All categories

3 years ago

What does it mean to approximate the zeros? And how would I do that?

Mathematics

1 answer:

I am Lyosha [343]3 years ago

8 0

Answer:

x ≈ - 1.56

x ≈ 2.56

Step-by-step explanation:

x^2 - x = 4

x^2 - x + 1/4 = 17/4

( x - 1/2 )^2 = 17/4

x - 1/2 =Sqrt[17]/2 or x - 1/2 = - (Sqrt[17]/2)

x = 1/2 + Sqrt[17]/2 or x = 1/2 - (Sqrt[17]/2)

The formula - b +- srt(b^2 - 4ac) / 2a could also be used

You might be interested in

Which expression is equivalent to 5y^3/(5y)^-2

Serggg [28]

Answer:

5^3 y^5

125 y^5

Step-by-step explanation:

5y^3/(5y)^-2

Distribute the exponent in the denominator

5y^3/(5 ^-2 y^-2)

A negative exponent in the denominator brings it to the numerator

5y^3 5 ^2 y^2

Combine like terms

5 * 5^2 * y^3 5^2

We know that a^b * a^c = a^(b+c)

5^(1+2) * y^( 3+2)

5^3 y^5

125 y^5

6 0

3 years ago

4. How much interest does a $318 investment earn at 9% over two years?

maksim [4K]

Answer:

In two years, it will get $57.24 interest.

Step-by-step explanation:

6 0

3 years ago

Find the Volume A.108 B.54 C.18 D.36

Paha777 [63]

3x9x4 = 108
Answer is A

4 0

2 years ago

Read 2 more answers

What are the minimum, first quartile, median, third quartile, and maximum of the data set? 2, 13, 17, 14, 9, 3, 16, 12

Alex777 [14]

So before anything, rearrange the data so that it's in ascending order: {2,3,9,12,13,14,16,17}

Next, the minimum and maximum are as they seem: the smallest and largest numbers in the data. Looking at our data, 2 is our minimum and 17 is our maximum.

Next, to find the median, find the number that is in the middle of the data set. If there isn't one number in the middle, find the average of the two middle numbers to get your median:

$\{2,3,9,\overbrace{\boxed{12,13,}}^{\textsf{middle numbers}}14,16,17\}\\\\\frac{12+13}{2}\\\\\frac{25}{2}\\\\12.5$

The median is 12.5.

Next, to find the first quartile, or the lower quartile, find the "median" of the numbers to the left of the median.

$\overbrace{\{2,\boxed{3,9,}12,}^{\textsf{left of median}}13,14,16,17\}\\\\\frac{3+9}{2}\\\\\frac{12}{2}\\\\6$

The first quartile is 6.

Next, to find the third quartile, or the upper quartile, find the "median" of the numbers to the right of the median.

$\{2,3,9,12,\overbrace{13,\boxed{14,16,}17\}}^{\textsf{right of median}}\\\\\frac{14+16}{2}\\\\\frac{30}{2}\\\\15$

The third quartile is 15.

3 0

2 years ago

The environment club is having a trash pickup day. There are 130 people signed up to help. For the trash pickup day they will wo

WINSTONCH [101]

Answer: 33 groups

Step-by-step explanation:

Number of people that signed for help = 130 people

Number of people that can join a group = 4.

Number of groups that will be formed will be:

= Number of people that signed for help / Number of people that can join a group

= 130/4

= 32.5

= 33 groups

Since there'll be a remainder of 2 people, they will form a new group making 33 groups.

8 0

3 years ago