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Alona [7]
2 years ago
11

Solve the logarithmic equation. Round to the nearest ten-thousandth if necessary. log(x+9)-log x=3

Mathematics
1 answer:
zheka24 [161]2 years ago
4 0
(√6,0) (√5,-1) (-√6,0) (-√5,-1)
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yuradex [85]

Answer:

p = 1.2

Step-by-step explanation:

Bring 3.9 to the other side of the equation.

-10.9p = -13.08

p = 1.2

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Explain how you can use place value to describe how 0.05 and 0.005 compare
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<span>0.05 is ten times greater than 0.005</span>
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sasha cuts four idenetical circles from a square piece of black poster board as shown what is the left over board use 3.14 for p
oksian1 [2.3K]

Answer:

therefore the left over board is 0.216a^{2} where 'a' is length of a side of the black poster board.

Step-by-step explanation:

i) Sasha cuts 4 identical circles from a square piece of black poster.

ii) let each side of the square piece be a.

iii) let us divide the square piece into four equal square parts from which the four identical circles will be cut

iv) therefore the side of each smaller square will be \frac{a}{2}.

v) therefore the diameter of each identical circle will be \frac{a}{2}

vi) therefore the radius if each of the four identical circles will be \frac{1}{2} \times \frac{a}{2}  = \frac{a}{4}

vii) the area of each of the four identical circles will be = \pi \times (\frac{a}{4} )^{2} = 3.14 \times (\frac{a}{4}) ^{2} = \frac{3.14a^{2}}{16}  = 0.196a^{2}

vii) the area of each of the four smaller squares = \frac{a}{2} \times \frac{a}{2} = \frac{a^{2} }{4}  = 0.25a^{2}

viii) therefore the area left over from each of the four smaller squares

= 0.25a^{2} - 0.196a^{2} = 0.054a^{2}

ix) therefore the left over board is given by 4 \times 0.054a^{2} = 0.216a^{2} where a is length of a side of the black poster board.

4 0
3 years ago
Joey's Cafe has regular coffee and decaffeinated coffee. This morning, the cafe served 35
Travka [436]

Answer:

20%

Step-by-step explanation:

Step 1:

7/35         Divide

Step 2:

1/5         Simplify

Step 3:

20/100        Multiply

Answer:

20%

Hope This Helps :)

4 0
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