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3 years ago

I NEED HELP NOW OR I RPEAT 8

Mathematics

1 answer:

trasher [3.6K]3 years ago

8 0

Direct Variation x = 5y

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Can someone help me please

mart [117]

Your answer is D 6561 multiply each number 3 and your answer will be this

5 0

2 years ago

What is an equation of the line that passes through the point (4, -1) and has

Nuetrik [128]

Answer:

y + 1 = -5(x - 4)

y + 1 = -5x + 20

y = -5x + 19

8 0

2 years ago

Factor –7x3 + 21x2 + 3x – 9 by grouping. What is the resulting expression?

spin [16.1K]

Answer:

The answer is the third option

3 0

2 years ago

Read 2 more answers

Si el largo de un rectángulo mide el doble del ancho que es "a", ¿cuál es su área?

rosijanka [135]

Answer:

El área es 2 veces el cuadrado del ancho del rectángulo.

Step-by-step explanation:

El área de un rectángulo viene dado por:

$A = a*l$

En donde:

a: es el ancho

l: es el largo

Si el largo es el doble del ancho:

$l = 2a$

Entonces el área es:

$A = a*l = a*(2a) = 2a^{2}$

Por lo tanto, el área es 2 veces el cuadrado del ancho del rectángulo.

Espero que te sea de utilidad!

6 0

2 years ago

If neither a nor b are equal to zero, which answer most accurately describes the product of (a + bi)(a - bi)?

Scrat [10]

Answer: the correct option is

(D) The imaginary part is zero.

Step-by-step explanation: Given that neither a nor b are equal to zero.

We are to select the correct statement that accurately describes the following product :

$P=(a+bi)(a-bi)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

We will be using the following formula :

$(x+y)(x-y)=x^2-y^2.$

From product (i), we get

$P\\\\=(a+bi)(a-bi)\\\\=a^2-(bi)^2\\\\=a^2-b^2i^2\\\\=a^2-b^2\times (-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{since }i^2=-1]\\\\=a^2+b^2.$

So, there is no imaginary part in the given product.

Thus, the correct option is

(D) The imaginary part is zero.

3 0

2 years ago