In a class of students, the following data table summarizes the gender of the students and whether they have an A in the class. What is the probability that a student who has an A is a female?
Female Male
Has an A 2 6
Does not have an A 11 5

Answer:

$9.76

Step-by-step explanation:

20% is 1/5 of the bill. The answer is 48.53 +( 48.53*1/5) which is 9.76 so the $9.76

Plz mark brainliest if correct!

Hope this helps

Answer:

Step-by-step explanation: well you can just plug it into a calculator.

the answer is 9.706 or 9.7 if you simplify it  and if you are rounding to the nearest tenth then its 10.

hope this helps!

you wrote ehte question wrong

Answer:

10

Step-by-step explanation:

Answer:

I think it’s 10:)

Step-by-step explanation:

Answer:

The answer is y = -1/3x + 5 !

Step-by-step explanation:

If you observe the line, the y-intercept is 5, from the point in the graph (0,5). From that point, we can see that the rise over run is -1/3. Thus, y = -1/3x + 5.

Answer:

the last one is 128.9

Answer:

C

Step-by-step explanation:

[tex]f'(x)=g(x) * (x^2-4)\\0=g(x)*(x^2-4)\\x={-2,2}\\f(-4) = -\\f(-2) = 0 \\f(0) = +\\f(2) = 0 \\f(4)= -\\\\[/tex]

It decreases from negative infinity to -2, then increases, so x=-2 is a rel. min.

It increases from x=-2 to x=2, then decreases to infinity, so x=2 is a rel. max.

Answer:

$5487.38

Step-by-step explanation:

Given that:

Interest currently made = $2112.64

Time = 7 years

Rate of interest = 5.5% annual

To find:

The price for which the bond was originally bought ?

Solution:

We need to find nothing but the principal amount.

First of all, let us have a look at the formula for Simple Interest.

[tex]Simple\ Interest = \dfrac{PRT}{100}[/tex]

Where [tex]P[/tex] is the principal amount

[tex]R[/tex] is the Rate of Interest

[tex]T[/tex] is the time for which the investment is made

Let us put the given values in the formula:

[tex]2112.64 = \dfrac{P\times 5.5\times 7}{100}\\\Rightarrow P =\dfrac{2112.64\times 100}{5.5\times 7}\\\Rightarrow P =\dfrac{211264}{38.5} \\\Rightarrow \bold{P =\$5487.38}[/tex]

Answer:

6, 12, 18, 24, 30, 36. 42, 46, 52, 58, 64,

7, 14, 21, 29, 36

Your answer is 36.

Step-by-step explanation:

LCM means the multiple which the two numbers share with the least value. So, I just found the multiples of each number until I found the one which was common. If you would like me to explain this in more depth, tell me! I'd be glad to help.

Answer:

[tex]A^{-1} = \frac{1}{66} \left[\begin{array}{cc}-2&-5\\6&-18\end{array}\right][/tex]

Step-by-step explanation:

Given

[tex]A = \left[\begin{array}{cc}-18&5\\-6&-2\end{array}\right][/tex]

Required

Determine the inverse

A matric is of the form:

[tex]A = \left[\begin{array}{cc}a&b\\c&d\end{array}\right][/tex]

First, we need to calculate the determinant (D)

[tex]D = a * d - b * c[/tex]

By comparison, we have:

[tex]D = (-18 * -2) - (5 * -6)[/tex]

[tex]D = (36) - (-30)[/tex]

[tex]D = 36 +30[/tex]

[tex]D = 66[/tex]

The inverse is then represented as:

[tex]A^{-1} = \frac{1}{D} \left[\begin{array}{cc}d&-b\\-c&a\end{array}\right][/tex]

This gives:

[tex]A^{-1} = \frac{1}{66} \left[\begin{array}{cc}-2&-5\\6&-18\end{array}\right][/tex]

I would say none

because each one equals to 24 students, when it says there are 24 students in each are class. so you would need to do 24 * 5 to get the amount of students.

Answer:

The second answer choice

Step-by-step explanation:

if you divided the total amount of people in all of the art classes by 5 you would get 24. Or you could think of it as multiplying by 5 on both sides which would give you "s" because it cancels out on the left side.

Answer:

A, C, D and E

Step-by-step explanation:

Hope it helps :D

Answer:

A,C,D and E

Step-by-step explanation:

Answer:

first answer is 9.84

Step-by-step explanation:

9.84 is the square root of 97, rounded to the nearest hundredth.

the legs measure 9 x 9 and 4 x 4 = 81 and 16.

81 + 16 = 97, so your answer is the square root of 27, which rounded to the nearest hundredth, equals 9.84. Rounding towards the nearest whole, 10 would be your best bet.

hope this helps!!

Answer: b. Yes

Step-by-step explanation: Confidence Interval for a population proportion is calculated as:

p ± [tex]z\sqrt{\frac{p(1-p)}{n} }[/tex]

where

p is the sample proportion

n is sample size

z is z-score, in this case, as it is 95%, z-score=1.96

Calculating confidence interval:

[tex]p=\frac{152}{468}[/tex]

p = 0.3248

0.3248 ± [tex]1.96\sqrt{\frac{0.3248(0.6752)}{468} }[/tex]

0.3248 ± [tex]1.96\sqrt{0.000468}[/tex]

0.3248 ± 0.0425

Interval: 0.2823 < μ < 0.3673

The interval means we are 95% sure the true mean is between 0.2823 and 0.3673. As the campaign claims a proportion of no more than 0.32 of the voters wants to see Mayor Waffleskate defeated and the number is in the confidence interval, the claim is supported.

