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Sphinxa [80]
3 years ago
15

The radius of a circle is 7m , find its area in terms of π

Mathematics
2 answers:
dangina [55]3 years ago
8 0

Answer:

49π

Step-by-step explanation:

A = π r^{2}

A = π 7^{2}

A = 49π

For the one you put in the comment...

The radius of a circle is 19cm find its area in terms of π

A = π r^{2}

A = π 19^{2}

A = 361π

For the other one you put in the comment

The radius of a circle is 4 cm find its area in terms of π

A = π r^{2}

A = π 4^{2}

A = 16π

For the other one you put in the comment

The radius of a circle is 20 cm find its area in terms of π

A = π r^{2}

A = π 20^{2}

A = 400π

Hope this helped!

Have a supercalifragilisticexpialidocious day!

viktelen [127]3 years ago
3 0

HOPE THIS HELPS

CAN U PLEASE GIVE ME BRAINLIEST

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Maths watch help me please thank you
Dovator [93]

Answer:

71 %

Step-by-step explanation:

Paper 1 :

65% of 120 = 0.65 X 120 = 78

Paper 2 :

80% of 80 = 0.8 X 80 = 64

Total Percentage:

Add the two scores 78 + 64 = 142

Add the what it was out of 120 + 80 = 200

Use (Score / Total marks available) X 100

(142 / 200) X 100 = 71

3 0
3 years ago
Vector u = <11, 12>, v = <-16, 6>, and w = <4, -5>. Match each vector operation with its resultant vector expr
MAVERICK [17]

3u - 2v + w gives the resultant vector as; <49, 19>

8u - 6v gives the resultant vector as; <184, 60>

7v - 4w gives the resultant vector as; <61, 104>

u - 5w gives the resultant vector as; <-9, 37>

<h3>How to find the resultant of vectors?</h3>

We are given the vectors;

u = 11i + 12j

v = -16i + 6j

w = 4i - 5j

1) 3u - 2v + w gives the resultant vector as;

3(11i + 12j) - 2(-16i + 6j) + 4i - 5j

⇒ 33i + 36j + 32i - 12j + 4i - 5j

⇒ 49i + 19j

⇒ <49, 19>

2) 8u - 6v gives the resultant vector as;

8(11i + 12j) - 6(-16i + 6j)

⇒ 88i + 96j + 96i - 36j

⇒ 184i + 60j

3) 7v - 4w gives the resultant vector as;

7(11i + 12j) - 4(4i - 5j)

⇒ 77i + 84j - 16i + 20j

⇒ 61i + 104j

4) u - 5w gives the resultant vector as;

11i + 12j - 5(4i - 5j)

11i + 12j - 20i + 25j

-9i + 37j

Read more about Resultant Vectors at; brainly.com/question/110151

#SPJ1

5 0
1 year ago
Someone please help me!!!!!!!
Mumz [18]
(4 - -2) / (9 - 5) = 6/4 or 3/2
7 0
3 years ago
Alex originally paid $5200 for her car 1 year ago. The value of her car would is $4,420. What is the percent of decrease in the
horsena [70]

See the picture for the answer.



8 0
3 years ago
How do you solve 3^(4x) = 3^(5-x)?
trasher [3.6K]
3^(4x) = 3^(5 - x)
4x = 5 - x
4x + x = 5
5x = 5
x = 5/5 = 1
x = 1
3 0
3 years ago
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