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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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A survey of pet owners found that on average, they spend $1,225 annually per pet, with a standard deviation of $275. Between whi
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B.$675 and $1,775

Step-by-step explanation:

8 0
3 years ago
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1/3x-137.45=252.60 what is the value of x
nikdorinn [45]
The value of x is 1170.15 because first you add 137.45 from both sides of the equation, then your new equation should be 1/3x=390.05. After that you use the keep change flip method to help you divide 390.05 by 1/3 which will be 390.05 times 3 divided by 1 and your final answer should be x=1170.15 or 1170.15
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What is the value of x in the proportion below?<br><br> 57=x21
Rama09 [41]

Answer:

2.71428571429

Step-by-step explanation:

calculator, counted it myself too to check if it's right

2.71428571429

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8 0
3 years ago
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Jessica is 5 years older than her sister Jenna. Jenna tells her sister that in 5 years, she will be as old as Jessica was 5 year
vlabodo [156]

Answer:

x + 5 = (x + 5) - 5, which has no solution ⇒ answer C

Step-by-step explanation:

* Lets study the situation in the problem

- Jessica is 5 years older than her sister Jenna

- After five years Jenna's age will be as old as Jessica was five years ago

- Jenna's age now is x

* Lets change all information above to equation

∵ Janna's age now is x

∵ Jessica is 5 years old than Janna

∴ The age of Jessica now is x + 5

- After 5 years Janna's age will be add by 5 years

∵ Her age now is x

∴ Her age after 5 years will be x + 5

- From 5 years ago Jessica's age was her age now mins 5 years

∵ Her age now is x + 5

∴ Her age from 5 years ago is (x + 5) - 5

∵ Janna's age after 5 years = Jessica age from 5 years ago

∴ x + 5 = (x + 5) - 5

- Lets solve the equation to know how many solution

∵ x + 5 = x + 5 - 5 ⇒ add the like terms

∴ x + 5 = x ⇒ subtract x from both sides

∴ 5 = 0

- But 5 ≠ 0, the two sides of the equation not equal each other

∴ There is no solution for this equation

* The equation is x + 5 = (x + 5) - 5, which has no solution

8 0
3 years ago
Read 2 more answers
Tara's car accelerated from 10 miles per hour to 70 miles per hour in 12 seconds.
Karo-lina-s [1.5K]
It would be: a = v₂-v₁ / t
a = (70-10) / 12
a = 60 / 12
a = 5 m/s²

So, option A is your final answer.

Hope this helps!
3 0
2 years ago
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