Answer:
Measures of Variability: Range, Interquartile Range, Variance, and Standard Deviation. ... While a measure of central tendency describes the typical value, measures of variability define how far away the data points tend to fall from the center. We talk about variability in the context of a distribution of values.
The roots of 7x^2 + x - 5 = 0 are a and b. Compute (a - 4)(b - 4). Thank you!
Answer:
Step-by-step explanation:
a = 7 ; b = 1 ; c = -5
D = b² - 4ac
= 1 - 4*7*(-5)
= 1 + 140
= 141
x =( - b ± √D ) / 2a
= (-1 ± √141)/2*7
= (-1±√141) / 14
[tex]a = \frac{-1+\sqrt{141} }{14}= \frac{-1+11.87}{14}= \frac{10.87}{14}=0.78\\\\b = \frac{-1-\sqrt{141}}{14}= \frac{-1-11.87}{14}= \frac{-12.87}{14}=3.59\\\\\\[/tex]
(a -4 )(b -4) = (0.78 - 4)(-3.59-4) = (-3.22)(-7.59)
= 24.4398
pls help my computers about to die lol
Answer:
Elapsed 10 hours and 50 minutes
Step-by-step explanation:
So it's 5:25 pm to 4:15 am.
It goes by 50 mins to get from 5:25 to 6:15.
Now the hours.
It has passed 10 hours to get 6:15 pm to 4;15 am.
Which of the following graphs represents the equation below?
the graph the represents the equation is C.
Answer:
the answer is a on the image i just did what they said and got it wrong
Step-by-step explanation:
What type of transformation does shape A undergo to form shape B?
the answer is a 90° clockwise rotation
Solve for x.
3x + 10
3x +
x = [?]
Answer: x = 28
Step-by-step explanation:
3x+10+3x+2=180
6x+12=180
6x=168
x = 28
Answer:
x=28
Step-by-step explanation:
Since both lines going up are parallel, we can label the angle to the left of the angle with the measure of 3x+10 3x+2. These angles are supplementary as they are on different sides of the same line. This means that:
(3x+10)+(3x+2)=180
6x+12=180
6x=168
x=28
The equation y = –2x determines a linear function. Which table lists the coordinates of three ordered pairs that lie on the graph of this function?
Answer:
It b
Step-by-step explanation:
Answer:
It's A
Step-by-step explanation:
I did the test
(a) A Ship sails due north from point P to a point 0.4 km away. It then sails on a bearing
of 090° to a point R, 3 km from Q.
(1) Illustrate the information in a diagram.
Find the length PR
Answer:
write these time in words 3:45
What is the area of the figure shown below, in terms of π ?
(?+?π)square units
A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 97m long and 66m wide. What is the length of a training track running around the field? (Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.)
Answer:
401.24m
Step-by-step explanation:
the length is,
97x2 + 66x3.14
Use log 3 = .477 and log 6 =.778 to approximate the expression. log 2
Answer:
0.301
Step-by-step explanation:
Given that log 3 = .477 and log 6 =.778
Log 2
= log(6/3)
= log 6 - log 3
= 0.778 - 0.477
= 0.301
Hence the value of log 2 is 0.301
there are 3 method to show that 40 is the sum of two prime. among all the prime , find the difference between the two largest prime
Answer:
the difference is 39? for the answer
Step-by-step explanation:
The question is not exactly worded in such a way that one can tell how it should be answered.
If it means that 40 is the suim of 2 primes done 3 ways then the 3 answers are
17 + 23
37 + 3
11+ 29
So the difference between 37 and 29 = 8
There are no guarantees about this answer. I'm just doing it the way the question reads.
PLEASEEE I nEEED THE ANSWER TnT
NOTE: pls ignore another language just read the english one... ASAP
Answer:
x -1 1 3
y -2 -4 2
Step-by-step explanation:
y=x^2-x-4
when x=-1
y=(-1)^2-(-1)-4
y=1+1-4
y=-2
when x=1
y=(1)^2-(1)-4
y=1-1-4
y=-4
when x=3
y=(3)2-(3)-4
y=9-3-4
y=9-7
y=2
Using the graph, determine the coordinates of the vertex of the parabola.
Answer:
The coordinates of the vertex is (6,4).
Step-by-step explanation:
The vertex is the highest or lowest point on the parabola (curved line).
0.16 which number is in the hundreds place
Answer:
A decimal is always placed in this order :
thousands, hundreds, tens, separator, tenths, hundredths, thousandths.
