Answer:
i think B
Step-by-step explanation:
because is right
Answer:
D
Step-by-step explanation:
[tex]y=x^2-11x+7[/tex]
we need to calculate [tex]\Delta = \sqrt{b^2-4ac}[/tex]
and if [tex]\Delta[/tex] is positive we have 2 distinct roots
if [tex]\Delta[/tex] is 0 then we have two identical roots.
If [tex]\Delta[/tex] < 0 then we have two complex solutions.
in this case, [tex]\Delta = \sqrt{11^2-4*7} = \sqrt{121-28}>0[/tex]
the answer is D
A study examined blood pressure rates during three specific times in a 24 hour period within three groups. Which is the appropriate statistic to use in analysis
The appropriate statistic to use in the analysis is that of repeated measures.
Repeated measures is a term for a way of collecting, analyzing, and evaluating statistics that involve multiple measures of the same variable or Subject.
According to the above, repeated measures are the appropriate statistic for the analysis of the blood pressure rate during three specific moments.
Note: This question is incomplete because the options are missing. Here are the options.
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I NEED HELP ASAP PLEASE SHHSBSVSBAHA
Answer: 5 : 3, 10: 6, 25: 15
Step-by-step explanation: We know from our original ratio that for every 5 peanuts, we have 3 cashews. Therefore 5:3, to get to 6 from 3, we have to double it, and whatever we do to the last number, we have to do to the first, so we get 10:6. We can continue this process for 15:9, 20:12, 25:15
A survey was given to people who owned a certain type if car
Answer:
hi iu C hi TC x tex t TC TC TC TC TC u TC u TC x itu TC
A quick survey of peanut butter prices had standard deviation and mean of $0.26 and $3.68, respectively. Compute the area for a peanut butter jar costing more than $4.25.
The area for a peanut butter jar costing more than $4.25 is 0.0143.
Z score is used to determine by how many standard deviations the raw score is above or below the mean, The z score is given by:
[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x= raw\ score, \mu=mean, \sigma=standard\ deviation[/tex]
Given that μ = 3.68, σ = 0.26
For x > 4.25:
[tex]z=\frac{4.25-3.68}{0.26} =2.19[/tex]
From the normal distribution table, P(z > 2.19) = 1 - P(z < 2.19) = 1 - 0.9857 = 0.0143 = 1.43%
The area for a peanut butter jar costing more than $4.25 is 0.0143.
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What is the annual premium for $75,000, 10 year life insurance policy for a 40 year old male (Put answer to two decimal places)?
Life Insurance Chart
Age at Issue Term Insurance
Male Fem 10 year 20 year Straight Life
20 23 $2.50 $3.80 $12.67
25 28 $3.25 $5.84 $15.66
30 33 $3.82 $7.93 $18.98
35 38 $4.55 $10.33 $22.38
40 43 $5.78 $13.38 $28.77
45 48 $7.53 $17.56 $31.90
Answer:
About $437.25
Step-by-step explanation:
Using the table which gives the annual premium per $1000; the premium paid annually by the 40 year old male is $437.23
The total annual premium = $75000
Using the data in the table :
Annual premium per $1000 of coverage for a 40-year old male with a 10 - years life insurance policy = $5.83
The annual premium for $75,000 ;
Premium per $1000 × ($75000/$1000)
Annual premium = $5.83 × ($75,000/1000)
Annual premium = $5.83 × 75 = $437.25
Hence, the annual premium for the lifetime insurance based on the stated conditions is $437.25
What is the simplest form of
(
3
√
7
)
2
?
42
42
63
63
9
√
7
9 7
6
√
14
Answer:
63
Step-by-step explanation:
(3[tex]\sqrt{7}[/tex] )²
= 3 × 3 × [tex]\sqrt{7}[/tex] × [tex]\sqrt{7}[/tex]
= 9 × 7
= 63
HELP PLS, 30 POINTS.ANSWER CORRECTLY, I ONLY HAVE 1 ATTEMPT AND I NEED HELP.
I'm stuck and I can't tell if it's AAS or ASA
Answer:
AAS
Step-by-step explanation:
ASA would be where lines AB and DC were given to be congruent
A school photographer just bought a new memory card for her camera. She took 2 pictures
to check that everything is working properly. Now that it's picture day, she expects to take 5
pictures of each student.
Write an equation that shows the relationship between the number of students photographed,
x, and the total number of pictures on the memory card, y.
00
Answer:
5x+2
Step-by-step explanation:
the pattern is
y is 5 times x plus 2
y=5x+2
The solution is, y=5x+2, an equation that shows the relationship between the number of students photographed, x, and the total number of pictures on the memory card, y.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.
here, we have,
She took 2 pictures to check that everything is working properly.
