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2 years ago

If ,. The volume of tetrahedron whose three adjacent sides are represented by vectors is, where means angle between.

Mathematics

1 answer:

marissa [1.9K]2 years ago

6 0

Answer:Given | a⃗ | = | c⃗ | = | c⃗ | = 2 Angle between a⃗ and b⃗ is pi3 a⃗·b⃗ = | a⃗ | | b⃗ |co

Step-by-step explanation:

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3 x (4 + 7) - * 4) + (7)

Zarrin [17]

Answer:

22 assuming the * was a mistake im not sure if u meant the * if u did mean in what does it mean

Step-by-step explanation:

4 0

2 years ago

David wants to buy a new tablet computer. He looks at a sales ad and sees that a computer store is selling a tablet computer for

Jlenok [28]

Answer:

Part A: x÷3=$499

Part B: $1497

Step-by-step explanation:

A: Because to find a fraction of somthing we have to divide, so in this case we divided the original price by 3 to get $499.

B:To find the original price we have to multiply the one third of it ($499) by 3 to get the original amount.

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2 years ago

The vertices of ΔGHI are G (2, 4), H (4, 8), and I (8, 4). The vertices of ΔJKL are J (1, 1), K (2, 3), and L (4, 1). Which conc

Klio2033 [76]

Answer:

They are similar by the definition of similarity in terms of a dilation.

Step-by-step explanation:

The first step is finding the sides of each triangle.

In triangle GHI, we have that:

GH = sqrt((4-2)^2 + (8-4)^2) = 4.4721

HI = sqrt((8-4)^2 + (4-8)^2) = 5.6569

IG = sqrt((2-8)^2 + (4-4)^2) = 6

Now, for the triangle JKL, we have:

JK = sqrt((2-1)^2 + (3-1)^2) = 2.2361

KL = sqrt((4-2)^2 + (1-3)^2) = 2.8284

LJ = sqrt((1-4)^2 + (1-1)^2) = 3

The triangles are not congruent, because the sides are different

They are similar, because their sides have a proportion (sides of GHI are 2 times the sides of JKL). If they are similar, they have the same angles.

The ratio of their corresponding sides is 1:2, not 1:3

The ratio of their corresponding angles is 1:1, not 1:3

3 0

2 years ago

Heyo can i get help?

alisha [4.7K]

Answer: C y=1/3x

Step-by-step explanation:

All Y-values in the table are 1/3 of the corresponding X-value. To check: 3/1=1, 6/3=2, 9/3=3

7 0

3 years ago

Read 2 more answers

What is the value of x for which m || n?<br> x = 40<br> x = 5<br> x = 105<br> x = 30

QveST [7]

Answer:

(A) x=40

Step-by-step explanation:

Given: It is given that m is parallel to n.

To find: The value of x.

Proof: It is given that m is parallel to n, from the figure it can be seen that 105° and (3x-15)° forms alternate exterior angles which are equal in measure because m is parallel to n.

Thus, $105^{\circ}=3x-15^{\circ}$

⇒ $105^{\circ}+15^{\circ}=3x$

⇒ $120^{\circ}=3x$

⇒ $\frac{120}{3}=x$

⇒ $x=40$

Thus, the value of x is 40, hence option A is correct.

4 0

3 years ago

Read 2 more answers