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3 years ago

Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale.

Mathematics

1 answer:

snow_tiger [21]3 years ago

8 0

Sqrt(7^2 + (23/2)^2) = 13.5 (1 d.p.)

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Prove that 1/1+sinA -1/1+sinA =2tanAsinA

enyata [817]

Step-by-step explanation:

$\frac{1}{1 + \sin( \alpha ) } \frac{1}{1 - \sin( \alpha ) } \\ \frac{1 - \sin( \alpha ) + 1 + \sin( \alpha ) }{(1 + \sin( \alpha ))(1 - \sin( \alpha )) } \\ = \frac{2}{1 - {sin}^{2} \alpha } \\ \frac{2}{ {cos}^{2} \alpha } = 2 \: {sec}^{2} \alpha$

3 0

3 years ago

1.6y + y - 4/15 y + 1 1/6y = 2 1/3 Please help!

Yuri [45]

Answer:

y = 2/7 or y = 14/25

Step by Step explanation:

sorry about the last answer

simplify both sides of the equation, then isolate the variable

8 0

3 years ago

Read 2 more answers

The distane from the spice island to lisbon is 11431 nautical miles and it took magellan and took his crew 100 days to reach Lis

natulia [17]

Answer:

114.31 nautical miles per day

Step-by-step explanation:

Use formula

$S=v\cdot t,$

where S is the distance, t is time and v is rate.

If S=11431 nautical miles and t=100 days, then

$v=\dfrac{11431}{100}=114.31\ \text{nautical miles per day}.$

8 0

3 years ago

only 76 out of every 500 adults consume the daily recommended amount of calcium. what percentage consumes the recommended amount

sweet-ann [11.9K]

15.2% Comsume the recommended amount of calcium.

5 0

3 years ago

Rhonda bought five shirts from a

densk [106]

Answer:

Option C $10+5x=24+3x$

Step-by-step explanation:

Let

x ------> the cost of each shirt

we know that

The cost of 5 shirts plus $10 (amount of money that would remain) must be equal to the cost of 3 shirts plus $24 (amount of money that would remain). Considering that the cost of the shirts is the same

The linear equation that represent this scenario is

$10+5x=24+3x$

Solve for x

$5x-3x=24-10$

$2x=14$

$x=\$7$

8 0

3 years ago