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Crank
3 years ago
13

Leah likes the number 400 but not 500. She likes 900 but not 999.

Mathematics
1 answer:
Natali [406]3 years ago
4 0

Answer:

Step-by-step explanation:

1,200

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Can you help me? sin 35 (degrees) Thanks!
Nata [24]
<span>OK, here's a *very* approximate "creative" method: 
</span><span>
sin(a+b)=sin(a)cos(b) + cos(a)sin(b) </span>
<span>
choose a=30deg and b=5deg </span>
- sin(a)=0.5 (exact) 
- b is a small number so we say sin(b)~b (in radians). We can do a long division for this: 3.14/36 = 0.087 radians 
- similarly, for b sufficiently small, cos(b)~1 
<span>- now we only need cos(a) = sqrt(3)/2. We can approximately calculate sqrt(3) as 1.73, (by trial-and-error or better, by using the Babylonian method;  so sqrt(3)/2 = 0.865 </span>
<span>
Finally, sin(30 + 5) = (0.5 x 1) + (0.087 x 0.865) = 0.575 (calculating more digits is of no use because the sin(b)=b and cos(b)=1 are quite inaccurate approximations). </span>

<span>So that wasn't all too much effort, and we're close to the correct answer (0.574)


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
8 0
3 years ago
Which side lengths form a right triangle 4, 8, 12
Lostsunrise [7]
(4^2+8^2)^.5 = 8.944
It's not 12.
So 4,8,12 can't be the side lengths of a right triangle.
7 0
3 years ago
A researcher has three small containers of chemicals to use for an experiment. Container 1 has a mass of 0.43 gram. Container 2
scoundrel [369]

Answer:

vfsdvhnjmk,l

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
It takes 93 pounds of seed to completely plant a 10-acre field. How many acres can be planted per pound of seed? Round to neares
Mice21 [21]

Answer:

9.3 acres per pound

Step-by-step explanation:

93/10

5 0
3 years ago
Read 2 more answers
HELP PLSSS I CANT DO THIS HOMWORK
kvasek [131]

Answer:

B=-6

Step-by-step explanation:

-21+9=-12

-12/2=-6

You can check it.

8 0
2 years ago
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