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2 years ago

5

PLS HELP!!! there are 72 students in a speech contest. yesterday, 1/3 of them gave their speeches. today, 5/6 of the remaining s

tudents gave their speeches. How many students still haven't given their speeches?

2 answers:

Lubov Fominskaja [6]2 years ago

6 0

Answer:

above is the answer to the question

poizon [28]2 years ago

4 0

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If 1/2 gallon of paint cover 1/4 of a wall then how much paint is needed to cover an entire wall?

slavikrds [6]

paint is needed to cover an entire wall : 2

if 1/2 gallon of paint cover 1/4 of a wall => 1 wall = (1/2)/(1/4) =2

4 0

3 years ago

Read 2 more answers

1. The coefficient in the term 7xy is (a) 7 (b) 3 (c) 1 (d) 2

max2010maxim [7]

Answer:

1. 7

2.-5

4.20

5.1

6.1

7./8.2 variables

9.3variables

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11.0

12. 1

13. 2

14. 3

15. 5

16. -5

17. 3

18.

19 .28p

hope this helps u

Step-by-step explanation:

I am unable to answer some questions

6 0

3 years ago

xz_007 [3.2K]

Answer:

$Center = \boxed{1}, \: \boxed{ - 2} \: ; \: Radius = \boxed{3}$

Step-by-step explanation:

${x}^{2} + {y}^{2} - 2x + 4y - 4 = 0 \\ \\ ({x}^{2} - 2x + 1 - 1) + ( {y}^{2} + 4y + 4 - 4) - 4 = 0 \\ \\ ( {x}^{2} - 2x + 1) + ( {y}^{2} + 4y + 4) - 9 = 0 \\ \\ {(x - 1)}^{2} + {(y + 2)}^{2} = 9 \\ \\ {(x - 1)}^{2} + {(y + 2)}^{2} = {3}^{2} \\ \\ equating \: it \: with \\ \\ {(x - h)}^{2} + {(y - k)}^{2} = {r}^{2} \\ \\ h = 1 \\ k = - 2 \\ r = 3 \\ \\ center = \boxed{1} \: \boxed{ - 2} \: \: radius = \boxed{3}$

3 0

3 years ago

Luke has 48 books.He puts 7 books in a box.How many boxes can he fill?explain how you interpreted the remainder

Alex17521 [72]

48 books divided by 7 books per box. So since 7 can go into 48 6 times to make 42, the remainder is 6 books are left out. 6 boxes are filled. I interpreted the remainder by subtracting 42 from 48. And that's all I did. :)

I hope you like this answer and have a good night! :D

3 0

3 years ago

Read 2 more answers

Select the correct answer. For what value of x is sin x = cos 19º, where 0°< x < 90°? OA. 38° ° O B. 71° OC. 26° O D. 19°

Lerok [7]

Answer:

x = 71°

Option B is correct answer.

Step-by-step explanation:

We need to find for what value of x is $sin\: x = cos 19^{\circ}$ , where 0°< x < 90°?

Solving:

$sin\: x = cos\: 19^{\circ}\\Finding \:cos\: 19^{\circ}=0.94551\\Putting\:value:\\sin\:x=0.94551\\Now\:taking\:sin\:inverse\\x=sin^{-1}(0.94551)\\x=71^{\circ}$

So, we get x = 71°

Option B is correct answer.

5 0

2 years ago