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1 year ago

What is the perimeter of triangle ABC? Round the answer to the nearest tenth, if necessary.

Mathematics

1 answer:

alexandr402 [8]1 year ago

3 0

4949 units
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Determine whether the given number is a solution of the given equation.

poizon [28]

Answer:

Yes

Step-by-step explanation:

Switch x for 6:

(6)-8=-2

Subtract 6 from 8:

-2=-2

-2 does equal -2 so 6 is a solution.

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2 years ago

A sphere has a radius r=12 inches. What is it’s approximate volume

alexandr402 [8]

Answer: 7238.28

Step-by-step explanation:

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3 years ago

PLEASE PLEASE HELP!!! Figure 1 is dilated to get figure 2. What is the scale factor? Figure 1 is the smaller figure and has a 6

Xelga [282]

The answer is 1.5

Hope this helps!!

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3 years ago

1)Sheyna drive to the lake and back. It took two hours less time to get there than it did to get back. The average speed on the

ipn [44]

Answer:

8 hours

Step-by-step explanation:

Given:

Sheyna drives to the lake with average speed of 60 mph and

$v_1 = 60\ mph$

Sheyna drives back from the lake with average speed of 36 mph

$v_2 = 36\ mph$

It took 2 hours less time to get there than it did to get back.

Let $t_1$ be the time taken to drive to lake.

Let $t_2$ be the time taken to drive back from lake.

$t_2-t_1 = 2$ hrs ..... (1)

To find:

Total time taken = ?

$t_1+t_2 = ?$

Solution:

Let D be the distance to lake.

Formula for time is given as:

$Time =\dfrac{Distance}{Speed }$

$t_1 = \dfrac{D}{60}\ hrs$

$t_2 = \dfrac{D}{36}\ hrs$

Putting in equation (1):

$\dfrac{D}{36}-\dfrac{D}{60} = 2\\\Rightarrow \dfrac{5D-3D}{180} = 2\\\Rightarrow \dfrac{2D}{180} = 2\\\Rightarrow D = 180\ miles$

So,

$t_1 = \dfrac{180}{60}\ hrs = 3 \ hrs$

$t_2 = \dfrac{180}{36}\ hrs = 5\ hrs$

So, the answer is:

$t_1+t_2 = \bold{8\ hrs}$

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3 years ago

A machine produces 240 bolts in 25 minutes. At the same rate how many bolts would be produced in 45 minutes

Leni [432]

192 bolts will be produced in 45 minutes

8 0

3 years ago

Read 2 more answers