X+y=8
multiply the first equation by 3 to get rid of x
3x+3y=24
3x+2y=14
subtract equation 1 from 2
y=10
substitute to find the value of x
x+10=8
x=-2
Answer:
0.00466
Step-by-step explanation:
8+7+10+6 = 31
(8C2×7C3×10C4×6C5) ÷ 31C14
= 0.004656415426
= 0.00466 (3 sf)
I’m pretty sure you just do 11-4 and get 7 and then do like 99 divided by 7?
For the answer to the question above, I think that only the <u><em>regular polygons that tessellate are equilateral triangles, squares, and regular hexagons.
</em></u>I hope my answer helped you. Have a nice day!
<h3>
Answer: (pr + 1)(q + 1)</h3>
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Work Shown:
Use the factor by grouping method to get the following.
pqr + pr + q + 1
(pqr + pr) + (q + 1)
pr(q + 1) + 1(q + 1)
(pr + 1)(q + 1)
We can use the FOIL rule, distribution, or the box method to expand out (pr+1)(q+1) to get the original expression again. This helps confirm the answer.