3 years ago

Find the value of x. Write your answer in simplest form.

Mathematics

1 answer:

katrin2010 [14]3 years ago

5 0

Answer:

X=8

Step-by-step explanation:

$(8 \sqrt{2} ) ^{2} = {x}^{2} + {x}^{2} \\ 128 = 2 {x}^{2} \\ {x}^{2} = \frac{128}{2} \\ {x}^{2} = 64 \\ x = 8$

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Charra [1.4K]

Answer:

7.2

Step-by-step explanation:

Apply Law of Cosines, given that b is 13.5, c is 8.9, and Angle a is 29.

${a}^{2} = {b}^{2} + {c}^{2} - 2bc \cos(a)$

${a}^{2} = {13.5}^{2} + {8.9}^{2} - 2(13.5)(8.9) \times \cos(29)$

${a}^{2} = 182.25 + 79.21 - 240.3 \times 0.8746$

${a}^{2} = 182.25 + 79.21 - 210.1711$

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3 years ago

Read 2 more answers

Which expression is equivalent to 4 (3n - 5)?

Fynjy0 [20]

12n - 20 is the answer

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3 years ago

A 120-gallons (gal)tank initially contains 90 lb of a salt dissolved in 90 gal of water. Brine containing 2 lb/gal of salt flows

Anna007 [38]

Answer:

The tank will contain 202 Ib of salt when it's full.

Step-by-step explanation

To find the amount of salt in the tank at time <em>t= x(t)</em>

If <em>x</em>(0)= 90Ib

To find the volume of the tank at time t

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Other solutions are found attached

Download docx

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Nadusha1986 [10]

It’s the second one

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3 years ago

Josh is painting all the walls in his room that is 3m x 4m and 2.75m high, How much paint in square feet is needed?

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Answer:

Step-by-step explanation:

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