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Marrrta [24]
3 years ago
12

I have no clue for both of these please help

Mathematics
1 answer:
bezimeni [28]3 years ago
3 0

Step-by-step explanation:

please give me brainlest

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Solve for this equation<br> z^2-12z=-13
ASHA 777 [7]

Answer:

z=\sqrt{-1}

Step-by-step explanation:

z^2-12z=-13\\z^2-\frac{-12}{+12} =-13+12\\z^2=-1\\\sqrt{z^{2} } =\sqrt{-1}\\ z=\sqrt{-1}

5 0
3 years ago
Whats the density of an object with the length of 5.0 cm a height of 3.0 and width of 15.0 cm and a mass of 24 grams
Sphinxa [80]

Answer:

The density of the object is 0.1067 grams per cubic centimeter. (Rounded off to 4th decimal)

Step-by-step explanation:

Density = [Mass/Volume]

Here we have been given the dimensions of the object.

Volume = Height * Width * Length

Volume = 3.0cm*15.0cm*5.0cm

             =225cm^{3}

Now we can substitute the Mass and the Volume to the density equation.

Density = [Mass/Volume]

             =\frac{24grams}{225cm^{3} }

             =0.1067 grams per cubic centimeter. (Rounded off to 4th decimal)

4 0
3 years ago
What is the number of possible outcomes if three quarters are tossed and the total numbers of heads and tails are counted? A) 2
Gre4nikov [31]

Answer:

D). 8.

Step-by-step explanation:

Each quarter will come up heads or tails  - that is 2 possibilities.

So for  3 tosses the number of outcomes is 2*2*2 = 8.

3 0
3 years ago
Read 2 more answers
rice that costs $480 which is for 8 members is used 20 days. What is the cost of rice which is required for 12 members for 15 da
Ber [7]

Answer:

$540

Step-by-step explanation:

1 member 1 day :$480/80/20 = $3

12 members 15 day = $3 * 12 * 15 = $540

Hope this helps!!!

5 0
3 years ago
Need help!!! solve for p) n = <br>(p-k)<br> ------<br> j<br><br>Sorry for the terrible fraction
almond37 [142]

Answer:

nj +k = p

Step-by-step explanation:

n = (p-k)/j

Multiply each side by j

nj = (p-k)/j *j

nj = p-k

Add k to each side

nj +k p-k+k

nj +k = p

8 0
3 years ago
Read 2 more answers
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