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hodyreva [135]
2 years ago
11

Solve the system of equations using subtraction. 2x - 4y = - 12 2x + y = 13​

Mathematics
1 answer:
alisha [4.7K]2 years ago
7 0
First can you change
2x + y = -12
To have y as the subject

Looks like y = ???
You might be interested in
Pleaseee help I need fast and right
Alinara [238K]

Answer: e. x≠2             f. x≥-1/2

Step-by-step explanation:

Domain is basically the x value of a function.

----------------------------------------------------------------

Question e.

g(x)=5/(2-x)

First, keep in mind, the denominator of a fraction can not be zero or else it will be undefined.

Since x is in the denominator: 2-x≠0

2-x≠0

<h2>    x≠2 Yes, this is the domain</h2>

----------------------------------------------------------------

Question f

h(x)=√(2x+1)

For a standard square root, the value inside can't b negative

So 2x+1≥0

        2x≥-1

<h2>           x≥-1/2 Yes, this is the domain</h2><h2 />

Hope this helps!! :)

Please let me know if you have any question

8 0
3 years ago
If 3% of ties sold in the United States are bow ties, what is the probability of randomly selecting three ties that were purchas
Luda [366]
Given that 3 ties were selected and the probability of selecting a bow tie is 3%, the probability of selecting 3 bow ties will be:
P(selecting 3 ties)=P(selecting a bow tie)*P(selecting a bow tie)*P(selecting a bow tie)
=(0.03)*(0.03)*(0.03)
=0.000027
7 0
3 years ago
From a well shuffled deck of 52 cards, the probability of NOT drawings a red-face card is ______.
Gnom [1K]

Answer:

Option "d" might be 11/13

Step-by-step explanation:

Red face cards=8. ( heart and Diamond)

Remove this 8 cards from 52 cards which gives

=>44

Toal cards =52

PROBABILITY = 44/52=>11/13

5 0
3 years ago
PLEASE HELP MEEE! Simplify 6! − 3!
denpristay [2]

The simplified form of the expression 6! − 3! when it is simplify using the properties of factorial is 3!((6x5x4) − 1).

<h3>What is the simplified form of a term?</h3>

Simplified form of a term is the simplest way of expression the term, which is obtained  by applying the required operations of mathematics.

Factorial is the way to write the product of the numbers from its phase value to 1 in decreasing order. Suppose, the number is 3!. Then it can be written as,

3!=3×2×1

The expression which has to be simplified is,

6! - 3!

It can be written as,

6! - 3!

(6×5×4×3!)-3!

3!((6×5×4)-1)

Thus, the simplified form of the expression 6! − 3! when it is simplify using the properties of factorial is 3!((6x5x4) − 1).

Learn more about the simplified form here;

brainly.com/question/1597694

#SPJ1

4 0
2 years ago
What is a formula for the nth term of the given sequence? 15, 24, 33
KatRina [158]

Answer:

The nth terms: 15,24,33,42,51,60,69,78,87,96,105...

Step-by-step explanation:

The nth term of an arithmetic sequence is given by an = a + (n – 1)d. So, to find the nth term, substitute the given values a = 2 and d = 3 into the formula

5 0
2 years ago
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