In this case, the number 6 is in the hundredths place, and there is no HUNDREDS place.
Function A is a linear function. Which of the following functions has the same y-intercept as Function A?
Answer:
y = -4x - 5
Step-by-step explanation:
Which of the following rational functions is graphed below?
100
- 10
10
O A. Ax) = 3x=1
X-1
O B. F(x) =
(x - 3)(x + 1)
O C. F(X) =
(x − 3)(x + 1)
O D. F(x) = (x=3**
(+ 1)
Answer:
D
Step-by-step explanation:
D
The correct function of the graph is,
⇒ f (x) = (x - 1) / (x - 3) (x + 1)
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given that;
The graph of function is shown.
Here, The graph is not defined at x = 3, and x = - 1.
Hence, By option;
The correct function of the graph is,
⇒ f (x) = (x - 1) / (x - 3) (x + 1)
Thus, The correct function of the graph is,
⇒ f (x) = (x - 1) / (x - 3) (x + 1)
Learn more about the function visit:
https://brainly.com/question/11624077
#SPJ7
Convert r=5/3sinθ−cosθ to rectangular form.
Enter your answer in slope-intercept form by filling in the boxes. Enter values so that fractions are simplified.
Answer:
y = 1/3 x + 5/3
Step-by-step explanation:
For rectangular to polar
x = rcosθ ... 1
y = rsinθ ... 2
Given the expression
r=5/3sinθ−cosθ
Cross multiply
r(3sinθ−cosθ) = 5
Expand
3rsinθ−rcosθ = 5 ..3
Substitute 1 and 2 into 3
3y - x = 5
Write in slope intercept form
3y = x + 5
Divide through by 3;
3y/3 = x/3 + 5/3
y = x/3 + 5/3
y = 1/3 x + 5/3
Hence the expression in slope-intercept form is y = 1/3 x + 5/3
-4(7j+2=10 please help, please-4(7j+2=10 please help, please-4(7j+2=10 please help, please-4(7j+2=10 please help, please-4(7j+2=10 please help, please-4(7j+2=10 please help, please-4(7j+2=10 please help, please-4(7j+2=10 please help, please!
Answer:
x=12 . x=-12
Step-by-step explanation:
ONce you do the quadratic equasion than you move on to the solving part and from ther it is easy
if you give me the correct answer then I will mark as brainliest
It's is b cause it is and yeah
Answer:
a
Step-by-step explanation:
Please answer quickly, simple geometry
OPTION C IS THE CORRECT ANSWER.
Peggy had four times as many quarters as nickles. She had $2.10 in all. How many nickles and how many quarters did she have?
Which of the following equations could be used to solve the problem?
n+4n=2.10
n+4n=210
5n+100n=2.10
5n+100n=210
Answer:
the answer is the third option
Step-by-step explanation:
Need help rn please
Geometry
Answer:
Step-by-step explanation:
9). Dimensions of the logo = 4 inch by 6 inch
∵ 12 inches = 1 feet
∴ 1 inch = [tex]\frac{1}{12}[/tex] feet
Therefore, dimensions of the logo (in feet) will be,
[tex]\frac{4}{12}[/tex] feet by [tex]\frac{6}{12}[/tex] feet Or [tex]\frac{1}{3}[/tex] feet by [tex]\frac{1}{2}[/tex] feet
Dimensions of the logo which are 6 times larger than the original one.
