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kolezko [41]
3 years ago
15

Solve x2-81=0 A.(0) B.(-9) C.(-9,9) D.(9)

Mathematics
1 answer:
IRINA_888 [86]3 years ago
5 0
The solution for your specific problem is shown on the picture.

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Solve the equation 14y+82=6x-20 for x if y is 25
Leni [432]

Answer:

x= 226/3 or 75.33333333333333333333333333333

Step-by-step explanation:

14y+82=6x-20

y=25

Sub y=25 into 14y+82=6x-20

14y+82=6x-20

14(25)+82=6x-20

Calculate as follows:

14(25)+82=6x-20

350+82=6x-20

432=6x-20

Add twenty to both sides:

432+20=6x-20+20

452=6x-0

452=6x

Divide both sides by 6

452=6x

452/6=6x/6

452/6=x

x= 226/3 or 75.33333333333333333333333333333

8 0
3 years ago
How many solutions exist for the mixed-degree system graphed below?
Likurg_2 [28]
The answer is one solution. Hope this helps
8 0
3 years ago
Read 2 more answers
If a cylinder has a volume of 80 cubic centimeters, and a diameter of 3 centimeters, what is it's height?
Ivan
The height is 240 How this helps
7 0
3 years ago
Of the computer games Lynne owns, 5-12 are sport games and 3-12 are educational. What fraction of the games are either sport gam
Serhud [2]
Of 5 out of 12 (5/12) are sports games and 3 out of 12 (3/12) are educational, then you would add these together because you need a total for both because it would include one or the other, so both.

5/12 + 3/12= 8/12 or 2/3 are one or the other.
8 0
4 years ago
Read 2 more answers
Find the measure of each angle (in degrees) of
d1i1m1o1n [39]

Answer:

∠A = 88°

∠B = 92°

∠C = 88°

∠D = 92°

Step-by-step explanation:

∠A + ∠B = 180°

(2x + 4) + (3x - 34) = 180

reduce:

5x - 30 = 180

5x = 210

x = 42

∠A = 2(42) + 4 = 88°

∠B = 3(42) -34 = 92°

∠C = ∠A = 88°

∠D = ∠B = 92°

3 0
3 years ago
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