a-8)

= 12a²-32a+18a-48

=12a²-14a-48

4 0
3 years ago
Which expresión is equivalent to 8x-2y+x+x
Marta_Voda [28]
We can combine x + x and get 2x. So we have:
8x - 2y + 2x. Therefore 10x - 2y is equivalent.
8 0
3 years ago
15. Which of the following distributions is most likely to be uniform?
MAXImum [283]

Answer:

(b) The distribution of the last digits of ID numbers in a sample of 100 college students

Step-by-step explanation:

<u>Uniform Distribution Explanation</u>

In statistics, uniform distribution refers to a type of probability distribution in which all outcomes are equally likely.

The only possibility here is the distribution of the last digits since the last digit can be 0 thru 9 and each is equally likely to appear in a random sample of 100 students

The others can be eliminated

Heights can vary depending on gender, ethnic background etc. In fact heights will follow a normal distribution

Scores can vary, most students will be scoring around the mean follows a  normal distribution

GPAs like scores can vary, most students will have GPAs close to the mean GPA so follows a normal distribution

7 0
11 months ago
Select the pair(s) of ratios that form a proportion.
ryzh [129]

Answer:

C is the only choice that forms a proportion

Step-by-step explanation:

a. 24/31, 20/27

(31 is prime)

b. 8/9, 24/36

(this one doesn't work since it would have to be 3/4) which isn't a proportion

c. 16/5, 64/20

(both 16/5  *4 = 64/20) so it works

d. 6/4 , 15/10

(similar situation to choice b the ratio wont work since 6 doesn't go into 15)

5 0
2 years ago
The cost of internet access at a café is a function of time. The costs for 8, 25, and 40 minutes are shown. Write an equation in
PolarNik [594]

Answer:

  • y=0.17x+3
  • The cost of surfing the web at the café for one hour: \$13.2

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

Take two points and substitute them into the formula for calculate the slope (The formula is m=\frac{y_2-y_1}{x_2-x_1}).

Having these points:

(8,4.36) and (40,9.80)

You can identify that:

y_2=4.36\\y_1=9.80\\\\x_2=40\\x_1=8

Then, the slope is:

m=\frac{4.36-9.80}{40-8}=0.17

Substitute the slope and the coordinates of any point on the line into the equation y=mx+b and then solve for "b":

4.36=0.17(8)+b\\\\4.36-1.36=b\\\\b=3

Therefore, equation in Slope-Intercept form that represents the function is:

y=0.17x+3

Since 1 hour hour has 60 minutes, you need to substitute x=60 into the equation and then evaluate, in order to find the cost of surfing the web at the café for one hour. Then:

y=0.17(60)+3\\\\y=13.2

6 0
3 years ago
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