Now that it's picture day, she expects to take 5 pictures of each student.
now, we get,
the pattern is
y is 5 times x plus 2
y=5x+2
Hence, The solution is, y=5x+2, an equation that shows the relationship between the number of students photographed, x, and the total number of pictures on the memory card, y.
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Catherine graphed point p on the cortinet grid she will graph Q at the location that is 4 units left and 3 units up from point p :which ordered pair could represent the location of point Q F(-6,-1) G(-6,1). H (3,-2). J(2,1
Answer:
Any answer option is possible with the given information as we are not told where P is located.
Step-by-step explanation:
Here are the options:
IF P = (-2, -4) THEN Q = (-6, -1)
IF P = (-2, -2) THEN Q = (-6, 1)
IF P = (7, -5) THEN Q = (3, -2)
IF P = (6, -2) THEN Q = (2, 1)
i need help with the sudoku
Answer:
see picture
Step-by-step explanation:
Could someone explain this please?
A bag of kale chips weighs 5.336 ounces. Round the weight of the bag to the nearest tenth of an ounce.
Answer:
5.3
Step-by-step explanation:
The tenth means the first decimal place. The second 3 shows us that we need to round down, so the answer is just 5.3
Answer:
The answer is 5.3
Step-by-step explanation:
For the animal shelter, Elena Nppurchased
five dog leashes for $9.98 each, five bags
of dog food for $24.99 each and five dog
crates for x dollars each. Which equation
could be used to determine Elena's total
cost, C?
A. 5 + $9.98 + 5 + $24.99 = C
$9.98 + $24.99
В.
=C
5
C. ($9.98 + $24.99 + x)5 = C
D. 5+ ($9.98 - $24.99 + x) = C
Elena's total cost (C) is 5(9.98 + 24.99 + x)
Since each dog leashes cost $9.98, each bag of dog food cost $24.99 and each crate of egg cost $x, hence:
Total cost (C) = 5 * $9.98 + (5 * 24.99) + (5 * x)
C = 5(9.98 + 24.99 + x)
Therefore Elena's total cost (C) is 5(9.98 + 24.99 + x)
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Find the value of x……
7c
2
−2c−15=
\,\,-c^2
−c
2
?........................................
If the probability that it will snow on Monday is 8/9 and the probability that it will snow on Tuesday is 3/16, find the
betto
probability that it does not snow either day.
saltres
Give the probability as a simplified fraction.
Answer:
1/6
Step-by-step explanation:
Probability that it does not snow either day is [tex]\frac{13}{144}[/tex]
What is probability?"Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are."
We have
The Probability that it will snow on Monday is [tex]\frac{8}{9}[/tex]
The Probability that it will snow on Tuesday is [tex]\frac{3}{16}[/tex]
According to the question,
The probability that it does not snow on Monday = 1 - [tex]\frac{8}{9}[/tex] = [tex]\frac{1}{9}[/tex]
The probability that it does not snow on Tuesday = 1 - [tex]\frac{3}{16}[/tex] = [tex]\frac{13}{16}[/tex]
So, the probability that it does not snow either day
= [tex]\frac{1}{9}[/tex] ×[tex]\frac{13}{16}[/tex]
= [tex]\frac{13}{144}[/tex]
Hence, Probability that it does not snow either day is [tex]\frac{13}{144}[/tex] .
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The difference between two whole numbers is 8. Twice the smaller number is 4 more than the larger number.
What is the smaller number?
Enter your answer in the box.
smaller number =
Step-by-step explanation:
the numbers : x, y
x - y = 8
2y = x + 4
2y - 4 = x
we use the last equation in the first :
2y - 4 - y = 8
y - 4 = 8
y = 12
x = 2y - 4 = 2×12 - 4 = 24 - 4 = 20
the smaller number is 12.
The value of the smaller number will be 12.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The difference between two whole numbers is 8.
And, Twice the smaller number is 4 more than the larger number.
Now,
Let two numbers are x and y.
Where, x is larger number and y is smaller number.
Since, The difference between two whole numbers is 8.
Hence, We get;
⇒ x - y = 8
⇒ x = 8 + y ..(i)
And, Twice the smaller number is 4 more than the larger number.
So, We get;
⇒ 2y = 4 + x ..(ii)
Substitute the value of x from (i) in above equation, we get;
⇒ 2y = 4 + 8 + y
Solve for y as;
⇒ 2y - y = 12
⇒ y = 12
Thus, The value of the smaller number will be 12.
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Melinda is planning for retirement so she makes monthly deposits of $420 in an account earning 5% compounded monthly for 30 years.
