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3 years ago

What is the product of -13 and -4

Mathematics

2 answers:

Keith_Richards [23]3 years ago

8 0

Answer:

Step-by-step explanation:

Stella [2.4K]3 years ago

6 0

Answer: 52

Step-by-step explanation: If they're both negative, the answer will be positive. Just add the numbers and you're good!

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The amount of time it takes to see a doctor a CPT-Memorial is normally distributed with a mean of 33 minutes and a standard devi

Eva8 [605]

Answer:

a) Z-score = 0.75

b) Z-score = -32.833

Step-by-step explanation:

Step(i):-

Given that mean of the Population = 33

Given a standard deviation of the Population = 12

Let 'X' be a random variable in a normal distribution

Let 'X' = 42

Step(ii):-

$Z = \frac{x-mean}{S.D}$

$Z = \frac{42-33}{12} = 0.75$

Step(iii):-

Given that mean of the Population = 89

Given a standard deviation of the Population = 1

Let 'X' be a random variable in a normal distribution

Let 'X⁻ = 82

$Z = \frac{x^{-} -mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{82-89}{\frac{1}{\sqrt{22} } } = -32.833$

Z-score = -32.833

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3 years ago

How do you square a scale factor? DONT COPY OFF GOOGLLE

Alinara [238K]

you have to find the scale factor by its length

how to : scale factor = dimension of the new shape ÷ dimension of the original shape

but if it is scaled then do

scale factor = larger figure dimensions ÷ smaller figure dimensions

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2 years ago

Algebra 2 Please Help

hammer [34]

No sé lo que quieres decir

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3 years ago

A forest covers 38,000 acres. A survey finds that 0.4% of the forest is old-growth trees. How many acres of old-growth trees

TEA [102]

276 acres of old - growth trees

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3 years ago

Please help ASAP I also need the answer for part b also

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3 years ago