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1 year ago

Whatare three integers that do not have the same sign that have a sum of -20

Mathematics

1 answer:

fomenos1 year ago

6 0

Answer:

Write two integers with opposite signs, say 2 and -10. When we add them, we obtain -8. To have a sum of -20, the third integer must be -12 so the three possible integers are:

2,-10,-12

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Rafael is burning a CD for Selena. The CD will hold 35 minutes (2100 seconds) of music. Which songs should he select from the li

Andreyy89

Answer:

d,e,i,f,c,g,a

Step-by-step explanation:

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2 years ago

Help please<br> 14 + 18 ÷ 2 x 3 - 7

Komok [63]

Answer:

Step-by-step explanation:

1.) 14 + 18 ÷ 2 × 3 - 7

2.) 18 ÷ 2 = 9

3.) 14 + 9 × 3 - 7

4.) 9 × 3 = 27

5.) 14 + 27 - 7

6.) 14 + 27 = 41

7.) 41 - 7 = 34

5 0

3 years ago

Michael started baking at 6:35 PM and finished at 7:22 PM. How long did it take him? Give your answer in minutes.

satela [25.4K]

Answer:

1 hour 13 min

Step-by-step explanation:

Given data

Start time= 6:35 PM

Finish time= 7:22 PM

Hence the time spent is

=7:22-6:35

=1:13

Hence the time spent is 1 hour 13 min

6 0

3 years ago

Consider a population consisting of values 2, 3, 5, 7. what is the population standard deviation?

denis23 [38]

Answer:

The population standard deviation is 1.92.

Step-by-step explanation:

Population mean:

Sum of all values divided by the number of values. Thus:

$M = \frac{2 + 3 + 5 + 7}{4} = 4.25$

Population standard deviation:

Square root of the division between the sum of the difference squared of each value and the mean, and the number of values. Thus.

$S = \sqrt{\frac{(2-4.25)^2 + (3-4.25)^2 + (5-4.25)^2 + (7-4.25)^2}{4}} = 1.92$

The population standard deviation is 1.92.

6 0

2 years ago

7. 4y(5y - 11) – 2y(3y + 10)

Kaylis [27]

Answer:

$14y^{2} -64y$

Step-by-step explanation:

Hello!

4y(5y - 11)

Distribute the 4y

4y * 5y = 20y^2

4y * -11 = -44y

Put it together

20y^2 - 44y

2y(3y + 10)

Distribute the -2y

-2y * 3y = -6y^2

-2y * 10 = -20y

Put it gether

-6y^2 - 20y

Put it all together

20y^2 - 44y - 6y^2 - 20y

Combine like terms

14y^2 - 64y

The answer is $14y^{2} -64y$

Hope this helps!

5 0

3 years ago