Answer:
(114.123, 115.877)
Step-by-step explanation:
Given that :
Sample size (n) = 500
Mean = 23% of 500 = 115
Standard deviation (s) = 2% of 500 = 10
α = 95%
Zcritical at 95% = 1.96
Confidence interval = Mean ± Error
Error = Zcritical * standard deviation /sqrt (n)
Error = 1.96 * 10/sqrt(500)
Error = 0.8765386
Lower boundary : 115 - 0.8765386 = 114.1234614
Upper boundary : 115 + 0.8765386 = 115.8765386
(114.123, 115.877)
A poster of the detroit lions football players uses a scale of 4 inches= 3 feet. If quarterback Matthew stafford is 8 1/2 inches tall on the poster, find his actual height.
Answer:
The actual height = 6.38 feet
Step-by-step explanation:
Given that a poster of the detroit lions football players uses a scale
of 4 inches = 3 feet
so
1 inch = 3/4 feetGiven that the poster's length:
[tex]8\frac{1}{2}=\frac{17}{2}=8.5[/tex] inch
We need to determine the actual height if quarterback Matthew Stafford is 8 1/2 inches tall on the poster.As 1 inch = 3/4 feetThus, we need to multiply 8.5 inches by 3/4 to determine the actual height of the player.
Actual height = 8.5 × 3/4 feet
= 6.38 feet
Therefore, the actual height = 6.38 feet
Find a formula for the function f(x) such that f′(x)=sin(x) and f(2)=5.
Answer: f(x) = -cos(x) + 4.584
Step-by-step explanation:
we know that f'(x) = sin(x)
if we integrate that, we get:
f(x) = -cos(x) + C
Where C is a constant of integration.
And we also want that:
f(2) = 5
with that relationship we can find the value of C.
f(2) = 5 = -cos(2) + C
(The calculation is done in radians)
5 = -(-0.416) + C
5 - 0.416 = C = 4.584
Then the function is:
f(x) = -cos(x) + 4.584
What’s the answer to this problem?
Answer: y − 6 = 5 ⋅ ( x − 1 )
Step-by-step explanation:
Answer: y − 6 = 5 ⋅ ( x − 1 )
Step-by-step explanation: becuase i got the awnser right on the question
find the missing measures
Answer:
8 cm and 28 cm
Step-by-step explanation:
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height )
(i)
Here A = 48, b = AB and h = DE = 6 , then
AB × 6 = 48 ( divide both sides by 6 )
AB = 8 cm
(ii)
Here A = 252, b = PQ = 9 and h = RT , then
9 × RT = 252 ( divide both sides by 9 )
RT = 28 cm
Please help me on number (15) Will mark brainliest
Answer:
that will be 12
Step-by-step explanation:
will mark brainliest with ONE question!!^^^^^^^^
Answer:
c + 0.5b =700 and c + b =1,000 I think
Answer:
c+b=1000
Step-by-step explanation:
This problem can be solved by process of elimination. If the end weight is 1000, then at the equal sign, it should also be 1000. Since the last option is the only one with 1000, then it would be the only correct option.
Solve 3/4x = 7 28/ 3
3/4x=728/3
x=728/3×4/3
x=32.556
HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN
BUT I'M NOT SURE IF IT IS CORRECT
Marking people as brainlist are the triangles congruent?
Answer:
congruent by S.A.S. hope it helps if you could give me brainliest it would help. THANKS
Step-by-step explanation:
Rachel packed supplies for the sixth grade picnic. For every 11 forks she packed, she packed 8 spoons. Rachel packed a total of 110 forks. How many spoons did she pack?
Answer:
80
Step-by-step explanation:
The ratio is 11:8 multiply it by 10 it turns into 110:80
Answer:
80
Step-by-step explanation:
because that's the answer
If u answer correctly I will give brailiest
For any number n>1, is
|([frac{7}{25} + frac{24}{25}i)^n|
A) Greater than 1
B) Less than 1
C) Equal to 1
Answer:
$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad\ frac{a}{c}\pm\frac{b}{c}=\frac{a\pm\:b}{c}$ Since the denominators are equal ...
Step-by-step explanation:
Addition and subtraction of complex numbers works in a similar way to ... Example 1- Addition & Subtraction. a. ... (6+3)+(7−5)j=9+2j ... 25 + 30j + 9(-1)` ... our final answer is real only (it does not contain any imaginary terms. ... above - we multiply top and bottom of the fraction by the conjugate of the bottom.
A four-person relay team completed a race in 60.4 seconds. On average, what was each runner's time?
Answer:
Each person did 15.1 seconds.
Step-by-step explanation: Just divide 60.4 seconds by 4 for the number of runners.
