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Elden [556K]
3 years ago
6

Use the determinant of the coefficient matrix to determine which of the following linear systems have unique solutions.

Mathematics
2 answers:
Talja [164]3 years ago
5 0

Answer:

1, AND 2

Step-by-step explanation:

EDG 21

dem82 [27]3 years ago
4 0

Answer:

Options A, B.

Step-by-step explanation:

Egde 2021

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Answer:


Step-by-step explanation:

it's either a or c hoped i helped


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3 years ago
The lengths of a certain species of fish are approximately normally distributed with a given mean ll and standard
RoseWind [281]
How are you? Ok so It probably B but I’m not sure so just wait a few minutes till someone else answers because I’m not sure
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Several friends each had 2/5 of a bag of peanuts leftovers from game they realized that they could have bought 2 fewer bags of p
creativ13 [48]
Each friend had 2/5 of a bag of peanuts leftovers and they should've bought 2 fewer bags
Which means that there are 2 extra bags
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7 0
3 years ago
If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure?
Dima020 [189]

*see attachment for the diagram

Answer:

A. 178 units²

Step-by-step explanation:

Surface area of the figure = (surface area of the square pyramid + surface area of the square prism) - 2(base area of the square pyramid)

✔️Surface area of the square pyramid = s² + 2*s*l

Where,

s = side length of square base (w) = 6 units

l = slant height = ?

Use Pythagorean theorem to find l

l = √((w/2)² + y²)

l = √((6/2)² + 5²) = √(9 + 25)

l = √34

l ≈ 5.8 units

Surface area of the square pyramid = 6² + 2*6*5.8 = 105.6 units²

✔️Surface area of square prism:

SA = 2a² + 4ah

Where,

a = w = 6 units

h = x = 3 units

Substitute

SA = 2(6²) + 4*6*3

= 72 + 72

= 144 units²

✔️base area of the square pyramid = s²

s = w

Base area = 6²

Base area = 36 units²

✅Surface area of the figure = (surface area of the square pyramid + surface area of the square prism) - 2(base area of the square pyramid)

Surface area of the figure = (105.6 + 144) - 2(36)

= 249.6 - 72

= 177.6

≈ 178 units²

7 0
3 years ago
Change each decimal to a percent 6.215 show work and steps listed on the side
tiny-mole [99]

Answer:

621.5%

Step-by-step explanation:

To convert 6.215 to a percent, multiply 6.215 by 100%:  6.215(100%) =  621.5%

6 0
3 years ago
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