Dimensions of the advertisement = [tex]\frac{6}{3}[/tex] feet by [tex]\frac{6}{2}[/tex] feet
= 2 feet by 3 feet
Area of the advertisement = 2 × 3
= 6 feet²
10). By the property of similar polygons,
"Corresponding sides of two similar polygons are proportional"
If the dimensions of two similar polygons are 'x' and 'kx'
Ratio of the perimeter of two polygons = [tex]\frac{\text{Perimeter of the image polygon}}{\text{Perimeter of the original polygon}}[/tex] = k
Ratio of area of two similar polygons = [tex]\frac{\text{Area of the image polygon}}{\text{Area of the original polygon}}[/tex] = k²
Ratio of volumes of two similar polygons = [tex]\frac{\text{Volume of the image polygon}}{\text{Volume of the original polygon}}[/tex] = k³
which of the following is the result of the equation below after completing the square and factoring x^2+3x+8=6
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{x^2 + 3x + 8 = 6}[/tex]
[tex]\large\textsf{SUBTRACT 6 to BOTH SIDES}[/tex]
[tex]\mathsf{x^2 + 3x + 8 - 6 = 6 - 6}[/tex]
[tex]\mathsf{8 - 6 = \boxed{\bf 2}}[/tex]
[tex]\mathsf{6 - 6 = \boxed{\bf 0}}[/tex]
[tex]\mathsf{x^2 + 3x + 2 = 0}[/tex]
[tex]\large\textsf{FACTOR the LEFT SIDE OF THE EQUATION}[/tex]
[tex]\mathsf{(x + 1)(x + 2) = 0}[/tex]
[tex]\large\textsf{SET EACH FACTORS to EQUAL 0}[/tex]
[tex]\mathsf{x + 1 = 0 \ OR \ x + 2 = 0}[/tex]
[tex]\large\textsf{SOLVE the EQUATIONS ABOVE and YOU HAVE YOUR x-values}[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf x = -1 or x = -2}}}\huge\checkmark[/tex]
[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
What line on a coordinate plane is called the x-axis? Horizontal or Vertical. Please respond as quick as possible
Answer:
it's called the horizontal line
Step-by-step explanation:
also known as y=0
Joel purchased an engagement ring with his credit card. His card has an APR of
13.99% and he must pay at least 3% of the balance at the end of each month. If
his carry-over balance for this month is $9,026.74 and he has made no
additional purchases, what would Joel's finance charge be at the end of the
month?
Round your answer to the nearest cent.
Answer:
What is your definition of finance charge?
the interest is $105.24
3% of what he owes (the minimum) is $273.96
Step-by-step explanation:
$9,026.74
+9,026.74 * (.1399/12) = $105.2367438
($9,026.74 + $105.24)*(.03) = $273.96
Answer:
33.19
Step-by-step explanation:
$2846.89
$2846.89 * (.1399/12) = 33.189992583333333333333333333333
Finance Charge is $33.19
Name three deficiency diseases associated with diet and state their causes
Answer:
Iron deficiency, hypoglycemia, and scurvy.
Step-by-step explanation:
Iron deficiency is the lack of iron in the blood, usually caused by blood loss. Because the body doesn't produce iron, people need to consume items with iron to rise up the amount of iron.
Hypoglycemia is the lack of blood sugar (known as glucose), people who are diabetic or drink excessive alcohol can have hypoglycemia. People would have to consume more glucose or take insulin shots to get the amount back to normal.
Scurvy is caused by the lack of Vitamin C (found in fruits and vegetables) , usually within 3 months.
how to prove sinA+sin2A/1+cosA+cos2A=tanA
Answer:
my answer is in this picture. sorry about my handwriting.
Help please I’ll give you the brainliest I really got to get this done
Answer:
56
Step-by-step explanation:
what is f(0) for the function f(x) =2x+3
Answer:
3
Step-by-step explanation:
f(x) =2x+3
Let x=0
f(0) =2*0+3
Multiply
f(0) =0+3
Add
f(0) =3
Answer:
3
step-by-step explanation
f ( x ) = 2 x + 3
f ( 0 ) = 2 × 0 + 3 .. ( f ( x = 0 ) - given )
multiply
f ( 0 ) = 0 + 3
Add the numbers
f ( 0 ) = 3
A squirrel has a 75% chance of finding food when it is sunny, but only a 25% chance of finding food when it is raining. Suppose there is a 50% chance of rain. What is the probability that a squirrel will find food?
Answer:
The probability is 0.5
Step-by-step explanation:
If there is a 50% chance of rain, then there is also a 50% chance of not rain.
Now let's write all the probabilities:
(just take the percentage and divide it by 100%)
Probability of rain: p = (50%/100%) = 0.5
probabiity for the squirrel to find food when it rains: q = (25%/100%) = 0.25
Then the joint probability, this is, the probability that rains and that the squirrel finds food, is equal to the product of these two probabilities, this is:
P1 = 0.5*0.25 = 0.125
And we also have the case where there is no rain.
Probability that does not rain: p' = (50%/100%) = 0.5
Probability that the squirrel finds food if doesn't rain: q = (75%/100%) = 0.75
The joint probability is:
P2 = 0.5*0.75 = 0.375
The total probability that the squirrel will find food is equal to the sum of the probabilities of the squirrel finding food if there is rain, and the probability of the squirrel finding food if there isn't rain, so the total probability is:
P = P1 + P2 = 0.125 + 0.375 = 0.5