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alexira [117]
3 years ago
6

Solve for a.

Mathematics
1 answer:
KonstantinChe [14]3 years ago
3 0

Answer:

3

Step-by-step explanation:

√7a-10 - √2a+5=0

√7a-10 = √2a+5

7a-10 = 2a+5

5a = 15

a = 3

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rita reads 3 fiction books for every 2 non-fiction books.Which ratio represents the number of non-fiction books rita has read wh
Fudgin [204]

Answer:

6 nonfiction books

Step-by-step explanation:

if it's fiction to non 9:6

if it's non to fiction 6:9

(you may need to simplify)

5 0
3 years ago
A. Find the reflection of the point (-3, 2) about the origin.
nadezda [96]

Answer:

a. (3,-2)

b. (-5,-3)

5 0
3 years ago
In a regional high school swim meet, women’s times (in seconds) in the 200-yard freestyle ranged from 108.5 to 140.6. Estimate t
avanturin [10]

Answer: Estimated the standard deviation α  = 5.35

Step-by-step explanation:

According to Empirical rule, the largest value is approximately:

ц + 3α

And the smallest value is approximately:

ц + 3α

Based on the given figures in the question, we can say

ц + 3α = 140.6

ц - 3α = 108.5

Now subtracting these two; we have

ц + 3α - ( ц - 3α  ) = 140.6 - 108.5

ц + 3α - ц + 3α = 32.1

6α = 32.1

α = 32.1 / 6

α = 5.35

Estimated the standard deviation α  = 5.35

6 0
4 years ago
Una fracción con denominador 5 entre 0 y 1 ?
Liula [17]

Answer:

1/5, 2/5, 3/5, and 4/5

Step-by-step explanation:

6 0
4 years ago
How many solutions does this system of equations have? y=3x+1 y=3x+7
frutty [35]

Answer:

The following system of equation has no solution.

Step-by-step explanation:

since both of them are equal to y, set them equal to each other:

3x+1=3x+7

if you subtract both sides by 3x, you get 1=7. That is a contradiction, so this has no solutions.

8 0
3 years ago
Read 2 more answers
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