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iren2701 [21]
3 years ago
11

Please help! Will mark the brainliest!

Mathematics
1 answer:
NikAS [45]3 years ago
7 0
Interval notation uses parenthesis ( or ) for points that are not included in the function (open circle) and brackets [ or ] for points that are included in the function (filled in circle).

Remember that the domain for a function is the range of x-values in a function.

Interval notation includes the numbers at the each end of a continuous function. For function F, the leftmost x-value is 0. The rightmost x-value is 8. Both points at x = 0 and x = 8 are included in the function (filled in circles), so you would use the brackets. The entire function is continuous between those two points.

That means the interval notation for the domain of F is:
[0, 8]

------

Answer: [0, 8]
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Solve the system of equations. x=-2y+1 and x+2y=9. PLEASE SHOW WORK
docker41 [41]

Answer:

N0 solution.

Step-by-step explanation:

x=-2y+1....(1)

x+2y=9....(2)

put equation (2) to equation (1)

-2y+1 + 2y=9

combine

-2y + 2y=9-1

0=8

No solution.

4 0
2 years ago
The length of a tennis court is 10 feet shorter than 3 times its width x express and the perimeter of the tennis court in terms
Norma-Jean [14]

First, let's define our variables.


Let's call our width X(given)

and our length, since it's 10 shorter than 3 times the width, we can call our length:

3x-10

So, the perimeter of a rectange is equal to 2 times the length + 2 times the width.


So, when we plug our values in, we get

2(3x-10)+2x\\6x-20+2x\\8x-20

The perimeter is 8x-20


4 0
2 years ago
Someone help and plz make sure it’s right
Temka [501]

Answer:

50

Step-by-step explanation:

all angles must equal to 180

8 0
2 years ago
Find the length of the hypotenuse. Round your answer to the nearest hundredth
laiz [17]

Answer:

c^2=a^2+b^2

=7^2+3^2

=49+9

=58

c^2=58

c=

\sqrt{58 = 7.6}

the answer is C=7.62..

8 0
2 years ago
Read 2 more answers
Plz help im almost done just a few more hw questions I'm stuck on
sesenic [268]
The third one should be -2(2x-6)=12-4x
Last one should be 2(2x-6)+4x=8x-12
8 0
3 years ago
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