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11111nata11111 [884]
2 years ago
8

Four grey regular polygons join together as shown in the diagram please answer part b

Mathematics
1 answer:
Wittaler [7]2 years ago
8 0

Answer:

a=72° b = 6°

Step-by-step explanation:

answer is in pic

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I need help on Area plz
nydimaria [60]

Answer:139 cm squared

Step-by-step explanation:

First separate it:

10x3

7x7

4x15

These are the 3 rectangles that make up this shape

Then multiply

10x3=30

7x7=49

4x15=60

Then add your answers

30+49+60=139cm squared

8 0
3 years ago
Please solve and i’ll give u brainliest
Usimov [2.4K]

Solution:

<u>Note that:</u>

  • Given angles: w + 8° and 48°
  • w + 8 + 48 = 180

<u>Solve for w in the equation "w + 8 + 48 = 180".</u>

  • => w + 8 + 48 = 180
  • => 56 + w = 180
  • => w = 180 - 56
  • => w = 124°

The value of w is 124.

6 0
2 years ago
Read 2 more answers
when the temperature is 68 F, the speed of sound in air is approximately 343 meters per second. Approximately how many kilometer
Digiron [165]

Hello!

Since we are given that the speed of sound in the air travels about 343 meters per second, we can multiply 343 meters per second by 5, and then we convert the meters to kilometers.

343 · 5 = 1715 meters per 5 seconds.

1000 meters are equal to 1 kilometer. So, we can divide 1715 by 1000 to convert meters to kilometers.

1715 / 1000 = 1.715

Therefore, the speed of sound in air is about 1.715 kilometers per 5 seconds.

6 0
3 years ago
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Which expression is equivalent to (x+4)^2
Inessa05 [86]

Answer:

(x+4)(x+4)

Step-by-step explanation:

5 0
3 years ago
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Enter the sum of numbers as a product of their GCF. 75 + 30 The sum of the numbers as a product of their GCF is
Oksanka [162]

Answer: 75+30 = 15 x 7

Step-by-step explanation:

The given expression is 75+30 (=105) which defines the sum of 75 and 30.

Prime factorization of 75 and 30 are as below:

75 = 5 x 5 x 3

30 = 5 x 3 x 2

GCD (75,30) = 5x 3 = 15  [Note: GCD = Greatest common divisor]

Consider 75+30 = (15 x 5) + (15 x 2)   [75 = 15 x 5 and 30= 15 x 2]

=  15 (5+2)   [taking 15 as common ]

= 15 x (7)

(=105)

So,  75+30 which is sum of the numbers and it is expressed as 15 x 7 which  a product of their GCF.

7 0
3 years ago
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