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Pavel [41]
3 years ago
11

Use a graphing calculator to approximate the vertex of the graph of the parabola defined by the following equation.

Mathematics
1 answer:
vitfil [10]3 years ago
3 0

Given:

The equation of a parabola is:

y=-2x^2+7x+4

To find:

The vertex of the graph of the given equation by using a graphing calculator.

Solution:

We have,

y=-2x^2+7x+4

By using the graphing calculator, draw the graph of the given equation as shown below.

From the below graph it is clear that the function is maximum at point (1.75,10.125).

So, the vertex of the given equation is (1.75,10.125).

Therefore, the correct option is c.

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Is it c.? i am unsure
PtichkaEL [24]

Answer:

11+6i

Step-by-step explanation:

We can start by combining like terms, the ones with i, and the ones with one as a factor. Since 3+8 is 11 and 4i+2i is 6i, our answer is C. 11+6i

8 0
3 years ago
Read 2 more answers
Sofia surveyed students at her school
IRISSAK [1]

Answer:

English,French,Vietnamese,Chinese,Ukrainian,other

Step-by-step explanation:

so basically the question is asking for us to convert the fractions into decimals and then, order the them from greatest to least

Q:how do you convert a fraction into a decimal?

A: numerator divided by denominator for example if you had to convert 7/9 into a decimal you would do 7 divided by 9!!!

English:1/4 is equivalent to 0.25

Ukrainian:1/20 is equivalent to 0.05

Vietnamese:0.02 is already in decimal form

French:1/10 is equivalent to 0.1

Chinese:0.02 is already in decimal form

Other:0.06 is already in decimal form

<em>Now we got all the fractions converted into decimals</em>

0.25,0.05,0.02,0.1,0.02,0.06

Now we have to put these number from greatest to least

Q:how do we put it in greatest to least?

A: if there are more zeros in the place value its more likely to be a small number for example 0.06 is smaller than 0.3

0.25 is the greatest

0.1 is the second greatest

0.02 is the third greatest

0.02 is the third greatest

0.05 is the 4th greatest

0.06 is the 5th greatest

Now we got them from greatest to least so we match the decimal numbers to the language

Starting from greatest to least is: English,French,Vietnamese,Chinese,Ukrainian,other

pls mark me brainliest

6 0
3 years ago
The volume of a sphere is 367 in<br> What is the radius of the sphere?
MrRa [10]
Radius is 4.44.
explanation:
v=4/3 pi r^3
r= ( 3 v/4 pi) ^1/3
6 0
3 years ago
Need help with this please
Galina-37 [17]
The second graph is correct.    Because the first equation is <= -x-1, it must fall under that line: only the second and fourth graphs do so.  The second equation, >=2x+4, means it must fall above that line: only the second and third graphs do so.  
8 0
4 years ago
Read 2 more answers
Help asap :)))))) ...
saw5 [17]
The scale factor is 1:3
6 0
3 years ago
Read 2 more answers
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