All categories

3 years ago

Hey!!! Can someone plz help me out? Heres a pic

Mathematics

2 answers:

Aleks [24]3 years ago

8 0

Answer:

Its c

Step-by-step explanation:

Nookie1986 [14]3 years ago

5 0

Answer:

Step-by-step explanation:

A is. You can only have the "x" used once to be a function. It must pass the vertical line test.

You might be interested in

A block of ice has a square top and bottom and rectangular sides. At a certain point in

Lilit [14]

Answer:

$\frac{dV}{dt} = 360 \ cm^3/h$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Geometry

Volume of a Rectangular Prism: V = lwh

Calculus

Derivatives

Derivative Notation

Differentiating with respect to time

Basic Power Rule:

f(x) = cxⁿ
f’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

Step 1: Define

$l = 30 \ cm\\w = l\\\frac{dl}{dt} = 2 \ cm/h\\h = 20 \ cm\\\frac{dh}{dt} = 3 \ cm/h$

Step 2: Differentiate

Rewrite [VRP]: $V = l^2h$
Differentiate [Basic Power Rule]: $\frac{dV}{dt} = 2l\frac{dl}{dt} \frac{dh}{dt}$

Step 3: Solve for Rate

Substitute: $\frac{dV}{dt} = 2(30 \ cm)(2 \ cm/h)(3 \ cm/h)$
Multiply: $\frac{dV}{dt} = 360 \ cm^3/h$

Here this tells us that our volume is decreasing (ice melting) at a rate of 360 cm³ per hour.

3 0

3 years ago

An entry level price for Car A is R220 000, while an entry level price for Car B is approximately 81.818% of Car A. Explore Moto

REY [17]

Explore Motors dealership has R7 million to spend and wants to buy equal numbers of the entry.

6 0

3 years ago

Indicate which two quadrants “theta” could terminate if sin theta = 4/5

Nitella [24]

Answer:

1st and 2nd quadrants

Step-by-step explanation:

You have sine is positive since it is 4/5.

Sine is the y-coordinate.

On the coordinate plane y is positive in the 1st and 2nd quadrants.

8 0

3 years ago

Yeah i need major help with this

Lady_Fox [76]

Answer:

See below

Step-by-step explanation:

I'm not sure if there are any specific instructions on how these answers are supposed to be written, but here's my best shot:

1. U

2. XZ, VY

3. VU, WU

4. XY, ZY

5. ⊙U

6. XZ, VY (they are diameters but also intersect)

7. VY = 10 cm, WU = 5 cm

8. Diameter (of larger circle)

9. Diameter (of smaller circle)

10. Radius (of larger circle)

11. Radius (of smaller circle)

3 0

3 years ago

What is the equation in vertex

jok3333 [9.3K]

$\bf ~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{ope ns~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\bf \stackrel{\textit{vertex}}{(3,-2)}~~ \begin{cases} h = 3\\ k = -2 \end{cases}\implies y=a(x-3)^2-2 \\\\\\ \stackrel{\textit{passes through}}{(5,-1)}~~ \begin{cases} x=5\\ y= -1 \end{cases}\implies -1=a(5-3)^2-2\implies 1=a(2)^2 \\\\\\ 1=4a\implies \cfrac{1}{4}=a~\hfill \boxed{y=\cfrac{1}{4}(x-3)^2-2}$

5 0

3 years ago

Read 2 more answers