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lara [203]
3 years ago
9

The coefficient in the expression 3x - 5 is​

Mathematics
2 answers:
andriy [413]3 years ago
8 0
A coefficient is a constant multiplied by a variable or variables ( which is a symbol, example “x”).

So in this equation the coefficient is 3
vodka [1.7K]3 years ago
3 0

Answer:

coefficient can be taken of a particular number or variable not a whole expression

Step-by-step explanation:

this may help you

coefficient of x is 3

hope it helps you

please mark me as brainlist

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Use the Counting Principle to find the probability. Choosing the 7 winning lottery numbers when the numbers are chosen at random
frozen [14]

Answer:   120

<u>Step-by-step explanation:</u>

Since the order of the numbers doesn't matter we can use the formula:

\dfrac{n!}{r!(n-r)!}\quad \text{where n is the quantity of items and r is the quantity chosen}\\\\\text{In this problem, there are 10 numbers (n = 10) and 7 to be chosen (r = 7)}\\\\_{10}C_{7}=\dfrac{10!}{7!(10-7)!}\\\\.\qquad=\dfrac{10!}{7!3!}\\\\.\qquad=\dfrac{10\times 9\times 8\times 7!}{7!\times 3\times 2\times 1}\\\\.\qquad=10\times 3\times 4\\\\.\qquad=120

7 0
3 years ago
Read 2 more answers
A bag contains 7 blue marbles and 7 green marbles. Which shows the likelihood of choosing a blue marble?
satela [25.4K]
Not 100 %  but I would think as likely as not because you have the same amount of both.  1/2 the chance
8 0
3 years ago
Read 2 more answers
What polynomial function has the zeros -3,1,5
natka813 [3]

Answer:

x³ - 3 x² - 13 x + 15 = 0

Step-by-step explanation:

Basically you can create three factors like this:

(x+3)(x-1)(x-5)=0

That will each represent one zero.

Work it out and you get x³ - 3 x² - 13 x + 15 = 0

6 0
3 years ago
If x + y = 10 and x - y = 4, find the value of x² - y²
morpeh [17]

Answer:

x²-y² = 40

Step-by-step explanation:

Factorising x²-y²:

x²-y² = (x+y)(x-y)

This is due to the property that states:

a²+b² = (a+b)(a-b)

Substituting the given values into the above equation:

x²-y² = (10)(4)

= 40

Hence, x²-y² = 40

<em>Hope this helps and be sure to have a wonderful time ahead at Brainly! :D</em>

8 0
2 years ago
Read 2 more answers
amid has gained weight he now weighs 88kg which is 10% higher than his normal weight. what is his normal weight?
dybincka [34]

Answer:

88*0.9= 79.2 (since it's 10% higher, multiply by .9 to find out what 90% of 88 is

you also could've done 88*0.1=8.8 and then subtract 8.8 from 88 and get 79.2

either way his normal weight is 79.2kg

5 0
2 years ago
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