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storchak [24]
3 years ago
12

(50pts)Solve for x: a 7.125 b 6 c 8 d 4.125

Mathematics
2 answers:
Monica [59]3 years ago
4 0

Answer:

b. 6

Step-by-step explanation:

(16x + 9) \degree = 105 \degree \\(corresponding \:  \angle s)  \\ \\16x + 9 = 105 \\  \\ 16x = 105 - 9 \\  \\ 16x = 96 \\  \\ x =  \frac{96}{16}  \\  \\ x = 6

lidiya [134]3 years ago
3 0
The correct answer is 6
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Which of the following shows the sum of the polynomials −3x2+3y2+4x and 4x2−4y+2? A. −3x2+3y2+4x+4x2−4y+2 B. −x2+3y2+4x−4y+2 C.
Fed [463]

-3x² + 3y² + 4x  + 4x² - 4y + 2

Add like terms.

x² + 3y² + 4x - 4y + 2

So the answer is D.

8 0
3 years ago
Read 2 more answers
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
Systems of Equations Word Problem:
Semmy [17]
X= fancy, y= plain
x+y= 7
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3 years ago
8x = 96<br> How would I solve for x
Vaselesa [24]

How to solve your problem

6 0
2 years ago
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W+3 3/8=1 5/6 what is the answer
Annette [7]

W + 3 3/8 = 1 5/6;

W = 1 5/6 - 3 3/8;

W = 11/6 - 27/8;

W = 11/(2*3) - 27/(2*4);

W = (11*4 - 27*3)/(2*3*4);

W = (44 - 81)/24;

W = -37/24 = -1 13/24;

5 0
3 years ago
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