MATHEMATICS HIGH SCHOOL

Solve 2y+4x=8 for​y​. Thenfindthevalueof​y​foreachvalueof ​x​=-2,1,3. ​y​ = _____________________ (equation)When x=-2, y=______ x=1, y=______ x=3, y=______

Answers

Answer 1
Answer:

Answer: Answers below

Step-by-step explanation:

2y+4x=8

Solve for y.

2y+4x-4x=8-4x\n2y=8-4x\ny=(8-4x)/(2)

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When x = -2; y = 8

y=(8-4(-2))/(2)\ny=(8+8)/(2)\n y=(16)/(2)\n y=8

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When x = 1 ; y = 2

y=(8-4(1))/(2)\ny=(8-4)/(2)\n y=(4)/(2)\n y=2

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When x = 3 ; y = -2

y=(8-4(3))/(2)\ny=(8-12)/(2)\n y=(-4)/(2)\n y=-2

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7+a/ 3 = 5
What is the answer

Answers

Answer:

a=8

Step-by-step explanation

Each day, 895 people visit the museum. How many people visit the museum in 5 days

Answers

Answer:

the correct answer is 895*5=4505

Step-by-step explanation:

hope it helps

What does n + 4n- 22=5 k equal?

Answers

5n-22=5

5n=5+22

5n=27

n=27 divide 5

N=27/5 or N=5.4

Which of the the following could be the ratio between the lengths of the two legs of a 30-60-90?Check all that apply.                                                                                                (A)Sqrt2:Sqrt3 (B)1:Sqrt2 (c)Sqrt2:Sqrt2 (D)2Sqrt3:Sqrt6 (E)1:Sqrt3 (F)Sqrt3:Sqrt3

Answers

This is worth remembering:

In a 30-60-right triangle,
-- the side opposite the 30 is 1/2 the hypotenuse
-- the side opposite the 60 is (1/2 the hypotenuse) times (square root of 3).

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I believe Choice-'E' is the only one you could make with the above rule.
(a)/(a √(3) ) = (1)/( √(3) ) \ \ \ \Rightarrow\ \ \ Ans.\ E\n\n(2a)/(a √(3) ) = (2)/( √(3) )=(2\cdot √(2) )/( √(3)\cdot √(2) )=(2 √(2) )/( √(6) ) \neq (2 √(3) )/( √(6) ) \n\n (a)/(2a ) = (1)/( 2 )

5^3x=27, what is the value of 5^2x?

Answers

5^(3x)=27\n\n\left(5^x\right)^3=3^3\iff5^x=3\n\n\left(5^x\right)^2=3^2\n\n5^(2x)=9
5^(3x)=27\n 5^x=3\n 5^(2x)=3^2=9

If p is true and q is false, the p -> q is always, sometimes, never true.When p is false and q is true, then p or q is always, sometimes, never true.

If p is true and ~ q is false, then p -> ~ q is always, sometimes, never false.

If p is true and q is true, then ~ p -> ~ q is always, sometimes, never true.

If p -> q is true and q is true, then p always, sometimes, never is

Answers

1. If p is true and q is false, the p -> q is never true.

2. When p is false and q is true, then p or q is always true.

3. If p is true and ~ q is false, then p -> ~ q is never false.

4. If p is true and q is true, then ~ p -> ~ q is always true.

5. If p -> q is true and q is true, then p is always true.

Further Explanation:

The logic gates are used here.

Here, the symbol -> is for implication. Implication p-> q means that if p is true then q must be true.

So let us look at all the questions one by one.

1. If p is true and q is false, the p -> q is always, sometimes, never true.

p -> q

true -> false

The true should imply true so the given statement will never be true.

2. When p is false and q is true, then p or q is always, sometimes, never true.

false or true

We know that in or gate even if one input is true, the whole output is true. So this statement will be always true given p is false and q is true.

3. If p is true and ~ q is false, then p -> ~ q is always, sometimes, never false.

This translates to:

true -> true

So it will never be false.

4. If p is true and q is true, then ~ p -> ~ q is always, sometimes, never true.

This translates to:

false -> false

This will always be true.

5. If p -> q is true and q is true, then p is always, sometimes, never true.

If p->q is true and q is true then p will always be true. "Implies to" states that in p->q, in order for q to be true p has to be true. So p will always be true.

Learn more at:

#LearnwithBrainly

Answer:

Your answer is: Always true

Step-by-step explanation:
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