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Cerrena [4.2K]
3 years ago
12

45% of 20 is what number

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
6 0
45\% \ of \ 20=45\% \times 20=\frac{45}{100} \times 20=\frac{9}{20} \times 20=9

45% of 20 is 9.
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P(x)=2x^3+5x^2-2x-5 find the zeros
pav-90 [236]

Answer:

x-5=0\\x=5

Step-by-step explanation:

7 0
3 years ago
write the following sentence as an equation: x is directly proportional to y and is inversely proportional to the cube of z.
Brrunno [24]

Step-by-step explanation:

x=y

y=1/z^3

Now,

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x=y=1/z^3

5 0
3 years ago
Fraction to tue lowest to 8/16
Stels [109]
\frac{ 8^{(8 } }{16} =  \frac{1}{2}
4 0
3 years ago
Pls help i am on a timer
stich3 [128]

Answer:

x = 1 + \sqrt{2} \ \ or \ 1- \sqrt{2}

Step-by-step explanation:

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x² - 2x - 1 = 0

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Therefore, option B is the right solution.

3 0
2 years ago
I need help with a math question
Julli [10]

Answer:

Question 1: 4.5(10^−7)(2(10^4))

=

9/1000

(Decimal: 0.009)

Question 2:

mass of neutron/mass of electron = 2*10-24/(9*10-28)

2x10^(-24)/9x10^(-28)

d is closest.

Question 3:

4(10^3)(12(10^5))

=4000*1200000

=4*1000*12*100000

=(4*12)*(1000*100000)

=48*100000000

=4800000000

And these things : ^ mean raising the number to become exponets and when I put the number into a bold text thats the answer!

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>!</em><em> </em><em>if</em><em> </em><em>so</em><em> </em><em>pls</em><em> </em><em>mark</em><em> </em><em>brainliest</em><em> </em><em>and</em><em> </em><em>heart</em><em>/</em><em>rate</em><em>!</em>

3 0
3 years ago
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