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lisov135 [29]
3 years ago
15

A number, truncated to 1 dp, is equal to 11.9, what are the upper and lower bounds

Mathematics
1 answer:
Rom4ik [11]3 years ago
6 0
I think the answer would be 11.85 11.94
You might be interested in
Please help me! 7 points!! I don’t understand
SVETLANKA909090 [29]

This is adding two vectors, one magnitude 300 direction east, and one magnitude 100 direction 30 degrees northeast.

For the resulting sum we can use the Law of Cosines or just add up the components.  Let's try it both ways.

Components first.   In the east direction we have

300 + 100 cos 30° = 300 + 100(√3/2) = 386.60 miles per hour

In the north direction we have

0 + 100 sin 30° = 100 (1/2) =  50 miles per hour

So a total speed of

sqrt{386.6^2 + 50^2} = 389.82 miles per hour

Answer: 389.82

--------

OK let's try the Law of Cosines.   We have sides 300 and 100 and included angle 150°.

c^2 = 300^2 + 100^2 - 2 (300)(100) \cos 150^\circ

c=\sqrt{151961.52422} = 389.82 \quad\checkmark

5 0
3 years ago
Two kilograms of bronze costs £7.20<br> What is the cost of 300g of bronze
sineoko [7]
We know that
1 Kg is equals to--------------> 1000 g
so
 X Kg------------------------> 300 g
X=300/1000------> x=0.30 Kg

if  2 Kg cost--------------> <span>£7.20
  0.30 Kg-------------> X
X=0.30*7.20/2------> x=1.08

the answer is 
</span>£1.08
3 0
3 years ago
Write the equation of the line parallel to the given line and through the given
zloy xaker [14]

Answer:

y-2x -8

Step-by-step explanation:

your jus gonna right it back because it's parallel which means it's the same thing.

6 0
3 years ago
I tracked an ant as it crawled around on the sidewalk. It went straight North for 8 inches, then it turned left and traveled for
mixas84 [53]

Answer:

18 inches

Step-by-step explanation:

8+4=12

12+6=18

18 inches

Someone deleted my answer so I posted it again.

Hope this helps!

8 0
3 years ago
Sarah has a floor plan of the Jefferson building. The actual building is 168 feet long. What is the scale factor for the floor p
Bas_tet [7]
The answer is B. Hope I helped!
4 0
3 years ago
Read 2 more answers
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