3 years ago

Ellie is 5 times as old as her sister Emma. In 2 years Ellie will be 3 times as Emma. How old is Emma now?

Mathematics

1 answer:

cricket20 [7]3 years ago

5 0

Answer:

8 years old maybe.

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yuradex [85]

Answer:

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Step-by-step explanation:

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3 years ago

Find f(x) and g(x) so that the function can be described as y=f(g(x))<br> y=(9/x^2)+2

eduard

there are many combinations for it, but we can settle for say

$\bf \begin{cases} f(x)=x+2\\[1em] g(x)=\cfrac{9}{x^2}\\[-0.5em] \hrulefill\\ (f\circ g)(x)\implies f(~~g(x)~~) \end{cases}\qquad \qquad f(~~g(x)~~)=[g(x)]+2 \\\\\\ f(~~g(x)~~)=\left[ \cfrac{9}{x^2} \right]+2\implies f(~~g(x)~~)=\cfrac{9}{x^2}+2$

6 0

3 years ago

Write 9− 16x⁴ as the product of two factors.

Marysya12 [62]

Answer:

The two factors will be $=(3+4x^2)\ and\ (3-4x^2)$

Step-by-step explanation:

We have given the equation $9-16x^4$

We know the algebraic equation $a^2-b^2=(a+b)(a-b)$

As $9-16x^4$ can be written as $3^2-(4x^2)^2$ , as square of 3 is 9 and square of $4x^2$ is $16x^4$

So $9-16x^4=3^2-(4x^2)^=(3+4x^2)(3-4x^2)$

So the two factors will be $=(3+4x^2)\ and\ (3-4x^2)$

6 0

3 years ago

5th grade math. correct answer will be marked brainliest

juin [17]

X 6

i’m pretty sure this is right

3 0

3 years ago

Read 2 more answers

Which situation can be represented by 3s = 5s - 6 ?

grin007 [14]

Answer:

First one

Step-by-step explanation:

3s=5s-6

8 0

3 years ago