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melisa1 [442]
3 years ago
7

Can someone solve this for me? Thanks.

Mathematics
1 answer:
erik [133]3 years ago
6 0
Use this formula
log_{5}(10x + 5)  -  log_{5}(x - 7)  =  \\  log_{5}( \frac{10x + 5}{x - 7} )

after thet you have

log_{5}( \frac{10x + 5}{x - 7} )  = 2
open this up

\frac{10x + 5}{x - 7}  =  {5}^{2}
and from now you sould be fine!
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There are 6 times as many dogs as cats.If the total number of dogs and cats is 21, how many dogs are there?
Basile [38]
There are 18 dogs I think!
5 0
3 years ago
Read 2 more answers
Which answer does NOT correctly describe the graph of y = 5x + 12?
Svetlanka [38]
<h2>Answer</h2>

2. The Graph Contains The Point (5, 12)

<h2>Explanation</h2>

Remember that in a linear function of the form y=mx+b, m is the slope/rate of change of the line and b is the y-intercept.

From our equation we can infer that b=12, so the y-intercept of our graph is 12 units above the origin on the point (0, 12). Therefore, choice 2 correctly describe the graph of y = 5x + 12

We can also infer that m=5, so the slope of our line is 5, which is constant, so our line has a constant rate of change. Also, since every integer can be written as a fraction with denominator 1, we can write our slope as m=\frac{5}{1}. Therefore, choices 1 and 2 correctly describe the graph of y = 5x + 12.

Now, remember that any point on the plane has coordinates (x,y), so, to check if a point is on a line, we just need to replace the x and y values in the line equation and check if the equation holds. Our point is (5, 12), so x = 5 and y = 12. Lets replace the values in our line:

y=5x+12

12=5(5)+12

12=25+12

12\neq 37

Since the equation equation doesn't hold (12 is not equal 37), we can conclude that the graph doesn't contain the point (5, 12). Therefore, choice 2 does NOT correctly describe the graph y = 5x +12.


7 0
4 years ago
Read 2 more answers
What is the base and exponent of 2 to 5
Lena [83]
The base is 2, the exponent is 5. You're welcome. ;)
6 0
3 years ago
Which graph represents the function f (x) = StartFraction 5 minus 5 x squared Over x squared EndFraction?
Aloiza [94]

Answer:

B

Step-by-step explanation:

Edge 2021

8 0
3 years ago
Read 2 more answers
Plz help i need it now
ki77a [65]
Y=88
x=42
becase y minus it by 180

7 0
3 years ago
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