what is the probability of picking a red card from a standard deck of 52 cards?

Answers

Answer 1

well, the suits of ♦ , ♥ are both red, and each suit has 13 cards, there are 52 cards in the deck,

[tex]\bf P(\diamondsuit~or~\heartsuit)\implies \cfrac{13}{52}+\cfrac{13}{52}\implies \cfrac{26}{52}\implies \cfrac{1}{2}[/tex]

Answer 2

Answer: 50

Step-by-step explanation:

Related Questions

A drawbridge in Jacksonville, FL, allows an average of 22 boats per day to pass. What does the point (4,88) on the graph mean in this situation?

Answers

The point (4,88) on the graph means that after 4 days, 88 boats will have passed under the bridge. (Third answer choice).

Answer: This shows, 'After 4 days, 88 boats will have passed under the bridge'.

Explanation:

Since, According to the question, Jacksonville allows an average of 22 boats per day to pass.

Thus we can say that number of boats is dependent on days and both are varying.

And, a function is the type of y=f(x), where x is independent variable while y is dependent variable.

So, we can take x for representing number of days and y for representing number of boats.

Thus, according to the question, y= 22x.

if we take 4 days i.e. x=4 then y=22×4=88

⇒It takes 4 days for an average of 88 boats.

Which is showing by (4,88) on the given graph.

how many students were reading during study time?

Answers

I think that 10 students were reading during study time.

Write the point-slope form of the equation of the line that passes through the points (-8, 2) and (1, -4). Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution.

Answers

The point-slope form can be simplified from the 2-point form.

y +4 = (-4-2)/(1-(-8))*(x -1) . . . . 2-point form
y +4 = -6/9(x -1)
y +4 = -2/3(x -1) . . . . . point-slope form

_____
Above is the usual form associated with the term "point-slope form." I prefer a form with the y-value of the point added to both sides:
.. y = -2/3(x -1) -4

If ab = 8 and a^2+b^2=16, then what is the value of (a+b)^2?

Answers

Note that (a+b)^2 = a^2 + 2ab + b^2. This is always true.

Let's re-write the given "ab = 8 and a^2+b^2=16" as
a^2 + 2ab + b^2 = 16 + 2ab, or, equivalently, as
(a+b)^2 = 16 + 2(8) = 32.
This is the answer we wanted.

Need the steps to get the answer 0.264 that is on my answer key textbook

Answers

Realize "%" means "/100".
26 2/5% = 26.4% = 26.4/100 = 264/1000 = 0.264

Give a description of a3/4 turn of the minute hand on a clock face

Answers

it's 9:00 because the clock only goes upto 12 and it well be 3/4 75% .so if 3*4 is 12 3*3=9

the binomial expansion of (x-2y)^3 is ____.

A. x^3-x^2y+12xy^2-8y^3
B. x^3-3x^2y+3xy^2-y^3
C. x^3-3x^2y+3xy^2+y^3
D. 2^3(x^3-3x^2y+3xy^2-y^3)

Answers

I think the right answer is x`3 - 6x`2y + 12xy`2 - 8y`3 but its not here tho

A= x^3−6x^2y+12xy^2−8y^3

Helppp experrts/ace/geniuses

Answers

the irrational number would be square root 9/27

After a concert for 1,600 people, only 4 people said they would not go to see the band again. What percent of the people who went to the concert said they would not go to see the band again?

Answers

The answer you are looking for is 0.25%.

To find this, you must first divide 4 by 1,600, to find the decimal amount of people who said they wouldn't go again. This would give you 0.0025, which you then multiply by 100 to make a percentage. Thus making 0.25%, the correct answer.

I hope this helps!

Answer:

0.25 percent

Step-by-step explanation:

Jake needs to put gas in the delivery van. Regular gasoline is $3.20 per gallon. He only had a $ 20 bill on him. How many gallons can he buy

Answers

Let's assume x = 20

Let's also assume that y = 3.20

x is how much money he has and y is how much the cost is.

To find out how much he can buy, we would do x/y, or 20/3.20.

He can buy about 6.25 gallons.

.7854 mil i believe Im righ

Table Sasha wants to know her average grade on her math tests. She earned a score of 70 on two tests, an 80 on one test, and a 90 on two tests. What is Sasha’s mean score? 70 75 80 90 This question is for 79 points

Answers

you are missing another 70 it says 70 on 2 tests so it would be 70, 70, 80, 90 then add
the / means divide
(70 + 70 + 80 + 90) / 4 = 77.5

She scored 70in 2 tests, 80in one test and 90 in other two.
So mean score=(70+70+80+90+90)/5
Mean score=400/5= 80 marks

What's the proper name of the quadrilateral below?

