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saul85 [17]
2 years ago
7

Need help finding the value of x

Mathematics
2 answers:
igor_vitrenko [27]2 years ago
4 0

Answer:

The value of x is 26.

Step-by-step explanation:

In a triangle, the total angles is 180°. In order to find the value of x, you have to add up all the angles in terms of x and make it equals to 180°

2x + 3x + 50 = 180

5x + 50 = 180

5x = 180 - 50

5x = 130

x = 130 ÷ 5

x = 26

Reika [66]2 years ago
4 0

As we know that,

Sum of all angles of triangle = 180°

Given,

Angles are 2x , 3x and 50°

Now,

\rightarrow \: 2x + 3x + 50 = 180

When plus sign goes to another side then,it become minus.

\rightarrow \: 5x = 180 - 50

\rightarrow \: 5x = 130

\rightarrow \: x =  \cancel \dfrac{130}{5}

\rightarrow \: x = 26

Hence,the value of x is 26°.

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T-shirts and More Print Shop will print any image on a mouse pad for a cost of $2 per mouse pad and a one-time charge of $12 to
Anna35 [415]

Answer:

275 mouse pads were printed

Step-by-step explanation:

562 - 12 = 550

550/2 = 275

4 0
2 years ago
Let f (x) = x^2 + 2xHow would you explain what f(5) means to a friend?
luda_lava [24]

Answer:

I would tell this friend to think of f(5) as them telling you what x is.

Step-by-step explanation:

So basically you would be imputing 5 everywhere x is to solve the equation.

7 0
2 years ago
Anyone good with geometry cause I’m not
klasskru [66]
Angle B equals angle D
angle A equals angle C
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3 0
3 years ago
Read 2 more answers
Find the measurements of the other seven angles
Nesterboy [21]
1 = 32
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4 0
3 years ago
Angles A and B are located in the first quadrant such that sinA= 7/25 and cosB = 5/13. Determine the exact value for cos (A-B).
fomenos

Answer:

  204/325

Step-by-step explanation:

You can work this a couple of ways. We expect you are probably expected to use trig identities.

  cos(A) = √(1 -sin²(A)) = 24/25

  sin(B) = √(1 -cos²(B)) = 12/13

cos(A -B) = cos(A)cos(B) +sin(A)sin(B) = (24/25)(5/13) +(7/25)(12/13)

  = (24·5 +7·12)/325

cos(A -B) = 204/325

__

The other way to work this is using inverse trig functions. It is necessary to carry the full calculator precision if you want an exact answer.

  cos(A -B) = cos(arcsin(7/25) -arccos(5/13)) = cos(16.2602° -67.3801°)

  = cos(-51.1199°) ≈ 0.62769230 . . . . (last 6 digits repeating)

The denominators of 25 and 13 suggest that the desired fraction will have a denominator of 25·13 = 325, so we can multiply this value by 325 to see what we get.

  325·cos(A-B) = 204

so, the exact value is ...

  cos(A -B) = 204/325

8 0
2 years ago
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