3 years ago

Solve kx -2 = 7 for x

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

7 0

Answer:X=9 i believe.

Step-by-step explanation:

add 2 and 7

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A central angle theta in a circle of radius 7 m is subtended by an arc of length 8 m. Find the measure of theta in degrees. (Rou

gogolik [260]

Answer: In degrees , The measure of $\theta=65.5^{\circ}$

In radians , the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

Step-by-step explanation:

We know that the formula for length of arc is given by :-

$l=\theta r$

, where $\theta$ = Central angle subtended by arc.

r= radius of the circle.

As per given , we have

Radius of circle : r=7 m

Length of arc : l= 8 m

Substitute these values in the above formula , we get

$8=\theta (7)\\\\\Rightarrow\ \theta =\dfrac{8}{7}\text{ radians}$

Hence, the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

To convert it into degrees we multiply it with $\dfrac{180^{\circ}}{\pi}$

The measure of $\theta =\dfrac{8}{7}\times\dfrac{180^{\circ}}{\pi}$

$=(\dfrac{8\times180}{7\times3.14})^{\circ}=65.5141037307^{\circ}$

$\approx65.5^{\circ}$

Hence, the measure of $\theta=65.5^{\circ}$

8 0

3 years ago

Please help !!!!!!!!!! Will mark Brianliest answer !!!!!!!

ivanzaharov [21]

The answer is most likely (c).

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3 years ago

WILL MARK YOU BRAINLIEST

Juli2301 [7.4K]

We know that the sum of all angle measures in a trapezoid is 360* (* means degrees)

Therefore we can construct the equation
(X+28)+(x)+(4x-14)+(4x-14)= 360

Now add like terms

10x = 360

And divide by the coefficient of X (aka 10)

X= 36

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3 years ago

At noon jolene began walking at 2 miles per hour. At 1:00 pm Carly started following the same route walking at 3 miles per hour.

m_a_m_a [10]

My best guess is 3:00?

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3 years ago

N/8 -3 = 16. <br> A student got n=5 is the student correct yes or no<br> 50 points I guess

amid [387]

thank you for the points

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3 years ago