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OLEGan [10]
3 years ago
7

What is the length of the arc that subtends a central angle of 139°, for a circle with a radius of 7.5 centimeters? Use 3.14 for

π when necessary
Mathematics
2 answers:
eduard3 years ago
7 0
18.19 139/360=x/diameter 
ANTONII [103]3 years ago
7 0

Answer:

18.18583 cm

Step-by-step explanation:

As per circle arc theorem we have

arc length s = Central angle* perimeter of the circle / 360

Here given that radius = 7.5 cm

Hence circumference = 2 (3.14)(7.5) = 47.1 cm

Central angle / 360 = 139/360 = 0.3861111

Hence arc length = 0.3861111*47.1 = 18.18583 cm

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What is the equation of the line that passes through the points (-4,1) and (4-1)
Nitella [24]

Answer:

y=-1/4x

Step-by-step explanation:

METHOD 1: The basic slope-intercept equation is <em>y=ax+b</em>. To achieve the slope with two points, this is the equation:

m = \frac{y2-y1}{x2-x1}

All you have to do is insert points (-4, 1) and (4, -1) into their corresponding locations.

m = \frac{(-1)-1}{4-(-4)}

With this equation, you will be able to find the slope. Then you can simply graph it to connect the two dots.

METHOD 2: Simply connect the two dots with a straight line (use a ruler or something with a straight edge.) Then count how many spaces up/down and left/right. If the line goes from top to bottom from left to right, it is a negative slope (hence, the -1/4.)

7 0
3 years ago
Help please god help
oksian1 [2.3K]
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4 0
3 years ago
I WILL GIVE BRAINLIEST TO THE FIRST TO ANSWER
dimaraw [331]

Answer: Linear

Step-by-step explanation: A linear function can have different rates of change over different intervals.

(I don't know if this is correct, but this is my understanding of it.)

5 0
3 years ago
Trey made pasta in the shape of a square. He draws two lines to cut the pasta into smaller pieces. Which have 12 sides and 12 ve
Aleks [24]
12*12 =24........................
7 0
3 years ago
Read 2 more answers
Solving inequalities for word problems:
zepelin [54]

For this case we have to:

x: Let the variable representing the unknown number

We algebraically rewrite the given expression:

Twice a number plus 10, is represented as:2x + 10

Three times that number less 4. is represented as:

3x-4

Thus, the complete expression is:

2x + 10> 3x-4

Subtracting 3x from both sides of the inequality:

2x-3x + 10> -4\\-x + 10> -4

Subtracting 10 from both sides of the inequality:

-x> -4-10

Equal signs are added and the same sign is placed:

-x> -14

We multiply by -1 on both sides, taking into account that the sense of inequality changes:

x

The solution is given by all values of "x" less than 14.

Answer:

x

5 0
3 years ago
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