All categories

3 years ago

PLEASE HELP !! ILL GIVE BRAINLIEST !!

Mathematics

2 answers:

ra1l [238]3 years ago

6 0

Answer:

2nd one ( Efc & dcf ) & 4th one (Bcf & gfc) .

Step-by-step explanation:

Hope it helps .

zhenek [66]3 years ago

3 0

Answer:

BCF and GFC

EFC and DCF

because they are alternate

You might be interested in

What am i supposed to do here

never [62]

Answer:

idk

Step-by-step explanation:

5 0

3 years ago

The Goodsmell perfume producing company has a new line of perfume and is designing a new bottle for it. Because of the expense o

Snezhnost [94]

Answer:

Dimensions of the bottle

x (radius of the base ) = 3,99 cm

h (heigh of the bottle ) = 3,99 cm

Surface area = 149,99 cm²

Volume of the bottle = 199,45 cm³

Step-by-step explanation:

The bottle volume must be V(b) = 100 ml or V(b) = 100 cm³

The shape of the bottle is cylindrical

Surface area of bottle is

S = surface area of the base + lateral area

Area of the base = π*x ² where x is radius of circle

Lateral area is 2*π*x*h where h is the heigh of the bottle

V(b) = π* x²*h (1)

π*x² + 2*π*x*h < 150 cm² we work with the limit 150

π*x² + 2*π*x*h = 150

h = (150 - π*x²) /2*x*π

Plugging that value in equation (1)

V(x) = π*x² * (150 - π*x²) /2*x*π ⇒ V(x) = 150*π*x²/2*x*π - π²*x⁴/2*x*π

V(x) = 75*x - π*x³/2

Taking derivatives on both sides of the equation

V´(x) = 75 - 3*π*x²/2

V´(x) = 0 75 - 3*π*x² /2 = 0

x² = 75*2 /3*π ⇒ x² = 15,92 ⇒ x = 3,99 cm

And h = ( 150 -π*x² )/2*π*x

h = ( 150 - 49,98 )/25,05

h = 3,99 cm

Dimensions of the bottle

x (radius of the base ) = 3,99 cm

h (heigh of the bottle ) = 3,99 cm

Surface area = 149,99 cm²

Volume of the bottle = 199,45 cm³

4 0

3 years ago

There are 1,000 residents of a town in Year 1. That number increases by 1% each year.

S_A_V [24]

Answer:

Part A) $y=1,000(1.01^{x})$

Part B) $1,105\ persons$

Step-by-step explanation:

Part A) What is the explicit rule for the number of residents

we know that

In this problem we have a exponential function of the form

$y=a(b^{x})$

where

a is the initial value

b is the base

r is the rate

(1+r)=b

Let

y ----> the number of residents

x is the time in years

we have

a=1,000 residents

r=1%=0.01

b=(1+0.01)=1.01

substitute

$y=1,000(1.01^{x})$

Part B) How many residents will there be in the town in Year 10?

For x=10 years

substitute in the equation

$y=1,000(1.01^{10})$

$y=1,105\ persons$

6 0

3 years ago

Read 2 more answers

Solve the following inequality 9x−2>43

MrRissso [65]

Answer: x > 5

Explanation: First we want to look at our variable and ask ourselves what's happening to it. Since 2 is being subtracted from 9x, we always undo addition and subtraction first so we add 2 to both sides.

That gives us 9x > 45.

Now we need to undo multiplication and division. Since 9 is being multiplied by x, to get x by itself, we need to divide by 9 on the left side of the inequality. If we divide by 9 on the left side, we must also divide by 9 on the right side.

This leaves us with x > 5 which is the solution to this inequality.

8 0

3 years ago

Read 2 more answers

Pls help rlly easy xx

liberstina [14]

Answer:

divide both sides by 5c

$\frac{p + q}{5c}$

7 0

3 years ago

Read 2 more answers