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svlad2 [7]
3 years ago
5

Which of the following could not be points on the unit circle?

Mathematics
2 answers:
enyata [817]3 years ago
5 0

Answer:

C and D

Step-by-step explanation:

NemiM [27]3 years ago
4 0
A. √(0.8^2) + (0.6^2) = √1 = 1 => OK

<span>b.(-2/3,√ 5/3) = √(-2/3)^2 + 5/9) = √(4/9 +5/9) = √1 = 1 => OK

c.(√ 3/2, 1/3) = √(3/4 + 1/9) < 1 => it is inside the unit circle

d.(1,1) = √(1 + 1) = √2 > 1 => NO. This point is beyond the limits of the unit circle.</span>
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the perimeter of a triangle is 49cm.One side is 7cm longer than another side and 5cm shorter than the third side find sides
pogonyaev

<em>P = a + b + c = 49 cm</em>

<em>a = b + 7 => b = a - 7</em>

<em>a = c - 5 => c = a + 5</em>

<em>_____________________</em>

<em>a + (a - 7) + (a + 5) = 49</em>

<em>3a = 49 + 7 - 5</em>

<em>3a = 51 </em>

<em>a = 17 cm</em>

<em>b = 17 - 7 = 10 cm</em>

<em>c = 17 + 5 = 22 cm</em>

8 0
2 years ago
Dorian is spreading mulch on his triangular flowerbed. If the base is 8 feet and the height is 6 feet. How many square feet of m
katovenus [111]

Answer:

24 square feet

Step-by-step explanation:

Given:

Dorian is spreading mulch on his triangular flowerbed.

The base is 8 feet.

The height is 6 feet.

Question asked:

How many square feet of mulch will he need for the flowerbed?

Solution:

The base of  triangular flowerbed = 8 feet.

The height of  triangular flowerbed = 6 feet.

now, to find how many square feet of mulch he will need for the flowerbed, we will find area of the triangular flowerbed:-

As we know:

Area\ of\ triangle=\frac{1}{2} \times base\times height

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Thus, 24 square feet of mulch he will need for the flowerbed.

8 0
3 years ago
Find the positive solution of x when:<br><br> 25 = 4/x²
sladkih [1.3K]
1) Multiply both sides by x²

25 {x}^{2} \: = \: 4

2) Divide both sides by 25

{x}^{2} \: = \: \frac{4}{25}

3) Square root both sides

x \: = \: \frac{2}{5}



Viola!
7 0
2 years ago
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Answer:

Scott filled (1/2 - 1/4) of the jar, or 1/4 of the jar this week.

Let me know if this helps!

4 0
3 years ago
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Answer:

y = 2/3x − 3

Step-by-step explanation:

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