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Which choice is equivalent to the product below?

Answer:

y - 4 = (2/5)(x + 2)

Step-by-step explanation:

point slope form is

y - y₁ = m(x - x₁)

(x₁, y₁) is a point on the line and m is the slope

------------------------

Given (x₁, y₁) = (-2, 4) and m = 2/5

y - 4 = (2/5)(x + 2)

Answer:

Step-by-step explanation:

Answer:

Semicircle = 353.25 cm²

Step-by-step explanation:

Area of semicircle = πr²/2

substitute the values

semi circle = 3.14 × 15 × 15 / 2

Area of semicircle = 353.25 cm²

Answer:

c-635.25pi

Step-by-step explanation:

volume of cylinder is pi*radius squared*height(here they gave you the diameter so you'll have to divide it by 2 to get the radius)

so pi*(11/2)^2*21

and you end up with 635.25pi

Answer:e so ir no tradutor

Step-by-step explanation:

Answer:

Step-by-step explanation:

Time = 2 hrs + 12 min (10) = 4 hrs.

Cost = 35 + 20*4

Cost = 35+80

Cost = 115

9514 1404 393

Answer:

  £155

Step-by-step explanation:

We can write the function describing the charges as a composition.

  t(s) = 2 + 12/60s = 2 +s/5 . . . . . hours for s switches

  c(h) = 35 +30h . . . . . . . . . . . . . charge for h hours

Then the charge for s switches is ...

  f(s) = c(t(s)) = 35 +30(2 +s/5) = 35 +60 +6s

  f(s) = 95 +6s . . . . . . . charge for installing s switches

The charge for 10 switches is then ...

  f(10) = 95 +6·10 = 95 +60

  f(10) = 155 . . . . pounds

The electrician should charge her customer £155 for wiring a house with 10 switches.

Answer:

Step-by-step explanation:

11.04 = 10(1.02)^n

1.104 = 1.02^n

ln 1.104 = ln 1.02^n

ln 1.104 = n ln 1.02

n = ln 1.104/ ln 1.02

n = 4.99630409516

4.99 can be rounded to 5.

So a reasonable domain would be 0 ≤ x < 5

PART B)

f(0) = 10(1.02)^0

f(0) = 10(1)

f(0) = 10

The y-intercept represents the height of the plant when they began the experiment.

f(1) = 10(1.02)^1

f(1) = 10(1.02)

f(1) = 10.2

(1, 10.2)

f(5) = 10(1.02)^5

f(5) = 10(1.1040808)

f(5) = 11.040808

f(1)=10(1.02)^1

f(1)=10.2

Average rate= (fn2-fn1)/(n2-n1)

                     =11.04-10.2/(5-1)

                    =0.22

the average rate of change of the function f(n) from n = 1 to n = 5 is 0.22.  

Answer:

6x + 7

Step-by-step explanation:

7x - 8 - x

=>6x - 8

=> 6x - 8 + 1 (including x as number)

=>6x + 7

There are numbers in between (x) to (7x - 8), as per linear equation.

"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, 'x' is a variable, 'A' is a coefficient and 'B' is constant."

Given two numbers are (x) and (7x - 8).

Therefore, total numbers in between (x) and (7x - 8) are:

= (7x - 8) - x + 1

= 6x - 7

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Answer:

40*40=1600

PLS MARK BRAINLIEST

Answer:

Step-by-step explanation:

m = (y2-y1) / (x2-x1)

m = (-8-0) / (-5-5) = 4/5  

note that it does not matter which points you chose to be second or first

then use slope point equation again it does not matter which point from the slope you use

y - y1 = m ( x - x1 )

y - 0 = 4/5 ( x - 5)

y = 4/5x -4

please if you find my answer helpful mark it brainiest

Answer:

Step-by-step explanation:

What are the nasser choices

Answer:

a^32.

Step-by-step explanation:

Using one of the laws indices:

(a^8)^4

= a^(8*4)

= a^32.

