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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics

1 answer:

disa [49]3 years ago

7 0

Answer: $\bold{(B)\ a_n=a_{n-1}+4.3\ \text{where}\ a_1=-22.7}$

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

$\text{Given the sequence -22.7, -18.4, -14.1, -9.8, -5.5, the difference (d) is +4.3}\\\text{The general form of the recursive rule for an arithmetic sequence is:}\\a_n=a_{n-1}+d\\\text{With the information provided, the recursive rule is:}\ a_n=a_{n-1}+4.3.\\\text{The first term of the sequence}\ (a_1)\ \text{is 22.7}$

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220 squared units

Step-by-step explanation:

first, find the area of the rectangle by multiplying 8 by 20. Then, fin the area of the triangle by multiplying 6 by 20 and then dividing the result by 2.

8*20=160

6*20=120

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3 years ago

Draw a model of square root of 12 using perfect squares

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Answer:

The answer is " $\sqrt{12}$ is not a perfect square".

Step-by-step explanation:

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A circle has a central angle measuring startfraction 7 pi over 6 endfraction radians that intersects an arc of length 18 cm. wha

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The radius of this circle is (B) 4.9 cm.

<h3>To find the radius of the circle:</h3>

To solve this problem, we need to, first of all, convert the angle from radians to degrees.

data;

length of an arc = 18cm
angle = 7/6π rads
π= 3.14

$\frac{7\pi }{6rads} =210^{0}$

Length of an Arc:

The formula for the length of an arc is given:

$l_{arc} =$ θ/360 × $2\pi r$

Let's substitute the values and solve:

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From the calculations above, the radius of this circle is 4.9cm.

Therefore, the radius of this circle is (B) 4.9 cm.

Know more about radius here:

brainly.com/question/24375372

#SPJ4

Complete question

A circle has a central angle measuring 7pi/6 radians that intersects an arc of length 18 cm. What is the length of the radius of the circle? Round your answer to the nearest tenth. Use 3.14 for pi.

(A) 3.7 cm

(B) 4.9 cm

(D) 15.4 cm

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2 years ago