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3 years ago

8 more than 2 times a number is 29.

Mathematics

2 answers:

Masteriza [31]3 years ago

7 0

The answer is 10.5 because the equation is 2x+8=29

IrinaK [193]3 years ago

6 0

Answer:

X = 21/2 = 10 1/2 or 10.5

Step-by-step explanation:

2x + 8:= 29

-8. -8

2x. = 21

divde both sides by 2

x = 21/2 = 10 1/2

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Two ships set sail in different directions from the same place. Tyler's ship sail 35 miles while Noah's ship sails for 42 miles.

earnstyle [38]

Answer:

The angle between their paths when they started is 93°.

Step-by-step explanation:

The Law of Cosines

It relates the length of the sides of a triangle with one of its internal angles.

Let a,b, and c be the length of the sides of a given triangle, and x the included angle between sides a and b, then the following relation applies:

$c^2=a^2+b^2-2ab\cos x$

When the two ships travel in different directions from the same point in the plane, they form an angle we called x in the image below.

Tyler's ship sails a=35 miles and Noah's ship sails for b=42 miles. At some time they are c=56 miles apart.

Since we know the values of all three side lengths, we solve the equation for x:

$\displaystyle \cos x=\frac{a^2+b^2-c^2}{2ab}$

Substituting values:

$\displaystyle \cos x=\frac{35^2+42^2-56^2}{2(35)(42)}$

Calculating:

$\displaystyle \cos x=-\frac{147}{2940}=-\frac{1}{20}$

Computing the inverse cosine:

$x = \arccos(-0.05)$

$x \approx 93^\circ$

The angle between their paths when they started is 93°.

6 0

3 years ago

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Novay_Z [31]

Answer:

The answer could be anything below - 7 degrees Fahrenheit, so

-9 degrees Fahrenheit

8 0

3 years ago

Examine the right triangle. What is the length of the hypotenuse, c? Answers are in the pic

Olenka [21]

a^2+b^2=c^2 <----- the equation to find out sides for a right triangle

7 0

3 years ago

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Which statement illustrates the distritive property

sp2606 [1]

Distributive property is used when you have a number outside a set of numbers in parenthesis.

Using the distributive property, you multiply the number outside the parenthesis by each number inside the parenthesis.

The first answer is correct because they are multiplying 9 by 20 and adding it to 9 multiplied by 6.

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3 years ago

What is y in 4.58 + y = 2.5

SCORPION-xisa [38]

Answer:

y= 2.08

Step-by-step explanation:

4.58 - 2.5

4.58

- 2.50

-----------

2.08

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3 years ago

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