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3 years ago

Find the product of - 1.3 and 2.12 ?

Mathematics

2 answers:

Alchen [17]3 years ago

8 0

The answer is -2.756

Lubov Fominskaja [6]3 years ago

8 0

Answer:

The answer is (-2.756)

Step-by-step explanation:

(-1.3) × (2.12) = -2.756

Thus, The product of (-1.3) and 2.12 is (-2.756).

-TheUnknownScientist 72

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3( x - 2 ) + 2 (4x - 1)

Vika [28.1K]

Answer:

11x-8

Step-by-step explanation:

First distribute the 3 and 2. (Only in the parenthesis!):

3(x-2)+2(4x-1)

3x-6+8x-2

Combine like terms:

3x+8x=11x

-6-2=-8

So the answer is:

11x-8

4 0

3 years ago

Find the scale factor that was used

zimovet [89]

Scale factor is 2
30/15 = 2
20/10 = 2

3 0

3 years ago

Read 2 more answers

In 2010, the population of a city was 241,000. From 2010 to 2015, the population grew by 5%. From 2015 to 2020, it fell by 4%. T

lawyer [7]

Answer:

242, 900 people

Step-by-step explanation:

To begin, it says that the population grew by 5%.

(241000)(1.00 + 0.05) = population of the city in 2015

(241000)(1.05) = 253050

253050 is the population of the city in 2015. From 2015 to 2020 it fell four percent.

(253050)(1.00 - 0.04) = population of the city in 2020

(253050)(0.96) = 242928

242928 is the exact population of the city. However, it says to round to the nearest hundred. Since 28 is less than 50, then it would round down to 900.

Therefore, the answer would be 242, 900 people.

4 0

2 years ago

Which one is greater??

Andrew [12]

224.9>224.92 hope it helps

8 0

3 years ago

425 school children were surveyed about what they want to be when they grow up, out of a choice of five professions. The results

hammer [34]

Given:

425 school children

Teacher : 80
Doctor : 105
Lawyer : 70
Police Officer : 70
Firefighter : 100
Total = 425

After applying Pearson's chi-squared test, it is concluded that this data reflects a real difference in the population.

$x^{2} = summation ((O_i - E_i)^2/E_i)$

6 0

3 years ago