Answer:
1. B-555
2. -532
Step-by-step explanation
1. Since Ana is 555 years younger you would have to find the difference between their ages, since Ana is younger you would subtract her age, B, from her sister's, Beatriz age, who is 555 years older.
2. If Beatriz is 23 and Ana is 555 years younger you just subtract 555 from 23, which is negative 532
X^2 +9x +20 = x*x +5x +4x +5*4 = x(x+5) +4(x+5) = (x+4)(x+5)
hope helped
Answer: 2520 inches.
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269 armies have higher than 5600 goblin soldiers .
<u>Step-by-step explanation:</u>
Step 1: Sketch the curve.
The probability that X>5600 is equal to the blue area under the curve.
Step 2:
Since μ=5600 and σ=750 we have:
P ( X>5600 ) = P ( X−μ > 5600−5600 )=P ( X−μ/σ>5600−5600/750)
Since Z = x−μ/σ and 5600−5600/750=0 we have:
P ( X>5600 )=P ( Z>0 )
Step 3: Use the standard normal table to conclude that:
P (Z>0)=0.5
We have , 538 armies So , armies have higher than 5600 goblin soldiers is :
⇒ 
⇒ 
Therefore , 269 armies have higher than 5600 goblin soldiers .
Answer:
Trigonometric identities describe equalities between related trigonometric expres- sions while trigonometric equations ask us to determine the specific values of the variables that make two expressions equal.