Please help me solve (with each step) the following: log7 -2b-9=-6

1 answer:

irina [24]3 years ago

5 0

The answer is -10b and it can be solved by any one who put his mind forward

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adoni [48]

Answer:

40 marks was the pass marks of the subject.

Step-by-step explanation:

32.8 + 7.2 = 40 marks { basic addition theory based }

8 0

2 years ago

Ket [755]

Answer:

when a expression is squared (²) that means it is multiplyed by itself.

Step-by-step explanation:

(1/2)² = (1/2 x 1/2)

1 squared = 1

2 squared = 4

1/4 is smaller than 1/2. 1/2 is greater than (1/2)²

3 0

3 years ago

AysviL [449]

Answer:

C. 176.6 Square feet (I think)

Step-by-step explanation:

I tried many different ways and got three of the answers above but I think this is the right one.

The equation to find area of a circular cone base: $A= \pi r^2$

We are given the diameter (15 Feet) but we need to find the radius. So we use the diameter to radius formula: $r = \frac{d}{2}$
Plug in numbers: $r=\frac{15}{2}$ ≈ $7.5$
Use the Area formula now that you have radius: $A=\pi 7.5^2$
Solve and get = $a = 176.71458676$
Looking at the options the closest one to our answer (off by one-tenth) is C.