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stellarik [79]
4 years ago
5

Tom has been given 35 chores to complete today this morning he finished seven of them how many chores does he have left to do

Mathematics
1 answer:
lord [1]4 years ago
8 0
35-7= 28
so he has 28 left to do 

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4/8 times 3/4 simplified pls and thank you
Ivahew [28]

Answer:

3/8

Step-by-step explanation:

divide out the 4's and you are left with 3/8

3 0
3 years ago
Find a positive number for which the sum of it and its reciprocal is the smallest​ (least) possible. Let x be the number and let
Allisa [31]

Answer:

S(x) = x + \frac{1}{x} --- Objective function

Interval = \{x:x=1\}

Step-by-step explanation:

Given

Represent the number with x

The required sum can be represented as:

x + \frac{1}{x}

Hence, the objective function is:

S(x) = x + \frac{1}{x}

To get the the interval, we start by differentiating w.r.t x

<em>Using first principle, this gives:</em>

S'(x) = 1 - \frac{1}{x^2}

Equate S'(x) to 0 in order to solve for x

0 = 1 - \frac{1}{x^2}

Subtract 1 from both sides

0 -1 = 1 -1 - \frac{1}{x^2}

-1 = - \frac{1}{x^2}

Multiply both sides by -1

1 = \frac{1}{x^2}

Cross Multiply

x^2 * 1 = 1

x^2  = 1

Take positive square root of both sides because x is positive

\sqrt{x^2} = \sqrt{1

x = 1

Representing x using interval notation, we have

Interval = \{x:x=1\}

To get the smallest sum, we substitute 1 for x in S(x) = x + \frac{1}{x}

S(1) = 1 + \frac{1}{1}

S(1) = 1 + 1

S(1) = 2

<em>Hence, the smallest sum is 2</em>

3 0
3 years ago
What is then common difference in the arithmetic sequence 1, 1.25, 1.5, 1.75
belka [17]

a2-a1=1.25-1=0.25

a3-a2=1.5-1.25=0.25

a4-a3=1.75-1.5=0.25

a5-a4=2-1.75=0.25

a6-a5=2.25-2=0.25

As you can see, the difference in this sequence is constant and is equal to 0.25,

7 0
3 years ago
Read 2 more answers
Andy estimated that he would need 75 feet of lumber for a tree house project. he later found that the actual amount of lumber ne
Kipish [7]
Step 1
<span>Calculate the error
</span>error=75-64-----> 11 ft

step 2
<span>Divide the error by the exact value
</span>11/64=0.1719

step 3
<span>Convert that to a percentage 
</span>0.1719*100=17.19%

the answer is
17.19%

8 0
4 years ago
Determine the domain of the following graph:
Rama09 [41]

Answer:

         

Step-by-step explanation:

8 0
4 years ago
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