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AleksAgata [21]
3 years ago
7

Solve each quadratic equation by the square root method. X^2+2x-3=0

Mathematics
1 answer:
densk [106]3 years ago
4 0
Move all terms to the left side and set equal to zero. then set each factor equal to zero. x=1,-3
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jason wants to choose 9 players for his track team ,there are 12 players to choose from.how many different teams can jason make?
Schach [20]
He could only make one team, considering that if you do 12-9, you are left with 3, and Jason wants to have his team consisted of 9 players. However, if you make 3 teams with 4 players on each team, or 4 teams with 3 players on each team, you could do that as well. 
6 0
3 years ago
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B)the LCM of three numbers is 24 and their G.C.D is 4. If two<br>find the other number​
kicyunya [14]

6

Step-by-step explanation:

because 6*4=24, so the G.C.D is 4 and the other number is 6

4 0
3 years ago
One week Alaina ran 12 miles in 131.25 minutes. The next, Alaina ran 12 miles in 119.5 minutes. If she ran in a constant pace du
vlabodo [156]
Ou should not increase to more than 12 miles next week<span>; ... </span>25 miles<span> a </span>week<span>, usually a 7 </span>milerun<span> ... before I </span>run<span> a half. Using that method</span>
6 0
3 years ago
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Complex numbers are often used when dealing with alternating current (AC) circuits. In the equation V = IZ, V is voltage, I is c
gizmo_the_mogwai [7]
V=IZ\\\\1+i=I\cdot(2-i)\quad|:(2-i)\\\\\\I=\dfrac{1+i}{2-i}=\dfrac{(1+i)(2+i)}{(2-i)(2+i)}=\dfrac{2+i+2i+i^2}{2^2-i^2}=\dfrac{2+3i-1}{4-(-1)}=\dfrac{1+3i}{5}\\\\\\\\\boxed{I=\frac{1+3i}{5}=\frac{1}{5}+\frac{3}{5}i}
4 0
2 years ago
What is the equal equation?
Nataly_w [17]
We can use the distributive property to simplify this expression.

I split this up into different parts--it helps me visualize better.

To begin, "-2m(m + n - 4)" becomes "-2m^2 - 2mn + 8m"

Then, "5(-2m + 2n)" becomes "-10m + 10n"

Finally, "n(m + 4n - 5)" becomes "mn + 4n^2 -n"

We can then simplify even further by combining like terms. The final expression is: C

Hope this helps!
3 0
3 years ago
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