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Ilia_Sergeevich [38]
2 years ago
10

Solve the equation. x^2=1/49

Mathematics
1 answer:
madam [21]2 years ago
4 0

Answer:

= − 1/7   OR = 1/7       DECIMAL FORM x=0.42857,   −042857

Step-by-step explanation:

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Pls help me asap pls!!
Ne4ueva [31]

Answer:Its A or C

Step-by-step explanation:

3 0
2 years ago
Complete the table.
Brilliant_brown [7]

Answer:

I believe the answer is 65%

Step-by-step explanation:

95/65%=61.75

5 0
3 years ago
1) if side C of a right triangle is 12 and side B of a right triangle is 8 what does side A equal​
GarryVolchara [31]
The answer is 4 square root 5 or -4 square root 5

3 0
3 years ago
A hiker starting at point P on a straight road wants to reach a forest cabin that is 2 km from a point Q, 3 km down the road fro
pantera1 [17]

Answer:

2.19 km

Step-by-step explanation:

If x is the distance she walks down the road before turning, then the total time is:

t = x/8 + √((3 − x)² + 2²) / 3

t = x/8 + √(9 − 6x + x² + 4) / 3

24t = 3x + 8√(13 − 6x + x²)

24t = 3x + 8(13 − 6x + x²)^½

Take derivative of both sides with respect to x.

24 dt/dx = 3 + 4(13 − 6x + x²)^-½ (-6 + 2x)

When t is a minimum, dt/dx = 0.

0 = 3 + 4(13 − 6x + x²)^-½ (-6 + 2x)

-3 = 4(13 − 6x + x²)^-½ (-6 + 2x)

3 / (6 − 2x) = 4(13 − 6x + x²)^-½

3 / (24 − 8x) = (13 − 6x + x²)^-½

(24 − 8x) / 3 = (13 − 6x + x²)^½

(24 − 8x)² / 9 = 13 − 6x + x²

576 − 384x + 64x² = 117 − 54x + 9x²

459 − 330x + 55x² = 0

Solve with quadratic formula.

x = [ 330 ± √((-330)² − 4(55)(459)) ] / 2(55)

x = (330 ± √7920) / 110

x = 2.19 or 3.81

Since 0 < x < 3, x = 2.19.

7 0
3 years ago
“Two lines in a plane always intersect in exactly one point.”
arsen [322]
The answer is B.
Parallel lines as they are in the same plane but never meet.
3 0
3 years ago
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