Answer:
44.16 ; 4.88
Step-by-step explanation:
Recall :
Mean, μ = np
Sample size, n = 96
Sample proportion, p = 0.46
For the mean :
Mean, μ = 96 * 0.46
0.46 * 96 = 44.16
The standard deviation :
σ = √npq
q = 1 - p = 1 - 0.46 = 0.54
σ = √npq = √(96 * 0.46 * 0.54)
σ = √23.8464
σ = 4.88
Factor 3x2 + 42x + 147 completely.
A) 3(x + 1)(x + 49)
B) (3x + 21)(x + 7)
C) 3(x + 7)2
D) (3x + 7)2
Plz Help!! I’m stuck on this.
Answer:
1. (5,7)
2. (8,0)
3. (2,1)
4. (4,22)
5. (-3,78)
6. (2,10)
7. (3,9)
8. (-2,1)
Step-by-step explanation:
Mario made this model to find the 3 digit number and a 1 digit number what multiplication sentence represents marios model
Answer:
Step-by-step explanation:
Ewww
Solve for x.
x + 14
5x - 74
x = [?]
Answer:
[tex]\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}[/tex]
x + 14 = 5x - 74 (corresponding angles are equal to each other)
[tex]x + 14 = 5x - 74 \\ 14 + 74 = 5x - x \\ 88 = 4x \\ \frac{88}{4} = x \\ 22 = x[/tex]
Answer:
22
Step-by-step explanation:
Angles x + 14 and 5x - 74 are adjacent angles.
Adjacent angles are equal.
5x - 74 = x + 14
5x - x = 14 + 74
4x = 88
x = 88 / 4
x = 22
y=-1/4(x-10)^2+28 write in standard form
Answer:
[tex]y = -\frac{1}{4}x^{2} + 5x + 3[/tex]
what is 30x + 40 factored
Answer:
1 0 ( 3 + 4 )
Step-by-step explanation:
Find an equation for the inverse for each of the following relations.
4. y = x - 5
Answer:
y = x + 5
Step-by-step explanation:
We need to find the inverse of the given relation . Firstly replace x with y and then solve for y to get the inverse . We have ,
=> y = x - 5
Replacing x and y=> x = y - 5
=> y = x + 5
Hence the Inverse of the relation is y = x + 5 .(no links please and than you! :))
Answer:
Line D represents a proportional relationship.
Step-by-step explanation:
In an easy way to explain what a proportional relationship is, it is basically a line graph that passes through the origin point. When a line graph passes through the origin point (0,0), it is proportional.
Other graphs do not intersect the origin points so they are not proportional.
Answer:
Line D represents a proportional relationship.
Step-by-step explanation:
In an easy way to explain what a proportional relationship is, it is basically a line graph that passes through the origin point. When a line graph passes through the origin point (0,0), it is proportional.
Other graphs do not intersect the origin points so they are not proportional.
which set of side lengths can form a triangle?
А: 2 cm, 2cm. 6 cm
B:3 cm 6 cm, 9 cm
C:4 cm, 8 cm, 5 cm
D:8 cm, 3 cm, 4 cm
Answer:
C:4 cm, 8 cm, 5 cm
Step-by-step explanation:
sum of length of any two sides of a triangle will be larger than the third side.
Help I’m stuck on this
Answer:
49 is the answer.
Step-by-step explanation:
[tex] - 11 \frac{2}{3} \times - 4 \frac{1}{5} [/tex]
[tex] - \frac{35}{3} \times - \frac{21}{5} [/tex]
[tex] - 7 \times - 7 = 49[/tex]
the diameter of a sphere is 42 centimeters. find the surface area to the nearest tenth
The speed you are going determines the distance you travel before coming to a complete stop after pressing the brake.
Use the computer outputs, scatterplots, and residual plots to determine which statements are true. Check all that apply.
The linear model is most appropriate.
The power model is most appropriate.
Models are always improved by transformations.
The r2 on the linear model is stronger.
