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kirill [66]
3 years ago
5

ezra uses his bank account to buy gasoline for his car 3 times. each time he buys gasoline, it costs $18.50

Mathematics
1 answer:
Vika [28.1K]3 years ago
3 0

Answer:

$55.30

Step-by-step explanation:

you multiply the cost of gas by howmany times he has bought gas.

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You spend $4.50 on 5 pounds of apples. What is the unit rate in dollars per pound?
vredina [299]

Answer:

$0.90 per pound.

Step-by-step explanation:

4.50:5

5/5=1

4.50/5=0.90

5 0
3 years ago
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12% is 90% of what number?
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The highest mountains in the world are the Himalayas, at the border between the Indian and Eurasian plates. The Himalayas formed
Advocard [28]

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transform boundary

Step-by-step explanation:

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3 years ago
Which of the following tables represents exponential functions ?
solong [7]
The bottom two because they rapidly go up or down super fast. If it’s an exponential function, it will start off as super low or super high and then shoot up or down rapidly
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3 years ago
Prove this trigonometric equation;<br><br> - tan^2x + sec^2x = 1,
alekssr [168]
Hey there :)

- tan²x + sec²x = 1    or    1 + tan²x = sec²x

sin²x + cos²x = 1 
Divide the whole by cos²x

\frac{sin^2x}{cos^2x} + \frac{cos^2x}{cos^2x} = \frac{1}{cos^2x}

\frac{sinx}{cosx} = tanx so \frac{sin^2x}{cos^2x} = tan^2x
and
\frac{1}{cosx} = secx so \frac{1}{cos^2x} = sec^2x

Therefore,
tan²x + 1 = sec²x
Take tan²x to the other side {You will have the same answer}

1 = - tan²x = sec²x or sec²x - tanx = 1

3 0
3 years ago
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