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VARVARA [1.3K]
3 years ago
5

Question in the photo

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Answer:

true

Step-by-step explanation:

it goes up the same amount it goes over to the right

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Find the volume of the parallelepiped with adjacent edges t = 3j – 4j – 6k, u = 3i – 7j – 7k and v = 5i + j + 3k.
Assoli18 [71]

Answer:

94 cubic units

Step-by-step explanation:

The volume of this parallelepiped (the product of area of its base and height) is equal to the absolute value of the scalar triple product |\vec{t}\cdot (\vec{u}\times \vec{v})|

Since

\vec{t}=3\vec{i}-4\vec{j}-6\vec{k}=(3,-4,-6)\\ \\\vec{u}=3\vec{i}-7\vec{j}-7\vec{k}=(3,-7,-7)\\ \\\vec{v}=5\vec{i}+\vec{j}+3\vec{k}=(5,1,3)

we have

|\vec{t}\cdot (\vec{u}\times \vec{v})|=\left|\left|\begin{array}{ccc}3&-4&-6\\3&-7&-7\\5&1&3\end{array}\right|\right|=|3\cdot (-7)\cdot 3+(-4)\cdot (-7)\cdot 5+3\cdot 1\cdot (-6)-5\cdot (-7)\cdot (-6)-3\cdot (-7)\cdot 1-3\cdot (-4)\cdot 3|=|-63+140-18-210+21+36|=|-94|=94\ un^3.

4 0
3 years ago
Blank probability is the prediction ratio of favorable outcomes to the total number of outcomes.
OverLord2011 [107]
Isn’t it the theoretical probability?
6 0
3 years ago
The ordered-pairs.<br> y= 2x
Angelina_Jolie [31]

Answer:

(-1, -2) (0,0) (1,2) (2,4) (3, 6) (4, 8)

Step-by-step explanation:

I fixed it lol. The points are:

(-1, -2) (0,0), (1,2), (2,4) (3, 6) (4, 8)

I hope I helped ^^

6 0
3 years ago
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Can you answer 21 please?!
just olya [345]
We can set up the following equation:

4x + 4(5) = 54

X representa the cost of a salad, and the 4(5) shows how each time she left a tip of 5.

Now we solve:

4x + 20 = 54

Subtract 20 from each side:

4x = 34

Now divide by 4

X = 8.5

So the cost of each salad is $8.50

I hope this Helps!
4 0
3 years ago
Read 2 more answers
Find 2 numbers that have... a product of 49 and a sum of 14
balu736 [363]
Hey there! Two numbers is 7 and 7! (Product=multiply) 7x7=49 and (Sum=add) 7+7=14! Hope this helped! Have a nice day!
7 0
3 years ago
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