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3 years ago

Function- f(x)=-x^2+4x+6

Mathematics

1 answer:

anygoal [31]3 years ago

6 0

Answer:

At the positive integer value of x=7 the quadratic function begin to exceed the linear function

Step-by-step explanation:

we have

using a graphing tool

see the attached figure

For x < -1.405 and x > 6.405 the quadratic function begin to exceed the linear function

At the positive integer value of x=7 the quadratic function begin to exceed the linear function

Step-by-step explanation:

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A person earning $4,600 a month gets a raise and makes $5290 the following months. What is the percent increase in salary?

Talja [164]

The answer is 15 percent.

5290-4600=690

690/4600=0.15

Covert the 0.15 into percent which is 15 percent

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3 years ago

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What is the average of the data (round your answer to one decimal place)

SVEN [57.7K]

By adding all the numbers and dividing by 7 ( the amount of numbers) you know that the answer will be about 166.3

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3 years ago

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Which is traveling faster, a car whose velocity vector is 201 + 25), or a car whose velocity vector is 30i, assuming that the un

Snowcat [4.5K]

Answer:

2nd car is running faster than the first car by 2.01 units.

Step-by-step explanation:

Let's assume that

the velocity of first car,

$v_1\ =\ 20i\ +\ 25j$

and the velocity of second car

$v_2\ =\ 30i$

=> speed of first car,

$u_1\ =\ \sqrt{(20)^2+(25)^2}$

$=\ \sqrt{400+625}$

$=\ \sqrt{1025}$

= 32.01 units

and speed of second car,

$u_2\ =\ \sqrt{(30)^2+(0)^2}$

= 30 units

$u_2\ -\ u_1\ =\ 32.01\ -30$

= 2.01 units

Hence, 2nd car is running faster than the first car by 2.01 units.

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3 years ago

How many different 6-digit numbers can be formed by arranging the digits in 332345?

Feliz [49]

Answer- 120

Solution-

There are digits to be arranged,they are {3,3,2,3,4,5}. And from those ,3 digits are repeated .

so the total number of distinct number that can be formed = $\frac{6!}{3!}$ = $\frac{720}{6}$ = <em>120</em><em> </em>(ans)

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3 years ago

What is the highest common factor of 135 and 81

wolverine [178]

$135|3\\.\ 45|
3\\.\ 15|3\\.\ \ 5|5\\.\ \ 1|\\135=\fbox3\cdot\fbox3\cdot\fbox3\cdot5\\\\81|3\\27|3\\.\ 9|3\\.\ 3|3\\.\ 1|\\81=\fbox3\cdot\fbox3\cdot\fbox3\cdot3\\\\the\ highest\ common\ factor\ of\ 135\ and\ 81\\\\=\fbox3\cdot\fbox3\cdot\fbox3=\boxed{\boxed{27}}$

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3 years ago