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skad [1K]
3 years ago
14

Solve for x. 3x - 8x + 2 = 17 X=

Mathematics
1 answer:
Vsevolod [243]3 years ago
3 0

Answer:

-3

Step-by-step explanation:

3x-8x=17-2

3x-8x=15

-5x=15

-x=15/5

-x=3

x=-3

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50 points. I am stuck on this question, Please help!
igomit [66]

Step-by-step explanation:

arc CAD = 2×63= 126°

< ADB = ½×180 = 90°

arc AD = 126-36 = 90°

< ABD = ½×90° = 45°

< BAD = 180-90-45 = 45°

arc BD = 2×45 = 90°

4 0
3 years ago
Write the product as a sum: 14cos(39x)sin(19x)
charle [14.2K]

Recall that

sin(<em>a</em> + <em>b</em>) = sin(<em>a</em>) cos(<em>b</em>) + cos(<em>a</em>) sin(<em>b</em>)

sin(<em>a</em> - <em>b</em>) = sin(<em>a</em>) cos(<em>b</em>) - cos(<em>a</em>) sin(<em>b</em>)

Adding these together gives

sin(<em>a</em> + <em>b</em>) + sin(<em>a</em> - <em>b</em>) = 2 sin(<em>a</em>) cos(<em>b</em>)

To get 14 cos(39<em>x</em>) sin(19<em>x</em>) on the right side, multiply both sides by 7 and replace <em>a</em> = 19<em>x</em> and <em>b</em> = 39<em>x</em> :

7 (sin(19<em>x</em> + 39<em>x</em>) + sin(19<em>x</em> - 39<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

7 (sin(58<em>x</em>) + sin(-20<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

7 (sin(58<em>x</em>) - sin(20<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

4 0
3 years ago
Solve the equation. 13x-5=1+11x
Alex Ar [27]
Answer is C, hope this helps!!
4 0
2 years ago
Read 2 more answers
A pharmaceutical saleswoman earns a base pay of $42,500 per year and a commission of 13% of all sales made. If she sold $39,800
Alisiya [41]
To solve, first you need to figure out what 13% of 39,800 is (5,174).

Then, add that to the base pay of 42,500 and you get B: $47,674
7 0
3 years ago
a cylindrical propane tank is filled for a cost of $0.03 per in cubed. The tank has a radius of 24 in and a height of 60.5 in. W
mote1985 [20]
Π24²= 1809.55736847<span>
1809.55736847x60.5=</span><span>109478.220792
</span>109478.220792x0.03=<span>3284.34662377
</span>round that and you have $3284.35

hope this helps :)
p.s. if you don't understand or find a fault in my calculations don't hesitate to tell me :) 
6 0
4 years ago
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