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Rina8888 [55]
3 years ago
15

Ill mark brainliest please help

Mathematics
1 answer:
Otrada [13]3 years ago
6 0

Answer:

56 cups

Step-by-step explanation:

56 cups=3.5 gallons

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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
4 years ago
Wally bakes muffins. in each batch of 12 muffins, he bakes 8 bluberry muffins write in simplest form the fraction of muffins tha
Flauer [41]
4/12 = 1/3 muffins are not blueberry
6 0
3 years ago
Road sign shows 15 miles in 20 minutes What is the speed in miles per hour
sweet [91]
45miles per hour (MPH)
6 0
3 years ago
If increasing 50 by x% is equal to the result of decreasing 70 by x%. what is the value of x?
ozzi

Increasing 50 by x% can be written as:

50 + \frac{x}{100} =50+0.01x.................(1)

Decreasing 70 by x % can be represented by the expression:

70 + \frac{x}{100} =70-0.01x...........(2)

Now we are given in the question that if we increase 50 by x% and 70 by x%, then the two values are equal.

so equating (1) and (2) , we get

50 +0.01 x =70 - 0.01x

bringing 0.01x to the left side:

50  +0.01x +0.01x = 70

50  +0.02x = 70

taking 50 to the right side, subtracting it from 70

0.02x = 70-50

0.02x = 20

dividing both sides by 0.02

\frac{0.02x}{0.02}  =\frac{20}{0.02}

Answer x=2000

4 0
4 years ago
Helpppppppppppppppppppppppppppppp
jek_recluse [69]
The first one hopes this helps
5 0
3 years ago
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