8. 5, 6, 3, -5

9. Winter, Colder

10. 5, 6, 10, 12, 7

11. Units squared and Units cubed, the difference is that with cubed you're getting the area of three planes instead of two.

Answer:

x=80

Step-by-step explanation:

Answer:

(x,y) = (3.5, 11)

Step-by-step explanation:

(8,2)(x,y) = (28,22)

Dot product, so:

[tex](8,2)(x,y) = (8x,2y) = (28,22)[/tex]

Then

[tex]8x = 28[/tex]

[tex]x = \frac{28}{8} = 3.5[/tex]

And

[tex]2y = 22[/tex]

[tex]y = \frac{22}{2} = 11[/tex]

So

(x,y) = (3.5, 11)

Answer:

The probability is 0,0367 that the sample mean impurity level exceeds the population mean by 0.2864 grams of chemical.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Standard deviation 1.6 grams of chemical. Random sample of 100.

This means that [tex]n = 100, s = \frac{1.6}{\sqrt{100}} = 0.16[/tex]

The probability is 0,0367 that the sample mean impurity level exceeds the population mean by how much?

​Z multiplied by s, in which Z has a p-value of 1 - 0.0367 = 0.9633, so Z = 1.79.

1.79*0.16 = 0.2864.

The probability is 0,0367 that the sample mean impurity level exceeds the population mean by 0.2864 grams of chemical.

Answer:

use 0-9 to fill in blanks

Step-by-step explanation:

Answer:

60 = 15+m

Step-by-step explanation:

sum is the outcome or total of an addition problem

Answer:

I do and im always ready to help

Answer:

15

Step-by-step explanation:

2/3 of 30 is 20, so 1/2 of 30 is 15

the answer is in the image above

12z - 21 = 92

12z - 21 + 21 = 92 + 21

12z = 113

z = 113/12

I think the answer is 16 but I'm not 100% sure

Answer:

its 1.388 p

Step-by-step explanation:

i hope this helps

Answer:

where is the photo

Step-by-step explanation:

Answer:

2 1/2

Step-by-step explanation:

4 7/8= 39/8

2 2/8= 19/8

39/8 - 19/8 = 20/8 = 2 4/8 = 2 1/2

Answer:

Step-by-step explanation:

產品 1 14 20 13

產品 2 15 11 18

產品 3 12 15 16

Answer:

Step-by-step explanation:

y=4(x+6)(x+4)

y=4(x^2+10x+24)

Answer:

He played 40 matches in total, scoring 32 goals.

Step-by-step explanation:

Since after a certain number of football matches, a footballer averages 1 goal per game, and he only scored 2 goals in the next 10 games and his average dropped to 0.8 goals per game, to determine how many football matches did he play altogether you must perform the following calculation:

10/10 + 2/10 = 12/20 = 0.6

8/8 + 2/10 = 10/18 = 0.55

12/12 + 2/10 = 14/22 = 0.64

20/20 + 2/10 = 22/30 = 0.73

24/24 + 2/10 = 26/34 = 0.76

30/30 + 2/10 = 32/40 = 0.8

Thus, he played 40 matches in total, scoring 32 goals.

Answer:

8200 * 100 = 820,00

820,000 ÷ 10 = 82,000

820 * 10 = 8200

82,000 ÷ 1,000 = 82

Step-by-step explanation:

Love your username btw

Arithmetic operations contain operations such as Addition, Subtraction, Multiplication, and Division.

Arithmetic operations exist as a branch of mathematics, that concerns the analysis of numbers and operation of numbers that exist valid in all the other constituents of mathematics. It essentially contains arithmetic operations such as Addition, Subtraction, Multiplication, and Division.

8200 [tex]*[/tex]100 = 8,20,000

820000 ÷ 10 = 82,000

820 [tex]*[/tex] 10 = 8,200

82000 ÷ 1000 = 82

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