Answer: 0.3077
Explanation: In a standard deck of cards, there are 52 cards. They are broken down into suits (4 of them: Spades, Hearts, Diamonds, Clubs) of 13 cards each. Each suit has 13 ordinal cards (A, 2 through 10, Jack, Queen, King).
Here we're asked to draw a card at random and find the probability of drawing either a diamond or a 7.
With probability, we look at the fraction of ways we can achieve some condition (the numerator) over the number of ways we can do something (the denominator).
Our denominator here is 52 - the number of cards from which we can pull 1.
Our numerator is both all the diamonds, 13 cards, and all the sevens, 4 cards, but we need to subtract 1 to account for the double counting of the 7 of diamonds.
In all we get: 13+4−1/52=16/52=4/13≈0.3077
Hope this helps... Stay safe and have a great day/night!!!
Graph each function and determine the y-intercept, then use the graph to determine the approximate value of the given expression. y = 3^x, 3^1.2 a. 1; 3.7 c. 0; 3.9 b. 1; 2.9 d. 0; 3.5
Answer:
The right answer is A
Step-by-step explanation:
The value of the exponential equation is y = 3ˣ and the graph is plotted
What are the laws of exponents?When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1. Negative exponents are the reciprocals of the positive exponents.
The different Laws of exponents are:
mᵃ×mᵇ = mᵃ⁺ᵇ
mᵃ / mᵇ = mᵃ⁻ᵇ
( mᵃ )ᵇ = mᵃᵇ
mᵃ / nᵃ = ( m / n )ᵃ
m⁰ = 1
m⁻ᵃ = ( 1 / mᵃ )
Given data ,
Let the exponential equation be represented as A
Now , the value of A is
y = 3ˣ be equation (1)
Now , the y intercept of the equation is when x = 0
So , when x = 0
y = 3⁰
y = 1
Now , when y₁ = 3^1.2
The value of y₁ = 3.7
Therefore , the y intercept of the equation is 1 and the graph is plotted
Hence , the exponential equation is y = 3ˣ
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If 25 is added to 5 times a certain number, the result is 7 times the number minus 35. Find the number.
Step-by-step explanation:
Required Answer:-Let the certain number =x
According to the question
[tex]{:}\longrightarrow[/tex][tex]\sf 5x+25=7x-35 [/tex]
Simplify[tex]{:}\longrightarrow[/tex][tex]\sf 7x-35=5x+25 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 7x-5x=25+35 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf 2x=60 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {60}{2}}[/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x=30 [/tex]
[tex]\therefore[/tex]The number is 30.
Replacing the maximum value of the data set with a smaller number will also affect the mean. A:always B:sometimes C:never
Answer:
B: sometimes
Step-by-step explanation:
Let's look at two examples.
Example A.
2, 3, 5: mean is 3
Replace 5 with 1. Now you have 1, 2, 3: mean is 2.
In this case, it affected the mean.
Example B.
2, 3, 5: mean is 3
Replace 5 with 4. Now you have 2, 3, 4: mean is 3.
In this case, it did not affect the mean.
As you can see, replacing the maximum value of the data set with a smaller number may or may not change the mean.
Answer: B: sometimes
Which letter has rotational symmetry?
A. I
B. J
C. K
D. L
Answer:
K
Step-by-step explanation:
im guessing its K if not then its none!
PLZ HELP ME I WILL MARK BRAINLIEST!!!
Answer:
i just kno that D is 0
Step-by-step explanation:
-7 +7=0
What is 9x10= xxxxxxxx
Answer:
9x10 = 90
Step-by-step explanation:
10, 10, 10, 10, 10, 10,10, 10, 10
You sell 200 laptops per month at $499 per laptop. You sell 350 smartphones per month at $399 per phone. Which
generates more sales in dollars for you?
a) Laptops
b) Smartphones
Answer:
B) Smartphones
Step-by-step explanation:
In order to answer this question we need to find the total revenue for the laptops and smartphones.
Let's start with the laptops.
Given:
200 laptops/month$499 per laptopTo find the total revenue of all these laptops we need to multiply 200 by 499.
[tex](200) *(499) = 99,800[/tex]
Therefore, the total revenue of the laptops alone is $99,800.
Now, let's do the smartphones.
Given:
350 smartphones/month$399 per smartphoneTo find the total revenue of all these smartphones we need to multiply 350 by 399.
[tex](350) * (399) = 139,650[/tex]
Therefore, the total revenue of the smartphones alone is $139,650.
Comparing the two revenues we see that the smartphones generate more sales in dollars.
Hope this helps!
- Kay
A computer monitor is packaged in a cube-shaped box with an inside edge length of 2.5 feet.What is the volume of the box?
