Which Two Numbers Add Up To Negative 26 And Multiply To 11?

Answers

Answer 1

Answer: xy=11
x+y=-26

x+y=-26
minus x both sides
y=-26-x

sub for y
x(-26-x)=11
-26x-x^2=11
add 26x+x^2 both sides
x^2+26x+11=0

ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^(2)-4ac} }{2a}$

a=1
b=26
c=11

x= $\frac{-26+/-\sqrt{26^(2)-4(1)(11)} }{2(1)}$
x= $(-26+/-√(676-44) )/(2)$
x= $(-26+/-√(632) )/(2)$
x= $(-26+/-2√(158) )/(2)$
x= $-13+/-√(158)$

x= $-13+√(158)$ or $-13-√(158)$

aprox

x=-0.420195 or -25.5698

those are the numbers

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what is the slope intercept form of the linear equation with a graph that passes through (-2,2) and is perpendicular to the graph of y=1/3x+9

Answers

$\text{The slope-intercept form}\ y=mx+b.\n\nLet\nk:y=m_1x+b_1\nl:y=m_2x+b_2\n\nl\ \perp\ k\iff m_1m_2=-1\n------------------------\n\text{Let}\ k:y=(1)/(3)x+9\ \text{and}\ l:y=mx+b\n\nl\ \perp\ k\iff(1)/(3)m=-1\qquad|\cdot3\to m=-3\n\nl:y=-3x+b\n\n\text{Substitute the coordinates of the point (-2, 2) to the equation}\n\text{of the line}\ l:\n\n2=-3(-2)+b\n2=6+b\qquad|-6\n-4=b\to b=-4\n\n\boxed{Answer:\ y=-3x-4}$

What does 4.875 mean in fraction

Answers

4.875 as a fraction is 4 7/8.

* Write decimal as a fraction by putting 1 as denominator, so 4.875/1

* Multiply numerator and denominator by 10 x 10 x 10 to get 4875/1000

* Simplify the fraction so it gets 39/8

* Turn into a mixed number and get 4 7/8

The decimal number 4.875 is equal to the fraction 4 7/8.

The decimal number 4.875 can be expressed as a fraction in the following way:

4.875 = 4 + 0.875

The whole number part, 4, can be written as a fraction with a denominator of 1: 4/1.

The decimal part, 0.875, can be expressed as a fraction by considering the digits after the decimal point.

Since there are three digits after the decimal point, we can place the decimal number over a denominator of 1 followed by three zeros: 875/1000.

Combining the whole number and decimal parts, we have:

4.875 = 4 + 0.875 = 4 + 875/1000

To simplify this fraction, we can divide both the numerator and denominator by their greatest common divisor, which in this case is 125:

4.875 = 4 + 875/1000 = 4 + (875/125) / (1000/125) = 4 + 7/8

Therefore, the decimal number 4.875 is equal to the fraction 4 7/8.

Learn more about fraction click;

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How can you write 0.15 in a fraction

Answers

In order to write a decimal as a fraction, you simply need to put all the numbers in the decimal as the numerator of the fraction, and then put a multiple of 10 with as many zeros as there are numbers to the right of the decimal point as the denominator.

0.15 = $(15)/(100)$

We can reduce our resulting fraction, since both numerator and denominator are divisible by 5.

$(15 / 5)/(100 / 5) = (3)/(20)$

Which is our final answer.
0.15 written as a fraction is $(3)/(20)$ .
Hope that helped! =)

15/100, since theres 2 digits in 15 the very last digit is the "100th" decimal place

I need help! With whole sheet

Answers

Answer:

Question 1

Area = Length x Width

Width = Area / Length

25/54 / 5/9

This is the same as:

25/54 x 9/5

225/270 is your answer

this can simplify to 5/6

Question 2

5/12 x 5/6 =

find common denominator

5/12 x 10/12 = 15/12 = 1 1/4 ft.

the seventh grade class enrollment went from 80 students to 60 students after summer vacation what was the percent decrease?

Answers

the percent decrease was 25%
because the number of students decreased by 20 students
and 20 is 25% of 80
therefore, the percent of decrease = 25%
can i please get brainliest answer?

a square section of a kitchen floor is made of 49 square tiles. how many tiles are on each side of the square section of the kitchen floor?

Answers

I found the answer to this question by finding the square root of 49 because the section is a square. The square root of 49 is 7, so there are 7 tiles on each side of the floor.

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