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goblinko [34]
3 years ago
8

Determine the average of the following test scores: 97,99,87,89

Mathematics
1 answer:
IRISSAK [1]3 years ago
6 0
All you have to do is add up all the numbers and divide by the amount of numbers there are so in this case 4
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NEED HELP FAST!! A line has a slope of -3 and a y-intercept of 5. Write the equation of the line in slope-intercept form and exp
Nookie1986 [14]

Answer:

y = -3x + 5

Step-by-step explanation:

To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=-3x + 5 tells us that the slope of the line is -3 and the y-intercept is at (0,5). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.

8 0
3 years ago
Suppose a car rental company charges $88 for the first day and $38 for each additional or partial day. Let S(x) represent the co
riadik2000 [5.3K]

Answer:

C. $240 for 4.5 days.

Step-by-step explanation:

Let's find the answer using the following data:

Notice that the first day is $88 which can be written as:

first day= $38 + $50, in this way the first day cost the same as the other additional days but it include an additional $50 charge.

In this way we can have the formula:

S(x)=38x+50

Notice in the above formula that the '50' represents the extra money for the first day, while '38' the normal cost per day.

Now, S(4.5) needs to be evaluated as S(5) given the condition that a partial day also costs $38, so:

S(4.5)=S(5)=(38*5)+50=240

In conclusion, for 4.5 days the cost is $240, so de answer is C.

6 0
4 years ago
Need help really pllzzzz.....
Dominik [7]
G(x)=-2x-4
f(x)=15+0.75x

the common solution Q is their intersection-> calculate x by setting them equal:
-2x-4=15+0.75x
-2x-(3/4)x=19
-(11/4)x=19
x=-4*19/11
x=-76/11

calculate y:
f(-76/11)=15+(3/4)*(-76/11)
=15+(-3*19/11)
=15+(-57/11)
=15+-5-(2/11)
=10-(2/11)
=108/11

so the solution is a) (-76/11, 108/11)
4 0
3 years ago
A triangular plot of land has dimension of 20km ×30km. What is the area of the land
il63 [147K]
So the formula for area of a triangle is A= 1/2 base x height. SO you do 20 x 30 you get 600. 600/ 2 = 300 so 300 km squared.

3 0
4 years ago
How do you find critical points trig functions?
Mamont248 [21]
The Critical points and the Trig Functions are not really that different than the methods you always use for finding those critical points for any other types of functions and the Critical points are points that the derivative is set as a 0 or it can be undefined.<span />
5 0
3 years ago
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