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3 years ago

Answer for brainliest and 10 points

Mathematics

2 answers:

attashe74 [19]3 years ago

5 0

The number 7.11 would be identified as A “Rational” number.

Travka [436]3 years ago

4 0

Answer:

It is a rational number.

Step-by-step explanation:

Rational numbers can be represented as a ratio/fraction. So whole numbers are rational with a denominator of 1.

This number can be written as 177/100. It is rational.

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Plzzz hurry up and help me if A+B=45<br>prove that <br>(1+tanA)(1+tanB)=2

Solnce55 [7]

Answer:

see explanation

Step-by-step explanation:

If A +B = 45° then tan(A+B) = tan45° = 1

Expanding (1 + tanA)(1 + tanB)

= 1 + tanA + tanB + tanAtanB → (1)

Using the Addition formula for tan(A + B)

tan(A+B) = $\frac{tanA+tanB}{1-tanAtanB}$ = 1 ← from above

Hence

tanA + tanB = 1 - tanAtanB ( add tanAtanB to both sides )

tanA + tanB + tanAtanB = 1 ( add 1 to both sides )

1 + tanA + tanB + tanAtanB = 2

Then from (1)

(1 + tanA)(1 + tanB) = 2 ⇒ proven

7 0

3 years ago

David and Josh are both practicing for an upcoming swim tournament. Every week, David swims for 3x hours at an average speed of

Ugo [173]

3x = 5(x-4)

I am not sure about the equal sign though.

5 0

3 years ago

Read 2 more answers

HELLPP PLEASE

exis [7]

Answer:

I think it is 1, but I am not 100%

Step-by-step explanation:

Since he stopped the meds at the same time he stopped what couldve been his cousin his reaction to begin with, you can prove if it was medication only.

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3 years ago

An older car weighs 2 tons. A newer model of the car weighs 40 pounds more than the previous model. How much does the newer mode

ExtremeBDS [4]

1 ton. = 2000 pounds
2 tons. = 4000 pounds _old model
4000+40=4,040 pounds_newer model

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3 years ago

zheka24 [161]

Please visit this link: https://youtu.be/_0Ft9HdNg5c

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3 years ago