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Yuki888 [10]
3 years ago
5

(5,2) (8,2), (8,5) and (?,?)

Mathematics
1 answer:
Luba_88 [7]3 years ago
6 0
<h2>Answer:</h2><h2>(5,5)</h2><h2 /><h2>Hope this helps!!</h2><h2></h2>

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A wave has frequency of 10 Hz and a speed of 30 m/s. What is the wavelength of the<br>wave?​
ladessa [460]

Answer:

3

Step-by-step explanation:

Wavelength is usually denoted as letter lambda (λ); it is equal to the speed (v) of a wave train in a medium divided by its frequency (f): λ = v/f. Waves of different wavelengths.

formula: λ = v/f

solution: λ= 30m/s / 10Hz

= 3

8 0
3 years ago
Solve 3x² + 4x = 2. (2 points)
uysha [10]

Answer:

Step-by-step explanation:

As it is a second order equation, it means that it has two possible answers and they are x_1 and x_2.

The famous quadratic formula for solving any second order equation is the following:

x_{1} = \frac{-b + \sqrt{b^2 - 4 ac}}{2a}\\x_{2}=\frac{-b - \sqrt{b^2 - 4 ac}}{2a}

Where a is the coefficient of x^2, b is the coefficient of x, and c is the free term. In other words,

a = 3\\b=4\\c=-2

as the equation should be in the following form:

a x^2 + bx+c = 0

Therefore the possible answer should be the following,

\frac{-4 + \sqrt{4^2 - 4*3*(-2)}}{2*3}=\frac{-4 +\sqrt{16 + 24}}{6} =\frac{-4 + \sqrt{40}}{6}=\\ \frac{-4 + \sqrt{4*10}}{6} = \frac{-4 + 2\sqrt{10}}{6}\frac{2*(-2 + \sqrt{10})}{2*3} = \frac{-2 + \sqrt{10}}{3}

by dividing the numerator and denominator by 2, we can deduce the following,

6 0
2 years ago
What feature do plants have that provide structure and form?
Nostrana [21]
It should be a.), all plant cells have a cell wall made of cellulose, which acts as exoskeleton and makes them so stable. However on a bigger level this plant cells can also form cellulose fibers, so that c.) is not completely false :)
8 0
3 years ago
I hope someone can help me here please don't answer nonsense!​
pshichka [43]

1) By the inscribed angle theorem, m\angle B=\frac{1}[2}(60^\circ})=\boxed{30^{\circ}}

2) By the inscribed angle theorem, arc RT measures twice 63 degrees, or 126 degrees.

3 0
2 years ago
Solve for y y/8 = 4
Bess [88]

Answer:

32

Step-by-step explanation:

Multiply both sides by 8.

y/8 = 4

y/8 × 8 = 4 × 8

y = 32

4 0
2 years ago
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