Please help me on this math question pleasee

Answer:

18.9 years.

Step-by-step explanation:

We have been given that Felicia put $85 into a CD that pays 3.8% interest.

We know that rule of 72 gives us the time it will take an amount to be double, when we divide 72 by the interest rate.

Upon dividing 72 by 3.8 we will get,

[tex]\text{Time it will take to double Felicia's money}=\frac{72}{3.8}[/tex]

[tex]\text{Time it will take to double Felicia's money}=18.9473684\approx 18.9[/tex]

Therefore, it will take approximately 18.9 years for Felicia's money to double.

56 is 0.8 as a decimal fraction of 70.

A fraction represents a part of a whole.

We have to find Fifty six is what decimal part of 70

To find what fraction 56 is of 70,

We have to divide Fifty six by seventy

56 / 70 = 0.8

Therefore, 56 is 0.8 as a decimal fraction of 70.

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Answer:

The correct answer is 10.

Explanation:

I took the test and Aced it. Aka, got 100%

The answer top guy gave is incorrect.

Guarantee .

Hope this helps.

Answer:

[tex]\frac{5}{24}[/tex]

Step-by-step explanation:

Previous year table .

Food - [tex]\frac{1}{3}[/tex]

Housing - [tex]\frac{1}{3}[/tex]

Medical Care - [tex]\frac{1}{4}[/tex]

So, total =[tex]\frac{1}{3}+\frac{1}{3}+\frac{1}{4}[/tex]= [tex]\frac{11}{12}[/tex]

Since we are given that  the remaining portion of the budget will be for maintenance expenses.

So, maintenance expenses = [tex]1-\frac{11}{12}=\frac{1}{12[/tex]

Present year table

Food -[tex]\frac{1}{3}[/tex]

Housing -[tex]\frac{1}{8}[/tex]

Medical Care - [tex]\frac{1}{4}[/tex]

So, total =[tex]\frac{1}{3}+\frac{1}{8}+\frac{1}{4}=\frac{17}{24}[/tex]

Since we are given that  the remaining portion of the budget will be for maintenance expenses.[tex]1-\frac{17}{24}=\frac{7}{24}[/tex]

The difference between the fraction of the budget for maintenance this year and last year = 7/24 - 1/12 = 5/24

Hence the difference between the fraction of the budget for maintenance this year and last year is 5/24

Answer:

It will take 5 hours for Lola to travel from Paris to Nice.

Step-by-step explanation:

Lola takes the train from Paris to Nice. The distance between the two cities is about 900,000 meters.

We will convert this to km.

1000 meter = 1 km

900000 meter = [tex]\frac{900000}{1000}[/tex] = 900 km

The train travels at a speed of 180 kilometers per hour, so time taken to travel from Paris to Nice will be = [tex]\frac{900}{180} =5[/tex] hours

Hence, it will take 5 hours for Lola to travel from Paris to Nice.

Given is the shape of a rectangular prism. All the parallel edges are diagonally opposite to each other, it means that parallel edges directly face opposite to each other and they do not have any common vertex. So we have two sets of parallel edges that are {AB, CD, EF, and GH} and {AD, BC, EH, and FG}.

It says to select all edges from the given options that are parallel to AD.

Given options are :- 1. DH, 2. BC, 3. EF, 4. FG.

We have AD ║ BC ║ EH ║ FG.

Hence, only BC and FG are the final answers.

Answer:

Step-by-step explanation:

Hello!

A cylinder has a radius of 14m and a height of 6m what is the exact volume of this cylinder

Data:

r (radius) = 14 m

h (height) = 6 m

v (volume) = ?  

Formula:

[tex]V = \pi *r^2*h[/tex]

Solving:

[tex]V = \pi *r^2*h[/tex]

[tex]V = \pi *14^2*6[/tex]

[tex]V = \pi *196*6[/tex]

[tex]\boxed{\boxed{V = 1176 \pi\:m^3}}\end{array}}\qquad\quad\checkmark[/tex]

if, we adopt:  π= 3.14, so:

[tex]V = 1176*\pi \to V = 1176*3.14 \to \boxed{\boxed{V \approx 3692.64\:m^3}}\qquad\quad\checkmark[/tex]

________________________

I Hope this helps, greetings ... Dexteright02! =)

The mean of the given set of numbers is approximately 40.07, determined by summing all the numbers in the set and then dividing by the count of numbers in the set.

The question asks for the mean of a set of numbers. The mean is found by adding all the numbers in a set and then dividing by the total number of values in the set. To find the mean for the given data set (99, 78, 56, 11, 43, 22, 16, 31, 49, 28, 37, 29, 38, 34), we first add all the numbers:

99 + 78 + 56 + 11 + 43 + 22 + 16 + 31 + 49 + 28 + 37 + 29 + 38 + 34 = 561.