Answer:
odlxksms
Step-by-step explanation:
skzkxjkdidok
two students have examined the scatter plot shown in have created in line best fit for the data. student A believes that the line of best fit for the data is y= -2x + 24, while student B believes that the line of best fit for the data is y = 1.5 + 23
*Determine which student created a better line of best fit given the data in the graph.
Answer:
Step-by-step explanation:
im pretty sure its student a not 100% sure tho
The line of best fit is simply the trending line of a graph
Student A creates a better line of best fit
The linear equations are given as:
[tex]\mathbf{y = -2x + 24}[/tex]
[tex]\mathbf{y =1.5x + 23}[/tex]
The given graph shows a negative linear association.
This is so because, as the x-values increases, the y-values decreases.
This in other words means that:
The slope of the graph is negative
A linear graph is represented as:
[tex]\mathbf{y = mx + c}[/tex]
Where: m represents slope
By comparison
m = -2 and m = 1.5 for the equations of the two students.
Because the slope of the graph is negative, then
m =-2 is correct
Hence, student A creates a better line of best fit
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express the following as a ratio in its simplest from
9 to 16
10 to 12
20 to 16
24 to 36
9:16 -> 3:8
How?
Divide each side by 2 (the GCF).
10:12 -> 5:6
How?
Divide each side by 2 (the GCF).
20:16 -> 5:4
How?
Divide each side by 4 (the GCF).
24:36 -> 2:3
How?
Divide each side by 12 (the GCF).
Answer:
9: 16 for 9 to 16; is the simplest form for 9/16 cuz nothing can go into 9 and 16
5 : 6 for 10 to 12; cuz 10 divided by 2 is 5 and 12 divided by 2 is 6!
5: 4 for 20 to 16; cuz 20 divded by 4 is 5 and 16 divded by 4 is 4
lastly is 2:3 for 24 to 36; why? well it's ciz 24 divided by 12 is 2 and 36 divedde by 12 is 3
hope this helps and pls don't delate my answer!
Carlos can run 5 miles in 45 minutes, Kelly can run 10 miles in 80 minutes, and Mick can run 30 miles in 170 minutes
Answer:
Mick can run farther in less time if that's the question
Step-by-step explanation:
Mick's speed is faster.
What is speed?Speed is the ratio of distance and time.
It shows how fast an object is moving at a given time.
We have,
Carlos can run 5 miles in 45 minutes.
45 minutes = 45/60 = 0.75 hours
Speed.
= 5/0.75
= 6.66 miles per hour.
Kelly can run 10 miles in 80 minutes.
80 minutes = 1.33 hours
Speed.
= 10/1.33
= 7.5 miles per hour.
Mick can run 30 miles in 170 minutes
170 minutes = 2.8 hours
Speed.
= 30/2.8
= 10.7 miles per hour
Thus,
Mick's speed is faster.
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(-73d4)(4cd3)
answer
192cd2 is your answer the end 2 should be squared sorry
Answer:
-292d^7c
Step-by-step explanation:
What is the probability of getting a 3 or 7 when drawing a single card from a deck of 52
Answer:
1/52
Step-by-step explanation:
There are 52 cards you can draw from, 3 is one of them. 7 is another possibility.
Choose the behaviors that are IF YOU HELP ME IN LESS THATN 2MINS I WILL GIVE YOU BRAINLY MASTER THING!!!exhibited by someone who is using critical thinking.
Questions ideas and beliefs
Assesses information gathered
Gathers relevant information
Tests conclusions against reasonable criteria
Thinks along a narrow track
Jumps to conclusions
Answer: what do you need
Step-by-step explanation:
A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly? (round to the nearest whole number)
(Please answer with explination)
Answer:
Required Answer:-A student earned 80% in a math test which has 20 problems.It means The student answers 80% of 20 problems correctly[tex]\longrightarrow[/tex][tex]\sf 80\%\:of\:20 [/tex]
[tex]\longrightarrow[/tex][tex]\sf {\dfrac{80}{{\cancel{100}}}}\times {\cancel{20}} [/tex]
[tex]\longrightarrow[/tex][tex]\sf {\dfrac {80}{5}}[/tex]
[tex]\longrightarrow[/tex][tex]\sf 16 [/tex]
[tex]\therefore[/tex] The student answered 16 problems correctly
1. Determine the number of combinations of the letters of the word EXAMINATION given that
four letters are taken at a time.
(5marks)
Answer:
210
Step-by-step explanation:
10 choose 4. 10 letters choose 4. Using the combination formula. C(n,r)
just occupying space up hear !
and the question is
simplify;
2+3√2!
