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3 years ago

6

Use the graph or table to write a linear function that relates to y to x. I need help on answering number 8, please and thank yo

u!

1 answer:

siniylev [52]3 years ago

6 0

Answer: y = 2/1 x 0

Step-by-step explanation:

Y=mx+b

2 and 1 are the “rise and run” (m) (from one point to the next, you must go up 2 units then right 1 unit)

The y intercept (b) is the point where it is on the y axis but 0 on the x axis, so 0

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A peer is having difficulty finding angle measures using trigonometric ratios in a right triangle. Create an example to demonstr

frosja888 [35]

Please see diagram:
A right triangle has 3 main trigonometric ratios. These ratios are the relationships between different sides of the triangle, how large one side is compared to the other side. If you have every angle, in degrees, of a triangle, then you can figure out the relation between the lengths of the three sides. Additionally, you can figure out the value of the angles, given the sides of the triangle.
In the diagram, we are interested in the trigonometric ratios with respect to angle a.

You see in the diagram that sine, cosine, and tangeant are described as their ratios: (one way to remember: SohCahToa
sine = opposite / hypotenuse
cosine = adjacent / hypotenuse
tangeant = opposite / adjacent.

cosecant, secant, and cotangents are just the reciprocals of these ratios:
cosecant = 1 / sin
secant = 1 / cosine
cotangeant = 1 / tangeant

8 0

3 years ago

What’s the exponential form of 64

Kobotan [32]

The exponential form of 64 is $8^{2}$ .

The square root of 64 is 8. So 8 x 8 = 64.

7 0

3 years ago

Ok this one has way to many numbers for me. I have no clue at all on this one please help Thank you so much

victus00 [196]

The area of the lawn is 6144 square ft.

4 0

4 years ago

Complete the square to find the minimum value of the expression 4x2 + 8x + 23.

Tcecarenko [31]

So you need to come up with a perfect square that works for the x coefficients.
like.. (2x + 2)^2
(2x+2)(2x+2) = 4x^2 + 8x + 4
Compare this to the equation given. Our perfect square has +4 instead of +23. The difference is: 23 - 4 = 19

I'm going to assume the given equation equals zero..

So, If we add subtract 19 from both sides of the equation we get the perfect square.

4x^2 + 8x + 23 - 19 = 0 - 19
4x^2 + 8x + 4 = - 19
complete the square and move 19 over..
(2x+2)^2 + 19 = 0
factor the 2 out becomes 2^2 = 4
ANSWER: 4(x+1)^2 + 19 = 0

for a short cut, the standard equation
ax^2 + bx + c = 0 becomes a(x - h)^2 + k = 0
Where "a, b, c" are the same and ..
h = -b/(2a)
k = c - b^2/(4a)

Vertex = (h, k)
this will be a minimum point when "a" is positive upward facing parabola and a maximum point when "a" is negative downward facing parabola.

3 0

3 years ago

A triangular flag has an area of 22 cm². Jon measures the height as 8 cm, what is the base length?

dedylja [7]

The base length is 5.5 cm.

Explanation:

Area of triangle = base x height x 1/2

Let b cm be the base length of the triangular flag.

22 = b x 8 x 1/2

22 x 2 ÷ 8 = b

b = 44 ÷ 8

b = 5.5

4 0

3 years ago