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Vlad1618 [11]
3 years ago
9

the number of students enrolled in school increase by 12% from last year to this year. The enrollment this year is 13,640. What

was the enrollment last year?
Mathematics
1 answer:
algol133 years ago
8 0
Use a calculator. I would walk you through it, but it should be simple.
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What can go into 10.8 and 36
kogti [31]
10.9
35.99999999999999999999999999999999999 (repeating) 
11.1
11.12324343
23.8743894099

Basically any number between 10.8 and 36.
Hope I helped.
7 0
3 years ago
Read 2 more answers
Find the slope of the parametric curve xequalsnegative 4 t cubed plus 8​, yequals5 t squared​, for negative infinity less than t
Licemer1 [7]
Take a picture so I can do the problem
6 0
4 years ago
A helicopter is flying at an elevation of 575 feet directly above a horizontal highway. Two motorists are driving cars on the hi
Ket [755]

Answer:

Distance between cars rounded to the nearest foot is : 1903 ft

Step-by-step explanation:

Notice that two right triangles can be used to represent the diagram of this situation. One between the car whose angle of depression is 28^o, and the other with the car with angle of depression 35^o (see attached image)

Each triangle in the attached image is depicted with a different color. and as one can see, the distance between both cars is the addition of the side "x" in one triangle, to the side "y" in the other.

Notice as well that the information known for both right-angle triangles is one acute angle, and the side opposite to it. And what one needs to find is the side adjacent to this acute angle. Then, the function to use in both triangles, is the tangent:

a) For the  28^o [orange] triangle :

tan(28^o)=\frac{575}{y} \\y=\frac{575}{tan(28^o)} \\y=1081.42\,\,ft

b) For the 35^o [green] triangle:

tan(35^o)=\frac{575}{x} \\y=\frac{575}{tan(35^o)} \\y=821.19\,\,ft

Therefore the total distance between cars is:

1081.42 ft + 821.19 ft = 1902.61 ft

which to the nearest foot can be rounded as: 1903 ft

4 0
3 years ago
What is the value of the expression 5+(8+2)
Rom4ik [11]

Steps to solve:

5 + (8 + 2)

~Solve whats in parenthesis

5 + 10

~Add

15

Best of Luck!

7 0
3 years ago
What are 1<br> ways to make 98
Anna35 [415]
90 + 8 ? What are you asking? :)
7 0
3 years ago
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