3/5x+19−3/20x−7 simplified is.....

How to find mass when given density and volume?

Evgesh-ka [11]

Mass equals density times volume

5 0

3 years ago

What is the area of the figure:

Luba_88 [7]

For this case we have that the area of the triangle is given by:

$A = \frac {b * h} {2}$

Where:

b: It's the base

h: It's the height

We have to:

$cos (45) = \frac {b} {24}\\b = 24 * cos (45)\\b = \frac {\sqrt {2}} {2} * 24\\b = 12 \sqrt {2}$

The atura will be given by:

$sin (45) = \frac {h} {24}\\h = 24 * sin (45)\\h = \frac {\sqrt {2}} {2} * 24\\h = 12 \sqrt {2}$

So, the area is:

$A = \frac {12 \sqrt {2} * 12 \sqrt {2}} {2}\\A=\frac{(12\sqrt{2})^2}{2}\\A = 144$

Answer:

144

6 0

3 years ago

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Select the correct answer from the drop-down menu.

ZanzabumX [31]

Answer:

The answer to your question is y = 4 - 1.5x

Step-by-step explanation:

Data

River's speed = 2 mi/h

David's speed = 6 mi/h

Rate of change = 1.5 mi/h

From the data given, we can conclude that the rate of the boat will be the difference between David's speed and the speed of the boat = 4mi/h.

The slope must be negative because it decreases.

The only equation that satisfies both conditions is the second option.

5 0

3 years ago

Need help with problem

Fittoniya [83]

Answer:

Step-by-step explanation:

<h2>SINCE THE LINES ARE PARALLEL THEN ANGLE A AND ANGLE B ARE COREESPONDING TO EACH OTHER.</h2><h3>A = 7x + 24 </h3><h3>B= 3x+ 92</h3><h3>A=B</h3><h3>7x + 24 = 3x + 92 </h3>

7x - 3x = 92 - 24

4x = 68

x = 68 / 4

x =17

3 0

3 years ago

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What is the radius of a cone that has a lateral area of 70TT and a total surface area of 120TT?

Savatey [412]

Step-by-step explanation:

the lateral area of the cone is, well, the lateral area.

the total surface area of the cone is the lateral area plus the area of base circle.

so, the difference between both is the area of the base circle :

120pi - 70pi = 50pi

the area of a circle is

pi×radius²

and that is in our case

pi×radius² = 50pi

radius² = 50

radius = sqrt(50) = 7.071067812... ≈ 7.1 units

therefore, C is the right answer.

3 0

3 years ago