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3 years ago

Please help me I need this to get a A please help me

Mathematics

2 answers:

stich3 [128]3 years ago

6 0

Answer:

(0,-2)?

Step-by-step explanation:

fgiga [73]3 years ago

5 0

The answer to this question would be -3.5

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Analyze the diagram below and complete the instructions that follow.Find m

vladimir2022 [97]

Answer: 70.5°

Solution:

Call B, the measure of the angle CBA

cos(B) = adjacent-leg / hypotenuse = 3 / 9 = 1 / 3

=> B = arc cos (1/3) ≈ 70.5°

I will calculate other measures for you, trying to cover the most common ratios: sine, cosine, tangent

1) (segment CA)^2 + (segment BC)^2 = (hypotenuse)^2

=> (segment CA )^2 = (hypotenuse)^2 - (segment BC)^2 = 9^2 - 3^2 = 81 - 9 = 72

=> segment CA = √72 = 6√2

2) sin(B) = opposite-leg / hypotenuse = 6√2 / 9 =2√2 / 3

3) sin(A) = cos(B) = 1/3

4) cos(A) = sin(B) = 2√2 / 3

5) tan(B) = opposite-leg / adjacent-leg = (2√2 / 3 ) / 3 = 2√2 / 9

6) tang(A) = 3 / (2√2 /3) = 9 /( 2√2) = 9√2 / 4

3 0

4 years ago

In order to graph a line your equation must be set equal to y. If I gave you the following equation would you be able to graph i

aliina [53]

Answer:

Step-by-step explanation:

Graphing the equation in the form it is given is eventually hard so we always rewrite the equation in the form of y. Lets rewrite the equation in the form of y.

$-6x+12y=9\\12y=6x+9\\\\y=\frac{6x+9}{12} \\\\y=\frac{6x}{12}+\frac{9}{12} \\\\y=\frac{1}{2}x+\frac{3}{4}$

now if we compare it to our slope-intercept form which is

$y=mx+b$

m is the slope which is 1/2 which tells us that if the slope is positive the graph is a positive slope means that two variables are positively related that is, when x increases so does y, and when x decreases y also decreases. Graphically, a positive slope means that as a line on the line graph moves from left to right, the line rises, and b is the y-intercept which is 3/4.

Intercept means where the line intersects the specific axis. In this case b is y-intercept which is 3/4 which means the line intersects the y-axis at 3/4

so we have our first point (0 , 3/4)

now in order to graph the line we need one more point that is the x-intercept which means where the line would intersect the x-axis the coordinate would be (x , 0) so lets insert this coordinate into our equation that we rewrote above.

$y=\frac{1}{2}x+\frac{3}{4} \\\\0=\frac{1}{2}x+ \frac{3}{4}\\\\-\frac{3}{4}=\frac{1}{2} x\\\\-6=4x\\\\\frac{-6}{4}=x \\\\x=\frac{-3}{2}$

so our x-intercept is (-3/2 , 0)

Below I have attached the graph file you check it out for better understanding

8 0

3 years ago

NEED ASAP NO ROCKY

BlackZzzverrR [31]

Answer: I got it to you fast no flash

The first given equation is:

j + k = 3

This can be rewritten as:

j = 3 - k .................> I

The second given equation is:

j - k = 7 ............> II

Substitute with I in II and solve as follows:

j - k = 7

(3-k) - k = 7

3 - 2k = 7

-2k = 7-3 = 4

k = 4/-2

k = -2

Substitute with k in I to get the value of J as follows:

j = 3 - k

j = 3 - (-2) = 3+2

j = 5

Based on the above, the solution is (5,-2)

4 0

3 years ago

What is the simplified version of this (exp) 1/x+2 - 1/x-7

baherus [9]

Answer:

1.232323232323 excetera

Step-by-step explanation:

8 0

3 years ago

How to solve (112+3/4(252-112),62+3/4(142-62)

Ilia_Sergeevich [38]

(112+3/4(140),62+(80)
(112+105)62+60
(217)122

5 0

3 years ago