3 years ago

LAM 1 Mod 6 Question 4b-s2.

Mathematics

1 answer:

irakobra [83]3 years ago

8 0

Answer:

there is one line of symmetry if you look closely at the shape

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I Know cuz someone else answered

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frozen [14]

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141.5

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Alvin’s first step in solving the given system of equations is to multiply the first equation by 2 and the second equation by –3

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One solution: 0x + 0.5y = 0

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3 years ago

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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

Tresset [83]

240%

Step-by-step explanation:

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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3 years ago

Assume that adults have IQ scores that are normally distributed with a mean of 101.3 and a standard deviation 19.9. Find the fir

AnnyKZ [126]

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87.9

Step-by-step explanation:

Use a calculator or table to find the z-score that corresponds to 25%.

P(Z < z) = 0.25

z = -0.675

Now find the value that corresponds to that z score.

z = (x − μ) / σ

-0.675 = (x − 101.3) / 19.9

x = 87.9

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3 years ago