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2 years ago

Find the value of y. y = 5 y = 10 y = 47.5 y = 60

Mathematics

1 answer:

Citrus2011 [14]2 years ago

8 0

Answer:

y = 5

Step-by-step explanation:

All the sides are equal, so all the angles are equal

The angles of a triangle add to 180

180/3 = 60

Each angle is 60 degrees

8y+20 = 60

Subtract 20 from each side

8y+20-20 = 60-20

8y= 40

Divide by 8

8y/8 = 40/8

y = 5

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If f(x) and it’s inverse function, f^-1(x), are, both plotted on the same coordinate plane, what is their point of intersection

Korolek [52]

Answer:

Step-by-step explanation:

Hello,

there is not always an intersection point

let's take the example of on the appropriate domain

$f(x)=e^x \ \ \ f^{-1}(x)=ln(x)$

there is no intersection point

if there is one it means that the point (x,f(x)) and the point (x, $f^{-1}(x)$ ) is the same so that have to solve

$f(x)=f^{-1}(x)$

for instance if we take

$f(x)=x^2 \ \ \ f^{-1}(x)=\sqrt{x} \ \ \ for \ x >= 0$

intersection point are for x >= 0

$x^2=\sqrt{x} x^4=xx^3=1 \ or \ x=0 x = 1 \ or \ x=0$

hope this helps

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3 years ago

Use the net to find the approximate surface area of the cylinder to the nearest square meter.

lyudmila [28]

Answer: D

Step-by-step explanation:

Formula= 2piRh +2piR^2

2pi*7*11 + 2pi*49 = 791.68 or 792

4 0

3 years ago

Read 2 more answers

A heart beat takes 0.8 second ,how many seconds is this writtin as a fraction

NeX [460]

The answer to your Question is 8/10 but if you simplify it the answer is 4/5.

5 0

3 years ago

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Frogs have been breeding like flies at the Enormous State University (ESU) campus! Each year, the pledge class of the Epsilon De

GuDViN [60]

This year is yer number 2 , so t = 2
which means that the next year will be t = 3

So, Epsilon-delta should order :
42000 (1.3 ^ (3/2))
= 62,254 Tags

Hope this helps

7 0

2 years ago

PLEASE HELP I HAVE 5 MIN TO TURN THIS IN!!!!

LUCKY_DIMON [66]

Answer:

3- False,
4- True

Step-by-step explanation:

<h3>Garden A</h3>

<u>Rectangle with sides</u>

Width ⇒ 2x - 3 feet
Length ⇒ 5(2x - 3) = 10x - 15

<u>Perimeter is</u>

2(w + l) = 2( 2x - 3 + 10x - 15) = 24x - 36

<h3>Garden B</h3>

<u>Triangle with sides</u>

5x + 5, 4x + 2, 8x - 8

<u>Perimeter is</u>

5x + 5 + 4x + 2 + 8x - 8 = 17x - 1

<h3>Statement 3</h3>

<u>The difference in perimeters is the difference is fencing:</u>

24x - 36 - (17x - 1) = 24x - 17x - 36 + 1 = 7x - 35

Since it is different from 7x - 37 the statement is FALSE

<h3>Statement 4</h3>

Garden A is surrounded by a path of 2.5 ft wide

It will have the perimeter added by 2.5*2*4 = 20 ft as each side is extended by 2*2.5 ft = 5ft

<u>So the perimeter is going to be:</u>

24x - 36 + 20 =
24x - 16

This statement is TRUE

7 0

3 years ago