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Yanka [14]
3 years ago
7

Help pls );

Mathematics
1 answer:
irakobra [83]3 years ago
3 0

Answer:

d.) \:  \:  \:  \:  \: 17 \sqrt{2}

Step-by-step explanation:

13\sqrt{2} -\sqrt{2} +5\sqrt{2} \\  = 12 \sqrt{2}  + 5 \sqrt{2}  \\  = 17 \sqrt{2}

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Describe the end behavior of the given function <br> f(x)=9x^3-x^2-8x+6<br>​
Mekhanik [1.2K]
As x approaches -inf f(x) -> -inf
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3 years ago
Determine whether the vectors u and v are parallel, orthogonal, or neither.
kodGreya [7K]
<h3>Answer:  orthogonal </h3>

===========================================================

Explanation:

For any two vectors defined as follows

u = <a,b>

v = <c,d>

the dot product is computed by

u dot v = a*c + b*d

If the dot product of the vectors is 0, then the vectors are orthogonal. Meaning they are perpendicular to one another.

-------------------

Let's find the dot product of these two given vectors

u = < 2, -4 >

v = < 6, 3 >

u dot v = 2*6 + (-4)*3

u dot v = 12 - 12

u dot v = 0

Therefore, these two vectors form a right angle and are <u>orthogonal</u>

-------------------

Extra info:

If we can show that u = <a, b> and v = <ka, kb> for some real number k, then we have shown that vectors u and v are parallel.

6 0
3 years ago
The circumference of a standard bowling ball is about 27 in. To the nearest unit, how many square inches is the surface area of
Sidana [21]
The surface area of a sphere is S=4 \pi  r^{2} where r is the radius;
The circumference is 2 \pi r=27 in so that r= \frac{27}{2 \pi }=4.5 in using this value we can evaluate the surface area of 1 ball as:
S=4 \pi r^{2} =4 \pi  (4.5)^{2} =254.3  in^{2}
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4 0
3 years ago
Find the difference.<br> (8ab+a+2) - (3ab+6)
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Answer:

5ab+a-4

Step-by-step explanation:

5 0
3 years ago
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