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3 years ago

Please help me solve number 1. Urgent.

Mathematics

1 answer:

Neko [114]3 years ago

5 0

Answer:

x^-(3/2) which is (1)

Step-by-step explanation:

squared root of x³ is basically x^(3/2)

And if the question is 1/x^(3/2), then you can simply answer x^-(3/2) which is (1)

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And this one too (1 answer is off on down.)

agasfer [191]

Answer:

(-3,4)

Step-by-step explanation:

I'm not sure of how to explain how it is but basically the point it rotated and then it ends up on the coordinate, (-3,4)

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3 years ago

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What is the difference bewteen a repeating decmail and a terminating decimal

Ganezh [65]

Answer:

a repeating decimal repeats while a terminating decimal ends

Step-by-step explanation:

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2 years ago

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Solve (x + 4)2 – 3(x + 4) – 3 = 0 using substitution. u = Select the solution(s) of the original equation.

bezimeni [28]

Answer:

$\dfrac{-5-\sqrt{21}}{2},\ \dfrac{-5+\sqrt{21}}{2}$

Step-by-step explanation:

For the equation $(x+4)^2-3(x+4)-3=0$ use the substitution $u=x+4.$ Then the equation will take look

$u^2-3u-3=0.$

Solve this quadratic equation:

$D=(-3)^2-4\cdot 1\cdot (-3)=9+12=21,\\ \\u_{1,2}=\dfrac{-(-3)\pm \sqrt{21}}{2}=\dfrac{3\pm\sqrt{21}}{2}.$

Thus,

$x+4=\dfrac{3-\sqrt{21}}{2}\text{ or }x+4=\dfrac{3+\sqrt{21}}{2},\\ \\x_1=\dfrac{3-\sqrt{21}}{2}-4=\dfrac{-5-\sqrt{21}}{2}\text{ or }x_2=\dfrac{3+\sqrt{21}}{2}-4=\dfrac{-5+\sqrt{21}}{2}.$

8 0

3 years ago

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Write the following as an equation. Amy is 16 yrs older than Peter, whose age is 'x' yrs. 6 yrs ago, her age was twice Peter's a

azamat

Amy's current age is 16 years greater than Peter's age, so Amy's current age is equal to x + 16.

6 years ago, Amy's age was equal to twice that of Peter's age at that point, so her age was 2(x - 6).

As currently her age is x + 16 then 6 years ago her age was x + 16 - 6, which is x + 10.

As 6 years ago her age was equal to 2(x - 6) and x + 10, we can see that x + 10 = 2(x - 6).

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3 years ago

Ribbon candy costs $2.50 per foot. How many feet of ribbon can you buy if you have $11.25

schepotkina [342]

Answer:

$4.50

Step-by-step explanation:

11.25 / 2.50 = 4.50

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3 years ago

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