Latasha is 9 years old
Explanation: 9+19=28
19-9=10
Answer:
Esther didn't divide the area of the faces by 2.
The correct surface area is 72 cm^2
Step-by-step explanation:
Esther didn't divide the area of the faces by 2.
The correct surface area is:
(4 * 4) + 4((4 * 7)/2)
16 + 4(28/2)
16 + 4(14)
16 + 56 = 72 cm^2
1) <span>x + 24=95
2) 1 / 5x = 10
5x = 10/1
5x = 10
x = 10/5
x = 2
3) b/5 + 15 = 45
b = 5(45-15)
b = 150
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Answer:
x = -1/2 + (i/2)√11 and x = -1/2 - (i/2)√11
Step-by-step explanation:
This polynomial is a quadratic. Its coefficients are a = 1, b = 1 and c = 3.
Thus, the discriminant b^2-4ac is 1^2 - 4(1)(3), or 1 - 12, or -11.
Because the discriminant is negative, the roots are complex.
The roots are:
-1 ±√(-11) -1 ±i√11
x = --------------- = ----------------, so x = -1/2 + (i/2)√11 and x = -1/2 - (i/2)√11
2 2