(a) Find the amount that Melinda has in the account in 30 years.
$?
(b) Once she retires she will make monthly withdraws on the account for 20 years. Assuming that once she starts withdrawing on the account, she will earn 4% compounded monthly. Find the amount that she can withdraw every month.
$?
A line passes through the points (3,21) and (8,26) Write a linear function rule in terms of x and y for this line.
Answer:
y = x+18
Step-by-step explanation:
I'm not too sure about the terminology but I hope this helps!
In order to find the equation of any line, one can use the equation
m (gradient) = (y1 – y2 ) ÷ (x1 – x2)(3,21) is the first named point; therefore, 3=x1 and 21=y1
Following the same logic, for the second point, 8=x2 and 26=y2.
Next, substitute these values into the equation above:
m = (21-26)÷(3-8)
m = -5/-5 = 1
Therefore, the gradient of this line is 1. So far our y=mx+c line equation has this information:
y=1x+c
Plugging in x and y values gives the y intercept (c):
21=3+c (the values from point (8,26) can also be used here)
c = 18
Therefore, the line equation is y = x + 18
As a function, this could be f(x) = x + 18 (although I'm not too sure about this part!)
I hope this helped.
Determine la moda, la mediana, la media aritmetica, el recorrido, la desvacion, la viarianza y las desviacion tipica de cada una de estas distribuciones de datos, previa confeccion de las tablas adecuadas. -calcule el coeficiente de variacion y opine sobre la dispersion de los datos.
a. x1. 1, 2, 3, 4, 5, 6, 7, 8, 9; n1. 12, 15, 9, 18, 17, 15, 11, 6, 8. b. x1. 18, 19, 20, 21, 22, 23, 24, 25. n1. 3, 12, 54, 66, 57, 55, 18, 11.
Answer:
a
Step-by-step explanation:
What Negative number has an absolute value of 4.25
Answer:
-4.25
Step-by-step explanation:
Answer:
-4.25
Step-by-step explanation:
absolute value is just distance from zero, so all you have to do is add the negative sign.
You take your mom out for lunch. The bill came to $28 and you would like to leave a 15% tip. What is the total cost?
Answer:
$32.2
Step-by-step explanation:
28/100×15%= 32.2
Each Minitues has 60 seconds in it. How many second are in 3 minutes and 25 seconds
Answer:
205
Step-by-step explanation:
3×60 + 25 = 205
therefore 3 minutes and 25 seconds is 205 seconds
Use the metric converter to complete the following statement.
Find the sum of 2-3 and 2- xto determine which expression is equalto 23-1)
Help please!!!
Answer: 2-3 is 1
Step-by-step explanation:
The angle measure for 85 is
Answer:
5 degrees
Step-by-step explanation:
Complement for 85 will be adding 5 more degrees to make 90 degree angle (right angle)
Three-fourths of the 64 counties voted snickers as the best candy bar. How many counties voted snickers the best candy bar?
Multiply total votes by the fraction:
64 x 3/4 = (64 x 3) / 4 = 192/4 = 48
Answer: 48
Answer:
48
Step-by-step explanation:
64×3/4 three fourths
=48
-8x + 40 > -16 i need help with this pls
Answer:
x<7
-8x + 56 = -8 • (x - 7)
Divide both sides by -8
Add 7 to both sides
x<7
What is the y intercept
Answer:
There is not a y-intercept
Step-by-step explanation:
The line does not cross y=0
Given that m<2=3x - 11 and m<5 = 7x + 46 use the figure to answer question 1-3
Applying the relationship of angle pairs, THE VALUE OF X AND THE GIVEN ANGLE MEASURES ARE:
x = 14.5 (Blue)m<5 = 147.5 degrees (Yellow)m<4 = 32.5 degrees (Pink)Given:
m<2 = 3x - 11
m<5 = 7x + 46
Thus, find x:
<2 and <5 are same-side interior angles
Therefore:m<2 + m<5 = 180 degrees (supplementary)
Substitute[tex]3x - 11 + 7x + 46 = 180\\[/tex]
Collect like terms[tex]10x +35 = 180\\\\10x = 180 - 35\\\\10x = 145\\\\\mathbf{x = 14.5}[/tex](Blue)
Find m<5:
Plug in the value of x into 7x + 46
[tex]m \angle 5 = 7(14.5) + 46\\\\\mathbf{m \angle 5 = 147.5^{\circ}}[/tex](Yellow)
Find <4:
m<4 = m<2 (vertical angles are congruent)
Substitutem<4 = 3x - 11
Plug in the value of xm<4 = 3(14.5) - 11
m<4 = 32.5 degrees (Pink)
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