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vesna_86 [32]
3 years ago
12

PLZ HELP ASAP RADIANS AND ARC LENGTH

Mathematics
1 answer:
velikii [3]3 years ago
3 0

<span>The arc length by definition is given by:</span>

<span> S = R * theta</span>

<span> Where,</span>

<span> R: radio</span>

<span> Theta: central angle</span>

<span> Substituting values we have:</span>

<span> S = 10 * (3/2) pi</span>

<span> Rewriting we have:</span>

<span> S = 5 * (3) pi</span>

<span> S = 15pi</span>

<span> Answer:</span>

<span> The arc length is:</span>

<span> <span>S = 15pi</span></span>

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(2x+3)²=5.find the roots of the equation ​
bija089 [108]

Answer:

-2.61803398875, -0.38196601125

or

(-3±√5)/2

Step-by-step explanation:

First, expand. (2x+3)² = 4x²+12x+9=5

4x²+12x+4 = 0

Quadratic equations take the form ax²+bx+c = 0

In this case,

a = 4

b = 12

c = 4

You can solve with the equation x=(-b±√b²-4ac)/2a

Plug in:

(-12±√144-64)/8

(-12±√80)/8

(-12±√2^4×5)/8

(-12±4√5)/8

(-3±√5)/2

Final answer x = (-3±√5)/2

If you want decimal form: -2.61803398875, -0.38196601125

4 0
2 years ago
Jenny’s favorite store pays $45 for a new type of spring dress. The store’s percent of markup is 75%. After the markup, how much
nydimaria [60]

Answer:

78.75

Step-by-step explanation:

75% of 45 is  33.75

45+33.75 = 78.75

6 0
3 years ago
Justine correctly multipled the decials shown. How can the product be correct without three decial places 8.5 x 2.34 = 19.89
Sloan [31]

Answer:

The answer is "19.89".

Step-by-step explanation:

Given:

\to 8.5 \times 2.34

Solution:

     8.5 \times  2.34 \\-----\\

          340 \\

        255 \times

     \\ 17 0\times \times

-------\\

     19.890

\to 19.890 \approx 19.89

that's why the answer is correct.

6 0
3 years ago
Find the slope of the line that passes through the pair of points (4,5) (10,0)
vovangra [49]
Slope = difference in y / difference in x
slope = 5 - 0 / 4 - 10
slope = 5 / -6
slope = -.83333

6 0
3 years ago
Read 2 more answers
3. Jada has a coin jar containing n nickels and d dimes worth a total of $3.65. The
Ghella [55]

Answer:

C

Step-by-step explanation:

Here, we want to find an equation in the options which is same as the equation given in the question;

The equation we are testing against is;

0.05n + 0.1d = 3.65

What we can do here is divide through by 0.01

So we will have;

0.05n/0.01 + 0.1d/0.01 = 3.65/0.01

= 5n + 10d = 365

3 0
3 years ago
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