In a class of 39 students, there are 23 girls. All the students were asked if they did maths or physics and their reponse were;19 do maths, 16 do physics, 5 boys do maths and physics,9 girls do maths only,3 girls do maths and physics. Twice as many boys do not do maths or physics as girls:
1. illustrate this on a venn diagram
2.how many girls do physics?
3.how many students do maths or physics only

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

i can answer this question sweetie!

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0