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VLD [36.1K]
3 years ago
9

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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Step-by-step explanation:

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In your own words, explain the steps you would need to take to find slope from data in a table. Brainly work your magic.
mr_godi [17]

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In order to find the slope, you need to find the difference in the x values and the difference in the y values. To do this, you write out y2-y1/x2-x1, insert your x and y values, and get your answer. Then, you find your y-intercept (where the x value is 0).

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What is 589 + 983 math question?
zhenek [66]
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3 years ago
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Use the geometric mean to find the 7th term in a geometric sequence if the 6th term is 12 and the 8th term is 27. 20 19.5 18 17
Lesechka [4]
A₆ =12

a₇ = ?? = x

a₈ 27

In this case x is the geometric mean & as per the formula
geometric mean of 2 numbers =√(a₆ * a₈) = √(12*27)
& x=18.
Proof:
Find the common ratio between a₇ & a₆ ==> = ( x) / 12
now find the common ration between a₈ & a₇ ===> =27 / (x)
x/12 = 27/x ===> x² = 12*27 ==> x² = 324 & x =√324 = 18
7 0
3 years ago
The distance between two cities on a map is 4.5cm. The map scale is 1cm : 40 miles. What is the actual distance between the two
eimsori [14]

Answer: 180 miles

Step-by-step explanation: 1cm=40 miles. There is 4.5 so 4*40=160 and there is also half a centimeter, which is 20 miles. 160+20

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