The estimate obtained from a sample of which size is likely to be closest to the actual parameter value of a population?

Answer:

51.5 thermes of gas were used

Answer:

[tex]5\frac{1}{8}[/tex]

Step-by-step explanation:

5 3/4 = 23/4

(23/4)2 = 46/8

46/8 - 5/8 = 41/8 = 5 1/8

awnser im believe it is 24 i think

Answer:

20 units square

Step-by-step explanation:

do the Pythagoras theorem

a²=b²+c² ⇒ a=√b²+c²

if b is 4 and c is 2 an a is the unknown

so a=√(4)²+(2)²

a=√20

then get the rule of the area of the square

Area of the square= s²

s=a=√20 (a is the hypotenuse of the triangle and also a side in the square)

so s²=20

Area of the square=20 units square

Answer:

1/4th Cup left

Step-by-step explanation:

1/2 cup is equal to 2/4 cup, so subtract that from 3/4th and you end with 1/4th

Answer:

6

Step-by-step explanation:

Answer:

Im pretty sure the the product will be less than 2 7/8.

I think the answer will be 23/72

Answer:

The time it takes to boil 2.2 litres of water is approximately 141 seconds

Step-by-step explanation:

The given parameters are;

The relationship of the variables, T and A is a proportional, therefore, we have;

T ∝ A, or T/A = k = Constant of proportionality

The time it takes to boil 2.8 liters of water = 180 seconds

∴ When A = 2.8 litres, T = 180 seconds, from which we have;

k = T/A = 180 s/(2.8 L) = 450/7 s/L

k = 450/7 s/L

When A = 2.2 litres, we have;

T/A = k

∴ T = k × A

Plugging in the value for both 'k', and 'A' when A = 2.2 litres, gives;

T = k × A = 450/7 s/L × 2.2 L = 990/7 s = 141.[tex]\overline{428571}[/tex] s

The time it takes to boil 2.2 litres of water, given a direct proportionality relation is, T = 141.[tex]\overline{428571}[/tex] seconds ≈ 141 seconds given to the nearest second.

Answer:

1st time: 50% chance or 8/16 chance

2nd time: 46% chance or 7/15

I can try again if its wrong

Answer:

7/30

Step-by-step explanation:

8/16 that she picks a red cube.

7/15 that she picks another red cube after keeping the first red cube.

multiply 8/16 (1/2) times 7/15 to get 7/30 as your final answer

Answer:

396

Step-by-step explanation:

5280/40 =132

132x3 =396

Answer:

20

Step-by-step explanation:

Answer:

Step-by-step explanation:

(3*5) 15+(4*5) 20

20+15= 35-15= 20

Your answer is 20 I believe.

Answer:

angle B is congruent to angle H

Step-by-step explanation:

This is the formation needed to prove angle angle side.

Answer:

13 1/3 pounds

Step-by-step explanation:

Hi! Each bad weighs 2 2/3 pounds. There were 5 bags bought so we multiply. Here is the expression:

2 2/3 x 5 = x

Now we need to convert 2 2/3 into an improper fraction, which is 8/3.

Easy! Now

8          5         40

-      x    -     =    -

3           1          3

*I tried to set it up like fractions.*

Simplify 40/3 and you get 13 1/3

Answer:

223

Step-by-step explanation:

368 divided by 3= 123

123+100= 223

Answer:

Step-by-step explanation:

Yes

Answer:

-2/3 gallon/minute

Step-by-step explanation:

In three minutes the water volume has decreased by 2 gallons (7 less 5 is 2).  The unit rate of decrease of the amount of water in the tank is thus:

- 2 gallons

------------------- = -2/3 gallon/minute

 3 minutes

Answer:

The box would be 14

Step-by-step explanation:

It would be 14 because 7/14 is equal to 1/2. And 2/4 is also equal to 1/2.

Answer:

7/14

Step-by-step explanation:

Have a nice day.....

Answer:

36 pounds granola in a year

Step-by-step explanation:

Well there are 12 months a year.

She eats 48 ounce every month.

48 ounce = 3 pounds

3 pounds * 12 months = 36 pounds a year

//she sure does like granola o.o

Answer:

96.14

Step-by-step explanation:

2.53*38=96.14

Answer:

Its below in the explanation

Step-by-step explanation:

2^2 = 4 so y=4 and x,y = 2,4

3^2 = 9 and x,y = 3,9

4^2=16 and x,y=4,16

Please give me brainliest

Answer:

2^2 = 4 so y=4 and x,y = 2,4

3^2 = 9 and x,y = 3,9

4^2=16 and x,y=4,16

Step-by-step explanation:

Explanation:

We would use AA similarity criterion here because we can see two of the angles in each triangle are equal.

Answer:

the answer is d

Step-by-step explanation:

Answer: 1 and 5/8

Step-by-step explanation:

Answer:

R = 18.5

Step-by-step explanation:

Answer: 18.5

Step-by-step explanation: Divide 74 by 4

Answer: x = 5

Step-by-step explanation:

The area of a rectangle is the length times the width. Since the dimensions are given as functions of x, youre going to have to use FOIL to combine them, then set that answer equal to the given value of 72.

l*w = (x+3)*(x+4) = x^2 + 7x +12 = 72

Subtract 72 on both sides. There is a reason why we'll do this instead of subtracting 12. The quadratic formula will help us to solve for x.

x^2 + 7x - 60 = 0

Apply the quadratic formula

[tex]\frac{-7 (+/-)\sqrt{7^2-(4)*(1)*(-60} }{2*1} =\frac{-7(+/-)17}{2}[/tex]

We cant have a negative x value because that would result in negative dimensions and a negative area, which is impossible in this context. So you want to add the 17 instead of subtracting it.

x = 5 and x = -12

An alternate way is just factoring the trinomial to:

(x+12)(x-5) = 0

Answer:

area of big rectangle=l×b=12×18=216cm²

area of smaller square=l²=8²=64cm²

area of shaded area =area of (bigger rectangle-smaller square)=216-64=152cm²

Answer:

MILKY WAYS

Step-by-step explanation:

Answer:

Milky Way's are the best buy.

Step-by-step explanation:

Milky Way's Cost $8 a pound.

Snickers cost $9.50 a pound.

M&M's cost over $10 a pound.

Step-by-step explanation:

x^2+(x+9)^2=90

x^2+(x+9)^2-90=0

x^2+x^2+9^2+2*x*9-90=0

x^2+x^2+81+18x-90=0

2x^2+18x-9=0