3 years ago

Help find the value of X

Mathematics

1 answer:

snow_tiger [21]3 years ago

4 0

7. 120
8. 30
9. 45
10. 15
11. 105
12. 140
13. 65
14. 100
15. 60

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A number increased by fifteen is nineteen. A number increased by fifteen is nineteen.

elixir [45]

Answer:

the number is 4

Step-by-step explanation:

we can write this as

x + 15 = 19

now we transpose

x= 19-15

x= 4

5 0

2 years ago

CosA×cos2A+sinA×sin2A=cos (2A-A)

Aleksandr-060686 [28]

Answer:

csc

, as desired!

Step-by-step explanation:

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2 years ago

A 150 cm pendulum swings through an arc which measured 100pi cm. In exact radians, through what angle does it swing?

choli [55]

Answer:

Pendulum will swing by an angle 0.666π

Step-by-step explanation:

We have given arc = $100\pi cm$

And length of the pendulum l = 150 cm

Length of the pendulum will be equal to radius of the pendulum so r = 150 cm

Arc is given by $arc=radius\times angle$

So $100\pi =150\times\times \Theta$

$\Theta =0.666\pi$

So pendulum will swing by an angle 0.666π

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2 years ago

Solve the

jekas [21]

Answer:

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Unequal

Step-by-step explanation:

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2 years ago

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Find the area of the region under the graph of the function f on the interval [1, 8].

nadezda [96]

F(x)=3/x it’s 6x(7) now can I get thanks

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2 years ago