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otez555 [7]
3 years ago
14

5x-6=3x-9 .......................................................................................

Mathematics
1 answer:
Vladimir79 [104]3 years ago
3 0

Answer:

-3 / 2

Step-by-step explanation:

  1. 5x - 6 = 3x - 9
  2. 5x - 6 + 6 = 3 x - 9 + 6
  3. 5x = 3x - 3
  4. 5x - 3x = 3x - 3 - 3x
  5. 2x = - 3
  6. 2x / 2 = -3 / 2
  7. The X = -3 / 2
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He ------- daily for a year now. <br><br> a) exercises b) was exercising c) has been exercising
salantis [7]
Answer: C: has been exercising
6 0
2 years ago
Circumference, radius, slant height, lateral area, and surface area are measurements of a cone. Given two of the measurements, f
USPshnik [31]

Answer:

  1. LA = 21.7 ft²; C = 18.8 ft; h = 2.3 ft
  2. h = 8 in; r = 7 in; SA = 330.1 in²

Step-by-step explanation:

Applicable relations are ...

  C = 2πr . . . . . . . r = radius, C = circumference

  LA = 1/2·Ch . . . . h = slant height, LA = lateral area

  SA = πr² +LA . . . SA = total surface area

__

1. Given r and SA, we can find the other measures as ...

  LA = SA -πr² = 50 ft² -π(3 ft)² ≈ 21.7 ft²

  C = 2πr = 2π(3 ft) ≈ 18.8 ft

  h = 2·LA/C ≈ 2·21.7 ft²/(18.8 ft) ≈ 2.3 ft

(Please note that for calculations using intermediate results, we used the full-precision values of those results, not the rounded ones. Rounding is always the last operation. Please note, too, that we have used a value for π sufficient to ensure accuracy in all the digits shown here.)

__

2. Given C and LA, we can find the other measures as ...

  h = 2·LA/C = 2(176 in²)/(44 in) = 8 in

  r = C/(2π) = (44 in)/(2π) ≈ 7.0 in

  SA = LA +πr² = LA +rC/2 ≈ 176 in² +(7.0 in)(44 in)/2 ≈ 330.1 in²

4 0
3 years ago
Which of the equations below shows the relationship in the table? [X] [15] [5] [3] [1] -----------------------------------------
Nataly_w [17]
Y=15/x or xy=15 it seems that a should be 15/x

4 0
3 years ago
.
IrinaK [193]

Answer:

"A - $32.50"

Step-by-step explanation:

So, 0.40 per share for 100 shares is:

Decrease of 0.40 * 100 = $40

Also, 0.25 per share for 30 shares is:

Increase of 0.25 * 30 = $7.5

So, decreased by 40 and increased by 7.5 means Total Decrease of 40 - 7.5 = $32.5

Answer choice A is right.

6 0
3 years ago
A road has a 10% grade, meaning increasing 1 unit of rise to every 10 units of run.
finlep [7]

Answer:

Part a) The elevation of the road is 6\°

Part b) The rise is 0.2\ km

Step-by-step explanation:

Part a) What is the elevation of the road to the nearest degree?

Let

y-----> the rise of the road ( vertical distance)

x ----> the run of the road (horizontal distance)

we have

y/x=1/10

we know that

The ratio y/x is equal to the tangent of the angle of the elevation of the road

Let

\theta ---->  angle of the elevation of the road

tan(\theta)=y/x

tan(\theta)=1/10

\theta=arctan(1/10)=6\°

Part b)  If the road is two km long, how much does it rise?

using proportion

1/10=y/2

y=2/10=0.2\ km

3 0
3 years ago
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