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2 years ago

Hi I rly need some help plz answer;)

Mathematics

2 answers:

Artyom0805 [142]2 years ago

6 0

Answer:

Step-by-step explanation:

a) 1 Kg = 1000 grams

1.8 Kg = 1.8 * 1000 = 1800.0 = 1800 grams

b) Weight of one toy = Weight of all the 6 toys ÷ 6

= 1800 ÷ 6

= 300 grams

c) Weight of 4 toys = 4 * 300

= 1200 grams

= 1200 ÷ 1000

= 1.2 Kg

weeeeeb [17]2 years ago

4 0

Answer:

Step-by-step explanation:

1.8kg into grams

1.8kg = 1800 grams

Total toys = 6

Weight of one toy = 1800 ÷ 6 = 300 grams

Weight of 4 toys = 300 x 4 = 1200 grams = 1.2kg

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andre [41]

Answer:

70.91 x 10 = 709.1

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2 years ago

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Kendra reads in Modern Dog Magazine that the average age of dogs currently alive is 4.8 years. To determine if this finding appl

SOVA2 [1]

Answer:

The true statement about Kendra's sample is:

b) Kendra's samples are precise but not accurate.

Step-by-step explanation:

a) Data and Calculations:

Average age of dogs currently alive = 4.8 years

Average ages of dogs in Kendra's sample

Week Average Age (in years)

1 3.7

2 3.8

3 4.2

4 4.1

5 3.9

6 3.9

7 4.0

Total 27.6

Mean = 3.9 (27.6/7)

b) Accuracy refers to how close Kendra's sample mean age of dogs is to the average age value as stated in the Modern Dog Magazine. While the Magazine stated an average age of 4.8 years, Kendra's sample produced a mean of 3.9 years. On the other hand, precision refers to how close Kendra's sample measurements are to each other. With a mean of 3.9 years, the sample measurements are very close to each other. Therefore, we can conclude that "Kendra's samples are precise but not accurate."

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2 years ago

Can anyone Help I have 25 questions, 2hr 40mins remaining,

11Alexandr11 [23.1K]

Combining the like-terms, the result of the addition of polynomials f(x) and g(x) is given by:

$f(x) + g(x) = 21x^3 + \frac{5}{4}x^{\frac{1}{2}} + 19x^{-\frac{1}{4}} + 8x^{-4}$

<h3>How do we add polynomials?</h3>

We add polynomials combining the like-terms, that is, adding terms with the same exponent.

In this problem, the polynomials are:

$f(x) = 3x^{\frac{1}{2}} + 7x^{-\frac{1}{4}} + 8x^{-4}$

$g(x) = -\frac{7}{4}x^{\frac{1}{2}} + 12x^{-\frac{1}{4}} - 21x^3$

Combining the like terms, the addition is given by:

$f(x) + g(x) = \left(3 - \frac{7}{4}\right)x^{\frac{1}{2}} + (7 + 12)x^{-\frac{1}{4}} + 8x^{-4} + 21x^3$

$f(x) + g(x) = 21x^3 + \frac{5}{4}x^{\frac{1}{2}} + 19x^{-\frac{1}{4}} + 8x^{-4}$

More can be learned about addition of polynomials at brainly.com/question/9438778

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2 years ago

Cycle City charges an initial price of $15 plus $0.75 per hour for bike rentals, which is

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Answer:

See Explanation

Step-by-step explanation:

Given

$Rentals = 15 + 0.75h$

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From the instruction in the question, we understand Cycle city charges an additional 0.75 per hour.

This implies that h represents the additional hour of rentals

Solving (b): What does 15 represents

From the instruction in the question, we understand Cycle city charges an a base charge of $15

This implies that 15 represents the base charge

Solving (c): 0.75h

Referring back to (a) where h represents the additional hour of rentals

0.75h represents the total charges for the additional hour

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago