One card is selected from a deck of cards. Find the probability of selecting a black card or a king. ​

Answers

Answer 1

Answer:

30/52

Step-by-step explanation:


Related Questions

In the equation below, what value of bresults in an
equation with infinitely many solutions?
3(bx - 1) = -3 + 12x

Answers

Step-by-step explanation:

3bx-3 = -3+12x

3bx=-3+3+12x

3bx=12x

3bx/3=12x/3

bx=4x

bx/x=4x/x

b=4

Write the Linear Equation (y=mx+b) from the following table:

Answers

Answer:

y=3x+2

Step-by-step explanation:

y2 - y1 / x2 - x1

17-11 / 5-3 = 6/2 = 3

m = 3

17 = 3(5) + b

17 = 15 + b

b = 2

(please correct me if i did this wrong)

what is the equation of the vertical line through (2, 3) hurry! 40 points

Answers

Step-by-step explanation: The equation of a vertical line can always be written as x = the x-coordinate of the given point.

So in this case, our equation is x = 2.

find the missing side length of similar polygons

Answers

Answer:

23

Step-by-step explanation:

how many real sixth roots does 1 have

Answers

Answer:

Im pretty sure it's 2, but Im not sure

Step-by-step explanation:


True or False: Exponential growth and exponential decay graphs are always
functions

Answers

Answer:

true

Step-by-step explanation:

Answer: The answer is TRUE

A wedding dress was marked up 35% and is now selling for $270.00. What was the original price of the dress?

Answers

Answer:

365.50 dollars

Step-by-step explanation:

multiply 270 by 35% then add that to 270

Which of the following equations represent exponential growth functions? Choose all that apply.
a) f (x)=4^x
b) f (x)=(1/4)^-x
c) f (x)=(2/3)^x
d) f (x)= (2.3)^x
e) f (x)=(.8)^x

Answers

Option:-

a) f(x) = 4^x is applicable

b) f(x) ={ (1/4)^-x = 4^x }is applicable

c.) f(x) = (2/3)^x is not applicable

d.) f(x) = (2.3)^x is applicable

e.) f(x) = (.8)^x is not applicable

Options (a), (b) and (d) are exponential growth functions.

What is Exponential function?

An exponential decay is in the form:

y = abˣ

where y, x are variables, a is the initial value of y and b is the multiplier which is less than 1.

By the Exponential decay form,

An exponential decay is in the form: y = abˣ

(a) f (x)=4ˣ is applicable as 4>1

(b) f (x)=(1/4)⁻ˣ is applicable as (1/4)-1=4>1

(c)  f (x)=(2/3)ˣ is not applicable because 2/3<1

d) f (x)= (2.3)ˣ is applicable as 2.3>1

e) f (x)=(.8)ˣ is not applicable, 0.8<1.

So options (a), (b) and (d) are applicable for exponential growth functions.

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A family purchased tickets to a museum and spent a total of $45.00. The family purchased 5 tickets. There was $1.50 processing fee for each ticket. What is the cost of one ticket without the processing fee?

Answers

7.50$ for each ticket without the processing fee

The radius of a circle is 2 millimeters. What is the circle's area?
r=2 mm
Use 3.14 for .
sanare millin

Answers

Answer:

12.56 mm²

Step-by-step explanation:

[tex]A=\pi r^{2}[/tex]

Plug the given values into the area equation

[tex]A=3.14*2^{2}\\A=3.14*4\\A=12.56[/tex]

Therefore, the area of the circle is 12.56 mm².

I hope this helps!


solve the following equation ​

Answers

The answer should be b

Find the value of x *

A) 20

B) 10

C) 15

D) 25

Answers

Answer:

B. 10

Step-by-step explanation:

While doing construction O and P are joined then

OQ = OR

<QOR = 80°

<QPR = <QOR /2 ( INSCRIBED ANGLE IS HALF OF THE CENTRAL ANGLE STANDING ON SAME ARC)

<QPR = 80°/2

<QPR = 40°

SO

< QPO = X

<RPO = 30°

<QPO + <RPO = < QPR

X + 30° = 40°

X = 40° - 30°

X = 10°

hope it helps

please please help with equations

Answers

Answer:

Clara: y=40x+ 50 Hector: y=35x+100To cost the same we need to set the equations equal to each other 40x+50=35x+1005x=50 --> x= 10hours I do exams and quizzes if your interested!

graph the image of V (3,–7) after a rotation 180° clockwise around the origin.

Answers

Answer and Step-by-step explanation:

It is in the screenshot.

The point is (-3, 7), and would be noted as V'.

#teamtrees #WAP (Water And Plant)

Image of the point V is V' = (-3, 7) as shown in the graph below.

What is Coordinate Geometry?

One of the most intriguing ideas in mathematics is called coordinate geometry. By using graphs with curves and lines, coordinate geometry (also known as the analytic geometry) explains how geometry and algebra are related. They can answer geometrical problems because it gives them geometrical aspects of algebra. In this area of geometry, a pair of ordered numbers is used to describe the location of points on a plane.

As per the given data:

Coordinates of point V = (3, -7)

Rotation to be given = 180° (clockwise)

For drawing the image of point V (3, -7):

Step 1: Draw a line passing through the origin and V (3, -7) extending through 2nd and 4th quadrant.

Step 2: Change sign of x and y coordinates as rotation is of 180° and mark the point in the 2nd quadrant.

Image of the point V is V' = (-3, 7) as shown in the graph below.

Hence, the image of the point V is V' = (-3, 7).

To learn more about Coordinate Geometry, click:

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It takes Kevin 5 minutes to jog once around a
circular track that has a diameter of 400 meters.
About how many meters per minute is Kevin
jogging?
A. About 250 meters per minutes.
B. About 350 meters per minute.
C. About 450 meters per minute.
D. About 500 meters per minute.

