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tester [92]
3 years ago
11

What are the solutions of x^2=19x +1

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
6 0
X2=19x+1
x2- 19x-1=0 
D=b2-4ac =(19)^2 -4*1*(-1) =365
x1,2=  -b+√D over 2A
x1= 19-√365 over 2 
X2 = 19+ √ 365 over 2

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Midge arranges her Collection of 762 seashells into trays with 8 shells in each tray. Find the number of trays she needs.
lana [24]

Answer:

96 trays

Step-by-step explanation:

762 shells divided into 8 shells in each tray equals 95.25 but you cant have 95.25 trays so it'd be 96.

3 0
3 years ago
URGENT kaser needs $155 to pay for a new mouth piece for her saxophone she has $35 already and save $15 a week that she earns wa
yulyashka [42]

Answer:

A) she needs to earn $120 for her mouth piece

B) it will taker kaser 8 weeks to get enough money for the mouthpiece

Step-by-step explanation:

whats a segment tool? no idea but i can help solve this so you can attempt that part

explaining

so kaser needs $155, she already has $35 and gains $15 a week. i will be assisting you with how to solve for how much she has when she starts saving and how long until she saves it all

process A

155-35 = 120

answer A

she needs to earn $120 for her mouth piece

process B

120 divided by 15 = 8

answer B

it will taker kaser 8 weeks to get enough money for the mouthpiece

8 0
3 years ago
X -3y = -13 and 4x + 2y = 4
Illusion [34]

Answer: x=−1 and y=4

Step-by-step explanation:

5 0
3 years ago
I'm doing theoretical probobility. Can you help me with this problem. It says to write it is a fraction, decimal, and a percent.
Alchen [17]
So probability is (disred outcomes) divided by (total possible outomces

so
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6 0
3 years ago
I need help with numbers 20,21,and22
julsineya [31]

Answer:

20) the answer is -43

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Step-by-step explanation:

20) \frac{p(p+n^{2})}{6}

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p=-6

we have:

\frac{-6*(-6+(-7)^{2})}{6}\\\\\frac{-6*(-6+49)}{6}\\\\\frac{-6*(43)}{6}\\\\\frac{-258}{6} \\-43

21) mp-(p-(m-n))

m= -1     n=-6   p=-10

-1*-10-(-10-(-1-(-6)))

10-(-10-(5))

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1- \frac{1+1}{2} -5

1- 2/2 -5

1-1-5 =-5

6 0
4 years ago
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