All categories

4 years ago

Determine the factors of X2 -12 X -20

Mathematics

1 answer:

mafiozo [28]4 years ago

4 0

Answer:

It doesn't factor nicely

Step-by-step explanation:

x = 13.48331477, -1.483314774

You might be interested in

A rectangular park is 50 meters wide and 90 meters long. Give the length and width of another rectangular park that has the same

larisa [96]

Answer:

$l = 100\,m$ and $w = 40\,m$

Step-by-step explanation:

The formulas for the area and perimeter of a rectangle are, respectively:

$A = w\cdot l$

$p = 2\cdot (w + l)$

The perimeter is equal to:

$p = 2\cdot (50\,m + 90\,m)$

$p = 280\,m$

Area is likewise equal to:

$A = (50\,m)\cdot (90\,m)$

$A = 4500\,m^{2}$

Then, equations are now described:

$A = w \cdot l$

$140\,m = w + l$

Likewise, the equation of area is simplified afterwards:

$A = (140\,m - l)\cdot l$

$A = 140\cdot l - l^{2}$

The area is reduced inasmuch as length is increased. Let assume that length is 100 meters. The length and width are described herein:

$l = 100\,m$ and $w = 40\,m$

7 0

3 years ago

Pick a blue marble , a green marble , and another blue marble from a bag of 2 blues, 4 reds , 4 greens what is the probability

trapecia [35]

i hope my answer help you

Step-by-step explanation:

the probability of pick a blue marble =2/10 ( simplest form =1/5)

the probability of pick a green marble =4/10

the probability of pick another blue marble =2/10 ( simplest form =1/5)

7 0

3 years ago

The formula for the surface area of a cube is SA=6s2, where is a is the length of one side of the cube if s=1/4 of a unit, what

aksik [14]

<h2>The surface area of the cube is 0.375 square units.</h2>

Step-by-step explanation:

Given : The formula for the surface area of a cube is $SA=6s^2$ , where s is the length of one side of the cube if $s=\frac{1}{4}$ of a unit.

To find : What is the surface area, in square units, of the cube?

Solution :

The formula for the surface area of a cube is $SA=6s^2$

We have given, $s=\frac{1}{4}$

Substitute in the formula,

$SA=6(\frac{1}{4})^2$

$SA=6\times \frac{1}{16}$

$SA= \frac{3}{8}$

$SA=0.375$ square units.

Therefore, the surface area of the cube is 0.375 square units.

5 0

3 years ago

5n+35=75 what is the answer

Sergio [31]

Answer:

n=8

Step-by-step explanation:

5(8)=40

40 +35=75

glad to help:)

3 0

3 years ago

Read 2 more answers

The total for the two items (without tax) was $151.48. The price of the backpack was $65.49. What was the price of the calculato

miskamm [114]

Answer:

The price of the calculator was $85.99

Step-by-step explanation:

Equation: 65.49 + x = 151.48
Subtract: x = 85.99

7 0

3 years ago