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brilliants [131]

3 years ago

14

if a rifleman averages 8 hits out of 10 shots at a target, what is the probability that he will hit the target in 3 out of 4 sho

ts

1 answer:

ivann1987 [24]3 years ago

3 0

Use binomial distribution

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In what year was her grandpa lopez twice as old as her dad?show how you know

RoseWind [281]

So,

We are trying to figure out when Grandpa Lopez's age was twice that of Dad.

Let x represent the number of years before/after when G. Lopez's age was twice that of Dad.

66 + x = 2(37 + x)

Distribute.
66 + x = 74 + 2x

Subtract x from both sides.
66 = 74 + x

Subtract 74 from both sides.
-8 = x

So 8 years ago, G. Lopez was twice as old as Dad. Let's check that.

66 - 8 = 58

37 = 8 = 29

29 * 2 = 58
58 = 58

It checks.

8 0

3 years ago

Suppose that the population of a town Increases by 3% each year. the population of the town today is 25,000

jolli1 [7]

Answer:

The population of town after 1 year is 25,750 .

Step-by-step explanation:

Given as :

The rate of increase in the population of town each year = 3 %

The initial population of town = 25,000

Let the population of town after one year = x

So,

The population after n year = initial population × $(1+\dfrac{\textrm rate}{100})^{\textrm n}$

Or, The population after 1 year = 25,000 × $(1+\dfrac{\textrm 3}{100})^{\textrm 1}$

Or, The population after 1 year = 25,000 × $(1.03)^{1}$

Or, The population after 1 year = 25,000 × 1.03

∴ The population after 1 year = 25,750

Hence The population of town after 1 year is 25,750 . Answer

3 0

3 years ago

5pts and the person with the correct answer gets brainliest

WITCHER [35]

Answer:

(a) 5

(b) 3rd quartile

(c) 2nd quartile

Step-by-step explanation:

There are four quartiles in a box plot <em>(or box and whisker plot).</em>

The 1st is from 5 to 13

The 2nd is from 13 to 35

The 3rd is from 35 to 40

The 4th is from 40 to 48

<em />

(a) The lowest that this box plot goes is 5 <em>(between the 4 and 6)</em>

(b) 3rd quartile — we can see that the left and right borders are close together, meaning that the data values for this quartile are close together, and therefore concentrated

(c) 2nd quartile — we can see that this quartile is the widest, and therefore the data values are spread out

8 0

2 years ago

Please help ASAP!! I'm in. a google meet rn and need to prove I got this question right

Aleks04 [339]

Answer:

x = 5.4

Step-by-step explanation:

(This question has already been answered, but both of the incorrect ones were deleted, so for future reference...)

Fig A is a scale image of Fig D. These two quadrilaterals are similar, and thus, the side lengths of corresponding sides are proportional. Set the proportion x/3 = 7.2/4 (you could alternatively write it as x/7.2 = 3/4 but for the simplicity's sake, and assuming anyone who has this problem would already know how to solve proportions like these...)

7.2/4 = 1.8

so

x/3 = 1.8

now multiply both sides by 3 to get x = 5.4

4 0

3 years ago

Which ordered pair identifies a point in Quadrant IV? A) (2, 5) B) (0, 1) C) (-1, -1) D) (12, -5)

MariettaO [177]

Correct Answer:
Option D (12, -5)

In Quadrant IV, the x-component of the point is positive and the y-component is negative. From the given points, option D contains the point with a positive x-component i.e.12 and negative y-component i.e -5. Therefore, this point lies in Quadrant IV.

4 0

3 years ago