3 years ago

3 segments represent 10 min, how much is each segment

Mathematics

1 answer:

Hoochie [10]3 years ago

5 0

3 1/3 minutes each since 3 1/3 times 3 is 10

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Helppppppp meeeeeee I don’t understanddddd

scoundrel [369]

Answer:

DF = 9.5

Step-by-step explanation:

Given 2 secants from an external point to the circle, then

The product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant, that is

DE × DF = DC × DB

5(5 + x) = 5(5 + 4.5) ← divide both sides by 5

5 + x = 5 + 4.5

5 + x = 9.5 ( subtract 5 from both sides )

x = 4.5

Then

DF = DE + EF = 5 + 4.5 = 9.5

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3 years ago

How to express cos 3x in terms of cosx

Elena-2011 [213]

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$=\cos^3x-3\cos x\sin^2x$
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$=\cos^3x+3\cos^3x-3\cos x$
$=4\cos^3x-3\cos x$

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3 years ago

The function y = 125(1.13)x represents Mr. Clark's recent investments where x is measured in years. Which is NOT true? A Mr. Cla

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Answer:

Mr. Clark earns more money in year one than in year 5

Step-by-step explanation:

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Drupady [299]

Y = -2x + 4
The slope is -2, therefore the equation is linear.

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3 years ago

Please help me I do not understand this!

Svetach [21]

Answer:

Step-by-step explanation:

70 time 0.5

1. multiply 7 times 5 which equals 35

2. move decimal one time because have a zero in 70

3. your answer is 35

if need help i am here plz ask questions if needed

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3 years ago

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