Answers

the proper name of the quadrilateral is called Parallelograms

ok so there are many quadrelaterals

trapezoids have to have 1 parralel side

rhombuses have to have 2 pairs of parralel sides and so on

solve the inequality 2× - 5 > 7

Answers

2x - 5 > 7
add 5 to both sides
2x -5 + 5 > 7 + 5

2x > 12
divide both sides by 2
2x/2 > 12/2

two over two equals one so it "cancels out"

x > 6

ANSWER: x > 6

Hope this helps! :)

Find the length and width of a rectangle that has the given perimeter and a maximum area. perimeter: 244 meters

Answers

we know that

[perimeter of rectangle]=2*(length+width)

Let
x-----------> length
y-----------> width
so
P=2*(x+y)-----------> 244=2*(x+y)-----> x+y=122-------> y=122-x

Area=x*y-------> x*(122-x)----> 122x-x²

find the derivative function and equals to zero

122-2x=0-----> 122=2x----------> x=61 m
y=122-x------> y=122-61---------> y=61 m

the maximum area is given by a square

the answer is
is a square of side 61 m

which represents the solution(s) of the equation x2=289?

a. x equals the square root of 17
b. x equals positive square root of 17
c. x equals negative square root of 289
d. x equals positive square root of 289

Answers

The answer is D, since when you simplify the equation, you would sqrt each side of the equation, making the answer be the positive square root of 289.

Hope this helps!

Answer:

The answer are the options C and D

x equals negative square root of [tex]289[/tex]

x equals positive square root of [tex]289[/tex]

Step-by-step explanation:

we have

[tex]x^{2} =289[/tex]

Take square root both sides

[tex]x=(+/-)\sqrt{289}[/tex]

therefore

the solutions are

[tex]x=+\sqrt{289}[/tex]

[tex]x=-\sqrt{289}[/tex]

Money off coupons have been circulated to 300 households. Only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. What fraction of coupons were unused?
(PS: Please write how you go the answer)

Answers

If 2/5 of them were used,

1 - 2/5 = 3/5

3/5 of them were not used.

how do you write one half the difference of X and 4?

Answers

1/2(x - 4). Hope it helps! :)

The diameter of a circle is 6 yards. What is the circle's area? d=6 yd Use 3.14 for .

Answers

Answer: 28.26 square yards

Step-by-step explanation:

The diameter is twice the radius, so if the diameter is 6, the radius is 3.

[tex]A=\pi(3^{2})=9\pi \approx 9(3.14)=\boxed{28.26 \text{ yd}^{2}}[/tex]

if the height of a rectangular prism is doubled then the surface area of the prism is and I need work to and can you please help me and thank you

Answers

Only the part of the surface area affected by the height is doubled. The end area remains the same. Overall, the area increases, but is not quite doubled.

Selection C is appropriate.

If u = 3 inches, v = 4 inches, w = 7 inches, x = 6 inches, y = 8 inches, and z = 5 inches, what is the area of the object?

A.60 square inches
B.66 square inches
C.63 square inches
D.56 square inches

Answers

8*9 = 72
u *v = 3 *4 = 12
72-12 = 60

3 *2 = 6/2 = 3

60 +3 = 63

Answer is C

The area of the object will be 63 square inches. Then the correct option is C.

What is Geometry?

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

If u = 3 inches, v = 4 inches, w = 7 inches, x = 6 inches, y = 8 inches, and z = 5 inches.

All the dimensions are shown in the figure.

Then the area of the geometry is the combination of two rectangle and one triangle.

Area = area of rectangle 1 + area of rectangle 2 + area of triangle 3

Area = 5 x 8 + 4 x 5 + (1/2) x 3 x 2

Area = 40 + 20 + 3

Area = 63 square inches

Then the correct option is C.

More about the geometry link is given below.

https://brainly.com/question/7558603

#SPJ2

What is the product of (–0.9)(–2.4)?
–3.3
–2.16
2.16
3.3

Answers

The answer would be 2.16.

This is because the two negatives would cancel each other out when multiplying. This would basically make the question [tex]0.9*2.4[/tex].
Now 3.3 is definitely not less than 2.4, so the answer would be 2.16

Two negatives terms multiplied together make a positive, so the product of (–0.9)(–2.4) will be equal to 2.16

What is the fundamental principle of multiplication?

If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

WE know that Two negatives multiplied together make a positive, so the two negatives would cancel each other out when multiplying. This would basically make the solution.

