3 years ago

If it is true that z^2-6=19 then z^2+6=

Mathematics

1 answer:

aleksley [76]3 years ago

6 0

Answer:

no because z^2 + 6= is not "The expression is not factorable with rational numbers."

Step-by-step explanation:

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The missing number in the series?

RoseWind [281]

A)48

Explanation:

2^3 - 2^2 = 8 - 4 = 4
3^3 - 3^2 = 27 - 9 = 18
4^3 - 4^2 = 64 - 16 = 48
5^3 - 5^2 = 125 - 25 = 100
6^3 - 6^2 = 216 - 36 = 180
7^3 - 7^2 = 343 - 49 = 294
8^3 - 8^2 = 512 - 64 = 448

7 0

3 years ago

A pen is being built that is 10 feet long and 20 feet wide. How much fencing material will be ne

schepotkina [342]

I think its perimeter so you do 10x2=20 and 20x2=40 and add 20+40 to get 60 so the answer is 60 cause it says "fencing" which is the outer border

therefore answer is 60 feet

7 0

3 years ago

Read 2 more answers

About 1.15 million people live in a circular region with a population density of about 18,075 people per square kilometer. Find

Tanzania [10]

Step 1

<u>Find the total area</u>

Total area=(1,150,000/18,075)=63.62 square kilometer

The area of a circle is equal to

$A=\pi * r^{2} \\ 63.62= \pi * r^{2}\\r=\sqrt{(63.62/\pi)} \\r=4.5\ km$