All categories

3 years ago

ALGEBRA Find x and the measures of the unknown sides of each triangle.

Physics

1 answer:

valentina_108 [34]3 years ago

3 0

9514 1404 393

Answer:

12. x = 11; sides are 29

13. x = 5; sides are 25

Explanation:

12. The marked sides are equal length, so ...

3x -4 = 2x +7

x = 11 . . . . . . . . add 4-2x

2x+7 = 2(11)+7 = 29 . . . side lengths

13. The marked sides are equal length, so ...

6x -5 = 5x

x = 5 . . . . . . . add 5-5x

5x = 5(5) = 25 . . . side lengths

You might be interested in

Water flows through a cast steel pipe (k = 50 W m.K, ε = 0.8) with an outer diameter of 104mm and 2 mm wall thickness. Calculate

masha68 [24]

Answer:

The heat loss per unit length is $\frac{Q}{L} = 2981 W/m$

Explanation:

From the question we are told that

The outer diameter of the pipe is $d = 104mm = \frac{104}{1000} = 0.104 m$

The thickness is $D = 2mm = \frac{2}{1000} = 0.002m$

The temperature of water is $T = 90^oC = 90 + 273 = 363K$

The outside air temperature is $T_a = -10^oC = -10 +273 = 263K$

The water side heat transfer coefficient is $z_1 = 300 W/ m^2 \cdot K$

The heat transfer coefficient is $z_2 = 20 W/m^2 \cdot K$

The heat lost per unit length is mathematically represented as

$\frac{Q}{L} = \frac{2 \pi (T - Ta)}{ \frac{ln [\frac{d}{D} ]}{z_1} + \frac{ln [\frac{d}{D} ]}{z_2}}$

Substituting values

$\frac{Q}{L} = \frac{2 * 3.142 (363 - 263)}{ \frac{ln [\frac{0.104}{0.002} ]}{300} + \frac{ln [\frac{0.104}{0.002} ]}{20}}$

$\frac{Q}{L} = \frac{628}{0.2107}$

$\frac{Q}{L} = 2981 W/m$

6 0

3 years ago

A) Define rest and motion?

7nadin3 [17]

Answer:

Rest - a body is said to be at rest, if it does not change its position with respect to its surrounding with time. Motion - a body is said to be at motion, if it changes its position with time.

5 0

3 years ago

What is the temperature of a gas in which the atoms are moving very very slowly

Mice21 [21]

The temperature of a gas in which the atoms are moving slowly is (THE COLD).

THAT'S IT! :)

4 0

3 years ago

Read 2 more answers

Micah knows that a car had a change in velocity of 15 m/s. To determine acceleration, Micah also needs the_______________

Tomtit [17]

Answer:

Duration of the total trip

Explanation:

Acceleration is defined as the rate of change of velocity of an object:

$a=\frac{\Delta v}{\Delta t}$

where

$\Delta v$ is the change in velocity

$\Delta t$ is the duration of the change in velocity

Acceleration is measured in meters per squared seconds, $m/s^2$ . Also, we should note that acceleration is a vector quantity, so in order to completely define acceleration we also need to specify the direction.