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Will give brainliest <3! please help! no fake answers please

Answers

Answer 1

Answer:

Answer:

input 1 output 1 ×7 =7

input 2 output 2 ×7 =14

input 3 output 3 ×7=21

input 4 output 4×7=28

Answers are 7, 14, 21 and 28

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The floor of a shed given on the right has an area of 44 square feet . The floor is in the shape of a rectangle whose length is 3 less than twice the width. Find the length and width of the floor of the shed.

Answers

Answer:

The length and width of the floor of the shed are 8 feet and 5.5 feet, respectively.

Step-by-step explanation:

Given that the shape of the shed is a rectangle, the expression for the area is:

$A = w \cdot l$

Where $w$ and $l$ are the width and length of the shed, measured in feet. In addition, the statement shows that $l = 2\cdot w - 3\,ft$ . Then, the equation of area is expanded by replacing length:

$A = w\cdot (2\cdot w - 3)$

$A = 2\cdot w^(2) - 3\cdot w$

If $A = 44\,ft^(2)$ , then, a second-order polynomial is formed:

$2\cdot w^(2)-3\cdot w - 44 = 0$

The roots of this equation are found via General Equation for Second-Order Polynomials:

$w_(1) = (11)/(2)\,ft$ and $w_(2) = -4\,ft$

Only the first roots is a physically reasonable solution. Then, the length of the shed is:

$l = 2\cdot \left((11)/(2)\,ft \right)-3\,ft$

$l = 8\,ft$

The length and width of the floor of the shed are 8 feet and 5.5 feet, respectively.

(a) Count the number of ways to select a sample of 3 people to serve on a board of directors from a population of 6 people. answer: (b) If a simple random sampling procedure is to be employed, the chances that any particular sample will be the one selected are

Answers

Answer:

a) 20

b) Equally likely, 0.05

Step-by-step explanation:

We are given the following in the question:

Population size, n = 6

Sample size, r = 3

a) Ways to select a sample of 3 from a population of 6

$= n^C_r\n=^6C_3\n\n=(6!)/(3!(6-3)!)\n\n=(6!)/(3!3!)\n\n=20$

Thus, there are 20 ways in which a sample of 3 can be selected from a population of 6.

b) The chances that any particular sample will be the one selected are equally likely.

$\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}$

Probability of selecting one particular sample =

$\text{P(Sample)} = (1)/(20) = 0.05$

Thus, 0.05 is the equally likely probability of selecting one sample.

- 5 + 7k = -19
Help pwease

Answers

Answer:

k = -2

Step-by-step explanation:

-5 + 7k = -19

7k = -14

k = -2

What is the difference between (4,4) and (1,-3)

Answers

Answer:

7/3

Step-by-step explanation:

If I solved it correctly, you use y2-y1 / x2-x1. From here you get -3-4/1-4=-7/-3 which when you divide equals 7/3. LMK IF its wrong and ill figure it out champ!

Suppose that the local sales tax rate is 5 %and you purchase a car for $ 27,400
.
a. How much tax is paid?
b. What is the car's total cost?

Answers

Answer:

A: Tax paid us $1370

B: Total cost= car cost + taxes

$27,400+ $1370

=$28,770

Step-by-step explanation:

Mrs. Gregory, the golf course superintendent at a country club, plans to reseed the putting green of the first hole. The circular putting green has a diameter of 38 ft.What is the area of the putting green?

Use π=3.14. Round to the nearest tenth