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2 years ago

What is the circumference of this circle, in centimeters? Use StartFraction 22 over 7 EndFraction for Pi.

Mathematics

2 answers:

WITCHER [35]2 years ago

5 0

Answer:

66 cm

Step-by-step explanation:

yaroslaw [1]2 years ago

3 0

Answer:

66 cm

Step-by-step explanation:

Diameter (d) = 21 cm

$C = \pi \: d = \frac{22}{7} \times 21 = 22 \times 3 = 66 \: cm$

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4.06 Question 2

Molodets [167]

Answer:

$\boxed{75 < x < 110 \: and \: 0 < y \leqslant 50}$

Step-by-step explanation:

x - the temperature

y - the number of people

the temperature is between 75 degrees and 110 degrees:

75 < x < 110

the room for 50 people:

0 < y ≤ 50

7 0

2 years ago

Read 2 more answers

Given the midpoint and one endpoint of a line segment, find the other endpoint.

neonofarm [45]

Answer:

(-12 , 2)

Step-by-step explanation:

GIVEN :-

Co-ordinates of one endpoint = (-4 , -10)
Co-ordinates of the midpoint = (-8 , -4)

TO FIND :-

Co-ordinates of another endpoint.

FACTS TO KNOW BEFORE SOLVING :-

Section Formula :-

Let AB be a line segment where co-ordinates of A = (x¹ , y¹) and co-ordinates of B = (x² , y²). Let P be the midpoint of AB . So , by using section formula , the co-ordinates of P =

$(x , y) = (\frac{x^2 + x^1}{2} ,\frac{y^2 + y^1}{2} )$

PROCEDURE :-

Let the co-ordinates of another endpoint be (x , y)

So ,

$(-8 , -4) = (\frac{-4 + x}{2} , \frac{-10 + y}{2} )$

First , lets solve for x.

$=> \frac{x - 4}{2} = -8$

$=> x - 4 = -8 \times 2 = -16$

$=> x = -16 + 4 = -12$

Now , lets solve for y.

$=> \frac{y - 10}{2} = -4$

$=> y - 10 = -4 \times 2 = -8$

$=> y = -8 + 10 = 2$

∴ The co-ordinates of another endpoint = (-12 , 2)

3 0

2 years ago

A rate simplified so that it has a denominator of 1

Yakvenalex [24]

This is called a unit rate.

5 0

2 years ago

What is the slope of y = -x+7

hichkok12 [17]

Answer: -1

Step-by-step explanation:

The equation is given in slope-intercept form. Slope-intercept form is y=mx+b, where m is slope, and b is y-intercept. Since m is slope, we know that it is -1.

7 0

2 years ago

Find the area of the irregular figure

umka21 [38]

Answer:

130

Step-by-step explanation:

square on top is 30

Big rectangle in middle is 75

Square on bottom is 25

8 0

2 years ago