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madam [21]
1 year ago
14

Find the p-value for a two-tailed hypothesis test with a test statistic of z = 2.57.

Mathematics
1 answer:
tekilochka [14]1 year ago
8 0

Answer:

z=10.5. give me brainly

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How is the Distributive Property used to simplify operations with scientific notation
Citrus2011 [14]

Answer:

See explanation

Step-by-step explanation:

Let a,b, and c be real numbers.

The distributive property says that:

a(b + c) = ab + ac

Assuming we want to simplify:

10(5*10^{-1}+150*10^{-3})

We apply the distributive property to get:

10(5*10^{-1}+150*10^{-3}) = 5*10^{-1} \times 10+150*10^{-3} \times 10

We can now use rules of exponents to simplify further:

10(5*10^{-1}+150*10^{-3}) = 5*10^{-1} \times 10^{1} +150*10^{-3} \times 10^{1}

10(5*10^{-1}+150*10^{-3}) = 5*10^{-1 + 1} +150*10^{-3 + 1}

10(5*10^{-1}+150*10^{-3}) = 5*10^{0} +150*10^{-2}

10(5*10^{-1}+150*10^{-3}) = 5*1+1.50*10^{-2}x {10}^{2}

10(5*10^{-1}+150*10^{-3}) = 5*1+1.50*10^{-2 + 2}

10(5*10^{-1}+150*10^{-3}) = 5+1.50*10^{0} = 6.5 \times  {10}^{0}

4 0
4 years ago
What is the equation in point-slope form of a line that passes through the points (5, −3)(5, −3) and (−2, 9)(−2, 9) ? y−3=−2(x 5
vova2212 [387]
(5,-3)(-2,9)
slope(m) = (y2 - y1) / (x2 - x1)
slope(m) = (9 - (-3) / (-2 - 5) = (9 + 3) / -7 = - 12/7

y - y1 = m(x - x1)....point slope form
slope(m) = -12/7
(5,-3)...x1 = 5 and y1 = -3
now we sub...and pay close attention to ur signs
y - (-3) = -12/7(x - 5).....we are not done yet...
y + 3 = -12/7(x - 5) <== ur answer
8 0
4 years ago
Read 2 more answers
Help Please!!
FromTheMoon [43]

Answer: x/9

Step-by-step explanation: quotient means to divide. X is the unknown number and we divide this by 9.

5 0
3 years ago
Michael is 4 years younger than twice his cousin, Damien’s age. The sum of their ages is 46. How old is Damien?
Verizon [17]
Let x = The age of Michael
Let 2x-3 = The age of Michaels cousin
X+2x-3=46
x=16+1/3
X = 49 years

I think that’s the answer I’m not 100% sure though
4 0
3 years ago
Factorise: 54x2 + 42x3 – 30x4
DerKrebs [107]

Answer:

Answer: <u> </u><u>x²</u><u>(</u><u>5</u><u> </u><u>+</u><u> </u><u>4</u><u>2</u><u>x</u><u> </u><u>-</u><u> </u><u>3</u><u>0</u><u>x</u><u>²</u><u>)</u><u> </u>

Step-by-step explanation:

{ \tt{ {5x}^{2}  +  {42x}^{3} -  {30x}^{4}  }}

» First factorise out x²:

= { \tt{ {x}^{2}(5 + 42x - 30 {x}^{2}  )}}

» Then factorise the second bracket using quadratic knowledge:

{ \tt{ =  {x}^{2}(5 + 42x - 30 {x}^{2}  )}}

» The second bracket can not be factorised further because its roots/zeros are not whole numbers

3 0
2 years ago
Read 2 more answers
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