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Sveta_85 [38]
2 years ago
5

What is the positive solution to the equation below? 81x^2-49=0

Mathematics
2 answers:
Brilliant_brown [7]2 years ago
5 0
The answer is A. x = 7/9
Harman [31]2 years ago
3 0

Answer:

Im pretty sure it would be Letter A: x=7/9

Step-by-step explanation:

You might be interested in
What does this expression mean when it says 2 less than five times a number
Zinaida [17]

Answer:

2 - 5x

Step-by-step explanation:

Answer is in the problem:

2 less than = 2 minus a number ( 2- )

five times a number = 5x ( we don't know what number five is being multiplied by, so we put a variable)

6 0
2 years ago
Jack reads 40 pages per hour. Dave reads at the rate of 3 5 of a pages per minute. Who reads faster? By how many pages per hour
lana66690 [7]

If dave is reading 3.5 then the answer is Dave and he read 170 more pages then Jack.

Step-by-step explanation:

3.5 pages x 60 minutes = 210 pages per hour

210

- 40= 170

170 + 40= 210 so thats how I know 170 is the answer.

3 0
3 years ago
As the distance of a sound wave from its source quadruples, how is the intensity changed?
natulia [17]

Answer:

I think its b

Step-by-step explanation:

because 4×4 is 16

5 0
3 years ago
The Toblerone candy comes in a package like the triangular prism. The bases of the triangles are 2 inches with a height of 2.5 i
castortr0y [4]

Answer: 50 cubic in .

Step-by-step explanation: 10x2= 20 and then 20x2.5=50

6 0
3 years ago
Calculate the mean, median, and mode of the following set of data. Round to the nearest tenth. 10, 1, 10, 15, 1, 7, 10, 10, 1, 6
klemol [59]
First order the data: 
1, 1, 1, 6, 7, 10, 10, 10, 10, 13, 15
the mean is all the numbers added together divided by how many there are, 1 + 1 + 1 + 6 + 7 + 10 + 10 + 10 + 10 + 13 + 15 = 84    84/11 = 7.636364 ≈ 7.6
the median is the number in the middle of the list, count numbers from each end, until you either have one or two left, if one left then its that one, if two left then its half way between the two
the median for your set is 10
The mode is the most common number, in your set 10
5 0
3 years ago
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