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Crank
2 years ago
7

Expand and simplify (x+3)(x+5)

Mathematics
1 answer:
CaHeK987 [17]2 years ago
4 0
Answer is ^2+8x+15 and this is how you do it

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A number line that represents k > 5
schepotkina [342]

Answer:

any number from 6 and above

3 0
3 years ago
When flying at an altitude of 5 miles, the lines of sight to the horizon looking north and south make about a 173.7 degree angle
oksian1 [2.3K]
5 miles high is one of the sides of a triangle depending on accuracy level
h^2=x^2+y^2
we don't have 2 distances
Tan A=O/a
O=a tan A
We solve for O because the angle is at the top of the line going up and we want the opposite angle that is along the ground
O=5×tan(173.7/2)=90.854033512
The distance he can see is:
90.85*2~181.7 miles

Now we need to find the distance between lines:
The north south distance between each line is 69 miles
thus the number of degrees he will see will be:
181.7/69
=2 19/30
7 0
3 years ago
HELP PLEASE I NEED THIS FOR A TEST!!1<br> Is this a function yes or no?
sukhopar [10]
No, because the input repeated 4 twice and the output repeated 3 twice
6 0
2 years ago
Read 2 more answers
Question is in the picture
Thepotemich [5.8K]

Answer:

$9.00

Step-by-step explanation:

If the price is at 30% discount, this means it is 100-30 = 70% of the original price.

70 \%  \ of \ original \ price = \$ 6.30\\\\\ original \ price = 6.30 \div 70 \%\\\\= 6.30 \times \frac{100}{70}\\\\=\frac{630}{70}\\\\= 9

Hence, original price is $9.00.

3 0
3 years ago
Express 0.000000298 in scientific notation
Olenka [21]
The expression would be 2.98 * 10 to the -7 power? Please tell me if I'm wrong.
5 0
4 years ago
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