Can someone please help?

in 12 key 5 black keys are appearing so consider x key will appear in 120 keys

120/x = 12/5

solving further,

x= 50

Answer - If the pattern shown continues, 50 black keys appear on a pipe organ with a total of 120 keys!

Answer:

A≈201.06cm²

Step-by-step explanation:

Answer:

b)-1.5

Step-by-step explanation:

Answer:

The answer is option C

Step-by-step explanation:

Because it is parallel and it is true that since it is all even it will be a better supply to use

Answer:

part a answer is b and part b answer is 3

Step-by-step explanation:

Answer:

i would like to have the pic of the graph and ill help asap

Step-by-step explanation:

Answer:

V ≈ 706.9 cm³

Step-by-step explanation:

The volume (V) of a cylinder is calculated as

V = πr²h ( r is the radius and h the height )

Here r = 5 and h = 9 , then

V = π × 5² × 9

   = π × 25 × 9

   = 225π

   ≈ 706.9 cm³ ( to the nearest tenth )

Answer:

[tex]f(7) = 1[/tex]

Step-by-step explanation:

Given

[tex]f(x) = \left[\begin{array}{cc}2x+3&1 <x < 4\\1&x>4\end{array}[/tex]

Required

Determine f(7)

To do this, we make use of

[tex]f(x) = 1[/tex]

Because [tex]7 > 4[/tex]

So, we have:

[tex]f(7) = 1[/tex]

a=25

d=-1

n=8

tn=a+(n-1)d

tn=25-7=18

total distance it 18feet would have traveled by the 8th bounce!!

Answer:

a = 12 and b = 18

Step-by-step explanation:

Given that,

8,a,b,27 are in geometric sequence.

For a GP, the nth term is given by :

[tex]a_n=ar^{n-1}[/tex]

Put n = 4

[tex]a_4=ar^{4-1}\\\\a_4=ar^3\\\\27=8\times r^3\\\\r^3=\dfrac{27}{8}\\\\r=\dfrac{3}{2}=1.5[/tex]

Put n = 2,

[tex]a_2=ar^{2-1}\\\\a=ar\\\\a=8\times 1.5\\\\a=12[/tex]

Put n = 3

[tex]a_3=ar^2\\\\=8\times 1.5^2\\\\b =18[/tex]

So, the values of a and b is 12 and 18 respectively.

Answer:

Below are the responses to the given question:

Step-by-step explanation:

Let X become the random marble variable & g have been any function.

Now.

For point a:

When X is discreet, the g(X) expectation is defined as follows

Then there will be a change of position.

E[g(X)] = X x∈X g(x)f(x)

If f is X and X's mass likelihood function support X.

For point b:

When X is continuing the g(X) expectations is calculated as, E[g(X)] = Z ∞ −∞ g(x)f(x) dx, where f is the X transportation distances of probability.If E(X) = −∞ or E(X) = ∞ (i.e., E(|X|) = ∞), they say it has nothing to expect from EX is occasionally written to stress that a specific probability distribution X is expected.Its expectation is given in the form of,E[g(X)] = Z x −∞ g(x) dF(x). , sometimes for the continuous random vary (x). Here F(x) is X's distributed feature. The anticipation operator bears the lineage of comprehensive & integral features. The superposition principle shows in detail how expectation maintains equality and is a skill.

Answer:

yes 2.605 is a rational number

Answer:

5½ inches

Step-by-step explanation:

7⅔ - 2 1/6 = 7 4/6 - 2 1/6 = 5 3/6 = 5½

Answer:

13.5

Step-by-step explanation:

(0.95)^x = ½

x = ^0.95 log ½

= 13.5

9514 1404 393

Answer:

  B) 171 units^2

Step-by-step explanation:

The area is given by the formula ...

  A = 1/2(b1 +b2)h

Filling in the given base and height values, we find the area to be ...

  A = 1/2(23 +15)(9) = (19)(9) = 171 . . . square units

_____

Additional comment

You can select the correct answer choice simply on the basis of "reasonableness." If this were a 9×15 rectangle, its area would be 9×15 = 135 square units, more than 85.5. You know its area is less than a 9×23 rectangle, so is less than 9×23 = 207 square units. Only one answer choice is a value between 135 and 207.

