2 years ago

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

Mathematics

2 answers:

kumpel [21]2 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]2 years ago

4 0

Answer:

Step-by-step explanation:

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Help please!!!!<br> Simplify the following <br> Sqrt 100 x ^13

Ket [755]

Answer:

The answer is 10x^6 * sqrt x

Step-by-step explanation:

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3 0

2 years ago

A flower bed has the shape of a rectangle 9 yards long and 3 yards wide. What is its area in square feet?

Zanzabum

Answer:

243 ft2

Step-by-step explanation:

9*3= 27

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27*9=243 ft2

8 0

3 years ago

Rewrite the equation below so that it does not have fractions.

bearhunter [10]

Answer:

$60+10x=6$

Step-by-step explanation:

Hi there!

$4+\displaystyle \frac{2}{3} x=\frac{2}{5}$

To get rid of the fraction $\displaystyle \frac{2}{3}$ , multiply both sides of the equation by 3 (the denominator):

$3(4+\displaystyle \frac{2}{3} x)=3(\frac{2}{5})\\\\3*4+\frac{3*2}{3}x =\frac{3*2}{5} \\\\12+2x =\frac{6}{5}$

To get rid of the fraction $\displaystyle \frac{6}{5}$ , multiply both sides of the equation by 5 (the denominator):

$\displaystyle 5(12+2x) =5(\frac{6}{5})\\\\5*12+5*2x=\frac{5*6}{5} \\\\60+10x=6$

I hope this helps!

8 0

2 years ago

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Paige measured 4/9 cup of onions, 3/4 cup of celery, and 2/7 cup of carrots. How many cups of vegetables did Paige measure out f

lozanna [386]

1whole 121/252
sorry if it's wrong

3 0

3 years ago

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An electrical shop reduces display goods by 20%. A display TV is sold for £200. What is the usual price of the same TV?

Fynjy0 [20]

200 is 80%
200 / 80 = 2.50 (1%)
2.50 * 100 = £250

Hope this helps.

8 0

2 years ago