Ask question

Ask question

All categories

2 years ago

15

Calculate the length of the circumference of a circle with a diameter of 14cm (2dp)

1 answer:

kondaur [170]2 years ago

3 0

C= 2 (pi) r

d= 14 cm

d= 2r

r= 7 cm

c= 2 (pi) (7cm)
c= 43.98

hope that helps

You might be interested in

Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar. She adds 5 groups. What number does she say?

Vaselesa [24]

5 that is the answer to your question

3 0

3 years ago

Read 2 more answers

The number of assists per match for the setter on your school's volleyball team has a mean of 58 and a standard deviation of 7.

serious [3.7K]

To get the number of standard deviation that 77 is from the mean, we get the z-score:
z-score is given by
z=(x-μ)/σ
where:
μ-mean
σ-standard deviation
thus the value of z from the information above is:
x=77
μ=58
σ=7
z=(77-58)/7=2.7143

3 0

3 years ago

Find the area of the image below

Usimov [2.4K]

41 because if you separate the parts the square and the triangle then you would have a square that is 16 sq in diameter and a triangle that is 25sq in diameter
<span />

4 0

2 years ago

Read 2 more answers

Two forces act on an object. The first Force has a magnitude of 400 Newtons and acts at an angle of 30 degrees as measured from

Sedaia [141]

ANSWER

Option D is correct

EXPLANATION

We resolve the forces into component forms.

$F_1 = 400 \cos(30) i + 400 \sin(30) j$

$F_1 = 200 \sqrt{3} i +200j$

Also the second is resolved to obtain,

$F_2= 280 \cos(135) i + 280 \sin(135) j.$

$F_2= - 140 \sqrt{2} i + 140 \sqrt{2} j$

To find the resultant vector, V, We add the corresponding components of the two forces to get:

$V=F_1+F_2$

$\implies \: V = (200 \sqrt{3} - 140 \sqrt{2} )i + (200 + 140 \sqrt{2})j$

The correct answer is D.

3 0

3 years ago

Is 4 meters bigger than 450 centimeters

Reptile [31]

No.

4 meters is 400 centimeters, so is smaller than 450 centimeters.

8 0

2 years ago

Read 2 more answers