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3 years ago

Which of the equations below represents à line perpendicular to the y-axis?

Mathematics

1 answer:

mihalych1998 [28]3 years ago

5 0

Answer:

Its x=6

Step-by-step explanation:

I graphed it on mathaway

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Solve the proportion using cross products. Round to the nearest hundredth if necessary. 0.5/5 = 0.03/n

kodGreya [7K]

$\dfrac{0.5}{5}=\dfrac{0.03}{n}\ \ \ |\text{cross multiply}\\\\0.5\cdot n=5\cdot0.03\\\\0.5n=0.15\ \ \ |\cdot2\\\\n=0.3$

7 0

3 years ago

Read 2 more answers

Which answer is the explicit it rule for the sequence 12.5, 11,9.5,8,6.5,5

Y_Kistochka [10]

<h3>Answer:</h3>

D. an = 14 - 1.5n

<h3>Step-by-step explanation:</h3>

Selection D is the only one that works to give a1 = 12.5.

4 0

4 years ago

max bought two deli sandwich rolls measuring 18 inches and 30 inches. He wants them to be cut into equal sections that are as lo

saul85 [17]

The answer is 6 inch sandwiches. You will have 7 sandwiches.

3 0

4 years ago

Find the exact values of the solutions in the interval 0 <= x < 2pi of the following equations without using a calculator.

Alekssandra [29.7K]

Answer:

a) $x_{1} = \frac{\pi}{3}\,rad$ , $x_{2} = \frac{5\pi}{3}\,rad$ , b) $x_{1} = \frac{\pi}{4}\,rad$ , $x_{2} = \frac{3\pi}{4}\,rad$ , $x_{3} = \frac{5\pi}{4}\,rad$ , $x_{4} = \frac{7\pi}{4} \,rad$

Step-by-step explanation:

a) We proceed to solve the expression by algebraic and trigonometrical means:

1) $3\cdot \sec x + 2 = 8$

2) $3\cdot \sec x = 6$

3) $\sec x = 2$

4) $\frac{1}{\cos x} = 2$

5) $\cos x = \frac{1}{2}$

6) $x = \cos^{-1} \frac{1}{2}$

Cosine has positive values in first and fourth quadrants. Then, we have the following two solutions:

$x_{1} = \frac{\pi}{3}\,rad$ , $x_{2} = \frac{5\pi}{3}\,rad$

b) We proceed to solve the expression by algebraic and trigonometrical means:

1) $6\cdot \cos^{2} x = 3$

2) $\cos^{2} x = \frac{1}{2}$

3) $\cos x = \pm\frac{\sqrt{2}}{2}$

4) $x = \cos^{-1} \left(\pm \frac{\sqrt {2}}{2} \right)$

There is one solution for each quadrant. That is to say:

$x_{1} = \frac{\pi}{4}\,rad$ , $x_{2} = \frac{3\pi}{4}\,rad$ , $x_{3} = \frac{5\pi}{4}\,rad$ , $x_{4} = \frac{7\pi}{4} \,rad$

3 0

3 years ago

Find the value of x that makes m ||

marusya05 [52]

3x = 2x + 20
3x - 2x = 20
x = 20

4 0

3 years ago