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3 years ago

-10(1+4n)-8 I NEED HELP PLSSSSSSS!!!

Mathematics

1 answer:

kirill [66]3 years ago

5 0

-10-40n-8
-18-40n
2(-9-20n)

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BRAINLIESTTT ASAP! PLEASE HELP ME :)

cupoosta [38]

See above information

I am joyous to assist you anytime.

* Since you are in a hurry, check out this link for more information:

brainly.com/question/12725478?utm_source=android&utm_medium=share&utm_campaign=question

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3 years ago

A lamp post with a height of 12 ft casts a shadow of 6 ft. A fire hydrant near it casts a shadow that is 1.5 ft long. How tall i

alex41 [277]

Answer:

3ft

Step-by-step explanation:

We are given that

Height of lamp, h=12ft

Height of shadow, l=6ft

Height of shadow of hydrant, l'=1.5ft

Let height of hydrant=h'

We have to find the height of fire hydrant.

All right triangles are similar

When two triangles are similar then, the ratio of their corresponding sides are equal.

Using the property

$\frac{h}{h'}=\frac{l}{l'}$

$\frac{12}{h'}=\frac{6}{1.5}$

$h'=\frac{12\times 1.5}{6}$

$h'=3$ ft

Hence, the height of fire hydrant=3 ft

3 0

3 years ago

GIVING BRAINIEST IF CORRECT!! Find the area of the shaded region.

Andreyy89

Area of Shaded triangle as a whole: 136cm^2
Area of Rectangle 1 : 20cm^2
Area of Rectangle 2 : 6cm ^ 2

Area of the shaded region :
136 - (20+6)
136 - (26)
110 cm^2

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2 years ago

Read 2 more answers

Prove this trigonometric identity sin 3x/sin x - cos 3x/cos x =2

Sveta_85 [38]

Step-by-step explanation:

LHS= sin 3x/sin x - cos 3x/cosx

Taking LCM,

=sin3xcosx- cos3xsinx

sinxcosx

=sin(3x-x)

sinxcosx

= 2sin2x

2sinxcosx

= 2sin2x

sin2x

= RHS.

Proved.

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3 years ago

Ito ang mabilis na pag lawak ng impluwensya ng kanluranin

Sophie [7]

Answer:

No one will answer your question beacuse your in brainly.com go to brainly.ph many filipinos will answer your question

Step-by-step explanation:

Go to settings then if you saw the change brainly.com click it then find pilipinas

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2 years ago