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Verdich [7]
3 years ago
11

I just need #1 plzzzz if you can do #2 and #3 as well I also need the work!! 20 points

Mathematics
1 answer:
Agata [3.3K]3 years ago
3 0
#1 would be 12 cm as the actual length of the thermos! This is because the scale given is 1:3 right? if you find what number 1 is multiplied by to get 3, you will obviously have 3. then, the given length of the thermos would be multiplied by 3, so it would be 3 x 4, which would be 12!

-8th grader
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Don works in home construction. He determined that the function t(A)=144A/9.252 gives the total number of 9 in. tiles needed to
Oksanka [162]

Answer:

6,226 tiles of 9 in are needed to cover an area of 400 square feet

Step-by-step explanation:

Let

A -----> an area in square feet

t(A) ---> the total number of 9 in. tiles needed

we have

t(A)=\frac{144A}{9.252}

For A=400 ft^2

substitute in the equation and solve for t

t(400)=\frac{144(400)}{9.252}

t(400)=6,226\ tiles

That means -----> 6,226 tiles of 9 in are needed to cover an area of 400 square feet

6 0
3 years ago
Food Mart<br>job<br>Tuesday to Friday<br>Pay: £56 for each day in pounds​
AURORKA [14]
You do 4 x 56 = 224. It’s just multiplication.
4 0
3 years ago
Read 2 more answers
The greatest common factor of any two even numbers is always even. determine weather the statement is true or false. if true exp
Illusion [34]
True. Because two even numbers weather you Add Subtract or Multiply them they will always be Even
3 0
4 years ago
Please help!! 15 points!!
vampirchik [111]

- 1 =  - 3 - 4 \cos(4θ +  \frac{2\pi}{3} )  \\  - 1 + 4 \cos(4θ +  \frac{2\pi}{3} )  =  - 3 \\ 4 \cos(4θ +  \frac{2\pi}{3} )  =  - 3 + 1 \\ 4 \cos(4θ  + \frac{2\pi}{3} )  =  - 2 \\  \cos(4θ  + \frac{2\pi}{3} )  =  -  \frac{1}{2}  \\  \cos(4θ +  \frac{2\pi}{3} )  =  -  \frac{1}{2}  \\  \cos(2\pi - (4θ +  \frac{2\pi}{3} ))  =  -  \frac{1}{2}  \\ 4θ +  \frac{2\pi}{3}  = arccos( -  \frac{1}{2} ) \\  \cos( \frac{4\pi}{3}  - 4θ)  =  -  \frac{1}{2}

3 0
3 years ago
Read 2 more answers
2 trains leave the station at the same time. Train A is traveling 16 miles slower than train B. The two trains are 720 miles apa
Ber [7]

Answer: the rate of speed for train A is 66 miles per hour.

Step-by-step explanation:

Let x represent the speed of train B.

2 trains leave the station at the same time. Train A is traveling 16 miles per hour slower than train B. This means that the speed of train A would be x - 16 miles per hour.

The two trains are 720 miles apart after 4 hours. It means that both trains traveled a total distance of 720 miles in 4 hours.

Distance = speed × time

Distance travelled by train A after 4 hours is

4(x - 16) = 4x - 64

Distance travelled by train B after 4 hours is

4 × x = 4x

Since the total distance travelled by both trains is 720 miles, then

4x - 64 + 4x = 720

8x = 720 - 64 = 656

x = 656/8 = 82 miles per hour

The speed of train A would be

82 - 16 = 66 miles per hour.

6 0
3 years ago
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