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MAXImum [283]
3 years ago
12

Can someone help me with this please, I need to get this thing done?

Mathematics
1 answer:
amm18123 years ago
8 0

Answer:

The answer is B (9)

Step-by-step explanation:

Count the distance.

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Choose the expression for 9 decreased by 9
Makovka662 [10]

Answer:

Mathematically speaking, it is 9 - 9

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2 years ago
You tell your mom that you want ₹700₹700₹, 700 as pocket money every month. She can deposit some money in the bank such that the
Colt1911 [192]
Let me think? I’m not sure
6 0
3 years ago
Please help!!! 100 points if correct!!! please actually answer
rosijanka [135]

Answer:

see below

Step-by-step explanation:

What is the theoretical probability that the family has two dogs or two cats? (1/2)

The choices are dd, dc, cd, cc

There are 4 choices = dd or cc/ total = 2/4 = 1/2

Let the heads of the coin be dogs and the tails of a coin be cats

Flip two coins and coin A is the first pet and coin B is the second pet

heads , heads = 10

heads, tails  14

tails heads  =13

tails tails =  13

          total 50

Experimental probability  2 dogs or 2 cats = ( hh, tt) /total = ( 10+13) /50 =                    23/50

If we had 3 pets  

what is the theoretical probability that they have three dogs or three cats?

ddd, ddc, dcd, dcc, ccc, ccd ,cdc, cdd

There are 8 options

 ddd or ccc/ total = 2/8 = 1/4

Let the heads of the coin be dogs and the tails of a coin be cats

Flip three coins and coin A is the first pet and coin B is the second pet Coin C be the third pet

4 0
3 years ago
Which figure always has exactly four lines of reflection that map the figure onto itself?
Salsk061 [2.6K]

Answer:

number 3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A hair salon in Cambridge, Massachusetts, reports that on seven randomly selected weekdays, the number of customers who visited
morpeh [17]

Answer:

a: 28 < µ < 34

Step-by-step explanation:

We need the mean, var, and standard deviation for the data set.  See first attached photo for calculations for these...

We get a mean of 222/7 = 31.7143

and a sample standard deviation of: 4.3079

We can now construct our confidence interval.  See the second attached photo for the construction steps.

They want a 90% confidence interval.  Our sample size is 7, so since n < 30, we will use a t-score.  Look up the value under the 10% area in 2 tails column, and degree of freedom is 6 (degree of freedom is always 1 less than sample size for confidence intervals when n < 30)

The t-value is: 1.943

We rounded down to the nearest person in the interval because we don't want to over estimate.  It said 28.55, so more than 28 but not quite 29, so if we use 29 as the lower limit, we could over estimate.  It's better to use 28 and underestimate a little when considering customer flow.

5 0
3 years ago
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