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yaroslaw [1]
4 years ago
6

Evaluate 3+(−4)−8−(−1)

Mathematics
2 answers:
puteri [66]4 years ago
6 0

Answer:

-8

Step-by-step explanation:

3 + (- 4) - 8 - (-1)

-1 - 8 - (-1)

-9 - (-1)

Because there are 2 negative, it changes to a positive

-9 + 1

-8

castortr0y [4]4 years ago
4 0

Answer: - 8

Step-by-step explanation:

3+(−4)−8−(−1)

3 - 4 - 8 + 1

3 - 12 + 1

-9 + 1

- 8

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Its perpendicular, if you need me to explain lmk
6 0
3 years ago
Sin(x+y)-sin(x-y)/cos(x+y)+cos(x-y)=tany<br> how do i verify this?
dsp73

Answer:

Step-by-step explanation:

Numerator

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+

cos

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sin

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−

sin

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sin

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=

2

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sin

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Denominator

cos

x

cos

y

−

sin

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sin

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+

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cos

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+

sin

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sin

y

=

cos

x

cos

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−

sin

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sin

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+

cos

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cos

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+

sin

x

sin

y

=

2

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x

cos

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---------------------------------------------------------------

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2

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sin

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2

cos

x

cos

y

=

2

cos

x

sin

y

2

cos

x

cos

y

=

sin

y

cos

y

and  

sin

y

cos

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tan

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7 0
3 years ago
A jet plane can carry up to 200,000 liters of fuel. It used 130,000 liters of fuel during a flight. What percentage of the fuel
-Dominant- [34]

Given:

Capacity of jet plane = 200,000 liters of fuel

Fuel used during flight = 130,000 liters

To find:

The percentage of the fuel capacity it uses on this flight.

Solution:

According to the question, we need to find 130,000 is what percent of 200,000.

\text{Required percentage}=\dfrac{\text{Fuel used during flight}}{\text{Capacity of jet plane}}\times 100

\text{Required percentage}=\dfrac{130000}{200000}\times 100

\text{Required percentage}=65

Therefore, the jet plane uses 65 percent of fuel capacity during flight.

6 0
3 years ago
Which equation can be used to solve the problem?
const2013 [10]

Answer:

10 * 50%

Step-by-step explanation:

It is simple

just do 10/100 * 50

and you have your answer

3 0
3 years ago
What is the missing length?
mamaluj [8]

Answer:

13.2''

Step-by-step explanation:

lets ? be x

x² + 15² = 20²

x² = 20² - 15²

x = √175

x = 13.2''

so missing length = 13.2''

5 0
2 years ago
Read 2 more answers
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