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d1i1m1o1n [39]
2 years ago
6

Given u = (2, -8) and v = (8, -2), what is u times v?

Mathematics
1 answer:
jolli1 [7]2 years ago
3 0

Answer:

u\cdot v=32

Step-by-step explanation:

Assuming u and v are vectors, their dot product is u\cdot v where u_1v_1 + u_2v_2:

u\cdot v=u_1v_1+u_2v_2=(2)(8)+(-8)(-2)=16+16=32

Therefore, u\cdot v=32

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Snow cone holders are sold in sleeves of 50. How much paper is needed for each sleeve if the cones have a slant height of 5 inch
Genrish500 [490]

Answer:

The correct answer is

Step-by-step explanation:

Snow cone holders are sold in sleeves of 50.

The cones have a slant height (l) of 5 inches and a radius (r) of 3 inches.

Surface area of each cone holder = π × r × l = π × 15 = 15π square inches.

Surface area of all 50 cones in the sleeve = 15π × 50 = 750π = 2357.143 square inches.

Thus 2357.143 square inches pf paper would be necessary for each sleeve each having 50 cone holders.

5 0
2 years ago
If the width of the rectangle is three times the length and the perimeter of the rectangle is 72 ft, what are the length and wid
goblinko [34]
W=3L
W+W+L+L=72
Replace W with 3L: 3L+3L+L+L=72
8L=72
L=9
W=27
8 0
3 years ago
Find the measure of this angle m 1 = 123 m 8
Anit [1.1K]
If it is parallel lines cut by a transversal then they are probably equal. Alternate exterior.
6 0
2 years ago
Cameron ran 3.8 miles per every 1.9 miles that Samantha ran and if Samantha and 7.6 miles how far did Cameron run
bija089 [108]
3.8 / 1.9 = x / 7.6....3,8 miles to 1.9 miles = x miles to 7.6 miles
cross multiply
(1.9)(x) = (3.8)(7.6)
1.9x = 28.88
x = 28.88 / 1.9
x = 15.2 <== Cameron ran 15.2 miles
8 0
3 years ago
What is the answer to, -2x - 13 = -3x - 5​
shtirl [24]

-2x - 13 = -3x - 5​

Step 1: Combine like terms

x's go with x's (-2x and -3x). To do this add 2x to both sides

(-2x + 2x) - 13 = (-3x + 2x) - 5​

(0) - 13 = (-x) - 5​

- 13 = -x - 5​

normal numbers go with normal numbers ( -13 and -5). To do this add 5 to both sides

(- 13 + 5) = -x + (- 5 +​ 5)

-8 = -x + (0)

-8 = -x

Step 2: Isolate x by dividing -1 to both sides (this will take the negative sign away from the x)

\frac{-8}{-1} =\frac{-x}{-1}

8 = x

x= 8

Hope this helped!

6 0
2 years ago
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