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Elanso [62]
3 years ago
7

I need help with pre-cal, please!​

Mathematics
1 answer:
marshall27 [118]3 years ago
6 0

Answer:

b ≈ 4.2

Step-by-step explanation:

Using the tangent ratio in the right triangle, that is

tan50° = \frac{opposite}{adjacent} = \frac{BC}{AC} = \frac{5}{b} ( multiply both sides by b )

b × tan50° = 5 ( divide both sides by tan50° )

b = \frac{5}{tan50} ≈ 4.2 ( to the nearest tenth )

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Order the math fact completion rate for each student from the fastest to the slowest.
worty [1.4K]

Answer:

could you put a picture of the work so i can anwser  this question

Step-by-step explanation:

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1000%7D%20%2B%20%5Csqrt%5B3%5D%7B0.027%7D%20-%20%5Csqrt%5B3%5D%7B125%7D" id="
e-lub [12.9K]
Step 1: calculate the cube roots, convert the decimal into a fraction, and calculate the cube roots again

10 + 3 square root 27/1000 - 5

Step 2: calculate the cube root

10 + 3/10 -5

Step 3: subtract the #’s

5 + 3/10

Step 4: calculate and you get

53/10


Answer: 53/10

3 0
3 years ago
The combined average weight of an okapi and a llama is 450 kilograms. The average weight of 3 llamas is 190 kilograms more than
olya-2409 [2.1K]
Okapi=o llama=l

o+l=450

3l=190+o

I cant remember how to work it out but if you have a graphics calculator you would open a calculator page, press Menu:3:1 (solve function) and type in those equations. It would look like this:

solve(o+l=450 and 3l=190o,o)

l=160    o=290

llamas are 160kg and okapis are 290kg. Hope that helped a bit :)
3 0
3 years ago
3(x+4)-1=-7 plz help
tatiyna

Answer:

x = -6

Step-by-step explanation:

3(x+4)-1=-7

Add 1 to each side

3(x+4)-1+1=-7+1

3(x+4)=-6  

Divide by 3

3/3(x+4)=-6/3

x+4 = -2

Subtract 4 from each side

x+4-4 = -2-4

x = -6

5 0
3 years ago
Read 2 more answers
Jerry is a judge. He hears 5 cases in 2 3/8 hours. How many cases does he hear per hour
Serggg [28]

Answer:

Jerry does 2.11 cases per hour (Rounded to 2 decimal places). As we cannot do 0.11 cases. We can say Jerry does 2 cases per hour.

Step-by-step explanation:

to find the number of cases per hour, we have to divide the number of cases by number of hours taken for those cases,

Number of cases per hour = \frac{5cases}{2\frac{3}{8} hours}

                                             =\frac{5}{\frac{19}{8} } \\ cases per hour

                                             =\frac{5*8}{19} cases per hour

                                             =\frac{40}{19} cases per hour

                                              =2.11 cases per hour (Rounded to 2 decimal places)

As we cannot do 0.11 cases. We can say Jerry does 2 cases per hour.

4 0
4 years ago
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