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vitfil [10]
3 years ago
11

What is the product? need help

Mathematics
2 answers:
Degger [83]3 years ago
3 0

\frac{a - 3}{15a}  \times  \frac{5}{a - 3}
Simplify a-3:

\frac{5}{15a}
The solution is:
\frac{1}{3a}
xxMikexx [17]3 years ago
3 0
This question looks like it would have two questions and the two answer that I have are A and B 
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How many integers between 100 and 400 contain the digit 2?
Semenov [28]
102, 112, 120-129, 132, 142, 152, 162, 172, 182, 192, 200-299, 302, 312, 320-329, 332, 342, 352, 362, 372, 382, 392
2+10+7+100+2+10+7
138 integers.
8 0
3 years ago
How would you prove this trigonomic identity? Please show steps.
Agata [3.3K]

Start by combining the fractions:

\dfrac{\cos\alpha}{1+\sin\alpha}\cdot\dfrac{1-\sin\alpha}{1-\sin\alpha}+\dfrac{\cos\alpha}{1-\sin\alpha}\cdot\dfrac{1+\sin\alpha}{1+\sin\alpha}

\dfrac{\cos\alpha(1-\sin\alpha)+\cos\alpha(1+\sin\alpha)}{(1+\sin\alpha)(1-\sin\alpha)}

\dfrac{2\cos\alpha}{1-\sin^2\alpha}

Recall the Pythagorean identity:

\dfrac{2\cos\alpha}{\cos^2\alpha}

Then cancel a factor of \cos\alpha and use the definition of secant:

\dfrac2{\cos\alpha}=\boxed{2\sec\alpha}

4 0
3 years ago
Ram travels 200 km in 2 and a half hours by a car, how long would he take to travel 140
MrRissso [65]

Answer:

x=1.75 hour

Step-by-step explanation:

200km=2.5

140km=x

2.5 * 140=200x

350=200x

x=350/200

x=1.75

the time it will take is x=1.75 hour

4 0
2 years ago
For Exercises 19-24, suppose m is the line with equation x = -5, line n is the line with equation y = 1, line g is the line with
shtirl [24]

Answer:

dgff

Step-by-step explanation:

6 0
2 years ago
What the nearest tenth
kodGreya [7K]

1 hour = 60 minutes.

Divide the number of words per hour by 60:

86 / 60 = 1.433333

Rounded to the nearest tenth = 1.4 words per minute.

3 0
3 years ago
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