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Pavlova-9 [17]
4 years ago
13

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

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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:

  1. Equation: 65.49 + x = 151.48
  2. Subtract: x = 85.99
7 0
3 years ago
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