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Liono4ka [1.6K]
3 years ago
13

Jordin went shopping for strawberries at a organic foods store. He saw that 12 out of 13 strawberries were about the size of his

fist. He concluded that about 92% of strawberries are about the size of his wrist. Is his inference valid? Explain.
Mathematics
1 answer:
ivann1987 [24]3 years ago
8 0

Answer:

His inference is valid.

Step-by-step explanation:

The actual percentage of 12/13 is 92.31%, which rounds to 92%.

Hope this helps!

You might be interested in
. All the students in SS3 of a named school take either Mathematics (M), or Physics (P) or Chemistry (C). 40 take Mathematics, 4
aivan3 [116]

Answer:

(a) = 13

(b) = 8

(c) = 5

Step-by-step explanation:

Addition theorems on sets are

Theorem 1 :

n(AuB) = n(A) + n(B) - n(AnB)

Theorem 2 :

n(AuBuC) : = n(A) + n(B) + n(C) - n(AnB) - n(BnC) - n(AnC) + n(AnBnC)

Total number of students in the school is not given

so let there are 60 students in the school

using theorem 2

n(AuBuC) : = n(A) + n(B) + n(C) - n(AnB) - n(BnC) - n(AnC) + n(AnBnC)

let n(A) = Mathematics, n(B) =Physics and n(C) = Chemistry

so putting values,

   60             =    40 + 42 + 38 - 20 - 28 - 25 + n(AnBnC)

60 +73 -120 = n(AnBnC)

         13         = n(AnBnC)

therefore, there are total 13 students who take all three subjects

Number of students who had taken only Mathematics  =
n(A) - n(AnB) - n(AnC) + n(AnBnC)

40 - 20 - 25 + 13

53 - 45 = 8 students

Number of students who had taken only Physics  =

n(B) - n(BnA) - n(BnC) + n(AnBnC)

42 - 20 - 28 + 13

53 - 48 = 5 students

learn more about sets and vein diagrams at

brainly.com/question/2332158

#SPJ10

4 0
2 years ago
I really need help with this pls
balandron [24]
36 because 6 to the second power is 36
5 0
2 years ago
Read 2 more answers
The function f(t) = 7 cos(pi over 4t) + 12 represents the tide in Light Sea. It has a maximum of 19 feet when time (t) is 0 and
lord [1]

The function f(t) = 7 cos(pi over 4t) + 12 represents the tide in Light Sea. It has a maximum of 19 feet when time (t) is 0 and a minimum of 5 feet. The sea repeats this cycle every 8 hours

To find the height of the tide after 2 hours, we plug in 2 for t  and find out f(2)

f(t) = 7 cos(\frac{\pi}{4})t+ 12

f(2) = 7 cos(\frac{\pi}{4})*2+ 12

f(2) = 7 cos(\frac{\pi}{2})+ 12

We know that cos (pi/2) is 0

f(2) = 7 (0)+ 12

So f(2)= 12

After two hours, the height of the tide is 12 feet



7 0
3 years ago
Determine whether the function is linear or quadratic.
Leona [35]

Answer:

it's a linear

since when you expand the equation (x+1)(8x-8) the x is equal to zero which is left for y to be the subject

8x²-24= y

4 0
3 years ago
A solid plastic ball is a sphere with radius 11 in. How much plastic does it take to make one ball? Use 3.14 for pi.
Goshia [24]
Don’t lesson to that link guy it’s virus robot
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