2 years ago

PLZ HELP ME PS JUST GOT DEZ POINTS NOW I HAS ) POINTS DDDUE TOMORROW AND IT IS ONE QUESTION EASY &TH GRAdE

Mathematics

2 answers:

astra-53 [7]2 years ago

4 0

2.666 is equal to 2 2/3

or as an improper fraction: 8/3

tiny-mole [99]2 years ago

4 0

The answer is two 2/3

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Diameter of a circle = 75 cm

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3 years ago

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3 years ago

Verify the identity. 4 csc 2x = 2 csc2x tan x

vlada-n [284]

Step-by-step explanation:

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We start with Left hand side

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$4 \frac{1}{2sin(x)cos(x)}$

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Now we multiply top and bottom by sin(x) because we need tan(x) in our answer

$2\frac{1*sin(x)}{sin(x)cos(x)*sin(x)}$

$2\frac{sin(x)}{sin^2(x)cos(x)}$

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6 0

2 years ago

Some researchers are interested in the GPA difference between freshmen and sophomores. The distributionsof GPAs in both groups a

Sonja [21]

Answer and Step-by-step explanation:

expected value for the diﬀerence in sample means=3.5-3.2=0.3

standard deviation of the sampling distribution of the diﬀerence in sample means

=sqrt((0.5^2/40)+(0.8^2/40))

=0.1492

z=(0.3-0)/0.1492

z=2.01

P(z>2.01)=0.0222

6 0

3 years ago

Read 2 more answers