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dmitriy555 [2]
3 years ago
6

What is the value of y=4x−2 when x=3 ?

Mathematics
2 answers:
MariettaO [177]3 years ago
7 0

Answer:

y = 10

Step-by-step explanation:

y = 4(3) - 2

y = 12 - 2

y = 10

Roman55 [17]3 years ago
7 0

Answer:

10

Step-by-step explanation:

plug the 3 in and multiply it by the 4. subtract the 2 and thats it!

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Which expressions are equivalent?
White raven [17]

Answer:

option A and E

Step-by-step explanation:

Option A is equivalent because of the commutative law of addition;

(A + B) + C = A + (B + C)

option E is also correct because multiplication rule of inside the brackets.

A - ( - B - C) = A + B + C

7 0
3 years ago
Which choice is equivalent to the expression below √-12
kondaur [170]

Answer:

E

Step-by-step explanation:

using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}, hence

\sqrt{-12}

= \sqrt{4(3)(-1)} = \sqrt{4} × \sqrt{3} × \sqrt{-1} [\sqrt{-1} = i]

= 2i\sqrt{3} → E


7 0
3 years ago
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Please help me, I really need help
Dominik [7]

Answer:

23

Step-by-step explanation:

8 0
3 years ago
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PLEASE HELP MEH IM NEED THIS NOW PLEZZ<br><br> What is x ? -2x + 3 &lt; 5
algol13

Answer: x>-1

Step-by-step explanation: I know this because I solved this equation. I know that is not a good explanation but I know it is right.

8 0
3 years ago
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group of 30 students from your school is part of the audience for a TV game show the total number of people in the audience is 1
Soloha48 [4]
<h2>Answer:</h2><h2>The theoretical probability of four students from your school being selected as contestants out of 8 possible contestants spots =  \frac{14}{165}</h2>

Step-by-step explanation:

The number of students participated  = 30

Total audience = 150

By probability , to find the solution = \frac{n(E)}{n(S)}  

where n(E) is the number of favorable outcomes,

n(S) is the number of total outcomes.

 n(S) is the number of ways any 8 students can by picked from the audience=  \frac{8}{140}

 n(E) is the probability of picking four students from our school and five students from another school.

n(E) = (\frac{4}{30}) (\frac{4}{110}) = \frac{16}{3300}

\frac{n(E)}{n(S)}  = \frac{\frac{16}{3300}}{\frac{8}{140}} = \frac{14}{165}

7 0
3 years ago
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