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2 years ago

Y=-6x+5 and y=-6x-6 pair of lines is parallel, perpendicular, or neither?

Mathematics

1 answer:

Alex73 [517]2 years ago

8 0

Answer:

parallel

Step-by-step explanation:

They both have the same slope, -6.

The slope is always the number in front of the x.

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A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained p

Oliga [24]

Answer:

no of sample within two percentage points is 5409

no of sample not use prior estimates is 8321

Step-by-step explanation:

Given data

E = 2% = 0.02

male m = 21.2 % = 0.212

female f = 19.7 % = 0.197

to find out

no of sample within two percentage points and if does not use any prior estimates

solution

first we calculate no of sample within two percentage points

we know Z critical value for 99% is 2.58

so no of sample will be

n = (Z / E )² × m(1-m) + f ( 1-f )

put all the value we get no of sample

n = (2.58 / 0.02 )² × 0.212 ( 1 - 0.212 ) + 0.197 ( 1 - 0.197 )

n = 16641 ×0.3250

no of sample within two percentage points is 5409

in 2nd part no of sample not use prior estimates

here than f and m will be 0.5

than

n = (Z / E )² × m(1-m) + f ( 1-f )

put all value

n = (2.58 / 0.02 )² × 0.5 ( 1 - 0.5 ) + 0.5 ( 1 - 0.5 )

n = 16641 × 0.5

no of sample not use prior estimates is 8321

7 0

3 years ago

Which is equivalent to 64 to the 1/4 power

Sladkaya [172]

Answer:

The answer to your question is the first option

Step-by-step explanation:

64 $^{1/4}$

Process

1.- Find the prime factors of 64

64 2

32 2

16 2

8 2

4 2

2 2

64 = 2⁶

2.- Express 64 as a fractional exponent

64 $^{1/4} = 2^{6/4}$

3.- Simplify

64 $^{1/4} = 2^{4/4} 2^{2/4}$

64 $^{1/4} = 2^{1} 2^{2/4}$

64 $^{1/4} = 2\sqrt[4]{2^{2}}$

4.- Result

64 $^{1/4} = 2\sqrt[4]{4}$

5 0

3 years ago

What is 1(z) when z = -7/12

Firlakuza [10]

It will just be -7/12 because anything times 1 stays the same

8 0

2 years ago

Read 2 more answers

PLS HELP!!!!!!!!!!!!!!!!!!!!!!!!

Neporo4naja [7]

Answer:

C) 3/8

C) -8 or 8

B) 84.7

D) 7 1/3

Step-by-step explanation:

Think of an absolute value as just ignoring any negative signs.

8 0

2 years ago

Read 2 more answers

in 2000 the u.s population was 281 million people in 2008 it was 305 million what was the rate of population change per year

irga5000 [103]

The rate of change per year is 3 million per year.

4 0

3 years ago