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ExtremeBDS [4]
3 years ago
10

Consider the quadratic function that has x-intercepts of –1 and –7 and passes through the point (–2, –20). What is the value of

a in the factored form of this function?
Mathematics
2 answers:
iVinArrow [24]3 years ago
6 0
The correct answer is 4
andriy [413]3 years ago
3 0
Yes she is correct the answer is 4

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Find the perimeter for both questions. Both questions are compound shapes please provide working out.
Marrrta [24]
First one:
You take 10 + 3 =13 then add 9 then 5. That all equals 27. Then you add 1 for the top part that isn’t labeled because it’s 10 in the bottom then 9 at the top which means it’s 1. Then for the side that’s unlabeled it’s 2 since it’s all 5 then the other side is 3. Answer is 31



Second one:

This one is the same as #1. You add 14+6+3+4 = 27. The long horizontal unlabeled side is 11 bc 14-3 = 11. Then the other side 2. Answer is 30.
8 0
3 years ago
The cost of a pair of jeans was changed from $47 to $42.13. What was the percent change?
zhenek [66]

Answer:

10.36

Step-by-step explanation:

  1. $47 - $42.13 = $4.87
  2. ($4.87 ÷ $47) × 100 = 10.36%

6 0
3 years ago
There is 6 7/8 cups now i take 2 5/8 away how many is left ?
REY [17]

left means subtracting

6 7/8 - 2 5/8

Whole numbers subtract each other

Numerators subtract each other

The denominators stay the same.

6-2= 4

7-5=2

4 2/8

Reduce 2/8. Divide by 2. 2/2= 1, 8/2= 4

4 2/8=4 1/4

Answer: 4 2/8 = 4 1/4 cups left

3 0
3 years ago
Read 2 more answers
Please help fast!!! i need this by 3 today
nexus9112 [7]

Answer:

√13 is not a rational number .......

Step-by-step explanation:

<em><u>mark</u></em><em><u> me</u></em><em><u> as</u></em><em><u> brainliest</u></em><em><u> ❤️</u></em>

3 0
2 years ago
Read 2 more answers
If cos theta =-2/3, which of the following are possible
Dima020 [189]
Well, the cos(∅) is negative in the second and third quadrants.  If you are solving for theta, you would use the inverse of the cos or arccos
cos(x) = ( \frac{-2}{3} ) take the inverse of both sides to get:
x = arccos(-2/3) now evaluate the right
x = 131.8103149 degrees
to find your second solution, subtract your reference angle from 360 degrees.
360 - 131.8103149 = 228.1896851 degrees

Now the period of cos is 2π or 360 degrees. So if you want to consider all possible solutions, you would need to add/subtract 360n to both solutions above.. 

Not sure if this is what you're looking for, but thought I would leave it here for you just in case... As a side note, you could do this problem in radian measurement as well.
6 0
3 years ago
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