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4 years ago

Find the circumference of circle whose diameter is 2.5 m Please help me

Mathematics

2 answers:

Ad libitum [116K]4 years ago

8 0

Answer:

7.8539 m

Step-by-step explanation:

Multiply 2.5 by 3.14159

12345 [234]4 years ago

5 0

Answer:

7.85 m

Step-by-step explanation:

Circumference is 2πr.

The radius (r) is half of the diameter, but multiplying r by 2 is the same as just using the diameter in this formula, so:

2.5π

When you multiply you get 7.85 to the nearest hundredth.

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Please give me the answer

Lunna [17]

Answer:

37°

Step-by-step explanation:

As we know the sum of angles of a triangle is 180 degrees.

Therefore,

angle A + angle B + angle C = 180°

In the given picture two angles are given and we have to find out the third angle.

x° + 45° + 98° = 180°

x° + 143° = 180°

x° = 180° - 143°

x° = 37°

The value of x in the triangle shown is 37°.

3 0

3 years ago

The graph of a line on a coordinate plane has a slope of 1/2 and passes through the point (4, -3). Which equation describes the

makkiz [27]

Answer:

$\boxed {\boxed {\sf y= \frac{1}{2}x-5 }}$

Step-by-step explanation:

Since we are given a point and a slope, we should use the point-slope equation.

$y-y_1=m(x-x_1)$

where m is the slope and (x₁, y₁) is the point the line passes through.

We are given the slope of 1/2 and the point (4, -3). Therefore:

$m= \frac{1}{2} \\x_1= 4\\y_1= -3$

Substitute the values into the formula.

$y--3= \frac{1}{2} (x-4)$

$y+ 3= \frac{1}{2} (x-4)$

Distribute the 1/2. Multiply each term inside the parentheses by 1/2.

$y+3= \frac{1}{2} *x + \frac{1}{2} * -4$

$y+3=\frac{1}{2}x-2$

We want to the equation of the line in slope-intercept form or y=mx+b. We need to isolate y. 3 is being added and the inverse of addition is subtraction. Subtract 3 from both sides of the equation.

$y+3-3=\frac{1}{2}x-2-3$

$y=\frac{1}{2}x-2-3\\y= \frac{1}{2}x-5$

The equation of the line is y=1/2x-5

6 0

3 years ago

In the United States, 43% of people wear a seat belt while driving. If two people are chosen at random, what is the probability

Tanzania [10]

The answer can be any if them but id choose b

8 0

3 years ago

Read 2 more answers

Geometric proofs fill in the blanks i really need help plz

Mama L [17]

2. Def. angle bisector
3. Angle Addition Postulate
4. Addition Property
5. Multiplication Property
6. Angle Bisector Theorem

3 0

3 years ago

Match the correct y=mx+b equation to the graph: pls show work/explanation!

wel

Answer:

$\displaystyle y=\frac{1}{3}x-2$

$\displaystyle m=\frac{1}{3},\ b=-2$

Step-by-step explanation:

Equation of a line

We only need two points through which it passes to define the equation of a line. The graph provided in the question shows two clear points to pick: (0,-2) and (3,-1)

Now we wet up the equation of the line by using the formula

$\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$