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Andreas93 [3]
4 years ago
9

Please what are plane shapes

Mathematics
2 answers:
likoan [24]4 years ago
8 0

Answer:

Circle

hope this helps.

Mariulka [41]4 years ago
4 0

Answer:

A closed, two-dimensional or flat figure is called a plane shape.

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One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, how man
Yanka [14]

Answer: 144 minutes

Step-by-step explanation:

Based on the information that has been given in the question, the minutes that the slower pipe alone can use in filling the tank can be denoted by y minutes.

Therefore, the faster pipe will fill it in 1/3 × x = x/3 minutes.

Therefore,

1/x + 3/x = 1/36

4/x = 1/36

x = 36 × 4

x = 144

The number of minutes taken by the slower pipe will be 144 minutes.

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3 years ago
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I think it is the first one even though none of them make since to me
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3 years ago
For a certain class, the ratio of the number of female students to the total number of students is 2 to 5. If
Paul [167]

9514 1404 393

Answer:

  14

Step-by-step explanation:

If 2/5 of the 35 students are female, their number is ...

  (2/5)(35) = 14

There are 14 female students.

5 0
3 years ago
It costs Johnny $15 a month plus $1.50 per song to download music. This situation is represented by the expression 1.5x + 15, wh
Serjik [45]

Answer:

$30

Step-by-step explanation:

To find the cost, plug in 10 for x, then simplify

1.5x + 15

1.5(10) + 15

= 30

So, it will cost Johnny $30 to download 10 songs

8 0
3 years ago
Read 2 more answers
1. What is the sum or difference?
Vanyuwa [196]

<u>Solving question 1 : What is the sum or difference? </u>

4x^{10} - 9x^{10} \\\\ (4-9)x^{10} \\\\ -5x^{10}

Hence, option A is correct i.e. -5x^{10}.

<u>Solving question 2 : What is the sum or difference? </u>

6x^{5} - 9x^{5} \\\\ (6-9)x^{5} \\\\ -3x^{5}

Hence, option D is correct i.e. -3x^{5}.

<u>Solving question 3 : Write the Polynomial in standard form. </u>

2 - 11x² - 8x + 6x²

We can combine like terms, and rewriting it in decreasing power of x's.

⇒ - 11x² + 6x² - 8x + 2

⇒ (-11 + 6)x² - 8x + 2

⇒ -5x² - 8x + 2

Hence, option A is correct i.e. -5x² - 8x + 2; quadratic trinomial.

<u>Solving question 4 :</u>

White-sided jackrabbits: 5.5x² - 9.2x + 6.9

Black-tailed jackrabbits: 5.5x² + 9.9x + 1.3

Total population = White-sided jackrabbits + Black-tailed jackrabbits

Total population = (5.5x² - 9.2x + 6.9 ) + (5.5x² + 9.9x + 1.3)

Total population = (5.5 + 5.5)x² + (9.9 - 9.2)x + (6.9 + 1.3 )

Total population = 11x² + 0.7x + 8.2

Hence, option A is correct i.e. 11x² + 0.7x + 8.2

7 0
4 years ago
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