Its typical because 60 between 100. 8 times 10 seconds equals 80 which is in between so Noah's heart rate is typical.
Answer: See below
Step-by-step explanation:
27. -(a-3)
28. (b-1)(b+3)
29. (c+4)(c+5)
30. d(d+5)
31. -(3/4)(2e-5)
Sorry - I don't have time to enter the details. Look for areas where the expressions can be factored in a manner that forms as many equivalent expressions in both the numerator and denominator.
For example: In problem 30:
(5d-20)/(d^2+d-20) * [??]/20d = 1/4
Factor:
<u>(5(d-4))</u> <u>d(d+5)</u> = 1/4
(d-4)(d+5<u>)</u> 20d
The (d-4), d+5, and d terms cancel, leaving
5/20 = 1/4
A right triangle has one 90°angle, and the sum of the 2 other angles equals 90.
an equilateral triangle has all sides and angles of the triangle congruent. each angle will equal 60°
an isosceles triangle has 2 congruent sides and 2 congruent angles.
a scalene triangle has no equal sides or equal angles.
an obtuse triangle has one angle that is greater than 90°
an acute triangle has all angles that are less than 90°
Hope this helps you classify your triangles!
B) 11 over 8 Hope that is helpful
The area is 13.
I think you were on the right track there. The area of the one on the bottom is 4*1, or 4. The area of the top upright rectangle is 9*1, or 9. 9+4=13.
