4 years ago

What can 90/20 be simplified into

Mathematics

2 answers:

Alex Ar [27]4 years ago

8 0

It can be 9/2 or it can be 4½

kkurt [141]4 years ago

8 0

4 and 1/2... i think...

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HELP “Translate the following statement in algebraic expressions.”

Elanso [62]

Answer:

Step-by-step explanation:

It is translated exactly as you would read it. 4*y - 7

8 0

3 years ago

What are the solutions of the equation x4 - 9x2 + 8 = 0? Use u substitution to solve.

Sedbober [7]

Answer:

$\large\boxed{B.\ x=\pm1\ and\ x=\pm2\sqrt2}$

Step-by-step explanation:

$x^4-9x^2+8=0\\\\x^{2\cdot2}-9x^2+8=0\qquad\text{use}\ (a^n)^m=a^{nm}\\\\(x^2)^2-9x^2+8=0\\\\\text{substitute}\ x^2=t\geq0\\\\t^2-9t+8=0\\\\t^2-t-8t+8=0\\\\t(t-1)-8(t-1)=0\\\\(t-1)(t-8)+0\iff t-1=0\ \vee\ t-8=0\\\\t-1=0\qquad\text{add 1 to both sides}\\t=1\geq0\\\\t-8=0\qquad\text{add 8 to both sides}\\t=8\geq0$

$t=x^2\to x^2=1\ \vee\ x^2=8\\\\x^2=1\Rightarrow x=\pm\sqrt1\to x=\pm1\\\\x^2=8\Rightarrow x=\pm\sqrt8\to x=\pm\sqrt{4\cdot2}\to x=\pm\sqrt4\cdot\sqrt2\to x=\pm2\sqrt2$

4 0

3 years ago

Read 2 more answers

Multiples of 16984 is what I need

goldfiish [28.3K]

To find multiples of a number, simply multiply the number by any whole number. So, I've calculated the first ten mutliples of 16984 for you.
1 * 16984 = 16984
2 * 16984 = 33968
3 * 16984 = 50952
4 * 16984 = 67936
5 * 16984 = 84920
6 * 16984 = 101904
7 * 16984 = 118888
8 * 16984 = 135872
9 * 16984 = 152856
10 * 16984 = 169840

Hope this helps! :)

6 0

3 years ago

PLEASE SHOW YOUR WORK FAM, I NEED HELP

densk [106]

Answer:

76-25= 51

Step-by-step explanation:

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3 years ago

Read 2 more answers

The first three terms of a geometric sequence are as follows. -5, 20, -80 find the next two terms of a sequence give exact value

jeyben [28]

Answer:

320, -1280

Step-by-step explanation:

r = -4

-5 , 20 , -80 , 320 , -1280

4 0

3 years ago