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4 years ago

Y=3x2y-5x=4 I need the work and answer for it

1 answer:

3 0

U plug in the y
2 (3x) -5x=4
simplify
6x -5x =4
solve
x=4
so now you know x=4 so plug that in for x
y= 3(4)
y=12
check your answer
2(12)-5(4)=4
solve
24-20=4
4=4
so you now you got the answer right !

hope that helps!

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the quotient of a number and 2 is the same as the difference of the number doubled and 3. what is the number? 2? -2? or -4 1/2

kotykmax [81]

The answer is 2. Hope this helps!

4 0

3 years ago

HELP ASAP<br> 1. 55% of 140 is<br> 2. 45% of 160 is<br> 3. 95% of 180 is

Vadim26 [7]

Answer:

1) 55 % of 140

55/100 × 140

11/20 × 140

11 × 7

2) 45 % of 160

45/100 × 160

45/5 × 8

9 × 8

3) 95% of 180

95/100 × 180

95/10 × 18

95 /5 × 4

19 × 4

3 0

4 years ago

Read 2 more answers

.Find the unknown angles in each of the following figures and mention the property used

forsale [732]

Answer/Step-by-step explanation:

a. Angle y is vertically opposite the angle that measures 80°. Vertically opposite angles are said to be equal to each other, therefore, y = 80°

x + y + 50° = 180° (sum of angles in a ∆)

x + 80° + 50° = 180 (substitution)

x + 130° = 180°

x = 180° - 130° (subtracting 130 from each side)

x = 50°

b. x + 50° = 120° (sum of the 2 opposite interior angles in a ∆ = the exterior angle of the ∆)

x = 120 - 50 (subtracting 50 from each side)

x = 70°

y + x + 50° = 180° (sum of angles in a ∆)

y + 70° + 50 = 180° (substitution)

y + 120° = 180°

y = 180 - 120 (subtracting 120 from each side)

y = 60°

7 0

3 years ago

Rewrite 8^1/3 using radical notation.

Aliun [14]

The answer is cube root 8

4 0

3 years ago

Please hurry! This is due soon.

kotykmax [81]

Hi!

We can see here that this is a composition question.

And since the composition of g of f of x is x, we can conclude that g(x) is the inverse of f(x) (if you're confused, search up the definition of an inverse function).

To find an inverse function, we can take the f(x) function and change the positions of the x and y variables.

$f(x)=\frac{e^7^x+\sqrt{3}}{2}$