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3 years ago

PLEASE HELP BRANILIEST ANS TO WHOEVER DOES

Mathematics

1 answer:

OverLord2011 [107]3 years ago

8 0

It's an equiangular triangle

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Can someone please do 1,2 and 3 please

jok3333 [9.3K]

1. x=−1 or x=−5

2. x=9 or x=−15

3.x=3 or x=−3

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3 years ago

Graph x > -3x>−3x, is greater than, minus, 3.

antiseptic1488 [7]

It just is :). Ok ok

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3 years ago

Question 1

allochka39001 [22]

Answer:

Step-by-step explanation:

Perimeter of quarter circle = r + r + $\frac{1}{4}*2*\pi *r$

$= 10 + 10 + \frac{1}{4}*2*3.14*10\\\\= 10 + 10 + 3.14*5\\\\\\= 10 + 10 + 15.70\\\\= 35.70 cm$

2) d = 2*10 = 20 cm

Perimeter of semicircle = diameter + (1/2) * circumference of circle

$= 20 + \frac{1}{2}* 2*\pi *r\\\\= 20 + \frac{1}{2}*2*3.14*10\\\\= 20 + 3.14*10\\\\= 20 + 31.4\\\\= 51.40 cm$

3) Perimeter of three-quarter = r + r + (3/4)* circumference of circle

$= 10 + 10 + \frac{3}{4}*2*\pi *r\\\\= 10 + 10 + \frac{3}{4} * 2 * 3.14 * 10\\\\= 10 + 10 + 3 * 3.14 * 5\\\\= 10 + 10 + 47.1\\\\= 67.1 cm$

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3 years ago

What is 69 x 420 <br> Can you sub to me please?

Alex17521 [72]

Answer:

69x420=28,980

Step-by-step explanation:

i will

6 0

3 years ago

Read 2 more answers

Identify the surface area of the composite figure in terms of π.

Katena32 [7]

Answer:

78π m²

Step-by-step explanation:

The lateral area of the cylinder is ...

LA = 2πrh

LA = 2π(3 m)(8 m) = 48π m²

The lateral area of one cone is ...

LA = πrh . . . . where h is the slant height

LA = π(3 m)(5 m) = 15π m²

Then the total surface area of the figure is the area of the two cones plus that of the cylinder:

S = 2(cone area) + cylinder area

S = 2(15π m²) +(48π m²)

S = 78π m²

7 0

3 years ago