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Sphinxa [80]
3 years ago
13

Missing addend for 389+_=489

Mathematics
2 answers:
Harrizon [31]3 years ago
5 0
Just do 489 - 389 and you will get 100

I hope this helps!

Plz put brainliest plz
astra-53 [7]3 years ago
3 0
Just put 489 - 389 = 100


so your answer is 100
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Answer for when sam goes to a restaurant, he always tips the server $2 plus 10% of the cost of the meal. if sam's distribution o
STatiana [176]
Given that S<span>am's distribution of meal costs has a mean of $9 and a standard deviation of $3, this means that the range of Sam's meal cost that are within one standard deviation is given by ($9 - 3, $9 + 3) = ($6, $12).

Given that Sam </span><span>always tips the server $2 plus 10% of the cost of the meal, this means that when the cost of the meal is $9, Sam tips $2 + (0.1 x 9) = $2 + $0.9 = $2.90

Therefore, the mean of the distribution of Sam's tips is $2.90

Similarly, the </span><span>range of Sam's tips that are within one standard deviation is given by ($2 + 0.1(6), $2 + 0.1(12)) = ($2 + 0.6, $2 + 1.2) = ($2.6, 3.2) = ($2.9 - $0.3, $2.9 + $0.3)

Therefore, </span><span>the standard deviation of the distribution of Sam's tips is $0.3</span>
8 0
3 years ago
a watermelon is thrown down from the 7th floor of urey hall at ucsd. if the initial height of the watermelon is 21.0 meters, and
Marysya12 [62]

Answer:

The watermelon has fallen 15.53625m

Step-by-step explanation:

x=vi*t+.5*a*t^2

x=3*1.5+.5*9.81*1.5^2

x=15.53625m

7 0
3 years ago
Read 2 more answers
First, rewrite 1/10 and 3/25 so they have a common denominator
AlladinOne [14]

Answer:

Below,...

Step-by-step explanation:

1/10 = 25/250

3/25 = 30/250

25/250 and 30/250

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8 0
3 years ago
#2 A triangle has a height three times its base. The area of a triangle is 73.5
cestrela7 [59]

Answer: See explanation

Step-by-step explanation:

Let the base be represented by x.

Therefore, the height will be = 3 × x = 3x

Since Area of a triangle = 1/2 × base × height

1/2 × x × 3x = 73.5

3x²/2 = 73.5

3x² = 73.5 × 2

3x² = 147

x² = 147/3

x² = 49

x = ✓49

x = 7

Base = 7cm

Height = 3 × 7 = 21cm

6 0
3 years ago
What is the value of x?
svlad2 [7]
I believe x = 32 because it is an equalateral triangle meaning each angle is 60 degrees so the equasion is 2x-4=60.
5 0
3 years ago
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