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3 years ago

Using the converse of Pythagorean Theorem and the law of sines and cosines solve the word problem.

Mathematics

1 answer:

Helga [31]3 years ago

7 0

Answer:

It's the law of cosines

Step-by-step explanation:

law of cosines states that $c^{2} =a^{2} +b^{2} -2ab (cos(\alpha ))$

so we know that a = 7, b = 4, and alpha would be 135 degrees, so just plugging it in gets us 49+16-2*7*4*(-0.707) = 65 + 39.59 = 104.59

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There is 0.3 kg of tin in a sword.

Sauron [17]

Answer:

2 kg

Step-by-step explanation:

15/100 x = 0.3

x = 0.3 * 100/15

x = 2

7 0

2 years ago

X^3+2/3x^4-1/2x^2 integral

Irina-Kira [14]

$\frac{2 {x}^{5} }{15} + \frac{ {x}^{4} }{4} - \frac{ {x}^{3} }{6} + c$

simplified form =

$\frac{ {x}^{3}(8 {x}^{2} + 15x - 10) }{60} + c$

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3 years ago

Is side “a” considered a leg or the hypotenuse in this right triangle?

skelet666 [1.2K]

Answer:

A leg.

Step-by-step explanation:

The hypotenuse is always the side that is across from the corner. In this triangle, the hypotenuse is 14.

6 0

3 years ago

Read 2 more answers

An airplane travel at a constant speed of 575 miles per hour.write and equation that can be used to determine the number of mile

Oxana [17]

Answer:

$m = 575h$

Step-by-step explanation:

Given

$Rate = 575 miles/hour$

Required

Determine the equation for the model

Represent the number of hours with h and the miles with m.

Using distance formula:

$Distance = Speed * Time$

In this case, it is:

$Miles = Rate * Hour$

So, we have:

$m = 575 * h$

$m = 575h$

3 0

2 years ago

B. Translate each word into algebraic eqaution. (Use any letter)

Paraphin [41]

Answer

1. 9

1. 13

1. 147

1. 7/3

1. 9

Step-by-step explanation:

Algebraic equations

1. 2x=18

2. x-5=8

3. (x/7)=21

4. 3x+5=12

5. 2x=18

4 0

2 years ago