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nignag [31]
3 years ago
11

What is the initial value of the equation shown?

Mathematics
1 answer:
lapo4ka [179]3 years ago
5 0

Answer:

-5

Step-by-step explanation:

The initial value would be the value when x=0.  Substituting 0 for x,

y = -2(0)-5

y = 0 - 5

y = -5

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What is this 5/8 × 1/2
larisa86 [58]
The answer is 5/16 you're welcome
5/8 x 1/2 = 5/16
4 0
3 years ago
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Find the surface area of the composite figure.
taurus [48]

Answer:

surface area is 39

Step-by-step explanation:

add the areas of each geometric figure making up the composite 3D figure.

first 3D figure

2+2+6+6

=16---eq 1

from third 3D figure

4+4+10+5

= 23

from 1 and 2

16+23

= 39

may be!! I'm not sure bout this answer

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3 years ago
Are the ratios equivalent and how
Hitman42 [59]
 The ratios are equivalent because you multiplied 18:4 by 2&3. And also you divided it by 2. I had the same homework!
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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
Diego played chess for 30 minutes. He stopped playing at 5:49 PM move the numbers to the Clock to show what time he started play
Sidana [21]

Answer:

He strated at 5:19 PM

Step-by-step explanation:

Have a Nice Day!

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3 years ago
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