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tekilochka [14]
3 years ago
7

Can someone please help me and explain how to solve this question

Mathematics
1 answer:
Alex3 years ago
7 0
I see this triangle is isosceles.  Thus, it has 2 sides of length 8 and 2 angles of measure 30 degrees.

(30 deg) + (30 deg) + (angle A) MUST add up to 180 degrees.

Thus, 60 deg + Angle A = 180 deg, so that Angle A = (180 - 60) deg, or 120 deg (answer)
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The figure is made up of 2 cones and a cylinder. The cones and cylinder have a 4 cm diameter.
Ilya [14]

Answer:

62.84

Step-by-step explanation:

Volume of both cones is approximately 12.57

formula= pi*r^2*h/3

Volume of the cylinder is approximately 37.7

formula= pi*r^2*h

you add the volumes

12.57+12.57+37.7

= 62.84

8 0
4 years ago
Which of the following algebraic expressions can be used to express the statement "three less than z squared?"
Citrus2011 [14]
"<span>z˄2 − 3" because x squared is z^2, and 3 less of it would mean to subtract it from 3</span>
6 0
3 years ago
if the farm has 30 chickens and cows and there are 82 chickens and cow legs all together how many cows would the farm have?
Allushta [10]
11 cow and 19 chicken 11*4=44 19*2=38 38+44=82
3 0
3 years ago
Find dy/dx for (y^2/x) = 18 by implicit differentiation
Natasha2012 [34]

9514 1404 393

Answer:

  dy/dx = y/(2x)

Step-by-step explanation:

The product formula can be used, along with the power rule.

  d(uv) = du·v +u·dv

__

  d(y^2/x) = d(18)

  2y·dy/x -y^2/x^2·dx = 0

  2x·dy -y·dx = 0 . . . . . . . . multiply by x^2/y

  dy/dx = y/(2x) . . . . . . . . add y·dx, divide by 2x·dx

6 0
3 years ago
PLEASE HELP AND EXPLAIN SO I CAN LEARN. THANKS. Indicate whether each item described contains parallel lines or perpendicular li
AfilCa [17]

Answer:

Hey! I think I can help.

Parallel lines are lines that can't meet.Perpendicular lines are lines that can meet.

e.)Since the line at 12 and the line at 9 meets then it is a perpendicular line.

c.)Perpendicular line.

a.)Perpendicular line.

b.)Parallel line.

d.)Depending on how they are faced if the ends of the telephone wire meets the second one then it is perpendicular but if not then it is parallel that's if they are in different directions which they can not meet.Thank you for the question

5 0
3 years ago
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