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yulyashka [42]
3 years ago
8

Find the value of the expression

Mathematics
1 answer:
Sliva [168]3 years ago
8 0

Answer:

the value of the expression is 1

Step-by-step explanation: when you solve it step by step you get 1

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Heights​ (cm) and weights​ (kg) are measured for 100 randomly selected adult​ males, and range from heights of 138 to 190 cm and
mart [117]

Answer:

Best predicted value of y' = 86.16 kg

Step-by-step explanation:

Given,

n = 100

Range of heights = 138 - 190cm

Range of weight = 39 to 150 kg

x' =167.46 cm

y' = 81.44 kg

r = 0.108

p value = 0.285

y = - 105 + 1.08x

Significance level = 0.05

We reject H0 since pvalue, 0.285 is less than significance level of 0.05.

Therefore,

Given height of adult male, x = 177 cm

y = - 105 + 1.08x

The best predicted value of y' =

y' = - 105 + 1.08(177)

y' = 86.16 kg

The best predicted value of y' is 86.16kg

6 0
3 years ago
What will you get when you add two integers
dybincka [34]
Well, it depends if its positive or negative. 2 positive integers will equal a positive, 2 negatives will equal a negative. A negative and a positive will depend.
8 0
3 years ago
Read 2 more answers
i o n f e h y=x3- 3x2- 9 x + 2 The largest and smallest values ​​of the function [ - 2 ; 4 ]At intervals.
Oksana_A [137]

Answer:

Step-by-step explanation:

Given the function :

y=x³ - 3x² - 9x + 2. The largest and smallest values ​​of the function at interval [-2, 4]

We substitute x values in the interval (-2 to 4) into the equation and solve for y

At x = - 2

y = (-2)³ - 3(-2)² - 9(-2) + 2 = 0

At x = - 1

y = (-1)³ - 3(-1)² - 9(-1) + 2 = 7

At x = 0

y = (-0)³ - 3(-0)² - 9(-0) + 2 = 2

At x = 1

y = (1)³ - 3(1)² - 9(1) + 2 = - 9

At x = 2

y = (2)³ - 3(2)² - 9(2) + 2 = - 20

At x = 3

y = (3)³ - 3(3)² - 9(3) + 2 = - 25

At x = 4

y = (4)³ - 3(4)² - 9(4) + 2 = - 18

Function is greatest at

7 0
3 years ago
What is the area of 30x40 rectangle in square units
yan [13]

Answer:

Multiply the two numbers

Step-by-step explanation:

1200 units^{2}

3 0
3 years ago
Read 2 more answers
You can also explain what makes it different by representing each width and height pair with a ratio.
Serga [27]

Answer:

Ratios are Equivalent

Step-by-step explanation:

In first one there are 3 cups of peanuts mixed with 2 cups of raisins.

Ratio of peanut to raisins is 3:2 or 1.5

For second trail mix there is 4.5 cup of peanuts mixed with 3 cups of raisins

Ratio of peanuts to raisins is 4.5:3 or 1.5

They are both 1.5

7 0
3 years ago
Read 2 more answers
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