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masya89 [10]
2 years ago
13

Simplify. (5b2−3b+2)+(2b−4) A.5b2+5b+6 B.5b2−5b−6 C.5b2−b−2 D.6b4−2

Mathematics
2 answers:
mylen [45]2 years ago
7 0
The answer is: C

5b^2-b-2
xxTIMURxx [149]2 years ago
3 0

Answer:

5b2 - b -2

Step-by-step explanation:

The answer is (c)

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Is it possible for two numbers to have a difference of 8 and a sum of 1?
topjm [15]

Answer: yes , it is possible

Step-by-step explanation:

Let the first number be x and the second number be y .Then , the sum of the two numbers will be x + y , and their difference will be x - y.

Combining the two , we have :

x + y = 1 ............................... equation 1

x - y = 8 ................................. equation 2

solving the system of linear equation by substitution method. From equation 1 , make x the subject of the formula ,

x = 1 - y ...................... equation 3

Substitute equation 3 into equation 2 ,

1 - y - y = 8

1 - 2y = 8

add 2y to both sides

1 = 8 + 2y

subtract 8 from both sides

1 - 8 = 2y

- 7 = 2y

divide through by 2

y = \frac{-7}{2}

y = - 3.5

substitute y = -3.5 into equation 3 to find the value of x , we have

x = 1 - y

x = 1 - ( - 3.5 )

x = 1 + 3.5

x = 4.5

Let us check :

x + y will be

4.5 + (-3.5) = 1

Also ,

x - y will be

4.5 - (-3.5)

⇒ 4.5 + 3.5 = 8

7 0
3 years ago
Whats the ratio between $76,500 to $100,000
Orlov [11]
Divide each by 100. You get the ratio

765 : 1000

Now divide by 5

153 : 200

You can use this or

0.765 : 1
6 0
3 years ago
Read 2 more answers
The wankel T. rex is in display at the Smithsonian Washington DC scientists estimate that it was 18 years old when it died. Abou
Phoenix [80]

Answer:

About 5,000 kilograms

Step-by-step explanation:

Look on the x-axis for 18 years. Then go up to where the plotted line is on 18 years to find the y-axis or the mass.

5 0
2 years ago
The circumference of a circle is 44 in. What is the area? (Use 22 for .)
Stells [14]

Answer:

Step-by-step explanation:

154 square inches

3 0
3 years ago
What is the relationship between the 6s in 6,600 value of the given digits?
Karolina [17]

The relationship between the 6s in 6,600 value of the given digits

We write the numbers in place value chart

Thousand     Hundreds          Tens      Ones

 6                     6                        0             0

first 6 is in thousands place

next 6 is in hundreds place

6 thousand is 10 times greater than 6 hundred

6000 is 10 times greater than 600


5 0
3 years ago
Read 2 more answers
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