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fredd [130]
3 years ago
10

I’m stuck how do u solve this?

Mathematics
1 answer:
Masja [62]3 years ago
6 0

Answer:

Step-by-step explanation:

So, you need to solve all of the options and see if they would fit in between -8 and 5 like how:

A. 5- (-8) would be 13 therefore wouldn't be a correct answer

Or how

D. 5+(-8) would be -3 therefore would be a correct answer

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Keith is saving money for a car. He has saved the same amount each year for the past three years, and records how much he has at
noname [10]

Answer:

Keith's unit rate of change of dollars with respect to time is $1500.

Step-by-step explanation:

It is given that Keith is saving money for a car.

Year 1: 1500

year 2: 3000

year 3: 4500

Let y be the saved amount after x year.

The coordinate pairs according to the given table are (1,1500), (2,3000) and (3,4500).

The formula for rate of change is

Consider any two coordinate pairs.

Let as consider (1,1500) and (2,3000). So, Keith's unit rate of change of dollars with respect to time is

Therefore, Keith's unit rate of change of dollars with respect to time is $1500.

8 0
3 years ago
certain electronics manufacturer found that the marginal cost C to produce x DVD/Blu- ray players can be found using the equatio
AleksAgata [21]

Answer:

242.

Step-by-step explanation:

C = 0.03 x 2 − 8 x + 700

When the marginal cost = $522 we have:

522 = 0.03 x 2 − 8 x + 700

0.03x^2 - 8x + 700 - 522 = 0

0.03x^2 - 8x + 178 = 0

Using the quadratic formula:

x =  [ -(-8) +/- sqrt( 64 - 4 * 0.03 * 178)] / 0.06

= 8 +/- sqrt42.64 / 0.06

= 242  players.

8 0
3 years ago
30 points! Inflection points question. Okay, so I know that an inflection point is where the function is continuous and the conc
Pavel [41]
Find the concavity changes of f(x).
Give the x-coordinates.

So, the answer to the multiple choice question is -1 and 5 since those points are where f''(x) changes sign.

Note: You can tell that you're supposed to find the concavity changes of f(x) and not f''(x) because from the graph it's obvious that the concavity of f"(x) doesn't change.
5 0
4 years ago
Free 100coins. (just giving back because this community is awesome)
mote1985 [20]

Answer:

TYSM!! Have a awesome day

-

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Given m ||n, find the value of x. (x+14)° (4x-9)°​
deff fn [24]

Answer:4.5 hope this helps

Step-by-step explanation:

6 0
3 years ago
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