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2 years ago

Determine if the following system of equations has no solutions, infinitely many

Mathematics

1 answer:

FrozenT [24]2 years ago

8 0

Answer:

infinitely many solutions

Step-by-step explanation:

x + 6y = -5

3x + 18y = -15

Multiply the first equation by 3

3(x + 6y) = -5*3

3x + 18y = -15

The two equations are identical. This means they have infinite solutions along the line x+6y = -5

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Can someone help me with question please :) .

navik [9.2K]

Answer: C,D

Step-by-step explanation:

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2 years ago

Read 2 more answers

01. Apenas uma das matrizes abaixo é, ao mesmo tempo, quadrada, diagonal e identidade. Identifique-a: a[0,1,0,1]. B[1,0,0,1]. C[

ELEN [110]

Responder:

1 0

0 1

Explicação passo a passo:

Das opções fornecidas:

Todas as opções atendem à condição de uma matriz quadrada, pois todas têm o mesmo número de linhas e colunas (2 * 2)

Para ter uma matriz diagonal, todas as entradas fora da diagonal principal serão Zero.

Por outro lado, a matriz de identidade é um tipo especial de matriz quadrada com uma ao longo da diagonal principal.

Indo por essas condições apenas a matriz (b); atende às três condições.

7 0

2 years ago

Which is greater 3/8 or 6/16

Semmy [17]

Answer:

they are the same

Step-by-step explanation:

They are the same

$\frac{3}{8}\\\\=\frac{3}{8}\times\frac{2}{2}\\\\=\frac{3*2}{8*2}\\\\=\frac{6}{16}$

7 0

2 years ago

Tell whether the system has one solution, infinitely many solutions, or no solution.

d1i1m1o1n [39]

C. The system has no solution.

4 0

2 years ago

The flagpole in front of CB East casts a shadow 40 feet long when the measurement of the angle of elevation to the sun is 31˚. H

IRINA_888 [86]

Answer: The length of flagpole is 24 feet.

Step-by-step explanation:

Since we have given that

Length of shadow =40 feet

Angle of elevation to the sun = $31\textdegree$

In ΔABC,

We can apply "trigonometric rules ",

$\tan\theta=\frac{AB}{BC}\\\\\tan31\textdegree=\frac{AB}{40}\\\\0.6\times 40=AB\\\\24\ feet=AB$

Hence, the length of flagpole is 24 feet.

5 0

2 years ago