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sergij07 [2.7K]
4 years ago
6

Find f (2) if f(x)=-5x2if x <-6

Mathematics
1 answer:
viva [34]4 years ago
3 0

Answer: -180 for -6 and -20 for 2

Please give me Brainliest

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Nicole split 7/8 pounds of candy among 4 people. What is the unit rate in pounds per person?
ANTONII [103]

Answer:

7/8 : 4 = 7/ ( 8 x 4 )= 7/32

Step-by-step explanation:

4 0
3 years ago
Graph y=2x+4 in a coordinate plane
KatRina [158]
I attached a picture

4 0
3 years ago
What are the central angles of the sectors representing nuclear energy in both the years?( you may round the numbers before find
xeze [42]

Answer:

1995 => 22°

2005 => 36°

Step-by-step explanation:

Central angle of the sector representing nuclear energy in 1995 = percentage of nuclear energy in 1995 ÷ 100 × 360°

Nuclear energy is approximately 6% (rounded to whole number) in 1995.

Central angle = \frac{6}{100}*360 = \frac{6}{10}*36

= \frac{216}{10} = 21.6

Central angle representing nuclear energy in 1995 ≈ 22° (nearest whole number).

Central angle of the sector representing nuclear energy in 2005 = percentage of nuclear energy in 2005 ÷ 100 × 360°

Nuclear energy is approximately 10% (rounded to whole number) in 1995.

Central angle = \frac{10}{100}*360 = \frac{1}{1}*36

= \frac{36} = 36

Central angle representing nuclear energy in 2005 = 36°.

7 0
3 years ago
What is (-2xy^3z^-2)^3(2x^2y^4z)^-2 simplified?
ser-zykov [4K]

Answer: 3 23 divided by 22 = 2(3 - 2) = 21 = 2 think it’s 2

Step-by-step explanation: Changes made to your input should not affect the solution:

(1): "^-2" was replaced by "^(-2)".

(2): "y4" was replaced by "y^4".

STEP

1

:

Equation at the end of step 1

(((0-((2x•(y3))•z))-2)3)•(((2x2•y4)•z)-2)

STEP

2

:

Equation at the end of step

2

:

(((0 - (2xy3 • z)) - 2)3) • (2)(-2)x(-4)y(-8)z(-2)

STEP

3

:

STEP

4

:

Pulling out like terms

4.1 Simplify ( -2xy3z-2 )3

Put the exponent aside and simplfy the base by pulling out like factors :

-2xy3z-2 = -2 • (xy3z+1)

Remember the 4th law of exponents : (a • b)m= am• bm

Retract the exponent and apply the 4th law to the simplified base: ( -2 • (xy3z+1) )3 = (-2)3 • (xy3z+1)3

Trying to factor as a Sum of Cubes:

4.2 Factoring: xy3z+1

Put the exponent aside, try to factor xy3z+1

Theory : A sum of two perfect cubes, a3 + b3 can be factored into :

(a+b) • (a2-ab+b2)

Proof : (a+b) • (a2-ab+b2) =

a3-a2b+ab2+ba2-b2a+b3 =

a3+(a2b-ba2)+(ab2-b2a)+b3=

a3+0+0+b3=

a3+b3

Check : 1 is the cube of 1

Check : x 1 is not a cube !!

Ruling : Binomial can not be factored as the difference of two perfect cubes

Dividing exponents:

4.3 23 divided by 22 = 2(3 - 2) = 21 = 2

Final result :

-2 • (xy3z + 1)3

————————————————

x12y24z6

4 0
3 years ago
Read 2 more answers
What is equivalent to1/16?
aev [14]
Easy multiply 1/16 by any number in example 1*2=2——16*2=32 therefore 1/16=2/32
5 0
4 years ago
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