__

Multiplication by 9 is not so hard. It is multiplication by 10-1:

  15×9 = 15×(10 -1) = 150 -15 = 135

Answer:

Yes, your answers are correct!

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

you are correct!

Answer:

(9,11)

(15,17)

(18,20)

Step-by-step explanation:

9-6=3

11-8=3

18-6=12

20-8=12

15-6=9

17-8=9

3*1=3

3*4=12

3*3=9

Answer:

they might not be the same numbers but you can do it with all of the step-by-step explanations I gave you just with the numbers you have

Step-by-step explanation:

Triangle ABC is a right angle triangle.

From the given right angle triangle,

AB represents the hypotenuse of the right angle triangle.

With m∠A as the reference angle,

AC represents the adjacent side of the right angle triangle.

BC represents the opposite side of the right angle triangle.

To determine tan m∠A, we would apply the tangent trigonometric ratio.

Tan θ = opposite side/adjacent side. Therefore,

Tan A = √32/2 = (√16 × √2)/2

Tan A = (4√2)/2

Tan A = 2√2

Answer:

11^2 = 121.

11 * 11 = 121.

AnSwer:

Step-by-step explanation:

YOUR ANSEWR IS

121 Evaluate.

Answer:

x = 44.4º

Step-by-step explanation:

sin = opp/hyp

sinx = 7/10 = 0.7

x = arcsin0.7

Use calculator

x = 44.4º

Answer:

44.4 I'm 100% sure

Step-by-step explanation:

Answer:

The answer is 77.27%

Step-by-step explanation:

Please mark brainliest!

Enjoy the rest of your day!

Answer:

77.2727.. (repeating)%

or 77 3/11 %

Although im not sure if fractions are accepted in percents, so stick to the first option

Step-by-step explanation:

A percent is simply [tex]\frac{}{100}[/tex]

How many 22's are there in 100? 100/22=4.54 repeating

So 22*4.54 repeating = 100

do the same to both sides of the equation

17 / 22

17*4.54 repeating

77.27272.../100

so 77.27272727... %

Answer:

5/6

Step-by-step explanation:

1/6 x 5=5/6

Answer:

3<+2=13 is the answer

Step-by-step explanation:

The linear equation that could be used to find her monthly pay rate will be y = 12x + 50.

It is referred to as the relationship between two variables, and a straight line is produced when the linear equation's graph is shown. The equation is referred to as a linear equation in one variable if just one variable is contained in the linear equation.

It is given that, Esther is employed by a marketing firm. She makes $12 per hour and receives a $50 monthly travel reimbursement.

Suppose x be the number of months,

The linear equation could be used to find her monthly pay rate is,

Total amount = Amount per hour×number of hour+ travel allowance

y = 12x + 50

Thus, the obtained linear equation for a given condition will be y = 12x + 50.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

Answer:

14.0 cm its a

Step-by-step explanation:

Answer:

The answer is D 763.

Step-by-step explanation:

Don't have an explanation

A chicken farmer needs to sell 763 crates to realize a profit of $11,300.

Equation

A statement of equivalence between two expressions containing variables and/or numbers is called an equation. In essence, equations are questions, and attempts to discover systematic answers to those questions have spurred the development of mathematics.

Equation according to the given information

Based on the given information describe the problem is equation.

(34.24 × x) - (7312 + 9.86x) = 11300

34.24x - 7312 - 9.86x = 11300

34.24x - 9.86x = 11300 + 7312

24.38x = 18612

x = 18612 / 24.38

x = 763

Hence chicken farmers need to sell 763 crate

Learn more about equations here: brainly.com/question/25876690

#SPJ2

Answer:

B. 745 miles

Step-by-step explanation:

Given that

Kim took 3000 miles trip in 4 days

And,

1st day - 850 miles

2nd day - 745 miles

3rd day - 660 miles

We need to find out that how much she travel in the 4th day

So, it is

= 3000 miles - 850 miles - 745 miles - 660 miles

= 745 miles

Hence, the option b is correct

Answer:

(-3, -2)

Step-by-step explanation:

"If the parabola opens up, the vertex represents the lowest point on the graph". By looking at the graph, we can see that the lowest point is (-3, -2).