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3 years ago

Find the distance between the pair of points (-4,-5) and ( -5.-9)

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

4 0

Answer:

the first one is 1 the second is 4

Step-by-step explanation:

these could be negatives

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The mean amount spent by a family of four on food per month is $500 with a standard deviation of $75. Assuming that the food cos

JulijaS [17]

Answer:

The probability that a family spends less than $410 per month

P( X < 410) = 0.1151

Step-by-step explanation:

Step(i):-

Given mean of the population = 500

Given standard deviation of the Population = 75

Let 'X' be the variable in normal distribution

$Z = \frac{x-mean}{S.D}$

Given X = $410

$Z = \frac{410-500}{75} = - 1.2$

Step(ii):-

The probability that a family spends less than $410 per month

P( X < 410) = P( Z < - 1.2 )

= 0.5 - A( -1.2)

= 0.5 - A(1.2)

= 0.5 - 0.3849 ( ∵from normal table)

= 0.1151

Final answer:-

The probability that a family spends less than $410 per month

P( X < 410) = 0.1151

6 0

3 years ago

16/___ = -8 I will mark brainlyst for the first person!

Paraphin [41]

$\frac{16}{ - 2} = - 8$

3 0

3 years ago

Read 2 more answers

can yall pls help me with this, it isn't that hard but i need to know how to solve it in steps and in how to narrow it down, ty.

marin [14]

Answer:

$\frac{times}{days}$ = $\frac{20}{5}$ = $\frac{m}{30}$

you need to be consistant when setting up the proportions. The times always need to be on top and the days needs to always on bottom.

Cross multiply and solve for the variable.

20(30) = 5(m)

600 = 5m

120 = m

So, in 30 days the theatre showed 120 movies.

4 0

3 years ago

Read 2 more answers

Anthony deposits $20 every month in his bank account.He already had $400 dollars in the begining of the month.In how many months

Airida [17]

Answer:

Step-by-step explanation:

Take 400 and divide it by 20

3 0

3 years ago

Read 2 more answers

Am I correct?? HELP!!

lesya [120]

8 would be B.
The ratio is 1:5, so the answer has to be a division of 5.
15*5 does not equal 90, but 18 does.

9 is correct.

7 0

4 years ago