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2 years ago

10

Albert’s father is 24 years older than Albert. In 8 years, his father will be twice as old as Albert. How old is Albert now? How

old is his father?

1 answer:

kondor19780726 [428]2 years ago

3 0

Answer:

Albert is 24. Albert's father is 48

Step-by-step explanation:

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Approximate the real zeros of f(x)=x2+3x+1 to the nearest tenth.

Bezzdna [24]

I hope this helps you.

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3 years ago

The ratio of width to length of baily's television screen is 3:4. what is the width of the screen if the length is 32 inches

Yuri [45]

If the length is 32 and the ratio is 3:4, you'd do 32 ÷ 4 = 8. The answer is 3 × 8, which is 24 inches. I hope this helps!

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2 years ago

After the last ice age began, the number of animal species in Australia changed rapidly. The relationship between the elapsed ti

stiks02 [169]

Answer:

Every decade, the number of species decays by a factor of 0.0834.

Step-by-step explanation:

Let be $S(t) = 25,000,000\cdot 0.78^{t}$ , $\forall t \geq 0$ . The decay rate per decay is deducted from the following relation:

$\frac{S(t+10)}{S(t)} = \frac{25,000,000\cdot 0.78^{t+10}}{25,000,000\cdot 0.78^{t}}$

$\frac{S(t+10)}{S(t)} = 0.78^{t+10-t}$

$\frac{S(t+10)}{S(t)} = 0.78^{10}$

$\frac{S(t+10)}{S(t)} = 0.0834$

Every decade, the number of species decays by a factor of 0.0834.

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2 years ago

Which binomial is a factor of x4 − 4x2 − 4x 8?

Anastasy [175]

The given polynomial is

$x^4-4x^2-4x-8$

As this is a fourth degree polynomial, we can not directly use any formula, So here we will use hit and trial method

check whether x=-1 is a zero of the polynomial or not

$(-1)^4-4(-1)^2-4(-1)-8=-7$

Hence x=-1 is not a zero.

Now check whether x=-2 is a zero of the polynomial or not

$(-2)^4-4(-2)^2-4(-2)-8=0$

Hence x=-2 is a zero of the polynomial.

Hence we can re-write the polynomial as

$x^4-4x^2-4x-8=x^4+2x^3-2x^3-4x^2-4x-8\\ \\ =x^3(x+2)-2x^2(x+2)-4(x+2)\\ \\ =(x+2)(x^3-2x^2-4)\\$

Hence the required binomial is (x+2)

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3 years ago

What percent of Rs 80 is Rs 20

stellarik [79]

Answer:

Your answer is 25%

Step-by-step explanation:

Hope this helps you

Do mark me as brainliest

3 0

2 years ago