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kenny6666 [7]
3 years ago
6

. According to a recent report, people smile an average of µ = 62 times per day. Assuming that the distribution of smiles is app

roximately normal with a standard deviation of σ = 18, find each of the following values: a. What proportion of people smile more than 80 times a day
Mathematics
1 answer:
Leokris [45]3 years ago
6 0
Idk my horse face sorry dear
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Could you guys simplify this for me please.. i’m not that good at math so I might as a few more
Nataly [62]

Answer:

B

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Given: LN⊥KM,KL≅ML Prove: ΔKLN≅ΔMLN
miss Akunina [59]

Answer:

The Proof is given below.

Step-by-step explanation:

Given:

LN⊥KM,

KL≅ML

To Prove:

ΔKLN≅ΔMLN

Proof:

In  Δ KLN and Δ MLN

KL ≅ ML     ....……….{Given i.e Hypotenuse }

LN ≅ LN     …………..{Reflexive Property}

∠ LNK ≅ ∠ LNM  ……….{ LN ⊥ KM i.e Measure of each angle is 90° given}

Δ KLN ≅ Δ MLN     ….{By Hypotenuse Leg Theorem} ....Proved

6 0
2 years ago
What is the rate of change for 2y+3=3x
Elenna [48]
The rate of change in z at (4,9) as we change x but hold y fixed is = 3/[2sqrt(3x+2y)] put x = 4 , y = 9 = 3/[2sqrt(12+18) = 3/[2sqrt(30)] The rate of change in z at (4,9) as we change y but hold x fixed is = 1/sqrt(3x+2y) put x = 4, y =9 = 1/sqrt(30)
5 0
3 years ago
Use the zero product property to find the solutions to the equation x2 + x - 30 = 12
ycow [4]
Answer is x=-7 x=6 or choice A
4 0
2 years ago
Convert 120 Ibs to kilograms
posledela

Answer:

54.431 kilograms

Step-by-step explanation:

don't have step by step but 1kg is 2.205lbs

7 0
2 years ago
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