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ipn [44]
3 years ago
15

What is the function for a table with a domain of 5, 10, 15, 20 and a range of 40, 80, 120, and 160

Mathematics
1 answer:
kykrilka [37]3 years ago
6 0
To find the range we need to find the vertex of the parabola which is at (-b/2a , y)

-b/2a would be 2/2 = 1 ... so find the y value at x = 1

12 - 2(1) - 15 = 1-17 = -16

So the vertex is at (1,-16)

Since the parabola opens upward from that point the minimum value of the range is y = -16

The range would include the point -16 so it is actually

R = [-16,infinity)

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explain how you can mentally determine whether 125 x 0.9 is less than, greater than, or equal to 125.
Citrus2011 [14]
Anything times 1 is equal to itself. Anything times less than one is less than itself. Anything times greater than one is greater than itself. Therefore, 125 times .9, which is less than one, is less than 125
3 0
3 years ago
Read 2 more answers
If cos(x)=1/4 what is sin(x) and tan(x)
anygoal [31]
You can use the identity
  cos(x)² +sin(x)² = 1
to find sin(x) from cos(x) or vice versa.

  (1/4)² +sin(x)² = 1
  sin(x)² = 1 - 1/16
  sin(x) = ±(√15)/4


Then the tangent can be computed as the ratio of sine to cosine.
  tan(x) = sin(x)/cos(x) = (±(√15)/4)/(1/4)
  tan(x) = ±√15


There are two possible answers.
In the first quadrant:
  sin(x) = (√15)/4
  tan(x) = √15

In the fourth quadrant:
  sin(x) = -(√15)/4
  tan(x) = -√15
3 0
3 years ago
Find the common factor of all the terms of the polynomial 16x2 - 14x.
zysi [14]

Answer:

2x(8x-7)

Step-by-step explanation:

6 0
3 years ago
What is 3.375 into a fraction?
lapo4ka [179]
Use your knowledge of place value to write your fraction

3 and 375/1000

now reduce. Both are divisible by 25.

3 15/40

oops, not done yet... we can still divide by 5

3 3/8

Done!
3 0
3 years ago
alls arrive at a call center at an average rate of 100/min. Depending on the availability of a service representative, calls may
NISA [10]

Answer:

the number of callers on average are in the system at any given time is 440

Step-by-step explanation:

Given that

The calls that arrive in a call center have an average rate of 100 per min

But it we involve the waiting time so the call needed 4.4 minutes

We need to to find no of callers are in the system at any given time

SO,

= 100 per min × 4.4

= 440

hence, the number of callers on average are in the system at any given time is 440

The same would be considered

5 0
3 years ago
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