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Gre4nikov [31]
3 years ago
8

Looking for a math tutor please message me. I'm in algebra 211th grade.

Mathematics
1 answer:
RideAnS [48]3 years ago
6 0
I ma taking algebra 2 also so i can help any time
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A boat is spotted in the water with an angle of depression of 25° from the top of a lighthouse that is 89 feet tall. To the near
stepan [7]
To calculate this you need to imagine triangle which points are:
boat
Top of lighthouse
Bottom of lighthouse

That triangle has 90 degrees angle at bottom of lighthouse. That means that we can use trigonometry to determine length between boat and bottom of lighthouse

tan(25) = 89/x
x = 89/tan(25)
x = 190.86

after rounding, the answer is D, 191 feet
4 0
3 years ago
Read 2 more answers
A sample of bacteria is growing at an hourly rate of 14% according to the exponential growth function. The sample began with 7 b
tatiyna

Answer:

125

Step-by-step explanation:

x(t) = x0 × (1 + r) t

where:

x(t) = the amount of some quantity at time t

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3 0
3 years ago
4
user100 [1]
The answer is 15 I’m pretty sure
6 0
2 years ago
Request edit access<br> 2. 7x + 4 = -3<br> How to solve
Gre4nikov [31]

Answer:

x= -1

Step-by-step explanation:

7x+4= -3 take -4 off both sides> 7x= -7 now divide 7x/-7> x= -1

7 0
3 years ago
The width of a rectangle is 3.4 feet. The perimeter is 12.6 feet what is the length
lesya692 [45]

Answer:

the answer is 2.90

Step-by-step explanation:

Picture a rectangle, if one side is 3.4 then the other side 3.4. Add those two togerther gives you 6.8. Now you can subtract 6.8 from the perimeter which is 12.6 then that gives you 5.8. Then you split the 5.8 which give you 2.90 which is the length of the rectangle. So if you label all the sides of the rectangle like this 3.4 + 3.4 + 2.90 + 2.90 = 12.6

7 0
3 years ago
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