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pantera1 [17]
3 years ago
8

Sample Response: A kite has two pairs of congruent

Mathematics
1 answer:
vlabodo [156]3 years ago
8 0

Answer:it’s A

Step-by-step explanation:

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the amount of radioactive isotope decays in half every year. the amount of isotope can be modeled f(x)=346(1/2)^x and f(1)=173.
max2010maxim [7]
The 346 is the original mass  of the radioactive isotope.
5 0
3 years ago
Read 2 more answers
Two processes in a manufacturing line are performed manually: operation A and operation B. A random sample of 50 different assem
MArishka [77]

Answer:

3.06

Step-by-step explanation:

The correct answer is - 3.06

Reason -

For sample A :

mean, \bar{x_{1} } = 8.05          

Standard deviation, \sigma_{1} = 1.36          

Size, n_{1} = 50          

                 

For sample B :

mean, \bar{x_{2} } = 7.26          

Standard deviation, \sigma_{2} = 1.06          

Size, n_{2} = 38

Now,

\bar{x_{1} } - \bar{x_{2} }  = 8.05 - 7.26 = 0.79

Standard deviation error, SE = √(\sigma_{1}²/n_{1} + \sigma_{2}²/n_{2})  = 0.2580

Now,

Z-statistic = (\bar{x_{1} } - \bar{x_{2} } )/ SE

                = 0.79/0.2580

                = 3.06

⇒Z-statistic = 3.06

4 0
3 years ago
A train leaves train station A and heads due west for 105 miles to reach train station B. Another train leaves train station A a
Vilka [71]
Hello,

Answer A

Theorem of Al Kashi gives:

x²=105²+85²-2*105*85*√2/2=5628.14395...
x=75.0209... (mi)
3 0
3 years ago
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The mathematical model C=500x+70000 represents the cost in dollars a company has in manufacturing x items during a month. How ma
Mashutka [201]

Answer:

500 items

Step-by-step explanation:

plug the $320000 into C

320000=500x+70000

1. substract 70000 from both sides (always get rid of adding/substracting first)

320000=500x+70000

<u>-70000 -70000</u>

250000=500x

2. divide both sides by 500 (you divide both sides by whatever number is in front of x so you can isolate it)

<u>250000/500=500x/500</u>

500=x

there you go :D good luck and have a good day

5 0
3 years ago
Solve for x: x-10= -12
kumpel [21]

Answer:

x = -2

Step-by-step explanation:

Add 10 to both sides of the equation

x−10=−12

−10+10=−12+10

Simplify

Solution:

x= -2

8 0
2 years ago
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