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Fed [463]
3 years ago
5

5[3(x+4)-2(1-x)]-x-15=14x+55 what is x

Mathematics
1 answer:
Nostrana [21]3 years ago
4 0

Answer:

x=2

Step-by-step explanation:

I hope you will understand the way I solved it

if not, dont hesitate to ask questions in the comments...

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PLZ HELP ASAP TANGENTS OF CIRCLES
bezimeni [28]
First, we are given that the inscribed angle of arc CB which is angle D is equal to 65°. This is half of the measure of the arc which is equal to the measure of the central angle, ∠O. 
 
    m∠O = 2 (65°) = 130°

Also, the measure of the angles where the tangent lines and the radii meet are equal to 90°. The sum of the measures of the angle of a quadrilateral ACOB is equal to 360°. 

     m∠O + m∠C + m∠B + m∠A = 360°

Substituting the known values,
     130° + 90° + 90° + m∠A = 360°

The value of m∠A is equal to 50°.

<em>Answer: 50°</em>
7 0
3 years ago
What is the slope of a line that is perpendicular to the line y= -1/2x +5?
spin [16.1K]
The answer is:

B. -1/2

Explanation:
The equation is in y= mx + b form, which means that m= slope and b= y-intercept. You can see that the slope is -1/2.


7 0
3 years ago
If the mean of five values is 8.6 and four of the values are 10, 7, 8, and 7, find
Anna007 [38]

Answer:

The fifth value is 11

6 0
2 years ago
3 Simplify the expression: 5! 2:3! 4. Simplify the expression:​
vredina [299]

Answer:

10

Step-by-step explanation:

5! 2:3! 4  \\  \\ =  \frac{5! \:  .2}{3! \: . 4}  \\  \\  =  \frac{5.4. \cancel{3!} \: . 2}{\cancel{3!} \:  .4}  \\  \\  =  \frac{40}{4}  \\  \\  = 10

6 0
3 years ago
The sum of two times x and one is at least 11. Write this word sentence as an inequality
Aneli [31]

Answer:

2x + 1 ≥ 11

Step-by-step explanation:

I believe this is it. Hope this helped!

7 0
3 years ago
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