2 years ago

Which expression represents the determinant of A=[-6 -7 -4 -2 ]

Mathematics

2 answers:

Alona [7]2 years ago

7 0

Answer:

C) det(A) = (–6)(–2) – (–4)(–7)

Step-by-step explanation:

The determinant is ad-bc so when you plug in the numbers you get this answer. Also I got it right on Edge 2021 :)

hram777 [196]2 years ago

6 0

Is that the whole problem?

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Karo-lina-s [1.5K]

Answer:

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Step-by-step explanation:

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2 years ago

What is the cube root of -1/512

Stella [2.4K]

Answer:

$-\frac{1}{8}$

Step-by-step explanation:

$\sqrt[3]{-\frac{1}{512}}=\frac{\sqrt[3]{-1}}{\sqrt[3]{512}}=\frac{-1}{8}=-\frac{1}{8}$

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2 years ago

What is the percent of decrease from 100 to 49? Write your answer using a percent sign (%).

slavikrds [6]

Answer:

Step-by-step explanation:

Decrease = 100 - 49 = 51

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3 years ago

-114=-5x-2(4x+18) ????????

SVETLANKA909090 [29]

Primeiro multiplica o -2 com tudo que tem dentro do parenteses (chuveirinho) -114 = -5x -2(4x+18)

-2 . 4x = -8x + -2 . 18 = -36 = -8x-36

Agora soma os números com incógnitas (no caso x)

-114 = - 5x - 8x -36

Joga a incógnita do outro, tornando positiva

-114 = -13x - 36

13x -114 = -36

e o 114 do outro lado, ficando positiva também

13x -114 = -36

13x = - 36 + 114

13x = 78

x = 78 /13

x= 6

ESPERO TER AJUDADO :)

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2 years ago

If 80% of the 400 students at Washington Junior High School passed the ISTEP test, how many students did not pass the ISTEP test

nlexa [21]

Answer:

80 students

Step-by-step explanation:

400/80%=320

400-320=80

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2 years ago