Next, we divide by the number of values, which is 14:

Mean = 561 ÷ 14 = 40.07. Therefore, the mean of the data set is approximately 40.07.

Final answer:

The average rate of change of the function f(x) from x = -3 to x = 1 is -0.625, calculated using the values of f(-3) and f(1) in the average rate of change formula.

Explanation:

The average rate of change of a function f(x) from x = a to x = b is computed by finding the difference in function values at these points and dividing by the difference in x values, following the formula (f(b) - f(a)) / (b - a). To apply this to the quadratic function [tex]f(x) = -1/2(x + 2)^2 + 5[/tex] from x = -3 to x = 1, we evaluate f at both -3 and 1 and use these results in our formula.

First, find f(-3):
[tex]f(-3) = -1/2(-3 + 2)^2 + 5 = 4[/tex]

Then, find f(1):
[tex]f(1) = -1/2(1 + 2)^2 + 5 = 1.5[/tex]

Now, we calculate the average rate of change:
(f(1) - f(-3)) / (1 - (-3)) = (1.5 - 4) / (1 - (-3)) = -2.5 / 4 = -0.625

Therefore, the average rate of change of the function f(x) from x = -3 to x = 1 is -0.625.

Answer:

No, it is not a valid inference because his classmates do not make up a random sample of the students in the school.

Step-by-step explanation:

Answer:

Point E on the number line represents the approximate volume of a cylinder with a radius of 4 units and height of 4 units.

Step-by-step explanation:

It is given that the radius of the cylinder is 4 units and the height of the cylinder is 4 units.

The volume of the cylinder is

[tex]V=\pi r^2h[/tex]

Where, r is radius and h is height of the cylinder.

Substitute r=4, h=4, π=3.14 in the above formula.

[tex]V=(3.14)\times (4)^2\times (4)[/tex]

[tex]V=200.96[/tex]

The volume of  the cylinder is 200.96. Therefore, point E on the number line represents the approximate volume of a cylinder with a radius of 4 units and height of 4 units.

Answer:

The Answer is E

Step-by-step explanation:

I got it right on the test

We are given a parallelogram with sides:

3 1/8 and 2 3/16.

Let us convert each into improper fraction.

3 1/8 = 25/8

2 3/16 = 35/16

Now perimeter of parallelogram is given by:

[tex] P = 2(sum of non parallel sides) [/tex]

[tex] P= 2(\frac{25}{8} + \frac{35}{16}) [/tex]

Now we have to find lcd of 8 and 16.

lcd of 8 and 16 is 16.

[tex] P= 2(\frac{25*2}{8*2} + \frac{35}{16} ) [/tex]

[tex] P=2( \frac{50}{16} + \frac{35}{16} ) [/tex]

[tex] P= 2(\frac{50+35}{16} ) [/tex]

Perimeter = 85/8 km

Answer : Perimeter of parallelogram is given by 85/8 km.

it's C, [tex]\sqrt{16,200}[/tex]

Final answer:

The distance a player has to throw the ball from first base to third base is the length of the diagonal of the square field. Using the Pythagorean theorem, this distance is found to be approximately 127.28 feet.

Explanation:

If the baseball field is a square, then when a player throws the ball from first base to third base, the player is throwing the ball along the diagonal of the square. To calculate the distance of the throw, which is the length of the diagonal, we can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b).

Since the bases form a square, both sides a and b are equal in length.

The formula we use is c = √(a² + b²), where 'c' would be the diagonal distance. If we assume the side of the square (the distance from home plate to first base, or from first base to second base, and so forth) is 90 feet, which is a standard distance in a baseball diamond, then we can plug 90 feet in for both 'a' and 'b' to calculate the diagonal:

c = √(90² + 90²)
= √(8100 + 8100)
= √(16200)
= 127.28 feet (approximately).

Therefore, the distance the player has to throw from first base to third base is about 127.28 feet.

To find the probability that 20 or more out of 50 babies are female, use a binomial distribution with parameters n=50 and p=0.5. Calculate the cumulative probability for P(X ≥ 20). Based on a potential sample output, the probability rounded to the nearest percent is 95%.

Finding the Probability Using Binomial Distribution

The question is about finding the probability that 20 or more out of 50 babies born today are female, given that 50% of babies are born female. This scenario can be modeled using a binomial distribution.

In a binomial distribution, n represents the number of trials (in this case, 50 babies), and p represents the probability of success on a single trial (in this case, the probability of a baby being female, which is 0.5). The binomial distribution formula is:

P(X = k) = (nCk) * (p^k) * ((1-p)^(n-k))

Where nCk represents the combination of n items taken k at a time.

To find the probability that 20 or more out of 50 babies are female, we need to calculate the cumulative probability from 20 to 50:

After calculating or using a binomial table, you might get a result. For example, suppose the cumulative probability is found to be 0.9523. Rounded to the nearest percent, the probability is 95%.

Answer:

115

Step-by-step explanation:

i did the test