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emmainna [20.7K]
3 years ago
12

How to solve 2x2+50=100

Mathematics
2 answers:
mars1129 [50]3 years ago
8 0

Answer:

x = ± 5

Step-by-step explanation:

Given

2x² + 50 = 100 ( subtract 50 from both sides )

2x² = 50 ( divide both sides by 2 )

x² = 25 ( take the square root of both sides )

x = ± \sqrt{25} = ± 5

Ugo [173]3 years ago
4 0

Answer:

It would be 54.

Step-by-step explanation:

It would be 2 times 2, which is four, and then you would add by 50.

2 x 2 = 4

4 + 50 = 54

So, it will not be 100, it will be 54.

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For any nonzero real number a, the __________ of a is 1/a .
SIZIF [17.4K]

A non zero real number could be written as a/1.

When this gets reversed to be 1/a, it is the multiplicative inverse.

4 0
3 years ago
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What value of k will make this relationship NOT a function?
devlian [24]

Answer:

the correct answer is b.

Step-by-step explanation:

it is b because if you plug in -7, two of the x-values will have -7 making the x-values the same and in order to be a function all x-values have to be different.

6 0
3 years ago
Bridget is 5 years older than Angad. Paul is 4 years younger than Angad. If the total of their
Ainat [17]

Answer: Bridge is 21 years old

Step-by-step explanation:

Ok so after reading the question I already know that B (Bridget), A (Angad) and P (Paul) is 49 in the sum of age. I also know that B=A+5 and P=A-4. After that I can assume B=P+5+4. So now after we gather everything, the age of all of them is the same if we delete 5, 4, 4 (From B=P+5+4 and P=A-4). 49-5-4-4=36. So now lets assume they are all 12 (36/3=12). B is 5 years older so lets add 5 to B. B=17, A=12 and P=8. 8+12+17= 37. We now know that but 37 is 12 under 49, so lets add the average 12/3=4 so we add 4 to all of them. B=21 A=16 P=12. 21+16+12=49. So Bridge is 21 years old, Angad is 16 years old and Paul is 12 years old

5 0
3 years ago
nadia wants to enclose a square garden with fencing has an area of 141 ft.² to the nearest foot how much fencing will she need e
Andreas93 [3]

We know that area of the square is 141 square feet. Therefore, we can figure out the dimension of square using formula for area as shown below:

Area=a^{2}\\141=a^{2}\\a=\sqrt{141}=11.874

We know that fencing is used along the sides of the square. Therefore, amount of fencing required will be equal to perimeter of square.

Hence, we can write:

\text{Amount of fencing}=\text{Perimeter of square}

\text{Amount of fencing}=4a=4(11.874)=47.496

Upon rounding to nearest foot, we get the amount of fencing required as 48 feet.

7 0
3 years ago
What would be the first step according to our order of operations?
poizon [28]

Answer:

C

Step-by-step explanation:

5 0
3 years ago
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