All categories

3 years ago

Can someone please help me with this

Mathematics

1 answer:

lana66690 [7]3 years ago

7 0

Answer:

a or b.

Step-by-step explanation:

You might be interested in

Calculate (A⃗ ×B⃗ )⋅C⃗ for the three vectors A⃗ with magnitude A = 5.08 and angle θA = 25.6 ∘ measured in the sense from the +x

alexgriva [62]

Answer:

(A⃗ ×B⃗ )⋅C⃗ = - 76.415

Step-by-step explanation:

First we need to calculate (A⃗ ×B⃗ ) :

(A⃗ ×B⃗ ) = A.B.sin (α).n

Where A is the magnitude of A⃗

Where B is the magnitude of B⃗

Where α is the angle between A⃗ and B⃗ = 63.9 - 25.6 = 38.3

Finally n is the vector orthogonal to A⃗ and B⃗

n magnitude is 1 and his direction is given by the right hand-rule

so n = ( 0 , 0 , 1 )

(A⃗ ×B⃗ ) = A.B.sin (α).n = 5.08 . 3.94 . sin (38.3) . (0 , 0 , 1 ) = (0,0,12.4)

C⃗ can be written as C.(0,0,-1) because of his +z - direction

C.(0,0,-1) = 6.16.(0,0,-1) = (0,0,-6.16)

(A⃗ ×B⃗ )⋅C⃗ = (0,0,12.4).(0,0,-6.16) = -76.41480787 = -76.415

8 0

3 years ago

Please help, it is due tonight!

PolarNik [594]

21..................

4 0

2 years ago

Read 2 more answers

Find the area. <br>14 ft 14 ft

Vadim26 [7]

area of a square or rectangle you just multiply length time width. which would be 196ft. You do not specify what shape you need the area of. There are different formulas for all of them.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Given: circle k(O), diameter US, measure of arc RU=50, measure of arc UT=30

sleet_krkn [62]

Answer:

angle RUS = 65 degrees

angle STU = 90 degrees

Step-by-step explanation:

(a) find angle RUS

Given arc RU = 50 degrees, so angle RSU = 50/2 = 25 degrees

Since US is the diameter,

angle URS is a right-angle.

Consider triangle RUS,

sum of angles of a triangle = 25+90+RUS = 180

solve for

RUS = 180 - 25 - 90 = 65 degrees.

(b) Find STU

All diameters span a right angle at the circumference,

since we're given US is a diameter, this means that

angle STU is a right angle.

3 0

3 years ago

Suppose you filled the ice-cream cone shown with your favorite ice-cream. Which measurement BEST describes the

Shalnov [3]

Amount of ice-cream in the cone = 6.3 in³

Solution:

Given data:

Diameter of the cone = 2 in

Radius of the cone = 2 ÷ 2 = 1 in

Height of the cone = 6 in

The value of π = 3.14

Volume of the cone = $\frac{1}{3} \pi r^2 h$

$$=\frac{1}{3}\times 3.14\times 1^2\times 6$

= 6.3

Volume of the cone = 6.3 in³

Amount of ice-cream in the cone = 6.3 in³

6 0

3 years ago

Read 2 more answers