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valina [46]
2 years ago
15

Hector just bought a new laptop for $780. He earned the $780 by selling lemonade, mowing lawns, and

Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
6 0

Answer:

Step-by-step explanation:

40% of 780 = 312.

780- (312+180)

= 288

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7. 25 yards of hose costs $9.95. How much will 150 feet cost?
Aneli [31]
25 since 150 is equivalent to 25
5 0
2 years ago
Why has social media made a significant impact on influencing government
anyanavicka [17]

Answer:

I have not come across this particular mathematical topic lol. Social media influences people and people influence government. Unless you leave in a non-democracy, the government cares about public opinion to some extent.

3 0
2 years ago
Select the condition for which it is NOT possible to construct a triangle. A triangle with side lengths 4 cm, 5 cm, and 6 cm A t
stellarik [79]

Answer:

Option B: A triangle with side lengths 4 cm, 5 cm, and 15 cm

Step-by-step explanation:

Since we are dealing here majorly with sides, one condition is that each side has to be shorter than the sum of the other two sides and longer than their difference meaning that if we have a, b and c

The a value has to be shorter than the sum of b and c - a < b+c and the a value also has to be longer than their difference - a > b-c

In this example,we have side lengths 4 cm, 5 cm, and 15 cm. Taking a, b and c as 4 cm, 5 cm, and 15 cm respectively.

The sum of 5 and 4 is 9 and the third side 15 is greater than 9 when it is supposed to be less to construct a triangle.

6 0
3 years ago
A force of 3 pounds is required to hold a spring stretched 0.6 feet beyond its natural length. how much work (in foot-pounds) is
ioda

The work done (in foot-pounds) in stretching the spring from its natural length to 0.7 feet beyond its natural length is 1.23 foot-pound

<h3>Data obtained from the question</h3>

From the question given above, the following data were obtained:

  • Force (F) = 3 pounds
  • Extension (e) = 0.6 feet
  • Work done (Wd) =?

<h3>How to determine the spring constant</h3>
  • Force (F) = 3 pounds
  • Extension (e) = 0.6 feet
  • Spring constant (K) =?

F = Ke

Divide both sides by e

K = F/ e

K = 3 / 0.6

K = 5 pound/foot

Thus, the spring constant of the spring is 5 pound/foot

<h3>How to determine the work done</h3>
  • Spring constant (K) = 5 pound/foot
  • Extention (e) = 0.7 feet
  • Work done (Wd) =?

Wd = ½Ke²

Wd = ½ × 5 × 0.7²

Wd = 2.5 × 0.49

Wd = 1.23 foot-pound

Therefore, the work done in stretching the spring 0.7 feet is 1.23 foot-pound

Learn more about spring constant:

brainly.com/question/9199238

#SPJ1

5 0
1 year ago
–<br> 1<br> 3<br> 4<br> +<br> 3<br> 4<br> ×<br> –<br> 4÷2
AveGali [126]

Answer:

-202

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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