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2 years ago

PLS HELP! TWO MATH QUESTIONS

2 answers:

5 0

There is a formula that relates the arc length of a circle of radius, r, to the central angle ,θ in radians. S = r(θ) where S is arc length, r is radius, and θ is the central angle.

So substituting into the formula for the first question we have: 5.4=6(θ) and solving for θ we get 0.9

Now for the second question substituting into the formula we have:
S = 6( $\frac{3 \pi }{2}$ )

Solving this for S we find the arc length to be 9π

Ksivusya [100]2 years ago

3 0

Yeah I'm not sure but I think it's 6

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A and B are supplementary angles. If m A = (x + 15)° and m

scoray [572]

Answer:

76 degrees

Step-by-step explanation:

We know that supplementary angles equal 180 degrees. So, set up the equations:

$180=(x+15)+(x-13)\\$

$180=(2x+2)\\$

$178=2x$

$x=89\\$

Then, you just plug 89 back into ZB, and simplify:

$(89-13)\\$

$=76$

So, the measurement of angle ZB is 76 degrees.

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2 years ago

Examine the graph.

ss7ja [257]

The correct answers for this question are these:
<span>2 < x < 3
and
</span><span>−3 < x < -2

As you can see in the given graph, there are two intervals that the line is increasing. Increasing graph is when the line rises from left to right. In the graph, the first increase in graph is -3 < x < -2 and the other one is at the last part 2 < x < 3
</span>

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3 years ago

What are the coordinates of the vertex for f(x) = 3x2 + 6x + 3?

Art [367]

The vertex is (-1,0). you can find this after putting the equation in standard form by completing the square.

5 0

2 years ago

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Explain what the Diameter is and how is the radius related to it.

horrorfan [7]

Answer:

The diameter is any straight line that passes through the center of the circle, which endpoints can lie on. The radius is half the diameter. They help us find the circumference of a circle

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2 years ago

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what is the volume of the rectangular prisms with a length of 1 5/8, a width of 3/8, and a height of 3in

SVEN [57.7K]

Answer:

To find the volume of a cube one must multiply all three dimensions together. Here we know two of the dimensions and the volume but not the third dimension. First I multipl together to two known dimensions: 3/4 x 1/2 = 3/8. Next I divide the volume by this answer by using the reciprocal of 3/8 and multipling. 21/32 x 8/3 = 7/4 by cancelling the 32 with the 8 and the 21 with the 3. Now 7/4 must be changed into a mixed number. Divide the numerator by the denominator and write the remainder as a fraction. 7/4 = 1 3/4.

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2 years ago