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Ket [755]
3 years ago
8

How many different ways can a chairperson and an assistant chairperson be selected for a research project if there are 7 scienti

sts available? Which counting method do you use?
Mathematics
1 answer:
alukav5142 [94]3 years ago
3 0
7P2, so 42 ways - permutation method since the order of choosing matters (chair and vice chair)
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Only do question 4<br><br> 50 points<br><br> Topic: Percentage
Sergeu [11.5K]

Answer:

a 1

b 6

c 15

Step-by-step explanation:

101% 101/100 = 1 1/100

is 1  complete 100 grid and 1/100 of another grid so you will need 2 grids

589% 589/100 = 5 89/100

is 5 complete 100 grids and 89/100 of another grid so you will need 6 grids

1450% 1450/100 = 14 50/100

is 14 complete grids and 50/100 of another grid so you will need 15 grids

4 0
3 years ago
What is the slope of this graph?<br><br> −1/3<br><br> 3<br><br> 1/3<br><br> −3
FromTheMoon [43]
I'm assuming there is probably a graph that goes with this problem so here is all the info I can give you with the four choices: If it is -1/3, the line will go DOWN 1, over 3 (just count on the graph) If it is 3, the line will go UP 3, over 1 If it is 1/3, the line will go UP 1, over 3 And if it it -3, it will go DOWN 3, over 1 (If the slope is 3 or -3, it would be quite steep compared to a slope of 1/3 or -1/3) Hope that helps!
4 0
3 years ago
Solve for x , (2x-1)=5(x+1)<br><br>no links​
kobusy [5.1K]

Answer:

x = -2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is true of an equilateral triangle? Two of its side lengths are equal. All its side lengths are equal. None of its side len
KIM [24]

Answer:

<u><em>All its side lengths are equal </em></u>

<u><em></em></u>

<u><em></em></u>

<u><em>(and all the agle of 60°)</em></u>

<u><em></em></u>

<u><em></em></u>

Step-by-step explanation:

What is true of an equilateral triangle? Two of its side lengths are equal. <u><em>All its side lengths are equal</em></u>. None of its side lengths are equal. None of its interior angles are equal. What is true of an equilateral triangle ? Two of its side lengths are equal . All its side lengths are equal . None of its side lengths are equal . None of its interior angles are equal .​

4 0
2 years ago
In circle F with m∠EFG=54m∠EFG=54 and EF=19
elena-14-01-66 [18.8K]

Answer:

17.907082 unit

Step-by-step explanation:

According to the Question,

Given, A circle with centre F, ∠EFG=54 and EF=19 .

length of arc EG = Radius(EF) × ∠EFG(in Radian)

  • We Know, 1 degree = 0.0174533 Radian
  • 54 degree = 0.942478 Radian

length of arc EG = 19 x 0.942478 ⇔ 17.907082 unit

(For Diagram please find in attachment)

3 0
3 years ago
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