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Lesechka [4]
2 years ago
12

Help please!!! what goes in the y for the output?

Mathematics
2 answers:
disa [49]2 years ago
8 0

Answer:

(-2)² +1 =5

(-1)²+1=2

(0)²+1=1

(1)²+1=2

(2)²+1=5

Just substitute the given value in the given equation

Mazyrski [523]2 years ago
5 0

Answer:

5, 2, 1, 2, 5

Step-by-step explanation:

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There are (4 over 3)2 ⋅ 40 strawberries on a farm. What is the total number of strawberries on the farm? (1 point)
djverab [1.8K]

The total number of strawberries on the farm is approximately 107

<h3>Total strawberries</h3>

The total number of strawberries on the farm can be solved by evaluating the expression (4 over 3)2 ⋅ 40.

Evaluation is the completion of a mathematical operation.

Number of strawberries on the farm = (4 over 3)2 ⋅ 40

= (4/3)2 × 40

= 8/3 × 40

= (8 × 40) / 3

= 320/3

= 106.6666666666666

Approximately,

Number of strawberries on the farm = 107

A strawberry is a sweet, usually red, edible fruit of certain plants of the genus Fragaria.

A farm is a piece of land where plants are cultivated and animals are reared by the farmer.

Therefore, the total number of strawberries on the farm is approximately 107.

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6 0
1 year ago
Let x represent the amount of time it takes a student to park in the library parking lot at the university. if we know that the
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3 0
3 years ago
An ostrich egg weighs 64 ounces is the weight of the ostrich egg greater than 5 pounds?
IgorLugansk [536]

Answer:

An ostrich egg is 4 pounds, therefore, an ostrich egg is not greater than 5 pounds.

Step-by-step explanation:

Convert the ounces to pound.

1 pound = 16 ounces

Next, divide.

64 ÷ 16 = 4.

4 < 5

So, an ostrich isn't greater than 5 pounds

Have a wonderful day!

4 0
2 years ago
Professor Isaac Asimov was one of the most prolific writers of all time. Prior to his death, he wrote nearly 500 books during a
svp [43]

Answer:

Step-by-step explanation:

n = sample size = 5

a) Let us determine the sum

\sum x_i= 100+200+300+400+490=1490

\sum x_i^2= 100^2+200^2+300^2+400^2+490^2=540100

\sum y_i = 237+350+419+465+507=1978

\sum y_i^2= 237^2+350^2+419^2+465^2+507^2=827504

\sum x_i y_i=100  \times 237 + 200\times350+300 \times 419 + 400 \times 465 +  490 \times 507=653830

Now we can determine S_x_x, S_x_y, S_y_y

S_x_x = \sum x_i^2-\frac{(\sum x_1)^2}{n} \\= 540100 - \frac{1490^2}{5} \\= 96080

S_x_y = \sum x_i y_i -\frac{(\sum x_i)(\sum y_i) }{n} \\\\

653830 - \frac{1490 \times 1978 }{5}  = 64386

S_y_y = \sum y_i^2-\frac{(\sum y_i)^2 }{n} = 82750-\frac{1978^2}{5} \\\\= 45007.2

The estimate b of the slope β is the ratio of S_x_y and S_x_x

b = \frac{S_x_y}{S_x_x}

\frac{64386}{96080}  = 0.67

The mean is the sum of all value divide by number of values

\bar x= \frac{\sum x_i}{n} \\\\= \frac{100+200+300+400+490}{5} \\\\= \frac{1490}{5} = 298

\bar y= \frac{\sum y_i}{n} \\\\= \frac{237+350+419+465+507}{5} \\\\= \frac{1978}{5} = 395.6

The estimate a of the intercept is

a = \bar y - b \bar x

= 395.6 - 0.69 \times 298\\= 195.9

General least square equation;

\bar y = \alpha + \beta x

replace alpha by a = 3 and beta by b = 0.67 in general least equation

y = a + bx

195.9 + 0.67x

b)

<em>Scatter plot is shown in the attached file</em>

x is on the horizontal axis

y is n the vertical axis

The degree of freedom of regression is 1

because we use one variable s predictor variable

d_f_R = 1

The degree of freedom of error is the sample size n decrease by 2

d_f_E =n-2= 5 - 2=3

Total df is equal to the sum  of seperate degree of freedom dfR  and dfE

total df = 1 +3  4

SSR = \frac{(S_x_y)^2}{S_x_x} = \frac{64386^2}{96080} \\\\= 43146.9296

Total SS =Syy= 45007.2

SSE + Total SS = SSR

= 45007.2 - 43146.9296

= 1860.2705

7 0
3 years ago
Joanna, the line manager at Smedley Electronics, works 14 hours a week more than her line workers and gets paid $6.50 more per h
chubhunter [2.5K]
Given:
Joanna :
works 14 hrs a week more than her line workers.
gets paid 6.50 more per hour than her line workers.

Line workers: h = hours per week ; d = dollars per hour.

Line worker = Dollar per hour * number of hours.
Joanna = (Dollar per hour + 6.50)(number of hours + 14 hours)

Line worker:
$576 = d * 36 hours
$576/36 = d
$16 = d    hourly rate of line worker.

Joanna:
$16 + 6.50 = $22.50 hourly rate
36hrs + 14hrs = 50 hours per week.

Weekly pay of Joanna: $22.50 * 50 = $1,125
5 0
2 years ago
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