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iogann1982 [59]
3 years ago
13

Find the value of x in the following figure. (a) 60° (2x + 40° R

Mathematics
1 answer:
miskamm [114]3 years ago
3 0
60

bc of congruence mark
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Ellen Saver went to her bank. She had a balance of $2,447.67 in her savings account. She withdrew $231.49 and the teller credite
tester [92]
$2,447.67 - $231.49  = <span>$2,216.18

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her new balance is $2,252.79
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3 years ago
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If tan = 12/5 and cos = -5/13, then what is sin?
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9514 1404 393

Answer:

  sin -12/13

Step-by-step explanation:

You can use the identity ...

  tan = sin/cos

to solve for sine:

  sin = cos·tan

  sin = (-5/13)(12/5) =

  sin -12/13

4 0
3 years ago
The equation of line v is y = -x + 9. Line w, which is perpendicular to line v, includes the
Oduvanchick [21]

Answer:

y=x+1

Step-by-step explanation:

In order to find the slope that is perpendicular to a given line, you have to take the fraction form (-1/1), flip it (1/-1), and give it an opposite sign (1/1).  Now since we now know our slope we can draw y=x to find what do we have to add.  Since y=x crosses (2,2), we know we have to add 1 to the equation in order to bring it to (2, 3).

5 0
3 years ago
A line through the origin and (10,4) is showin in the standard (x,y) coordinate plane below. The acute angle between the line an
Snowcat [4.5K]

Answer:

\cos\theta=\frac{10}{\sqrt{116}}

Step-by-step explanation:

To solve this, we can imagine a line drawn directly down from the point (10,4) to the x-axis. This would make a right triangle with length 10 and height 4.

\cos\theta is equal to the length of adjacent leg to the angle divided by the length of the hypotenuse of the triangle. From the picture, we can see the adjacent leg is 10.

We can use Pythagorean's Theorem to find the hypotenuse (let c represent the length of the hypotenuse):

10^2+4^2=c^2

100+16=c^2

116=c^2

c=\sqrt{116}

Thus, we know the adjacent is 10, and the hypotenuse is \sqrt{116}. This means \cos\theta=\frac{10}{\sqrt{116}}.

Hope this helps!

5 0
3 years ago
2(x+4)+4x<br><br>simplify expression​
OLEGan [10]

Answer:

6x+8

Step-by-step explanation:

2(x+4)+4x

2x+8+4x

6x+8

4 0
3 years ago
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