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julia-pushkina [17]
3 years ago
11

The sum of two numbers is 1633 and their difference is 35 . Find the two numbers.

Mathematics
1 answer:
devlian [24]3 years ago
5 0

Answer:

834 and 799

Step-by-step explanation:

x+y=1633

x-y=35

2x= 1668

x=834

y=799

Hope this helps!

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Further analysis of the data for the breakfast cereals in exercise 46 looked for an assocation between fiber content and calorie
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Complete Question:

Attached below as picture.

Answer:

From first graph there is no linear pattern so here linearity assumption violated.

From second graph there is observation is in some pattern like funnel or v shape so there is no constant variance occur that is there is no constant variance for error.

Constant variance for error occur when in residual plot all observation are in scatter everywhere.

From third graph we can say there is positive distribution but for regression analysis we need symmetric that is normal distribution.

Step-by-step explanation:

See graphs attached below.

8 0
3 years ago
Given CDEFG ≌ HIJKL and CD = 12, DE = 13, EF = 10, FG = 11, and GC = 8, what is HI?
Licemer1 [7]
CDEFG \cong HIJKL \Rightarrow\overline{HI}=\overline{CD}
\\\Downarrow\\ \overline{HI}=12


5 0
3 years ago
After releasing of radioactive material into.The atnosphere from.A nuclear.Powe plant in a country in 1988, the hay in that coun
Radda [10]

Answer:

the question is incomplete, so I looked for a similar one:

<em>After the release of radioactive material into the atmosphere  from a nuclear power plant, the hay was contaminated by iodine  131 ( half-life, 8 days). If it is all right to feed the hay to cows  when 10% of the iodine 131 remains, how long did the farmers  need to wait to use this hay? </em>

iodine's half life (we are given x, we need to find b):

0.5A₀ = A₀eᵇˣ

x = 8 days

we eliminate A₀ from both sides

0.5 = eᵇ⁸

ln 0.5 = ln eᵇ⁸

-0.69315 = b8

b = -0.69315 / 8 = -0.08664

since the farmers need to wait until only 10% of the iodine remains (we already calculated b, now we need to find x):

0.1A₀ = A₀eᵇˣ

0.1 = eᵇˣ

ln 0.1 = bx

where b = -0.08664

x = ln 0.1 / -0.08664  = -2.302585 / -0.08664  = 26.58 days

4 0
3 years ago
Plzzzz help meeeeeee​
Amanda [17]

Answer:

34 jerseys

8 Social Media ads

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$360 per TV ad

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2856/84 = 34 jerseys

2000/250 = 8

200*12 = 2400

1800/5 = 360

If you know how many you have and how much they cost multiply

If you know how much was spent and how much they cost divide

If you know how much was spent and how many you have divide

8 0
3 years ago
James knows that he eventually wants to buy a motorcycle, and the model he has in mind costs $5,000. He has found a bank that wi
svetlana [45]

Answer:

3527

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A(t)=P(1+r/n)^nt

5,000=P(1+0.07/12)^12(5)

P=5000/(1+0.07/12)^60

P≈$3,527

4 0
3 years ago
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