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fomenos
3 years ago
15

Exterior angles of triangles: help me find the value of x please

Mathematics
2 answers:
lara31 [8.8K]3 years ago
7 0

Answer:

12

Step-by-step explanation:

Tasya [4]3 years ago
3 0

your picture is not showing up for me

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Help me and please explain
k0ka [10]

Answer:

4 attendees

Step-by-step explanation:

we can create and equation (x is the amount of attendees) $8 per attendee at a total of $32 is 8x=32 which you divide on both sides getting x=4 or 4 attendees

4 0
3 years ago
If 28% of students in College are near-sighted, the probability that in a randomly chosen group of 20 College students, exactly
cluponka [151]

Answer: (D) 16%

Step-by-step explanation:

Binomial probability formula :-

P(x)=^nC_xp^x(1-p)^n-x, where n is the sample size , p is population proportion and P(x) is the probability of getting success in x trial.

Given : The proportion of students in College are near-sighted : p= 0.28

Sample size : n= 20

Then, the the probability that in a randomly chosen group of 20 College students, exactly 4 are near-sighted is given by :_

P(x=4)=^{20}C_4(0.28)^4(1-0.28)^{20-4}\\\\=\dfrac{20!}{4!16!}(0.28)^4(0.72)^{16}\\\\=0.155326604912\approx0.16\%

Hence, the probability that in a randomly chosen group of 20 College students, exactly 4 are near-sighted is closest to 16%.

7 0
3 years ago
Solve the system by substitution...
Nataly_w [17]

Answer: 14

Step-by-step :x +3 y = 15 , 2 x -y =14

but let me know if it's right ok

6 0
3 years ago
Marianne, Arlene, Tyler, and I worked together to complete a group project. Marianne completed 1/5 of the project. Arlene comple
Nookie1986 [14]
Marianne completed 2/10 and Arlene 3/10 so that’s 5/10 which means you and Tyler did 5/10 if you divide that by 2 it’s 5/20 I think but I don’t really understand as the possible answers aren’t fractions? Hopefully that’s right haha
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3 years ago
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