The residual plot is more patterned on the linear model.
Answer:
the linear model is most appropriate, the r2 on the linear model is stronger
Step-by-step explanation:
did it on edge
Answer:
The linear model is most appropriate; The r^2 on the linear model is stronger.
Step-by-step explanation:
When compared side bu side you can see the differences.
The school that Emily goes to is selling tickets to the annual dance competition.
On the first day of ticket sales the school sold 3 senior citizen tickets and 14 child tickets for a total of $145.
The school took in $178 on the second day by selling 6 senior citizen tickets and 14 child tickets.
Find the price of a senior citizen ticket and the price of a child ticket.
Answer:
price for senior citizen is $11
price for child ticket is $8
Click on three points that are solutions to y = 2x + 1.
A. (0,0)
B. (0, 1)
C. (1,0)
D. (1,3)
E. (2,5)
F. (4,8)
Answer:
B, D, E
Step-by-step explanation:
Ms. Silvia earns $3 every time she sells a cupcake. If she earns $15, how many cupcakes did she sell?
Answer:
Okay very easy, The answer is: She sold 5 cupcakes.
Step-by-step explanation:
She sold 5 cupcakes
Because if you add 3 till you get to 15 you get 5
HELP ME PLEASEEEEEEEEEEEE
Answer:
c
Step-by-step explanation:
6x9=54
54/2= 27
Answer:
27 square units
Step-by-step explanation:
Area of a triangle = (1/2)(base)(height)
A = 1/2(6)(9)
A = 1/2(54)
A = 27
if you triple the number of times elizabeth has cooked dinner for her family and then add for you get the number of times her sister joy has coached the family's thinner of joy has cut the family's dinner 25 times how many times did has elizabeth cook dinner?
Answer:
Step-by-step explanation:
She has cooked 75 times
Tessellations
How do you distinguish between problems requiring area formulas and problems requiring perimeter formulas?
a. area - space inside a figure perimeter - distance around figure
b. area - distance around figure perimeter - space inside a figure
c. area - twice the width plus twice the length perimeter - length times width
d. area - the sum of all sides perimeter - 2 times the diagonal of the figure
Please select the best answer from the best choices provided
Answer:
A. Area - space inside a figure perimeter - distance around figure
Step-by-step explanation:
I calculated it logically
a polygon is shown what is the measure of U
Answer:
120
Step-by-step explanation:
That's a guess, but it's the most logical one.
WHATS THE ANSWER?? answer ASAP NO FILE AT ALL
Answer:
B
Step-by-step explanation:
Answer:
The answer would be B!
A population of 1,500 insects grows exponentially by a factor of 3 every week. Select all equations that represent or approximate the population, p. as a function of time in days.t, since the population was 1,500.
The required equation that represent or approximate the population is:
[tex]\mathrm P(t) = 1,500 \times 3^{(1/7)}^t[/tex]
To represent the population, P, as a function of time in days, t, we need to find an exponential growth equation.
Since the population grows exponentially by a factor of 3 every week, we need to convert the weekly growth to daily growth.
Let's break down the problem step by step:
The population grows by a factor of 3 every week.There are 7 days in a week, so the daily growth factor can be calculated by taking the 7th root of 3. (Growth factor per day = [tex]3^{(1/7)[/tex])The initial population is 1,500.Now, we can represent the population, P, as a function of time, t, using the exponential growth equation:
[tex]\mathrm P(t) = \mathrm{Initial \ Population} \times \mathrm {Growth \ Factor}^t[/tex]
where:
Initial Population (Po) = 1,500 (given)
Growth Factor per day = [tex]3^{(1/7)[/tex]
So, the equation representing the population as a function of time in days is:
[tex]\mathrm P(t) = 1,500 \times 3^{(1/7)}^t[/tex]
Hence the required equation that represent or approximate the population is:
[tex]\mathrm P(t) = 1,500 \times 3^{(1/7)}^t[/tex]
Learn more about exponential growth click;
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What is the graph of the solution for y+10>12?
