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Fofino [41]
4 years ago
9

Factor the trinomial x^2-x-20

Mathematics
2 answers:
k0ka [10]4 years ago
8 0
(X-5)(X+4)=0
So...
X=5 or x=-5
Hope this was helpful :-)
miv72 [106K]4 years ago
5 0
*X^2 - x -20 (x - 5) (x + 4) x - 5 = 0 --------- x + 4 = 0 x = 5 -------- x = -4 ●●●●●●●●●●●●●●●● {3x + 6y = 9 {x - 6y = 11 3x + 6y = 9 x - 6y = 11 ------------------ 4x / / = 20 x = 20 / 4 x = 5 Replace 3x + 6y = 9 3 (5) + 6y = 9 15 + 6y = 9 6y = 9 - 15 6y = -6 y = -6/6 y = -1 Good luck :)
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-2/3y-3/4=5 <br> What is the answer i need to show my work please
vodka [1.7K]

Answer:

y=  -69/8  (negative 69 over 8)

Step-by-step explanation:

First, you have to simplify both sides of the equation:

-2/3y+ -3/4 =5

Second, add 3/4 to both sides:

-2/3y +-3/4 + 3/4=5 +3/4

-2/3y= 23/4

Next, multiply both sides by 3/(-2) (3 over -2)

(3/-2)*(-2/3y)= (3/-2) * (23/4)

<em><u></u></em>

<em><u>y= -69/8</u></em>

7 0
3 years ago
Determine if 0.59136363636363636... is rational or irrational and give a reason for<br> your answer
Reil [10]

The number 0.59136363636363636... is an irrational numbers

<h3>How to determine the number type?</h3>

The number is given as:

Number = 0.59136363636363636...

The three dots at the end of the number implies that the numbe is a non-terminating decimal

All non-terminating decimal are irrational numbers

Hence, the number 0.59136363636363636... is an irrational numbers

Read more about irrational numbers at

brainly.com/question/11919233

#SPJ1

7 0
2 years ago
In the accompanying diagram of ABC ca is extended to D, m∠ABC = 70 and m∠BCA =50 Find m∠DAB
zvonat [6]

Answer:

<em>120 degrees</em>

Step-by-step explanation:

Find the diagram attached.

From the diagram;

Interior angles are m∠BCA and m∠ABC

Exterior angle is m∠DAB

The sum of interior angle of the triangle is equal to exterior

m∠BCA +m∠ABC =m∠DAB

Given

m∠ABC = 70

m∠BCA =50

m∠DAB = 70 + 50

m∠DAB = 120 degrees

<em>Hence the measure of m∠DAB is 120 degrees</em>

6 0
3 years ago
Help Please - Overdue - Volume -
devlian [24]
Ok use a calculator and do 11 x 11 x 4 then 7 x 7 x 4 and add the products
7 0
3 years ago
I neeed this now asap
son4ous [18]

Answer:

What type of math this is text me back!

Step-by-step explanation:

3 0
2 years ago
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