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3 years ago

Do the functions have the same concavity? f(x)=2x^2-10x-30

Mathematics

2 answers:

kumpel [21]3 years ago

5 0

Answer:

Use the inflection points to set up intervals. Substitute a value into each interval to find where the curve is concave up or down.

The graph is concave up

Gnom [1K]3 years ago

4 0

Answer:

Step-by-step explanation:

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If $300 is invested at a rate of 6% per year and is compounded quarterly, how much will the investment be worth in 12 years?

MAXImum [283]

Answer:

$613.04

Step-by-step explanation:

<em>Compound Interest Formula:</em>

$A = P(1+\frac{r}{n})^{nt}$

n = number of compounds

t = time

r = interest rate

P = principle amount (original amount)

A = final amount

Since it's compounded quarterly, that means there will be 4 compounds per year, so n=4. The interest rate has to be converted to the decimal value, and this is done by simply dividing it by 100 to get r=0.06.

Plug Values into equation:

$A = 300(1+\frac{0.06}{4})^{12*4}$

Simplify inside parenthesis

$A = 300(1.015)^{48}$

Calculate exponent

$A \approx 300(2.043478)$

Multiply values

$A \approx 613.04348$

Round

$A = 613.04$

7 0

2 years ago

Help ASAP . i will give you points please !

Pachacha [2.7K]

It should be 150, 110+100=210 mines 360 equals 150

5 0

3 years ago

Convert the following number into the English translation

Nataly_w [17]

Where is the number?

6 0

3 years ago

Select the type of equations Consistent Equivalent Inconsistent

Vikki [24]

Answer:

21 is the answer for that

5 0

3 years ago

Dana spent $495 on 15 hours of obedience training for her dog Rusty. Felipe wants to

swat32

Answer:

9 hours

Step-by-step explanation:

$495 divided by 15 hours = $33 - this is how much the trainer charges per hour.

$297 divided by $33 per hour = 9 hours of training

7 0

3 years ago