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Rashid [163]
3 years ago
7

Select all the true statements.

Mathematics
1 answer:
strojnjashka [21]3 years ago
8 0

Answer:

5+(-5)=0

-2+2=0

Step-by-step explanation:

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Help please i need to do this for a review
Natasha_Volkova [10]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
The shortest leg of a triangle is 1 feet shorter than the other leg.The hypotenuse of this triangle is 5 feet. what are the leng
givi [52]

Answer:

  • shortest: 3 ft
  • other: 4 ft

Step-by-step explanation:

The right triangle with hypotenuse 5 that has legs that differ by 1 is the 3-4-5 right triangle. The legs are 3 ft and 4 ft.

__

<em>Alternate solution</em>

If you have never heard of a 3-4-5 right triangle, you can figure the leg lengths algebraically using the Pythagorean theorem. Let x represent the length of the "other" leg. Then the shortest is (x-1). The Pythagorean theorem tells you ...

  5^2 = (x)^2 +(x -1)^2

  25 = 2x^2 -2x +1

  12 = x^2 -x = x(x -1)

Factors of 12 that differ by 1 are 3 and 4 or -3 and -4. We want x to be positive, so the value of interest is x=4

The "other" leg is 4 ft; the shortest leg is 3 ft.

7 0
3 years ago
Read 2 more answers
What's the greatest number of pill bugs found
Nimfa-mama [501]
Yea do you have anything that can show for the question then I might help with your questions:)
6 0
4 years ago
The equation y = 0.002x - 0.30 can be used to determine the approximate cost, y in dollars, of producing x items. How many items
NikAS [45]

Answer:

Company must not produce more than 193,650 units to keep cost as $387

Step-by-step explanation:

we are given with the cost function as

y = 0.002x - 0.30

where x is the number of items produced

We are asked to determine the number of items must be produced so that the cost of production does not go beyond $387

Hence

we put y = 387 and then solve the equation thus formed for x

y = 0.002x - 0.30

387 = 0.002x - 0.30

adding 0.30 on both sides

387+0.30=0.002x

387.30=0.002x

dividing both sides by 0.002

\frac{387.30}{0.002}=x

x=193,650

Company must not produce more than 193,650 units to keep cost as $387

4 0
3 years ago
Why who is bored lol<br><br> top ten tallest buildings
solong [7]

Answer:

  1. <u>Burj Khalifa</u>: in Dubai - United Arab Emirates the height is 2,722′ to the tip
  2. <u>Shanghai Towe</u>r: in Shanghai, China the height is 2,073´
  3. <u>Makkah Clock Tower</u>: in Saudi Arabia the height is 1,972´
  4. <u>Entisar Tower</u>: in Dubai - United Arab Emirates the height is 1,870′
  5. <u>Ping An Finance Centre</u>: in Shenzhen, China the height is 1,966′ to the tip
  6. <u>Lotte Tower</u>: in Seoul, South Korea the height is 1,821′
  7. <u>One World Trade Center</u>: in New York City the height is 1,792′ to the tip
  8. <u>Tianjin Chow Tai Fook Binhai Center</u>: in Tianjin, China the height is 1,739′
  9. <u>CTF Finance Centre</u>: in Guangzhou, China the height is  1,739′
  10. <u>China Zun</u>: in Beijing, China the height is 1,731′

Hope it helps answer the question:)

7 0
4 years ago
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