Answer:
57.5 marbles rounding to 58 if you do not have partial marbles
Step-by-step explanation:
The number of marbles is equal to the percent of the marbles times the total number of marbles
23 = 40% total marbles
Change to decimal form
23 = .40 M
Divide by .40
23/.40 = .40M/.40
57.5 = M
This question is odd since you can't have part of a marble
I would round up and have 58 marbles
58 *.40 = 23.2 marbles
Answer:
10.92
Step-by-step explanation:
1. Find all side lengths of this tetrahedron.
A to B is 2 units
A to C is 2 units
A to D is 2 units
B to C is square root of 8
B to D is square root of 8
C to D is square root of 8
See 3D distance formula attached below to get the answers above.
2. Find the area of the triangles
Triangle ACD can be calculated using Heron’s formula, which is also attached below.
Area of Triangle ACD is 2 units squared.
Area of Triangle ABD is congruent to the previous one so it is also 2 units squared.
Area of Triangle CBD is roughly 3.46 units squared.
Area of Triangle ABC is congruent to Triangle CBD so it is also 3.46 units squared.
Adding them altogether is 2 + 2 + 3.46 + 3.46 = 10.92
Answer:
x
=-8.0287
I hope this helps! Add Brainliest
The answer is C. Hope this helps
Answer:
4
Step-by-step explanation: