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Dafna1 [17]
3 years ago
15

I need help on this question can someone please help me?

Mathematics
2 answers:
just olya [345]3 years ago
5 0
Opposite angles in a parallelogram are equal so
4n - 2 = 2n + 32
you move the 2n to the left side of the = (trying to get all the n values on one side of the equation) and move the - 2 to the right side of the =
when you move a value to the opposite side of the = the thing becomes the opposite. so 2n is a positive so when you move it to the left it becomes a negative so -2n. the -2 is a minus so when you move it to the right side of the = it becomes a plus so +2
4n - 2n = 32 + 2
you add/subtract the like terms so
2n = 34
then you move the 2 from the 2n to the opposite side of the = as you’re trying to get n on its own. 2n has a hidden multiply (2 x n) so when you move it to the opposite side of the = the multiply becomes the opposite which is divide so the equation is now
n = 34 ÷ 2
n = 17
Svetllana [295]3 years ago
3 0

I really hate these algebra problems pretending to be geometry.  

Anyway angles B and D  are congruent in a parallelogram.  Geometry part done.

4n - 2 = 2n + 32

2n = 34

n = 17

Answer: 17, which is the 3rd choice

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Which graph represents the function f (x) = StartFraction 2 Over x minus 1 EndFraction + 4?
Pepsi [2]

Answer:

On a coordinate plane, a hyperbola is shown. One curve opens up and to the right in quadrant 1, and the other curve opens down and to the left in quadrant 3. A vertical asymptote is at x = 1, and the horizontal asymptote is at y = 4

Step-by-step explanation:

The given function is presented as follows;

f(x) = \dfrac{2}{x - 1} + 4

From the given function, we have;

When x = 1, the denominator of the fraction, \dfrac{2}{x - 1}, which is (x - 1) = 0, and the function becomes, \dfrac{2}{1 - 1} + 4 = \dfrac{2}{0} + 4 = \infty + 4 = \infty therefore, the function in undefined at x = 1, and the line x = 1 is a vertical asymptote

Also we have that in the given function, as <em>x</em> increases, the fraction \dfrac{2}{x - 1} tends to 0, therefore as x increases, we have;

\lim_  {x \to \infty}  \dfrac{2}{(x - 1)} \to 0, and \  \dfrac{2}{(x - 1)}  + 4 \to 4

Therefore, as x increases, f(x) → 4, and 4 is a horizontal asymptote of the function, forming a curve that opens up and to the right in quadrant 1

When -∞ < x < 1, we also have that as <em>x</em> becomes more negative, f(x) → 4. When x = 0, \dfrac{2}{0 - 1} + 4 = 2. When <em>x</em> approaches 1 from the left, f(x) tends to -∞, forming a curve that opens down and to the left

Therefore, the correct option is on a coordinate plane, a hyperbola is shown. One curve opens up and to the right in quadrant 1, and the other curve opens down and to the left in quadrant 3. A vertical asymptote is at x = 1, and the horizontal asymptote is at y = 4.

5 0
2 years ago
Find the volume of the cone. Round your answer to the nearest tenth.
Sergeu [11.5K]

9514 1404 393

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  115.5 cubic yards

Step-by-step explanation:

The volume is given by the formula ...\

  V = 1/3πr²h

Here the diameter is 7 yards, so the radius is 3.5 yards. The volume is then ...

  V = (1/3)π(3.5 yd)²(9 yd) = 36.75π yd³ ≈ 115.454 yd³

The volume of the cone is about 115.5 cubic yards.

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