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N76 [4]
2 years ago
14

Please help me guys please

Mathematics
1 answer:
hram777 [196]2 years ago
6 0

c. the number of persons allegric to penicillin

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Can someone help me with number 8 plz
statuscvo [17]
We have the following equation:
 h (t) = - 16t ^ 2 + 161t + 128
 We substitute the value of h (t) = 170:
 170 = -16t ^ 2 + 161t + 128
 We rewrite the equation:
 -16t ^ 2 + 161t + 128 - 170 = 0
 -16t ^ 2 + 161t - 42 = 0
 We look for the roots of the equation:
 t1 = (161/32) + root (23233) / 32
 t2 = (161/32) - root (23233) / 32
 Answer:
 
The object is 170 feet off the ground at the following times:
 
t1 = (161/32) + root (23233) / 32
 
t2 = (161/32) - root (23233) / 32
7 0
3 years ago
Colton has 32 blue marbles and 24 white marbles. If he wants to put them in identical groups without any left over, what is the
Alja [10]
The awnser is 50 because 32 divided by 47 is 50
8 0
3 years ago
Read 2 more answers
Conjecture #2- The product of two rational numbers is always?
Gala2k [10]

Answer:

Rational

Step-by-step explanation:

It is always going to be RATIONAL.

5 0
3 years ago
Elijah earn 200$ for 8 hours of work. what is the unit rate(in dollars per hour)
Marysya12 [62]

Answer: 25 dollars per hour.

Step-by-step explanation: Rate this for free toast.

4 0
3 years ago
What is the best way to solve this
Komok [63]
Make 2 equations one for the price and one for quantity.  so first set x = AA and y= AAA. for price 37= 1x+.75y. now for the quantity we have x+y=42. Now we can solve by subtracting the equation for price from the equation for quantity and we get .25y =5. solving this we get y= 20. Now we plug that value back in and solve for x. 22 double A's and 20 triple A's.
6 0
3 years ago
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