3 years ago

4(x + y) in expanding form

Mathematics

1 answer:

Tpy6a [65]3 years ago

5 0

The answer is 4x + 4y

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Can u guys help me with this and explain it plzzz! Thank u!

denis23 [38]

Answer:

i think it is 45.6

24%/100 x (x/190) = x

that is the formula

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3 years ago

Three consecutive even integers add up to -6 what are they?

DanielleElmas [232]

Answer:

I think this is the answer

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3 years ago

Why is the numerator greater than the denominator in a fraction that is equivalent to a percent greater than 100?

Anettt [7]

I don’t know I think someone else is gonna help u

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3 years ago

Sin(cos^-1 x)<br><br> how to solve?

tatiyna

Answer:

$sin(cos^{-1}x)=\sqrt{1-x^2}$

Step-by-step explanation:

let us assume

$cos^{-1} x=\theta\\x=cos\theta\\$

now

$sin(cos^{-1}x)$ can be written as $sin\theta$

we know $sin^2\theta+cos^2\theta=1$

so $sin^2\theta=1-cos^2\theta$

$sin\theta=\sqrt{1-cos^2\theta}$

now from above equation we can say that

$sin\theta=\sqrt{1-x^2}$

$sin(cos^{-1}x)=\sqrt{1-x^2}$

7 0

3 years ago

For the function

jeka57 [31]

Answer:

x = 1

Step-by-step explanation:

For a quadratic function $f(x)=ax^2+bx+c$ , the axis of symmetry is

$x=-\frac{b}{2a}$ .

This comes from using part of the Quadratic Formula for finding zeros of the function:

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} = \frac{-b}{2a} \pm \frac{\sqrt{b^2-4ac}}{2a}$

See the -b/(2a) in the first term? That's the x-coordinate of the vertex (turning point) of the parabolic graph of the function. The axis of symmetry goes through the vertex.

5 0

3 years ago