2 years ago

For a one-tailed test with a = .05 and a sample of n = 9, the critical value for the t statistic is t = 1.860.

Mathematics

1 answer:

ahrayia [7]2 years ago

6 0

I think its B. False if im wrong sorry hope this helped tho :p

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Find (12x+12)−(−5x+8). step by step answers please.

Bas_tet [7]

Answer:

Step-by-step explanation:

First add 5x to 12x which becomes 17x and subtract 8 from 12 which becomes 4. So the answer is 17x+4!

6 0

2 years ago

Ab and bc form a right angle at point B. if a= (-3,-1) and B= (4,4) what is the equation of BC?

Vesnalui [34]

Answer:

Option C $-7x-5y=-48$

Step-by-step explanation:

step 1

Find the slope of AB

we have

A(-3,-1) and B(4,4)

The slope m is equal to

$m=(4+1)/(4+3)$

$m=5/7$

step 2

Find the slope of BC

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

$m1*m2=-1$

we have

$m1=5/7$

substitute

$5/7*m2=-1$

$m2=-7/5$

step 3

Find the equation of the line into slope point form

$y-y1=m(x-x1)$

we have

$m=-7/5$

$B(4,4)$

substitute

$y-4=-(7/5)(x-4)$

Multiply by 5 both sides

$5y-20=-7x+28$

$7x+5y=28+20$

$7x+5y=48$

Multiply by -1 both sides

$-7x-5y=-48$

3 0

2 years ago

............... help me please i don’t understand this

Sergio [31]

Answer:

x = 11

Step-by-step explanation:

3 0

2 years ago

If Eight avocados cost $4. How much do 20 avocados cost?

Juliette [100K]

Answer:

$10

Step-by-step explanation:

divide $4 by 8. you get $.50. multiply that by 20 and you get $10

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2 years ago

Combining Like Terms: <br><br> 11z+17-7z-6

Sedaia [141]

Answer:
4z+11
Step-by-step explanation:
11z-7z=4z
17-6=11

7 0

2 years ago

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