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3 years ago

What is the value of x in the equation? 3 2 5 x + 2 3 4 = 7

Mathematics

2 answers:

Irina18 [472]3 years ago

8 0

$3+2+5+x+2+3+4=7\\\\x=-12$

schepotkina [342]3 years ago

3 0

Answer:

1/65 is the answer. the main part behind it is using subtraction and divison to find the answer

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Need help fast plz for my pre calc exam

bezimeni [28]

Answer:

<em>h = 8.54 units</em>

Step-by-step explanation:

<u>The Law of Cosines </u>

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:

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

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

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

For the triangle ABC in the image, a=10, b=15, c=13, thus:

$\displaystyle \cos A=\frac{10^2+15^2-13^2}{2*10*15}$

$\displaystyle \cos A=\frac{156}{300}$

$\displaystyle \cos A=0.52$

Thus, A = 58.67°

For the right triangle of height h and hypotenuse 10, we use the sine ratio:

$\displaystyle \sin 58.67^\circ=\frac{h}{10}$

Solving for h:

$h = 10\sin 58.67^\circ$

h = 8.54 units

6 0

3 years ago

PLEASE HELP ILL MARK BRAILIEST! A rectangle has an area of 4 square meters. The width is 1/5 meter. What is the length of the re

Lesechka [4]

Step-by-step explanation:

1/5 x 20 = 4

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3 years ago

Estimate the line of best fit using two points on the line.

Alinara [238K]

The abs were pretty bad and

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1 year ago

Read 2 more answers

11/10=n/14 Please solve this will give brainliest for the correct answer

Talja [164]

$\text{ Hi there! =)}$

$\large\boxed{n = 15.4}$

$\frac{11}{10} =\frac{n}{14} \\\\\text{ Cross multiply to solve for n:}\\\\11 * 14 = 10 * n\\\\154 = 10n\\\\n = 15.4$

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2 years ago

To the nearest mile, what is the total distance that he ran?

ioda

Answer:

where's the picture. to the nearest mile...

Step-by-step explanation:

;-;

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3 years ago