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velikii [3]
2 years ago
7

Need help l don’t understand due soon

Mathematics
2 answers:
Sergeu [11.5K]2 years ago
6 0

Answer:

x = 9

Step-by-step explanation:

44 = 2(3x-5)

2(3x-5) expanded is 6x -10

44= 6x -10

+10 to both sides

=

54 =6x

54 divide by 6 = 9

x = 9

please mark as brainlesit is correct.

Leno4ka [110]2 years ago
5 0

Answer:

First solve the paranthesis, 2*3x and 2*5, from here we will get the new equation, 44= 6x-10, now you can change sides of the known values to simplfy the question, 44+10=6x -> 54=6x, now divide each side by 6 to find x, 9=x

Step-by-step explanation:

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Read 2 more answers
In circle O, BC =19 and DC=35. The diagram is not to scale.<br> what is the length of diameter BA?.
LuckyWell [14K]
1. CD is tangent to the circle with center O, at point D. 

2. Join D to O. 

3. OD = OB = r, where r is the radius of the circle. 

4. radius OD is perpendicular to the tangent CD.

5. Thus in the right triangle OCD: CD^{2} + DO^{2} = CO^{2}, by the pythagorean theorem.

6. (19+r)^{2}= 35^{2}+ r^{2}

38r=35 ^{2}-19^{2}

Note: when applying pythagorean theorem, the difference of squares property
[ a ^{2} -b^{2} =(a-b)(a+b) ] is a useful practical tool in calculations.

38r=(35 -19)(35+19)
38r=16*54

r= \frac{16*54}{38}= 22.74

7. Finally, the diameter BA=2r=2*22.74=45.48

So the answer is 45.5




6 0
4 years ago
Figure ABCD is a parallelogram.
Alika [10]

Answer:

3rd option, 44 units

Step-by-step explanation:

3x-1 = 2x+2

or, x = 3

so each side, 3×3-1 = 8

4y-2 = 2y+6

or, y = 4

so each side, 4×4-2 = 14

so perimeter

= 2(8+14)

= 44 units

Answered by GAUTHMATH

4 0
3 years ago
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