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Natalka [10]
3 years ago
9

Please help NO LINKS! OR FILES!!! I REPEAT NO LINKS! OR FILES! Thank you!

Mathematics
2 answers:
Mice21 [21]3 years ago
7 0

Answer:

d

Step-by-step explanation:

ollegr [7]3 years ago
5 0

Answer:

bottom right.

Step-by-step explanation:

udoaidow8w91ue

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David and Amanda are trying to figure out how long they can live off their $12,350 savings if they spend $240 each month. They h
Romashka [77]
David's : y = 12,350 - (240x)
Amanda's : y = 12,350 + (240x)

David's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings


7 0
3 years ago
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Domain and range???!!!!!!
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Answer:

domain={1,-3}

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3 years ago
The lengths of pregnancies are normally distributed with a mean of 269269 days and a standard deviation of 1515 days. a. Find th
kati45 [8]

Answer:

a. 0.38%

b. 266.75 days

Step-by-step explanation:

We have the following data, mean (m) 269 and standard deviation (sd) 15, therefore:

a. The first thing is to calculate the number z:

z (x) = (x - m) / sd

z (309) = (309-269) / 15 = 2.67

When looking in the normal distribution table (attached), we have that at this value of z, the probability is:

P (z> 2.67), that is to say we must look in the table -2.67 and this value corresponds to 0.0038, that is to say 0.38%

b. Find the z-value with a left tail of 44%, i.e. 0.44. We look in the table for this value and what value of z corresponds.

invNorm (0.44) = -0.15

Find the corresponding number of days:

x = z * sd + m

we replace

d = -0.15 * 15 + 269 = 266.75 days

7 0
3 years ago
annie adds 2 spoonfuls of sugar to her tea and sophie adds 3 spoonfuls to her tea. If one spoonful is 4 grams of sugar and a a c
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240%

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if there is 240 grams  then you just put a percent sing but are you asking What is the percentage of sugar in each cup? by spoons?

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