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SCORPION-xisa [38]
3 years ago
14

Suppose x=20, and y=48 in the figure, which is not drawn to scale. Determine the following values. Enter exact answers (as fract

ions), not decimal approximations. (e.g., enter 1/2 not 0.5)
cos(θ)=   

sin(θ)= 

tan(θ)=    

cos(ϕ)=  

sin(ϕ)=  

tan(ϕ)= 


​

Mathematics
1 answer:
Mariana [72]3 years ago
6 0

skip this comment

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How is adding two negative fractions like adding two positive fractions.<br> ples help me
Yuliya22 [10]

Answer:

A negative fraction subtracted from another is the same thing as adding the positive complement of that fraction. Make the denominators (the bottom of the fraction) the same, if they are not already. You can only add halves to halves or quarters to quarters or tenths to tenths and so on. Hope this helps!!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the solution set of x2 + 5x- 5 = 0? oss-355 S +385 o sus S* o {stay -S-345 , 30 O S=5+375 5+3/5 2 0 --375 -5 +385 2
jolli1 [7]

Given the quadratic equation:

x^2+5x-5=0

Using the general solution for quadratic equations:

ax^2+bx+c=0\Rightarrow x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

From the problem, we identify:

\begin{gathered} a=1 \\ b=5 \\ c=-5 \end{gathered}

Then:

x=\frac{-5\pm\sqrt{25+20}}{2}=\frac{-5\pm3\sqrt{5}}{2}

And the solution set is:

\lbrack\frac{-5-3\sqrt{5}}{2},\frac{-5+3\sqrt{5}}{2}]

6 0
1 year ago
Find the value of y.
Ratling [72]

Answer:

61 degrees

Step-by-step explanation:

Since one of the sides is 102, the opposite one will be the same.

so,

102+102+95

= 299

The total is 360 degrees

360-299

= 61 degrees

pls mark me brainliestt :))

4 0
3 years ago
Which graph represents the piecewise-defined function f(x) = StartLayout enlarged left-brace 1st Row 1st column negative 1.5 x +
PilotLPTM [1.2K]

Answer:

  • Option A or first option

Step-by-step explanation:

The function is

f(x) = \left \{ {{-1.5x + 3.5, x

Correct description is the first option with the exception of point (2,0), it should read (2, 0.5)

  • On a coordinate plane, a piecewise function has 2 lines. The first line has an open circle at (2, 0) and then goes up through (1, 2) with an arrow instead of an endpoint. The second line has a closed circle at (2, 6) and goes up through (3, 7) with an arrow instead of an endpoint.

The graph is attached

8 0
3 years ago
Read 2 more answers
Consider the function f(x) = x2 - 6x +8.
MAVERICK [17]

Answer:

A function that has an axis of symmetry at x = 3 is:

f (x) = x ^ 2 - 6x - 1

Step-by-step explanation:

A parabola has an axis of symmetry at x = 3 if the x-value of the vertex is 3.

f(x) = x^2 + 3x + 1 = x^2 + 3x + 9/4 - 5/4 = (x + 3/2)^2 - 5/4 => vertex = (-3/2, -5/4)

f(x) = x^2 - 3x - 3 = x^2 - 3x + 9/4 - 21/4 = (x - 3/2)^2 - 21/4 => vertex = (3/2, -21/4)

f(x) = x^2 + 6x + 3 = x^2 + 6x + 9 - 6 = (x + 3)^2 - 6 => vertex = (-3, -6)

f(x) = x^2 - 6x - 1 = x^2 - 6x + 9 - 10 = (x - 3)^2 - 10 => vertex = (3, -10)

Therefore, f(x) = x^2 - 6x - 1 has an axis of symmetry at x = 3.

Hope This HELPS!!!

8 0
4 years ago
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