40% of x is 35.
Write an equation that shows the relationship of 40%, x, and 35.
Use your equation to find x. Show your reasoning.

i really need help

Answer:

(a) [tex]s = 2.56[/tex]

(b) [tex]s = 1.71[/tex]

Step-by-step explanation:

Given

Tables (a) and (b)

Required

Determine the standard deviation

For (a):

[tex]\bar x = 11.5[/tex] --- mean

The standard deviation is calculated as:

[tex]s = \sqrt{\sum np(1-p)}[/tex]

This gives:

[tex]s = \sqrt{5*0.1*(1-0.1) +10 * 0.5 * (1 - 0.5) + 15 *0.4*(1-0.4) }[/tex]

[tex]s = \sqrt{5*0.1*0.9 +10 * 0.5 * 0.5 + 15 *0.4*0.6 }[/tex]

[tex]s = \sqrt{6.55}[/tex]

[tex]s = 2.56[/tex]

For (b):

[tex]\bar x = 4.4[/tex] --- mean

The standard deviation is calculated as:

[tex]s = \sqrt{\sum np(1-p)}[/tex]

This gives:

[tex]s = \sqrt{1*0.2*(1-0.2) +3 * 0.3 * (1 - 0.3) + 5 *0.1*(1-0.1) + 7*0.4*(1-0.4)}[/tex]

[tex]s = \sqrt{1*0.2*0.8 +3 * 0.3 * 0.7 + 5 *0.1*0.9 + 7*0.4*0.6}[/tex]

[tex]s = \sqrt{2.92}[/tex]

[tex]s = 1.71[/tex]

Answer:

1/16

2x2x2x2=16

1x1x1x1=1

Answer:

choice 4,  1/16

Step-by-step explanation:

(1/2)^4=(1/2)(1/2)(1/2)(1/2)=1/16

Answer

0.75 or 3/4 is the answer (degree)

I just solved for the angles and use a graphing calculator to find the din and cosine values and multiply them

Answer:

Step-by-step explanation:

The second one.

Answer:

22.5 i think

Step-by-step explanation:

-3x + 8 + 5x = - 35

add like terms

2x + 8 = -35

subtract 8 on both sides

2x  = 43

divide by 2

22.5

Answer:

22.5

Step-by-step explanation:

add subtract and multiply on a algebra calcutalor aka mathpapa dowload it and it should help

Answer:

the answer would be:

[tex]2n^3[/tex]

Hope that helps! :)

Step-by-step explanation:

I'm not sure. Don't be angry but this is my first time on this app but it helps a lot and i would also like to help but it seems that I'm the one who needs help.

Answer:

525 $

Step-by-step explanation:

Amount borrowed = $2500

Rate = 7%

Time = 3 years

therefor interest = $2500 X 7/100 X 3

     Hope it help You

Answer:

I think it's PEMDAS, but I'm not sure- sorry if it's wrong.

Step-by-step explanation:

Answer:

E

Step-by-step explanation:

Answer:

by Pythagoras theorm

H² = B² + P²

H². = 40² + 42²

= 1600 + 1764

= 3364

= 58²

H = 58

hope it helps

Answer:

Here is the work ive done here, im a professional so i want to make it very easy for you to understand! Here is the answer: https://youtu.be/dQw4w9WgXcQ

Answer:

16530

Step-by-step explanation:

It is the answer..

Step-by-step explanation:

no entiendo.....aaaaa

Answer:

6b+4

Step-by-step explanation:

Answer:

4.75 if you don't have to convert it to US dollars.

Step-by-step explanation:

1. The question is asking how much is the cost of each sachet.

2. One given fact is that 6 pieces of a sachet cost 28.50.

3. Division.

4. Can't tell if you're asking for the equation but 28.50 / 6 = 4.75. Or do 28.50 / 6 = c

5. 4.75.

If they're asking you to convert it into united states dollars:

1. It's asking how much is the cost of each sachet.

2. One given fact is that 6 pieces of a sachet cost 28.50.

3. Division.

4. Can't tell if you're asking for the equation but 28.50 / 49 = 0.58163265306 (0.59 if you round it) Or do 28.50 / 49 = c

5. 0.59.

Tbh I just used g00gle and converted philiphine pesos to USD (United States) dollars, if it's not right, then sorry-

Hope this helped!!

I think that A would be the correct answer.

Answer:

100:10

36:6

-64:not a real number ig

49:7

81:9

Step-by-step explanation:

how this helps byee

Answer:

It's false

Step-by-step explanation:

1.25*200=250 not 300.

Answer:

$4,266.48

Step-by-step explanation:

Hope this helps.

Answer:

y = -16x + 16

Step-by-step explanation:

You can write a linear equation by getting the slope (m) and y-intercept (b).

To get the slope, you have to (y2 - y1) / (x2 - x1).

Which in this case, I'm going to used points (0,16) and (1,0).

So,

(0 - 16) / (1 - 0) = -16 / 1 = -16

m = -16

Now since we have the slope, the equation would look like y = -16x + b

You then have to input any x and y points (I'm going to use 1,0).

0 = -16(1) + b

0 = -16 + b

b = 16

Put this all together,

y = -16x + 16

Hope this helps :)

Let me know if there is any mistakes!!

Answer:

y = -16x + 16

Step-by-step explanation:

Answer:

I don't know that is hard

Step-by-step explanation:

You said this was an easy math question.

Answer:

I think it's b

Step-by-step explanation:

ah=b1+b2/2

h=ax(b1+b2)/2

Answer:

I guess 5

Step-by-step explanation:

2 q 0 n 0 d

1 q 1 n 2 d

1 q 3 n 1 d

1 q 5 n 0 d

0 q 3 d 4 n

Answer:

240 inches squared

Step-by-step explanation:

[tex]A=5*4*12=240[/tex]

I suppose the third term should say -10/3, not -103.

Notice that

-2 = -6/3

-4 = -12/3

so that, starting with the first term a(1) = -6/3, the every following term is obtained by subtracting 2/3.

-2 - 2/3 = -6/3 - 2/3 = -8/3

-8/3 - 2/3 = -10/3

-10/3 - 2/3 = -12/3 = -4

and so on.

So the recursive rule is

a(1) = -2,

a(n + 1) = a(n) - 2/3, for n ≥ 1

or C.

Answer:

244

Step-by-step explanation:

We will see that the evaluated expression is equal to 244.

Evaluating an expression just means that we need to replace the variables by the wanted numbers.

Here we need to evaluate:

2(s+t)³-6

In t = 2 and s = 3, replacing these in the expression we get:

2(3+2)³- 6 = 2*(5)³ - 6 = 2*125 - 6 = 244

So the evaluated expression is equal to 244.

If you want to learn more about evaluating, you can read:

https://brainly.com/question/4344214

Answer:

Step-by-step explanation:

Answer:

no solutions

Step-by-step explanation:

Step-by-step explanation:

step 1. The x values refer to the domain of the function.

step 2. if you set y = 0 and solve the quadratic equation the x values refer to the point the graph crosses the x axis.

Answer:

177 grams

Step-by-step explanation:

Answer:

53grams... Approximated

Step-by-step explanation:

In 66 years = 240/2 = 120 grams

In 1 year = 120/66 gram

In 29 years = 120/66 × 29 = 52.73grams