Answer:

Step-by-step explanation:

The set up will give a right angled triangle

Given

Distance of point A from the flagpole = 25feet

If angle of elevation is 30°

Required

Height of flagpole (opposite)

Using TOA

tan theta = opp/adj

tan30° = opp/25

opp = 25tan30°

opp = 14.4feet

Hence the height of flagpole when the angle of elevation is 30° is 14.4feet

If angle of elevation is 38°

Required

Height of flagpole (opposite)

Using TOA

tan theta = opp/adj

tan38° = opp/25

opp = 25tan38°

opp = 19.53feet

Hence the height of flagpole when the angle of elevation is 38° is 19.5feet

If angle of elevation is 45°

Required

Height of flagpole (opposite)

Using TOA

tan theta = opp/adj

tan45° = opp/25

opp = 25tan45°

opp = 25feet

Hence the height of flagpole when the angle of elevation is 45° is 25feet

Answer: g<22.5

Step-by-step explanation:

Isolate the variable by dividing each side by the factor that don’t contain the variable.

Answer:

D. 3(x+2) can be rewritten as 3x + 6 using the distributive property

Step-by-step explanation:

Given

[tex]3(x + 2) = 3x + 6[/tex]

Required

Explain

From the list of given options, option D answers the question.

This is because, the expression above involves distributive property and only option D correctly states that.

A distributive property is:

[tex]a*(b + c) = a*b + a * c[/tex]

In this case:

[tex]a = 3[/tex]  [tex]b = x[/tex]   and [tex]c = 2[/tex]

So:

[tex]a*(b + c) = a*b + a * c[/tex]

Substitute values for a, b and c

[tex]3*(x + 2) = 3 * x + 3 * 2[/tex]

[tex]3(x + 2) = 3x + 6[/tex]

Answer:

C. Both expressions involve addition.

Step-by-step explanation:

I tried it, and it was correct

Answer:

400 liters of orange punch and 100 liters of mango punch are required to create a mixture with 40% juice.

Step-by-step explanation:

Given that the orange punch has 45% juice and the mango punch has 20% juice, if you want to create a mixture of 500 liters of fruit punch that has 40% juice, to determine the percentage of punch of each fruit to be used, the following calculation must be performed:

45 x 1 + 20 x 0 = 45

45 x 0.9 + 20 x 0.1 = 42.5

45 x 0.8 + 20 x 0.2 = 40

Therefore, it takes 80% orange punch and 20% mango punch to create a mixture with 40% juice. Thus, since 500 x 0.8 equals 400, 400 liters of orange punch and 100 liters of mango punch are required to create a mixture with 40% juice.

Answer:

Step-by-step explanation:

THE MIDDLE ONE

Answer:

yes

Step-by-step explanation:

5 times 3 is 15 and 12 and 15 and 12 divided  by  3 you will get 5/4

Answer: no

Step-by-step explanation:

117% equals 1.17 and 50/33 equals 1.51 repeating so they aren’t equal.

Answer:

The answer is 91/12 in exact form or 7 7/12 in mixed number form.

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

Answer:

B. 5 + 7i

General Formulas and Concepts:

Pre-Algebra

Algebra I

Algebra II

Step-by-step explanation:

Step 1: Define expression

(8 + 9i) + (5 - 9i) - (8 - 7i)

Step 2: Simplify

Answer:

B.) 0.684 and 0.122

Step-by-step explanation:

A number that cannot be expressed as a ratio between two integers and is not an imaginary number. If written in decimal notation, an irrational number would have an infinite number of digits to the right of the decimal point, without repetition. Pi and the square root of 2 (√2) are irrational numbers.

pi = 3.14159265359.....

e  = 2.71828182845.....

Both are irrational

Answer:

8

Step-by-step explanation:

10 - 2 = 8

But then again it could be 10 because technically she still has the other two, it's just that they're in her stomach :)

Answer: 243

Step-by-step explanation:

It’s going up by the square roots of 3 so therefore the fourth term is 3 to the fourth power which is 243.

Answer:

i believe its c

Step-by-step explanation:

Answer:

y-intercept: [tex]y=0[/tex]

axis of symmetry: [tex]x=0[/tex]

vertex: [tex](0,0)[/tex]

Step-by-step explanation:

To find the y-intercept, set x = 0 and solve for y.

I am assuming f(x) = y

[tex]y=4x^2[/tex]

[tex]y=4(0)^2[/tex]

[tex]y=0[/tex]

The y-intercept of the equation is y = 0.

Now, for the axis of symmetry, you need the equation [tex]x=\frac{-b}{2a}[/tex]

In an equation.. [tex]y=ax^2+bx+c[/tex]

In this case, there is only an a, so plug in the values into the equation.

[tex]x=\frac{0}{2(4)}[/tex]

[tex]x=0[/tex]

The axis of symmetry is x = 0.

To find the vertex, change the format of the equation from standard form to vertex form.

Vertex form: [tex]y=a(x-h)^2+k[/tex]

The vertex is [tex](h,k)[/tex]

[tex]y=4x^2 = 4(x+0)^2+0[/tex]

[tex](h,k)=(0,0)[/tex]

The vertex in this case is (0,0).

Graphing makes things a lot easier. If you can graph it, all you have to do is look at the graph and the answers are all there!

Hope this helped you!