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irakobra [83]
2 years ago
15

Can someone help me solve these problems?

Mathematics
1 answer:
Goshia [24]2 years ago
8 0

Answer:

Step-by-step explanation:

1) add all angles to 180

2) exterior angle = P + Q

i can add remaining ones also

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21.39 + 9=x ok this seems easy but I'm stuck it is supposed to= 30.39 how do you get that answer
Elodia [21]

Answer:

30.39

Step-by-step explanation:

ok, think of it like 21+9. That =s 30 right? so then add the .39 and you get 30.39.

3 0
2 years ago
Read 2 more answers
A house was valued at $292,000 . Over several years, the value increased by 8%, giving the house a new value.
kkurt [141]

Answer:

315,360 I had to assume you needed that number, 292000+8%=315360

8 0
3 years ago
PLEASE HELP ME I BEG
Kay [80]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

• 1 + cot²x = csc²x

Consider the left side

csc^{4} x - cot^{4} x

Factorise as a difference of squares

= (csc²x - cot²x)(csc²x + cot²x)

= (1 + cot²x - cot²x)(csc²x + cot²x)

= csc²x + cot²x

= csc²x + csc²x - 1

= 2csc²x - 1 = right side ⇒ verified




8 0
3 years ago
What happens to the mean of the data set shown below if the number 20 is added to the data set?
defon

Answer:

This shows that the mean increases by 2.95

Step-by-step explanation:

Assume the given data is 2, 5, 6, 8

Mean = 2 +5+6+8/4

Mean = 21/4

Mean = 5.25

If number 20 is added, the data becomes 2, 5, 6, 8, 20

New mean = 2 +5+6+8+20/4

New mean = 41/5

New mean = 8.2

Taking the difference in the mean:

Difference = 8.2 - 5.25

Difference = 2.95

This shows that the mean increases by 2.95

<em>NB: The data used was assumed since we are not given any data in question</em>

<em></em>

4 0
3 years ago
Which of the following is equivalent to log 7^ 50 rounded to three decimal places?
otez555 [7]
7^50
= 1.798 × 10^42

i am a mathematics teacher. if anything to ask please pm me
4 0
3 years ago
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