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3 years ago

12

Can someone plz help me solved this problem I need the other line which is X! I already have line y but I need X plz someone hel

p i need help!

1 answer:

sweet [91]3 years ago

6 0

Answer: see below

<u>Step-by-step explanation:</u>

Inverse is when you swap the x's and y's.

The Slope-Intercept form is $y=\dfrac{1}{5}x-\dfrac{3}{5}$ which isn't convenient to graph.

So take the points from the original equation (-1, -2) & (0, 3) and switch the x's and y's to get the points (-2, -1) & (3, 0).

Draw a line through points (-2, -1) and (3, 0) to sketch the graph of the inverse.

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2. In Australia, there are approximately 100 species of venomous snakes, but only about 12 have a deadly

Savatey [412]

Answer:

The required probability is 0.3717.

Step-by-step explanation:

Consider the provided information.

There are approximately 100 species of venomous snakes, but only about 12 have a deadly bite.

zoo randomly selects one snake from each of five different species to show visitors.

The total number of ways to select 5 different species out of 100 are:

$^{100}C_5=\frac{100!}{5!95!}=75287520$

We need to find the probability that exactly one of the five snakes shown is deadly.

That means out of 12 deadly bite we need to select only 1.

Thus, the number of ways are:

$^{12}C_1\times ^{88}C_4=\frac{12!}{11!}\cdot\frac{88!}{4!84!}=27982680$

Hence, the required probability is:

$\frac{27982680}{75287520}\approx0.3717$

The required probability is 0.3717.

4 0

3 years ago

Which shows the dimensions of two rectangular prisms that have volumes of 240 ft3 but different surface areas?

bulgar [2K]

Calculate the volume and surface areas of both rectangular prisms for each option.

A:

Rectangular Prism #1
$\sf V=lwh$
$\sf V=(8)(5)(6)=240~ft^3$

$\sf A=2((8)(5)+(6)(5)+(6)(8))$
$\sf A=236~ft^2$

Rectangular Prism #2
$\sf V=lwh$
$\sf V=(5)(6)(8)=240~ft^3$

$\sf A=2((5)(6)+(8)(6)+(8)(5))$
$\sf A=236~ft^2$

This is incorrect, they have the same volume of 240 cubic feet and the same surface areas.

B:

Rectangular Prism #1
$\sf V=lwh$
$\sf V=(8)(5)(6)=240~ft^3$

$\sf A=2(wl+hl+hw)$
$\sf A=2((8)(5)+(6)(5)+(6)(8))$
$\sf A=236~ft^2$

Rectangular Prism #2
$\sf V=lwh$
$\sf V=(10)(8)(3)=240~ft^3$

$\sf A=2(wl+hl+hw)$
$\sf A=2((10)(8)+(3)(8)+(3)(10))$
$\sf A=268~ft^2$

$\boxed{\sf Correct~Answer}$ : Both have the same volume of 240 cubic feet, but different surface areas.

C:

Rectangular Prism #1
$\sf V=lwh$
$\sf V=(15)(8)(2)=240~ft^3$

$\sf A=2(wl+hl+hw)$
$\sf A=2((15)(8)+(2)(8)+(2)(15))$
$\sf A=332~ft^2$

Rectangular Prism #2
$\sf V=lwh$
$\sf V=(6)(4)(15)=360~ft^3$

$\sf A=2(wl+hl+hw)$
$\sf A=2((6)(4)+(15)(4)+(15)(6))$
$\sf A=348~ft^2$

This is incorrect, they have different surface areas, but only Rectangle #1 has a volume of 240 cubic feet.

D:

Rectangular Prism #1
$\sf V=lwh$
$\sf V=(12)(6)(5)=360~ft^3$

$\sf A=2(wl+hl+hw)$
$\sf A=2((12)(6)+(5)(6)+(5)(12))$
$\sf A=324~ft^2$

Rectangular Prism #2
$\sf V=lwh$
$\sf V=(8)(10)(3)=240~ft^3$

$\sf A=2(wl+hl+hw)$
$\sf A=2((8)(10)+(3)(10)+(3)(8))$
$\sf A=268~ft^2$

This is incorrect, they both have different surface areas but only Rectangle #2 has a volume of 240 cubic feet.

5 0

4 years ago

Write the expression as either the sine, cosine, or tangent of a single angle.

lana66690 [7]

The expression is:
cos (π / 5) cos (π/7) + sin (π/5) sin(π/7)

This expression can be reduced into a trigonometric function with one angle if we make use of the trigonometric identities. The appropriate identity is:
cos (A - B) = cos A cos B + sin A sin B

If we let
A = π / 5
B = π / 7

Therefore,
cos (π / 5) cos (π/7) + sin (π/5) sin(π/7) = cos (π/5 - π/7) = cos (2π/35)

4 0

4 years ago

Read 2 more answers

Andru [333]

Answer:

3.85 gallons

Step-by-step explanation:

11/4 gallons /5 x 7

= 2.75 gallons /5 x 7

= 0.55 gallon x 7

= 3.85 gallons

3 0

3 years ago

Read 2 more answers

Help please I don’t understand this at all??

Shalnov [3]

That would be equal to the slope of the line
slope = rise / run = 100-10 / 30 = 90/30 = 3 Answer

8 0

3 years ago