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mylen [45]
3 years ago
8

On Tuesday Shayna bought 7 boxes. On Wednesday half of all the boxes were destroyed. On Thursday there were only 21 left. How ma

ny did she have on Monday?
Mathematics
1 answer:
GREYUIT [131]3 years ago
6 0

Answer:

35

Step-by-step explanation:

Monday=x

Tuesday=7

Wednesday=1/2

Thursday=21

Therefore,

x+7/2=21

=x+7=2*21

=x+7=44

=x=44-7

=x=35

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(2^8 ⋅ 5^−5 ⋅ 19^0)^−2 ⋅ 5 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 2^28 (5 points)
DENIUS [597]

Answer:

the answer is 400

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
1.) Is f(x)=2x^3 + 2x and odd function
Amiraneli [1.4K]

Answer:

yes, no, no

Step-by-step explanation:

For odd functions : −f(x) = f(−x) for all x

For even functions :f(x) = f(−x) for all x

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yes

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8 0
3 years ago
I need help with this
otez555 [7]
Number 4 is D (192)

Number 3 is also D (9x15)

8 0
3 years ago
I NEED YOUR HELP PLEASE GRADES ARE DUE TODAY AND I DONT KNOW HOW TO DO THIS.​
lawyer [7]

Answer:

#1 c. -1

#2 b. 1 is less than or equal to x which is less than or equal to three

#3 a. 37.5 is less than or equal to y which is less than or equal to 87.5

#4 b. 3

#5 b. (2, 3, 4, 5, 6)

#6 d. (45, 55, 65, 75, 85)

Step-by-step explanation:

Domain is the x value and y is the range. For #1 the answer is c because you can't go golfing for -1 hours. For #2, the answer is b because they are all the acceptable values for the domain which is represented by x and x is the time spent at the golfing bay. The answer would not be c because you could go to the bay for 2.75 hours it doesn't have to be just 1, 2, 3.  For #3 the concept is similar because the range aka total cost can be all the values in between 37.5 and 87.5. For #4  a reasonable domain value which is number of people is 3 because you can't have 2.5 people and you can't have -4 people and thus all of the above isn't possible leaving three. #5 is b because you can only have those set numbers to represent people. If you chose a that would mean you could have 1.5 people which isn't possible thus only numbers 2, 3, 4, 5, and 6 are possible. For #6 The answer is d because when you plug in numbers 2, 3, 4, 5, 6 into the x value one at a time and solve the equation, those numbers equal t. Just use your basic knowledge to figure these out there isn't much math you just have to know that domain means x and range means y. y is 9/10 always by itself on one side of the equal sign. When in doubt think, can I have a half a person. Think of the real world and apply to math. Goof luck on future problems!

7 0
3 years ago
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