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tigry1 [53]
3 years ago
15

While doing his homework, Bryan thought about the football game, which is why he made a mistake. Instead of raising a number to

the second power, he doubled it and got a two-digit number; this was the reverse of the correct answer. What was the correct answer?
Mathematics
2 answers:
svp [43]3 years ago
6 0

Answer:

9\times2=18 instead of

9^{2}= 81

Step-by-step explanation:

Instead of raising a number to the second power, he doubled it and got a two-digit number; this was the reverse of the correct answer.

If there are no other factors:

We get 9\times2=18 instead of

9^{2}= 81

Virty [35]3 years ago
5 0

Answer: 81

Step-by-step explanation:

Instead of 9^2=81 he did 9*2=18

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When using fraction strips how do you know that to fractions are equivalent
mafiozo [28]
You basically would use how long they are. If you had a strip of 1/2 and a strip of 3/4... with blocks they wouldn't be the same length. The 3/4 blocks would be greater.

However if you matched a 1/2 strip with a 3/6 strip, you can see that they are the same length and are equivalent. 

Of course their is a way to do it mathematically but let me know if you want to see that. 
3 0
4 years ago
An object was launched off the top of a building. The function f(x)=-16x^2+16x+672 represents the height of the object above the
Katarina [22]

Answer:

6x2 + 16x = 672

Reorder the terms:

16x + 16x2 = 672

Solving

16x + 16x2 = 672

Solving for variable 'x'.

Reorder the terms:

-672 + 16x + 16x2 = 672 + -672

Combine like terms: 672 + -672 = 0

-672 + 16x + 16x2 = 0

Factor out the Greatest Common Factor (GCF), '16'.

16(-42 + x + x2) = 0

Factor a trinomial.

16((-7 + -1x)(6 + -1x)) = 0

Ignore the factor 16.

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve:

Simplifying

-7 + -1x = 0

Solving

-7 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '7' to each side of the equation.

-7 + 7 + -1x = 0 + 7

Combine like terms: -7 + 7 = 0

0 + -1x = 0 + 7

-1x = 0 + 7

Combine like terms: 0 + 7 = 7

-1x = 7

Divide each side by '-1'.

x = -7

Simplifying

x = -7

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve:

Simplifying

6 + -1x = 0

Solving

6 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-6' to each side of the equation.

6 + -6 + -1x = 0 + -6

Combine like terms: 6 + -6 = 0

0 + -1x = 0 + -6

-1x = 0 + -6

Combine like terms: 0 + -6 = -6

-1x = -6

Divide each side by '-1'.

x = 6

Simplifying

x = 6

Solution

x = {-7, 6}

Step-by-step explanation:

4 0
3 years ago
Yvette measured the length of her driveway to be 5 meters long. Which of these is an equivalent measurement?
tresset_1 [31]

the answer is c. 16.4 feet in 5 meters

4 0
3 years ago
Read 2 more answers
Suppose you take a survey of all the schools in your state. What would you expect the relationship between the number of student
Slav-nsk [51]
I think the best option would be C
7 0
4 years ago
Help me!!!!!!!!!!!!!
RSB [31]
I will be using a practice problem with different endpoints, and I challenge you to solve this one using a similar strategy. The points I will be using is 
(1, 3) as T and (5, 4) as the midpoint

Alright - we know that the equation for the midpoint of a line segment is 
( \frac{ x_{1} + x_{2} }{2} , \frac{ y_{1} + y_{2} }{2} ) 
Next, we plug the x values in - since the midpoint's x value is 5 and one endpoint's x value is 1, we have 
\frac{1+x_2}{2} =5 .
Next, we multiply both sides by 2, resulting in 1+x₂=10. Lastly, we subtract 1 from both sides, meaning that x₂, or the x value of the other endpoint, is 9. For the y values, we use a similar process - 
\frac{3+y_2}{2} =4 .
since 3 is the y value of one endpoint and 4 is the y value of the midpoint. Multiplying both sides by 2, we get 3+y₂=8. Subtracting 3 from both sides, we get y₂=5 and our coordinates for the other endpoint to be (9, 5).

Good luck, and feel free to ask any questions as necessary!

4 0
4 years ago
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