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olasank [31]
3 years ago
15

㏒₅(x+4)+㏒₅(x+1)=2 solved

Mathematics
2 answers:
balu736 [363]3 years ago
8 0

Answer:

x= \frac{-5+\sqrt{109} }{2}

or dec. is x= 2.72

AlekseyPX3 years ago
5 0

Answer:x=2.7 x=-7.7

Step-by-step explanation:

Log5(x+4)+Log5(x+1)=2

Log5((x+4)(x+1))=2

Log5(x^2+x+4x+4)=2

Log5(x^2+5x+4)=2

x^2+5x+4=5^2

x^2+5x+4=25

x^2+5x+4-25=0

x^2+5x-21=0

Solving the quadratic equation we get x=2.7 and -7.7

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Please help me with this.
inna [77]

Answer:

Plot and connect (5,4), (3,0) and (7,0).

Step-by-step explanation:

This is in factored form and can be graphed directly from the equation. The equation shows the x-intercepts.

The x-intercepts are found by solving for x using the zero product rule.

(x-3)=0 so x = 3

(x-7) = 0 so x = 7

The intercepts are (3,0) and (7,0). Plot the points. The vertex will occur halfway between these points. 7-3 / 2 = 4/2 = 2. This means the axis of symmetry is at x = 5 and this is the x-coordinate of the vertex too.

Substitute x = 5 into the equation and solve for y.

-(5-3)(5-7) = -(2)(-2) = 4

The vertex is (5,4). Plot it and connect the points.

3 0
3 years ago
What is the square root of negative 100?
Kamila [148]
The square root of negative 100 can be dissected step by step. The square root of 100 is 10 however there is no such thing as square root of something negative, thus the imaginary notion is applied. square root of -1 is equal to i .Hence the answer to this problem is 10 i.
4 0
3 years ago
Read 2 more answers
3 cups 6oz + 2 cups 9oz
Liono4ka [1.6K]
1 cup is equal to 8 oz, so
3 cups x 8 = 24 oz.
you'll do the same for the two cups
2 x 8 = 16 oz
so adding them all together will be 
24 + 6 + 16 + 9 = 55 total oz.

4 0
2 years ago
I NEED HELP PLEASE VERY QUICKLY<br> WITH WORK SHOWN
Lunna [17]
Angles 1 and 3 are the answers
5 0
2 years ago
An article reports "attendance dropped 8 precent this year, to 3800." What was the attendance before the drop?​
trasher [3.6K]

Answer:

approx 4130

Step-by-step explanation:

x * .92 = 3800

3800/.92 = 4130.43478261

4130 approx. attendance before drop

8 0
2 years ago
Read 2 more answers
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