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3 years ago

Is there a local minimum at x= -4?

Mathematics

1 answer:

Arturiano [62]3 years ago

7 0

9514 1404 393

Answer:

yes

Step-by-step explanation:

Yes, the turning point at (-4, -16) is a local minimum. It is a minimum because the curve goes upward either side of it. It is local (not global) because the curve has values that are lower than -16 at other values of x.

Similarly, the point (4, 16) is a local maximum.

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A laptop has a listed price of $843.88 before tax if the sales tax rate is 7.25% find the total cost of the laptop with sales ta

Step2247 [10]

Answer:

$905.06 dollars

Step-by-step explanation:

Given the following question:

7.25% of 843.88

In order to find the answer, we use the formula to calculate percentages, then we add that answer to the initial cost of the laptop.

$\frac{p\times c}{100}$
$\frac{7.25\times843.88}{100}=7.25\times843.88=6118.13\div100=61.1813$
$61.1813$
$1 < 5$
$61.18$

Now add:
 $843.88+61.18=905.06$
$=905.06$

Which means the laptop after a 7.25% sales tax costs "$905.06 dollars."

Hope this helps.

7 0

2 years ago

Need help I need to turn this in by tomorrow

MatroZZZ [7]

Answer:

A: 6 boxes right, 9 boxes down, 9 boxes left, connect back to start.

B: 3 boxes right, 9 boxes up, (diagonal 6 right, 12 down), 9 boxes up, 6 boxes right.

C: 1 box right, 2 boxes down, 1.5 boxes right, 1 box up, .5 box right, 2.5 boxes down, 3 boxes left, 3.5 boxes up to connect.

D: (diagonal 1 up, 1 right), 1 box right, (diagonal 1 down, 1 right), 1 box down, (diagonal 3 down, 3 left), 3 boxes left

Step-by-step explanation:

6 0

3 years ago

Find the value of x in the figure below.

inessss [21]

Step-by-step explanation:

75 is equal to opposite angle of x.

so,

75° +65°+ x=180°( by all angles sum)

140°+x=180°

x=180°-140°

x=40°

4 0

3 years ago

Read 2 more answers

Solve for x. 3(x + 2) + 4(x - 5) = 10

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Step-by-step explanation:

3x+6+4x-20=10

7x-14=10

7x=24

x=24/7

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3 years ago

Read 2 more answers

If R is the midpoint of QS,QR=5x-4 and RS=2x+2,find QS

VashaNatasha [74]

Answer:

First graph it out. Once you do that you can see that QR is the same as RS. So you can do the equation 5x-4=2x+2. Once you solve this out you would get 2.4. I'm just an advanced 7th grader, so you can redo the problem to make sure

Step-by-step explanation:

QS=2.4

7 0

3 years ago

Is there a local minimum at x= -4?​

Is there a local minimum at x= -4?