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densk [106]
2 years ago
6

PLEASE HELP!!!!!!!!!

Mathematics
1 answer:
Veronika [31]2 years ago
4 0
A right triangle has special proportions
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The volume of a cone is 16 pi cubic inches is is 12 inches what is the radius of the cone
Furkat [3]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
there are 120 people attending a wedding reception. There are 16 tables. Some are round and some are square. the round table sea
alexira [117]
So I won't tell you the answer but I will give you a clue. do 120 times 16 - 8 + 6
3 0
3 years ago
Require help with this question
user100 [1]
A) There are a number of ways to compute the determinant of a 3x3 matrix. Since k is on the bottom row, it is convenient to compute the cofactors of the numbers on the bottom row. Then the determinant is ...
  1×(2×-1 -3×1) -k×(3×-1 -2×1) +2×(3×3 -2×2) = 5 -5k

bi) Π₁ can be written using r = (x, y, z).
  Π₁ ⇒ 3x +2y +z = 4

bii) The cross product of the coefficients of λ and μ will give the normal to the plane. The dot-product of that with the constant vector will give the desired constant.
  Π₂ ⇒ ((1, 0, 2)×(1, -1, -1))•(x, y, z) = ((1, 0, 2)×(1, -1, -1))•(1, 2, 3)
  Π₂ ⇒ 2x +3y -z = 5

c) If the three planes form a sheath, the ranks of their coefficient matrix and that of the augmented matrix must be 2. That is, the determinant must be zero. The value of k that makes the determinant zero is found in part (a) to be -1.

A common approach to determining the rank of a matrix is to reduce it to row echelon form. Then the number of independent rows becomes obvious. (It is the number of non-zero rows.) This form for k=-1 is shown in the picture.

5 0
3 years ago
Please help me question is in the picture
Sladkaya [172]

Answer:

1. Down

2. 9 units down

3. Left

4. 5 units left

7 0
2 years ago
A toy rocket is launched straight up into the air with an initial velocity of 60 ft/s from a table 3 ft above the ground. If acc
lakkis [162]

Answer:

Answer:

t = 3.8 s

option 3

Step-by-step explanation:

For this case we have the following equation:

 h (t) = at ^ 2 + v * t + h0

 Substituting values we have:

 h (t) = - 16 * t ^ 2 + 60 * t + 3

 We equate the equation to zero:

 -16 * t ^ 2 + 60 * t + 3 = 0

 We look for the roots of the polynomial:

 t1 = -0.04935053979258153

 t2 = 3.7993505397925817

 We are left with the positive root and round:

 t2 = 3.8 s

4 0
3 years ago
Read 2 more answers
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