Answer:
Your answer is B.
Step-by-step explanation:
Find the area of the parallaogram to the nearest tenth
Answer:
sorry I think yr question is incomplete.
u forget to add picture.
stay safe healthy and happy.Convert 15L 25ml into litres
Answer:
15.025 L
Step-by-step explanation:
25 mL = 25 ml * 1 L/1000 mL = 0.025 L
15 L + 0.025 L = 15.025 L
A bag contains 4 yellow balls, 5 red balls, and 6 blue balls.
Part A: What is the probability of picking a yellow ball from the bag?
Part B: what is the probability of picking a blue ball from the bag?
Part C What is the probability of picking a yellow ball and then a blue ball after
replacement? Determine if the two events are independent events.
Answer:
A) The probability of picking a yellow ball from the bag is 26.66%.
B) The probability of picking a blue ball from the bag is 40%.
C) The probability of picking a yellow ball and then a blue ball is 11.42%.
Step-by-step explanation:
Since a bag contains 4 yellow balls, 5 red balls, and 6 blue balls, to determine what is the probability of picking a yellow ball from the bag, what is the probability of picking a blue ball from the bag and what is the probability of picking a yellow ball and then a blue ball after replacement, the following calculations must be performed:
A)
4 + 5 + 6 = 100
4 = X
15 = 100
4 = X
4 x 100/15 = X
400/15 = X
26.66 = X
Therefore, the probability of picking a yellow ball from the bag is 26.66%.
B)
15 = 100
6 = X
6 x 100/15 = X
600/15 = X
40 = X
Therefore, the probability of picking a blue ball from the bag is 40%.
C)
14 = 100
6 = X
6 x 100/14 = X
600/14 = X
42.85 = X
0.2666 x 0.4285 = X
0.1142 = X
Therefore, the probability of picking a yellow ball and then a blue ball is 11.42%.
Help! PLEASEEE! THANK YOU FOR HELPING BTW!
Answer:
Use the slope formula and slope-intercept form y = mx + b to find the equation you get:
y = 8x
If thats not what your looking for then for every 1 (x) you get 8 (y)
Step-by-step explanation:
What is the slope of the following table?
Answer:
slope: 5/2
Step-by-step explanation:
Rosa had 592 stickers. She gave 212 stickers to Meg.
Which is the best estimate for the number of stickers Rosa has left?
A 200
B. 300
C. 400
D.700
E. 800
Answer: I need help with this as fast as someone can. PLS let me know who to do it
Step-by-step explanation:
It was estimated that 650 people would attend bowling night, but 676 people actually attended.
What is the percent error, to the nearest percent of the estimate? Enter the answer in the box.
The estimate's percent error is 4%, to the closest percentage.
What is percentage?A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.
Find the difference between the estimate and the actual value:
Actual value - Estimated value = 676 - 650 = 26
The absolute value of the difference is 26, indicating that the actual value exceeded the estimated value.
Next, we need to find the relative error, which is the difference divided by the estimated value:
Relative error = Difference / Estimated value = 26 / 650
Finally, we can convert the relative error to a percentage by multiplying it by 100:
Percent error = Relative error x 100 = 26 / 650 x 100 ≈ 4
Therefore, the percent error, to the nearest percent, of the estimate is 4%.
Learn more about percentages here:
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Ronnie's Rentals
charges $25 plus $15 per hour to rent a
chain saw. David rented a chain saw for
5 hours. Write an expression to show how
you could calculate the total amount
David paid.
191
Answer:
P = 25 + (15)n
Total amount paid by David = $100
Step-by-step explanation:
Given:
Fixed cost of renting chain saw = $25
Variable cost of renting chain saw = $15 per hour
Time taken = 5 hour
Find;
Total amount paid by David
Computation:
Assume;
Total amount paid by David = P
Time taken = n
So,
P = 25 + (15)n
P = 25 + (15)(5)
P = 25 + 75
P = 100
Total amount paid by David = $100