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AURORKA [14]
3 years ago
10

The temperature at the beginning of the day was -4°F temperature dropped 5°F by the end of the day what was the temperature at t

he end of the day?
Mathematics
2 answers:
atroni [7]3 years ago
8 0

Answer:

-9

Step-by-step explanation:

Just subtract -4 degrees to 5 and you'll get -9 degrees. The answer is negative since the starting temprature is negative and the tempature is going down and not up.

lesya692 [45]3 years ago
6 0
The temperature at the end of the day was -9°F
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Are the set of all square numbers under 50 and the set of all triangular numbers that are less than 50 disjoint?
Alina [70]

Answer:

No, the two sets are not disjoint.

Step-by-step explanation:

Set of triangular numbers to 50: 1, 3, 6, 10, 15, 21, 28, 36, 45

Set of square numbers to 50: 1, 4, 9, 16, 25, 36, 49

They have 1 and 36 in common, so they are not disjoint, or in other words, they have some of the same numbers.

7 0
3 years ago
You invest $2,500 in an account that grows 5% each year. what will be your investment amount after 6 years?
lesantik [10]

Answer:  b. $3,374.65

Step-by-step explanation:

The exponential equation of growth (continuously) is given by :-

y=Ae^{rx}, where A is the initial amount, r is the rate of growth ( in decimal) and x is the time period.

Given : You invest $2,500 in an account that grows 5% each year.

i.e.  A= $2,500  and r= 5%=0.05

Then, the equation model this situation will be :-

y=2500e^{0.05x}=2500(1.05)^x

Now, At x= 6

y=2500e^{0.05\times6}\\\\\Rightarrow\ y=2500e^{0.3}=3374.64701894\approx3374.65

Hence, the investment amount after 6 years will be $3,374.65.

4 0
3 years ago
For the rectangular prism shown, answer the following questions. Write your number
rewona [7]
The area is 20
The height is 5
The volume is 60
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6 0
3 years ago
421.2 - 305.8<br> Using mental math
Nitella [24]

Answer:

114.4

Step-by-step explanation:

421.2

-305.2

114.4

8 0
3 years ago
Find variable y<br> : -90=5y-20
NeTakaya

-90= 5y-20

-90+20= 5y-20+20

-70=-5y

-70/-5= -5y/-5

y= 14

7 0
3 years ago
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