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MrMuchimi
2 years ago
11

11points HELP PLZ!!!

Mathematics
2 answers:
scZoUnD [109]2 years ago
8 0

Answer: 0.00215

Step-by-step explanation:

10^-3 =0.001

2.8 • 0.001 - 0.00065

=0.00215

Mazyrski [523]2 years ago
6 0

Answer:

2.15 × 10⁻³

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

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So far Monica has read 56 of a book she has read the same number of pages each day for five days what fraction of the book does
alexandr1967 [171]

Answer:

14/125

Step-by-step explanation:

56 % ÷ 5 days ie 11.2% per day ie 112/1000 or 14/125

4 0
2 years ago
Find the perimeter of the triangle shown ( need fast)
Ber [7]
The perimeter is 16 inches
4.5+5.5+6=16
3 0
3 years ago
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What is the axis of symmetry for f(x) = −3x2 + 12x − 6?
Marta_Voda [28]
The axis of symmetry can be found by finding the average of the zeros, a derivation from the conservation of energy :P, or by finding the point when the velocity is equal to zero.

df/dx=-6x+12 so df/dx, velocity, equals zero when:

-6x+12=0

6x=12

x=2  so the axis of symmetry is the vertical line x=2

....

average of zeros...

3x^2-12x+6=0

x^2-4x+2=0

x^2-4x=-2

x^2-4x+4=2

(x-2)^2=2

x-2=±√2

x=2±√2  so the average of the zeros is obviously 2.

....

conservation of energy

vf-vi=at  When vf=0, this is the maximum value for f(x)...

-vi=at, vi=b and a(acceleration)=2a(from quadratic) and t=x

-b=2ax

x=-b/(2a)  in this case

x=-12/(2(-3))

x=-12/-6

x=2

 
8 0
3 years ago
Read 2 more answers
Can someone please help with my homework
densk [106]
The answer is C
g(x) = (x+12)^2
5 0
2 years ago
The sum of 2 numbers is 19 and their difference is 5
Strike441 [17]

Answer:

12 and 7

Step-by-step explanation:

4 0
3 years ago
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