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timama [110]
3 years ago
9

Please help i have 1 hour to complete this

Mathematics
2 answers:
densk [106]3 years ago
7 0
Then complete it so you can pass .
Law Incorporation [45]3 years ago
6 0

Answer:

for the first one its C,D and E

but for the second one i dont

know so sorry

Step-by-step explanation:

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SImplify and divide the following radical expression: √2/√6
kap26 [50]

Answer:   so the square root od 2 is 1 and 2

and the square root of 6 is 2 and 3

and idk the simplist for for it srry

Step-by-step explanation:

5 0
3 years ago
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Help me!!!!!!!!!!!! And look at the picture plzzzz!!!!
liubo4ka [24]

Answer: 72

Step-by-step explanation:

Set it up as a ratio

\frac{12}{15} =\frac{x}{90} \\15x=1080\\x=72

5 0
3 years ago
If 1/2 of all the books at a bookstore are fiction and 3/5 of the books in fiction
lubasha [3.4K]

Answer:

\frac{3}{10}

Step-by-step explanation:

we know that

To find the fraction of the store's books that are fiction mysteries, multiply 1/2 by 3/5

so

(\frac{1}{2})(\frac{3}{5})=\frac{3}{10}

6 0
3 years ago
What is the recursive formula for this geometric sequence?–2, –16, –128, –1024, ...
Tatiana [17]

Answer:

b_n=-2\cdot 8^{n-1}

Step-by-step explanation:

Denote first four terms of the geometrc sequence as

b_1=-2,\\ \\b_2=-16,\\ \\b_3=-128,\\ \\b_4=-1024.

Note that

b_2=b_1\cdot q\Rightarrow -16=-2\cdot 8;\\ \\b_3=b_2\cdot q\Rightarrow -128=-16\cdot 8;\\ \\b_4=b_3\cdot q\Rightarrow -1024=-128\cdot 8.

Then the common ratio is

q=8.

Therefore, the recursive formula for the geometric sequence is

b_n=b_1\cdot q^{n-1}\Roghtarrow b_n=-2\cdot 8^{n-1}.


5 0
3 years ago
Find the equation of a line passing through A (4,0) and tangent to the circle <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id=
Nikitich [7]

Answer:

y = -1/√3 (x − 4)

Step-by-step explanation:

Let's say the point where the tangent line intersects the circle is B (bₓ, bᵧ).  Therefore:

bₓ² + bᵧ² = 4

The slope of the tangent line at that point is dy/dx, which we can find with implicit differentiation:

x² + y² = 4

2x + 2y dy/dx = 0

2y dy/dx = -2x

dy/dx = -x/y

At point B, the slope of the tangent line is m = -bₓ/bᵧ.

We can also write that as the slope between the points A(4, 0) and B(bₓ, bᵧ).

m = (bᵧ − 0) / (bₓ − 4)

m = bᵧ / (bₓ − 4)

Setting the expressions equal:

-bₓ / bᵧ = bᵧ / (bₓ − 4)

bᵧ² = -bₓ (bₓ − 4)

bᵧ² = 4 bₓ − bₓ²

Substituting this into the first equation:

bₓ² + (4 bₓ − bₓ²) = 4

4 bₓ = 4

bₓ = 1

Therefore, bᵧ = √3.  So the slope of the line is -1/√3.  The equation of the line is:

y − 0 = -1/√3 (x − 4)

y = -1/√3 (x − 4)

Graph: desmos.com/calculator/sornb1ajgp

3 0
3 years ago
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