James, Priya, and Siobhan work in a grocery store. James makes $9.00 per hour. Priya makes 40% more than James, and Siobhan makes 5% less than Priya. How much does Siobhan make per hour?
Siobhan makes $ per hour.
Answer:
$7.98 per hour
Step-by-step explanation:
given the grph of the function F(x) below, what happens to F(x) when x is a negative number with a large absolute value?
Answer:
F(x) is a large positive value
Step-by-step explanation:
If it is a negative number with a large absolute value say |-250| it would become positive 250 so f(x) would also be a large positive number
Answer it for Brainliest *URGENT*
Answer:
Step-by-step explanation:
A = π r²
A = 11²π - 3²π = ( 121 - 9 ) π = 112 π ≈ 112 × [tex]\frac{22}{7}[/tex] = 352 cm²
( 112 × 3.14 = 351.68 cm²)
75/6 hasta que el residuo sea cero
75/6 no puede tener un resto de cero ya que 6 solo entra en 7 12 veces con el resto de 3
There exists a similarity transformation that maps AABC to AA'B'C'. The measure
of ZAis 68°, and the measure of ZBis 46°. What is the measure of ZC'in
degrees?
Answer:
∠C' = 66°
Step-by-step explanation:
Because triangles ABC and A'B'C' are similar, their angles are still the same; only their side lengths are different, though still proportionate.
Hence, ∠A = ∠A', ∠B = ∠B', and ∠C = ∠C'.
Here, we're given that ∠A = 68, which means ∠A' = 68; we also know that ∠B = 46, so ∠B' = 46.
We want to find C', so remember that all angles in a triangle sum to 180:
∠A' + ∠B' + ∠C' = 180
68 + 46 + ∠C' = 180
114 + ∠C' = 180
∠C' = 66°
Answer:
∠C' = 66°
Step-by-step explanation:
∠A' + ∠B' + ∠C' = 180
68 + 46 + ∠C' = 180
114 + ∠C' = 180
∠C' = 66°
How many 2 letter permutations can be made from the word "letter"
Answer:
Brainliest for Brainliest
Step-by-step explanation:
Consider that a population of fruit flies grew in a 40-day experiment. Average rate of change: 9 flies/day. Find the average growth rate from day 30 to day05
Answer: Average Growth Rate is 24.19%
Step-by-step explanation:
Given that;
Average rate of change = 9 flies/day
Average growth rate of change = ?
we can determine the average growth rate of change from the expression;
Average Annual Growth Rate = [((Present Value - Past Value)^1/N) - 1 ] × 100%]
Now our present value; 30th day = 9 × 30 = 270
past value; 05th day = 9 × 05 = 45
the value of N = 30 - 5 = 25
so we substitute
Average Annual Growth Rate = [((270 - 45)^1/25) - 1 ] × 100%]
= ([1.2419 - 1) × 100]
= 24.19%
Therefore Average Growth Rate is 24.19%
If shoes were 15% off and you save nine dollars what was the original price
Divide amount saved by percentage:
9/0.15 = 60
The original price was $60
Answer:$60
Step-by-step explanation:
9/15=0.6
0.6=1%
0.6*10=$60
just trying to get this done to get some sleep, thank you!!
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the maximum height reached by the rocket, to the nearest tenth of a foot.
y=-16x^2+275x+127
Answer:
1308.6 feetStep-by-step explanation:
Given is the quadratic equation
y= -16x^2 + 275x + 127It has the maximum height at its vertex, x-coordinate of which is calculated by the formula:
x = -b/2ax = -275/2(-16) = 8.6 rounded to the nearest tenthsCalculating the highest point:
y = -16(8.6)^2 + 275(8.6) + 127 = 1308.6 feet rounded to the nearest tenthsWhich point is located at (Negative 0.5, 0.75)? On a coordinate plane, point B is 0.75 units to the right and 0.5 units down. Point G is 0.75 units to the right and 0.5 units up. Point M is 0.5 units to the left and 0.75 units down. Point Z is 0.5 units to the left and 0.75 units up. point B point G point M point Z hurry
Answer:
It’s b
Step-by-step explanation:
Which is point g
Answer:
Z
Step-by-step explanation:
You walk 1/5 miles to a clothing store. Than you walk another 1/4 miles to a shoe store. How many miles have you walked in all?
Answer: She has walked 9/20 miles in total
Step-by-step explanation:
1/5*4=4/20
1/4*5=5/20
4/20+5/20=9/20 miles
Please help with 5 :( I’ll mark u!
Answer:
m is slope, b is y=interecept and x and y is the coordinates
Step-by-step explanation: