2 years ago

Help me on this math problem!! DUR TONIGHT!!(read all the instructions on the photo so you have all the needed answers)

Mathematics

1 answer:

hichkok12 [17]2 years ago

8 0

Answer:

see the attachment!

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Can someone please help me./ solve.

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Answer:f=99

Step-by-step explanation

solve for f by simplifying both sides of the equation, then isolating the variable.

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3 years ago

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Your Statistics group wanted to determine what percent of Dulles High School senior like pineapple on their pizza. You randomly

balu736 [363]

Answer:

The answer is "0.1040"

Step-by-step explanation:

Margin of error $=Z_{\frac{\alpha}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\$

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2 years ago

Which is greater 3.95, 3 5/6, 3 4/5

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The answer to your question is 3.95, if u divide 5/6 u get 83%, if u then divide 4/5 you get 80%

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3 years ago

What should be added to 8 to make them sum 0

Sergeu [11.5K]

Answer:

-8

Step-by-step explanation:

if you add negitive 8 to 8 then the sum will be 0

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3 years ago

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if a and b are acute angles such that sinA=4/5 and cosB=12/13, calculate, without using tables: sin(a-b)

kolbaska11 [484]

$\sin \alpha = \frac{4}{5} \\ \cos \alpha = \sqrt{1-\sin^2 \alpha }= \sqrt{1- \frac{16}{25} } = \sqrt{ \frac{9}{25} }= \frac{3}{5} \\ \\ \cos \beta = \frac{12}{13} \\ \sin \beta = \sqrt{1-\cos^2 \beta }= \sqrt{1- \frac{144}{169} } = \sqrt{ \frac{25}{169} }= \frac{5}{13}$

$\\ \\ \sin (\alpha- \beta ) =\sin \alpha \cos \beta -\cos \alpha \sin \beta = \frac{4}{5}\times \frac{12}{13}- \frac{3}{5}\times \frac{5}{13} = \frac{48}{65}- \frac{15}{65}= \frac{33}{65}$

Answer:
sin(α-β) = 33/65

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3 years ago