WE have to find the product of (–0.9)(–2.4)

it’s simply (–0.9) x (–2.4) = 2.16

Now from the first option 3.3 is definitely not less than 2.4, so the answer would be positive 2.16

Hence, the product of (–0.9)(–2.4) will be equal to 2.16

Learn more about multiplications;

https://brainly.com/question/14059007

#SPJ6

find (f*f)(3) f(x)=x^2-x

Answers

fof(x) = f(x^2 - x) = (x^2 - x)^2 - (x^2 - x)
f(3) = (9 - 3)^2 - (9 - 3)
f(3) = 6^2 - 6
f(3) = 36 - 6 = 30

I wouldn't want to bet the farm on this. If you get another answer that is reasonable, take it.

To find (f * f)(3) for the function f(x) = x² - x, we calculate f(3) to get 6, and then square it to get 36.

The question is asking to calculate (f * f)(3) given the function f(x) = x² - x. To do this, we find the value of f(x) for x=3 and then square that result. First, let's compute f(3).

f(3) = (3)² - (3) = 9 - 3 = 6.

Now, we find (f * f)(3), which means f(3) * f(3).

(f * f)(3) = f(3) * f(3) = 6 * 6 = 36.

Therefore, the solution to (f * f)(3) is 36.

Dennis surveyed 30 students to determine their favorite fall sports. Of the students surveyed, 15 preferred football, 6 preferred soccer, and the rest preferred volleyball. Which is a correct statement about the results from the survey?

Answers

Are the options to choose from? That is what it seems like.

Of the students surveyed, 30% preferred volleyball.

Find the general solution of the differential equation y'' - 2y' - 3y = -3te^(-t)

Answers

Consider this solution. Pls, make a design according the local requirements.

Evaluate a) log^3 81 b) log^25 5

Answers

We evaluate the logs as follows:
a]
log_3 81
=log_3 (3^4)
=4 log_3 3
=4×1
=4

b]
log_5 25
=log_5 5²
=2log_5 5
=2×1
=2

The sum of 4 consecutive odd numbers is 40. What is the 2nd number in this sequence?

Answers

Try this option (it is not the only way):
1. if to use for consecutive odd numbers: n; n+2; n+4 and n+6), then it is possible to write their sum in equation: n+n+2+n+4+n+6=40.
2. if to solve this equation: n=7 it means that 7 - the 1st number of the given sequence.
Using n=7 the 2d number of this sequence is n+2=9.

answer: 9.

If Sandy can afford car payments of $260 per month for 3 years, what is the price of a car that she can afford now? Assume an interest rate of 7.8 percent.

Answers

To get the type of car that Sandy can afford after 3 years, we find the future annuity of the his yearly deposits.
amount deposited by Sandy in a month is $260
amount deposited per year=260*12=$3120
time=3years
rate=7.8%

Fv of annuity= P[(1+r)^n-1]/r
substituting our values we get
Fv=3120[(1+0,078)^3-1]/0.078
=10109.06208
The value of a car he can drive is $10109.06208

what is the area of this

Answers

The total area of the figure, calculated by summing the areas of three rectangles, is 81 square yards.

The figure in the image is composed of three rectangles. To find the total area, we calculate the area of each rectangle and then sum them up.

The first rectangle has a length of 13 yards and a width of 5 yards. Using the formula for the area of a rectangle, which is length times width, we get an area of 13 yd * 5 yd = 65 square yards.

The second rectangle extends upwards with a length of 2 yards and a width of 5 yards. Its area is 2 yd * 5 yd = 10 square yards.

The third rectangle extends to the right with dimensions of 2 yd by 3 yd. Its area is 2 yd * 3 yd = 6 square yards.

Adding these areas together, we get a total area of 65 sq yd + 10 sq yd + 6 sq yd = 81 square yards.

The question probable may be:

Find the area of the figure. (sides meet at right angles.)

The area of the piecewise rectangular figure is 59 square yards.

How the area is determined:

The first rectangle:

Length = 13 yards

Width = 5 yards

Area of the first rectangle = 65 square yards (13 x 5)

The second rectangle:

Length = 13 yards

Width = 2 yards

Area of the second rectangle = 6 square yards (3 x 2)

Since the second rectangle reduces the first rectangle, we subtract:

Area of the piecewise rectangle = 59 square yards (65 - 6)

Thus, we can conclude that the area of the piecewise rectangular figure is 59 square yards.

On a coordinate plane, the coordinates of vertices R and T for a polygon are R(-6,2) and T(5,2). what is the length of side RT of the polygon?

Answers

25 units first u go along the x axis then the y then you get ur answer
:))) day

Answer:

YoOoooo its 7 units

Step-by-step explanation:

The length of a garden is 5m greater than the width. the area is 66m^2. Find the dimensions of the garden.

Answers

w^2+5w-66=0
Factor
(w+11)(w-6)=0

w+11=0
w=-11 (not possible - cant have negative length

w-6=0
w=6

L(6)=66
L=11

Width = 6
Length = 11

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