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Juliette [100K]
3 years ago
15

Please help me I'm stuck on these.. Thanks​

Mathematics
1 answer:
ra1l [238]3 years ago
3 0

Answer:

Step-by-step explanation:

3(n+4)=1/2(6n+4)

We simplify the equation to the form, which is simple to understand

3(n+4)=1/2(6n+4)

Simplifying:

3*(n+4)=0.5*(6n+4)

Reorder the terms in parentheses

+(+3n+12)=0.5*(6n+4)

Remove unnecessary parentheses

+3n+12=0.5+*(+6n+4+)

Reorder the terms in parentheses

+3n+12=+(+3n+2)

Remove unnecessary parentheses

+3n+12=+3n+2

We move all terms containing n to the left and all other terms to the right.

+3n-3n=+2-12

We simplify left and right side of the equation.

n=-10

0=-10

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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Can anyone help me with this problem? It's a review.
kifflom [539]

Answer:

The point (0,-2) is the solution to the problem. Substitue 0 into x, the answer is -2 which matches f(x), or y value.

Step-by-step explanation:

8 0
2 years ago
Mario writes the equation (x+y)2=z2+4(12xy)(x+y)2=z2+4(12xy) to begin a proof of the Pythagorean theorem.
Verizon [17]

Answer:

Step-by-step explanation:

( x + y ^)2 finds the area of the outer square by squaring its side length.

z²  + 4( 1/2xy )  finds the area of the outer square by adding the area of the inner square and the four triangles.

3 0
3 years ago
Read 2 more answers
The pattern for a scarf is shown<br> at right what is the area of this car for use 3.14
Tems11 [23]

Answer:

area of circle=pi times radius^2

diameter/2=radius

area of rectangle=length times width

rectanlge-circle=scarf

rectanlge=28 by 15=28*15=420

circle, diameter is 15 so radius is 15/2=7.5

area=pi7.5^2=pi56.25=3.14*56.25=176.625

so

rectangle-circle=420-176.625=243.375 square inches

the area of the scarf is 243.375 square inches

Step-by-step explanation:

7 0
2 years ago
Can someone explain this to me.
almond37 [142]

Answer:

option D

3*(\sqrt{x}+\sqrt{x-3})

Step-by-step explanation:

Given in the question an expression,

\frac{9}{\sqrt{x} -\sqrt{x-3}}

Step 1

Divide and multiple by \sqrt{x}+\sqrt{x-3} to remove radical sign from denominator.

\frac{9}{\sqrt{x} -\sqrt{x-3}}*\frac{\sqrt{x} +\sqrt{x-3}}{\sqrt{x} +\sqrt{x-3}}

Step 2

Apply a² - b² = (a+b)(a-b)

\frac{9*\sqrt{x}+\sqrt{x-3}}{\sqrt{x^{2}}-\sqrt{(x-3)^{2}}}}

Step 3

\frac{9*\sqrt{x}+\sqrt{x-3}}{x-x+3}

Step 4

\frac{9*\sqrt{x}+\sqrt{x-3}}{3}

Step 5

3*(\sqrt{x}+\sqrt{x-3})

7 0
3 years ago
What is the answers to y=2x for x?
san4es73 [151]

The answer would be 2 times whatever the value of x would be

6 0
3 years ago
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