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tatiyna
3 years ago
5

On what interval(s) of x does f have positive concavity?

Mathematics
1 answer:
Elza [17]3 years ago
5 0

Answer:

-5 that oneeksssoossdos

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Please answer this!
Talja [164]

We have been given that a graph that represents the amount of money in dollars that Tony expects to deposit in his account in terms of the number of years since opening the account.

We are asked to find the rate of change and initial value from our given graph.

We know that initial value is the point, where, graph intersects y-axis that is when x is equal to 0.

We can see that graph starts at 5000 on y-axis, therefore, initial value is $5000.

The rate of change will be equal to slope of line. Let us find slope of line using points (0,5000) and (1,7500).

m=\frac{7500-5000}{1-0}

m=\frac{2500}{1}

m=2500

Therefore, the rate of change is $2500 per year.

The equation y=2500x+5000 represents the amount of money in dollars that Tony expects to deposit in his account.

5 0
4 years ago
Meghan went out to lunch. Her food costs $11.62. A 6% sales tax was
adelina 88 [10]

Answer:

$12.31

Step-by-step explanation:

11.62 divided by 2 =0.69

$11.62+$0.69=12.31

7 0
3 years ago
A pair of jeans is on sale for 25% off the original price. Which expression represents the sale
scZoUnD [109]

Answer:

$30

Step-by-step explanation:

If it's 25% off, then to find the sale price we just need to subtract 25% of the original price from the original price.

Original price is 40 so we do 40 - (40 * 0.25) = 30

6 0
3 years ago
Perform the operation. Write the answer in standard form. (−2+3i)+(7−6i)=
Soloha48 [4]
(5-3i,)



..................,.
4 0
4 years ago
Pls help me !!!!!!!!!!!!!!!!!!!!!!!!!!
marysya [2.9K]

Answer:

1. y^12/y^12=1

2. q^15*1/q^15=1

3. (7(123456.789)^4)^0=1

4. 2^2*1/2^5=1/2^3

5 (x^41/y^15)*(y^15/x^41)=1

Step-by-step explanation:

1. when dividing exponents, subtract the exponents. y^12/y^12=y^(12-12)=y^0=1

2. you do the same as #1

3. Any number to the power of 0 is always 1

4. 1/2^3=1/8

5. since the numerator and denominator is the same, the divide to equal 1

Hope I helped

8 0
3 years ago
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