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uysha [10]
3 years ago
11

Find the unknown of the following

Mathematics
1 answer:
abruzzese [7]3 years ago
8 0

Step-by-step explanation:

For 4.

4b + 2b + 3b = 180°< Sum of angles of triangle >

9b = 180°

b = 180° / 9

b = 20°

4b = 4* 20° = 80°

2b = 2* 20° = 40°

3b = 3 * 20° = 60°

For 5.

x = 64° + 45° <Exterior angle of a triangle is equal to the sum of two opposite interior angles>

x = 109°

Hope it helps :)

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Simplify please (10 points)
Ludmilka [50]

Answer:

The answer is 4th point

Step-by-step explanation:

√5(10 - 4√2)

= (√5×10)-(√5×4√2)

= 10√5 - 4√10

7 0
3 years ago
Read 2 more answers
What is the exact circumference of a circle with a diameter of 40 feet?
Irina-Kira [14]

Answer:

The answer is

<h2>126 feet</h2>

Step-by-step explanation:

Circumference of a circle is πd

Where d is the diameter

From the question

d = 40 feet

Circumference of the circle is

40π

= 125.66

= 126 feet to the nearest whole number

Hope this helps you

7 0
3 years ago
Question 1
Shkiper50 [21]

Answer:

Let's begin with a 30°-60°-90° triangle. A 30°-60°-90° triangle with a hypotenuse of 2 um

Step-by-step explanation:

6 0
2 years ago
How many times does 0.75 fit into 9 wholly<br>I need help
nexus9112 [7]

Answer:

12. 9÷0.75.

Thank you. please mark me the braniliest.

3 0
1 year ago
PLEASE HELP ASAP BRAINLIEST
Pachacha [2.7K]

Hi there!

The term "difference" os the result of subtracting one number from another.

So in other terms you want to know what would be the result of subtracting -4.6 from 13.5 :

13.5 - -4.6 = Difference between the two temperatures


Two minus signs turn into a positive sign so :

13.5 - -4.6 =

13.5 + 4.6 =

18.1 = Difference between the two temperatures


Your answer is : The difference between the two temperatures is 18.1


There you go! I really hope this helped, if there's anything just let me know! :)

3 0
3 years ago
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