Answers

A. About 250 meters per minutes.

Rachel loves to read. Her favorite books are Dr Suess. For every 13 books Rachel owns 8 are Dr Suess books.
If Rachel had 32 Dr Suess books, how many books did she have in total?

Answers

Answer:

32

Step-by-step explanation:

when is season 3 of Jurassic Park camp Crutasus coming out TELL ME THE REAL ANSWER

Answers

Jurassic Park: Camp Cretaceous season 3 is planned to release anywhere from September to October of 2021.

Answer:

It depeands on where you live but it should be out in America on January 30, 2021

Step-by-step explanation:

10 points !!

Which expression is equivalent to this polynomial x^2+12

Answers

Answer:

expand x^2+12 --> results in A

Help me please!! I don’t know what a quadratic graph is and need help answering this question! ASAP

Answers

Answer:

C

Step-by-step explanation:

Which lines in the diagram must be parallel?
(not drawn to scale)
514
1337
47°
q
S

Answers

Answer

47

Step-by-step explanation:

There are places in the world where the forests have been destroyed and trees no longer grow. What needs to take place for a forest to be a renewable resource?



what is the answer?

Answers

Reforestation must take place if forests have been destroyed.

Afforestation is creating new forest where non had existed before.

Answer:

Reforestation must take place if forests have been destroyed.Afforestation is creating new forest where non had existed before.

Step-by-step explanation:

Mario is constructing a wall around a rectangular area which will cover a maximum of 60 square feet. The length of the wall will be 10

feet.


Which inequality represents all the possible widths in feet, w, that Mario can use to construct the rectangular

wall?


Answers

Answer:

[tex]W \le 6[/tex]

Step-by-step explanation:

Given

[tex]Area = 60ft^2\ (max)[/tex]

[tex]Length = 10ft[/tex]

Required

Represent the width as an inequality

First, we represent the area as an inequality.

[tex]Area = 60ft^2\ (max)[/tex]

max as used above means less than or equal to.

So, we have:

[tex]Area \le 60[/tex]

The area of a rectangle is:

[tex]Area = L * W[/tex]

So, we have:

[tex]L * W \le 60[/tex]

Substitute 10 for L

[tex]10 * W \le 60[/tex]

Divide both sides by 10

[tex]\frac{10 * W}{10} \le \frac{60}{10}[/tex]

[tex]W \le \frac{60}{10}[/tex]

[tex]W \le 6[/tex]

2. A nutritionist wants to collect data on how much caffeine the average American drinks per day. She has the following ideas for how she could obtain a sample:
a. Ask the first 20 adults who arrive at a grocery store after 10:00 a.m. about the average amount of caffeine they consume each day.
b. Every 30 minutes, ask the first adult who comes into a coffee shop about the average amount of caffeine they consume each day.​

Answers

Answer:

B

Step-by-step explanation:

If you start to ask after 10:00 am, a lot of people isn't drinking caffeine. And, were trying to figure out the average.

Solve either of the correct equations using any method. Round to the nearest whole number.
D =
days

Answers

Answer:7

Step-by-step explanation:

on edg

Answer:

7 days

Step-by-step explanation:

Leroy borrowed $1500 at an annual simple interest rate of 12%. He paid $270 in interest. For what time period did Leroy borrow the money? Remember, your answer will be in years!

Answers

Step-by-step explanation:

well..this is the answer..using..time formula

HELP DUE IN 15 mins need help ASAP please!!!!!

Answers

idek but imma ask mah mate who's a maths genius or whateva to help out ig

Which is the graph of y= -x-3?

Answers

Answer:

Graph a

Step-by-step explanation:

Answer:

the answer is A

Step-by-step explanation:

to start, I would use the slope intercept, in this case -3 which lets you know the slope meets the y axis at (0,-3) since you have that point, you count with the slope.

now slope is rise over run, therefore, it would be y over x and since the y in this case is 3, you'd go up three from your point. since x is 4, you'd go right four units from where you are. since A is the only graph that follows that, A would be correct.

In ΔMNO, n = 92 inches, ∠N=119° and ∠O=20°. Find the length of m, to the nearest 10th of an inch.

Answers

Answer:

Step-by-step explanation:

The length of the side of the triangle will be 69 inches.

What is the sine law?

The Law of Sines The law of trigonometric functions, sine law, sine formula, or sinusoidal rule is a trigonometric equation that relates the sizes of any triangle's edges to the sines of its orientations.

The sine law in the triangle ΔMNO is given as,

n / sin N = m / sin M = o / sin O

The third angle is calculated as,

∠M + ∠N + ∠O = 180°

∠M + 119° + 20° = 180°

∠M = 41°

The length m is calculated as,

n / sin N = m / sin M

92 / sin 119° = m / sin 41°

m = 69 inches

The length of the side of the triangle will be 69 inches.

More about the sine law link is given below.

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What is the measure of ∠XYZ? show your work

Answers

Answer:

i don't know..........,......

Graph the line with the given slope that passes through the given point
Slope=2;(-1,4)

Answers

Answer:

         B

Step-by-step explanation:

Point (-1, 4) it's point where x-coordinate is -1 and y-coordinate is 4

Graph in B is the only one passing through (-1, 4)

The equation of the line is y = 2x + 6. The graph is represented by B.

What is an equation of the line?

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given that the slope of the line is 2 and the point through which it is passing is (-1,4).

The equation of the line will be calculated as,

y = mx + c

y = 2x + c

4 = -2 + c

c = 6

The equation will be written as,

y =2x + 6

The graph of the line is attached with the answer below.

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