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Vinil7 [7]
4 years ago
5

Simplify 7^-9 x 7^-7x 7^-9 leaving your answer in the form a^n where a is a whole number

Mathematics
1 answer:
Molodets [167]4 years ago
7 0

{7}^{ - 9}  \times  {7}^{ - 7}  \times  {7}^{ - 9}  \\  =   {7}^{ (- 9) + ( - 7) + ( - 9)} \\   = {7}^{ - 9 - 7 - 9}  \\  =  {7}^{ - 25}
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Which graph represents a line with a slope of and a y-intercept equal to that of the line y = 2/3 x – 2?
qwelly [4]
The graph would have to look like the attachment I attached to this comment. If you can't see it then the graph will go through the y-intercept of -2 and the x-intercept of 3. 

Explanation: Already we can tell that the line will go through -2 as the y-intercept. So we have to take the slope and apply it to the -2. The slope is in rise over run form. We rise 2 times. And then go to the right 3 times. We can do the same but backwards. Go down 2 times. and then go left 3 times. Do it twice in both ways and you have your line. 

7 0
4 years ago
Read 2 more answers
Simplify 9/4 using fractions. ​
seropon [69]

First to Answer:

The answer is 2 1/4

Have a great day!

Work:

9 divided by 4 is 2.25.

0.25 is equivalent to 1/4 and 2.00 is equivalent to 2.

put those together and you get 2 1/4.

8 0
3 years ago
Write a quadratic function in standard form whose graph has a vertex at (7,-3)​
Xelga [282]

Answer:

what is this

Step-by-step explanation:

and btw for the free coins

4 0
3 years ago
Alisha asked 120 students what kind of pet they liked the most. exactly 45% of the students said they liked dogs best. what was
Arada [10]
Answer is b. 54

Because 0.45 × 120 = 54

You're welcome, give thanks ;)
8 0
3 years ago
Write a simplified expression for the length of AC.
Elena L [17]

Answer:

see below

Step-by-step explanation:

Using the segment addition postulate

AB + BC = AC

x+2 + 7x-3 = AC

Combine like terms

8x -1 = AC

Using the segment addition postulate

PQ + QR = PR

8y+5 + QR = 13y+25

Subtract 8y from each side

5 + QR = 13y-8y+25

5 + QR = 5y+25

Subtract 5 from each side

QR = 5y+25-5

QR = 5y+20

3 0
3 years ago
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