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3 years ago

2 step equations that equal 18

Mathematics

1 answer:

Colt1911 [192]3 years ago

3 0

Answer:

(2x6)+6

2x6=12

12+6=18

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AB = x + 3

torisob [31]

Answer:

Step-by-step explanation:

IF it is a SYMMETRIC kite

CB = CD

x + 4 = 2x - 1

x - x + 4 + 1 = 2x - x - 1 + 1

5 = x

AB = AD

x + 3 = 3x - y

5 + 3 = 3(5) - y

8 = 15 - y

y = 7

4 0

2 years ago

Answer my math question I asked so many times I lost most of points by

wariber [46]

Answer:

a=1

b=2

c=-8

y-intercept: (0, -8)

Line of symmetry calculation: x = -2/(2*1)

Line of symmetry: -1

Opens up because a > 0

Minimum

Vertex: (-1, -9)

Domain: -∞ < x < ∞ (no domain constraints)

Range: [-9, ∞]

Step-by-step explanation:

4 0

2 years ago

An open-top box with a square base is to have a volume of 4 cubic feet. Find the dimensions of the box (in ft) that can be made

Lemur [1.5K]

Answer:

The dimension of box= $2ft\times 2ft\times 1ft$

Step-by-step explanation:

We are given that

Volume of box=4 cubic feet

Let x be the side of square base and h be the height of box

Volume of box= $lbh=x^2h$

$4=x^2h$

$h=\frac{4}{x^2}$

Now, surface area of box,A= $x^2+4xh$

$A=x^2+4x(\frac{4}{x^2})=x^2+\frac{16}{x}$

$\frac{dA}{dx}=2x-\frac{16}{x^2}$

$\frac{dA}{dx}=0$

$2x-\frac{16}{x^2}=0$

$2x=\frac{16}{x^2}$

$x^3=8$

$x=2$

$\frac{d^2A}{dx^2}=2+\frac{32}{x^3}$

Substitute x=2

$\frac{d^2A}{dx^2}=2+\frac{32}{2^3}=2+4=6>0$

Hence, the area of box is minimum at x=2

Therefore, side of square base,x=2 ft

Height of box,h= $\frac{4}{2^2}=1 ft$

Hence, the dimension of box= $2ft\times 2ft\times 1ft$

5 0

2 years ago

Please help me with this question

Natali5045456 [20]

Again, In this question too you need to substitute the given variable values into the original expressions. Here, "x" is given as a value of "12" and the variable of "y" is given as as value of "2". A single variable of "x" in the numerator is given in the expression. On the denominator the variable of "y" with a value of "2" is multiplied by a numbered value of "3". So, now showing this by the help of LaTeX.

$\mathbf{Since, \: x = 12, \: y = 2}$

$\mathbf{\therefore \quad \dfrac{12}{3 \times 2}}$

$\mathbf{\therefore \quad \dfrac{12}{6}}$

$\mathbf{2}$

$\boxed{\mathbf{\underline{\therefore \quad Final \: \: Answer \: \: is: \: B) \: 2}}}$

Hope it helps.

3 0

3 years ago

Whats the answer to x+3/4=5/8

anyanavicka [17]

Answer:

Exact Form:

x=−18x=-18

Decimal Form:

x=−0.125x=-0.125

Step-by-step explanation:

Move all terms not containing xx to the right side of the equation

3 0

3 years ago

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