Yo can somebody please help me with this math problem
Answer:
what is the problem it doesn't show anything
Simplify 12x-24 into simplest form
Given the point A(3,4) find the coordinates of three other point to create a parallelogram ABCD that isnt a rectangle or square
Answer:
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Please use the graphing method to solve the following system of the linear equation:
Answer: I think c but im not too sure
Step-by-step explanation;
Answer:
B (4,4)
Step-by-step explanation:
if you go to desmos.com, click on graphic calculator and put your equations in you will see they intersect at point (4,4)
Can someone help me on this
Answer:
a=3*3*3*3*3=243
b=2*2*2*2=16
c=10*10*10=1000
Step-by-step explanation:
Plsss help I’ll give u brainlest and 10 points
Answer:
b
Step-by-step explanation:
d is your inital amount. Then you spend $7, so you subtract 7. That is greater than or equal to 50.
What is the slope of a line perpendicular to the line whose equation is
10x – 8y = -80. Fully reduce your answer.
Answer:
-4/5
Step-by-step explanation:
write the given equation in y=mx+b form, where m is the slope
10x-8y=-80
-8y= -10x-80 divide both sides by -8
y=(10/8)x+10
y=(5/4)x+10
m= 5/4 is the slope of the given function
the slope of an equation that is perpendicular is the negative reciprocal of the given one so is
m= -4/5
which of these context describes a situation that is likely?
Please help I’m really stressed
can i have some help
Answer:
one solution
Step-by-step explanation:
once you solve it, x equals 0
2p + 3w = 7.25 whats p
Ill give Brainliest!!! PLease THIS IS MY LAST QUESTION, I HAVE 5 MINUTES LEFT!!!
Answer:
y=95x+50
Step-by-step explanation:
What is the scale factor of AABC to AXYZ?
B
3
35
Y
60
-350
45
9
12
48°
96°
48°
35
x 7 Z
O A. 5
d
B.
1
3
-
C. 3
D.
011
The scale factor from triangles ABC to XYZ IS 6.
Option A is the correct answer.
What is a scale factor?A scale factor is defined as the ratio between the scale of a given original object and a new object,
We have,
ΔABC and ΔXYZ
The corresponding sides are:
AB = XY
BC = YZ
AC = XZ
Now,
We see that,
XY = 6 x AB
YZ = 6 x BC
XZ = 6 x AC
So,
The scale factor is 6.
Thus,
The scale factor from triangles ABC to XYZ IS 6.
Learn more about scale factors here:
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Solve the following equation for x give your answer in simplified form 1/4x +3y =8
which point is closer to the x-axis (0.7, 21) or (0.77, 10)
Answer:
As
[tex]d_A=21[/tex][tex]d_B=10[/tex]Therefore, point B is closer to the x-axis.
Please check the attached graph.
Step-by-step explanation:
We know that:
x-coordinate of any point P(x, y) gives its distance of that point from the y-axisy-coordinate of any point P(x, y) gives its distance of that point from the x-axisGiven the points
(0.7, 21)(0.77, 10)Let us say
A(0.7, 21)B(0.77, 10)FOR POINT A(0, 7)
As the y-coordinate of point A(0.7, 21) ⇒ y = 21We know that the y-coordinate of any point P(x, y) gives its distance of that point from the x-axis
Thus, the distance of point A(0.7, 21) from the y-axis is 21 units.
i.e.
[tex]d_A=21[/tex]
FOR POINT B(0.77, 10)
As the y-coordinate of point A(0.77, 10) ⇒ y = 10We know that the y-coordinate of any point P(x, y) gives its distance of that point from the x-axis
Thus, the distance of point B(0, 7) from the y-axis is 10 units.
i.e.
[tex]d_B=10[/tex]
As
[tex]d_A=21[/tex][tex]d_B=10[/tex]Therefore, point B is closer to the x-axis.
Please check the attached graph.
Answer:
a=10
b=20
Step-by-step explanation:
Write the word sentence as an equation. Then solve. A number divided by -9 is -16.
Answer:
X÷-9=-16 x=144
what is the slope of a line perpendicular to the line y=-1/4x-1
slope of line perpendicular to the line y=-1/4x-1 is 4.
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
Let us write the given equation y=-1/4x-1
If we compare the given equation with slope intercept form
We get to know slope of line m is -1/4.
It two lines are perpendicular then the product of their slopes will be -1
-1/4×m=-1
m=4
Hence slope of line perpendicular to the line y=-1/4x-1 is 4.
To learn more on slope of line click:
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subtraction property of equality ur welcome x3
Answer:
wut????????
Step-by-step explanation:
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Find the measures of the angles of a triangle of the measure of one angle is three times the measure of a second angle and the third angle measures five times the second angle decreased by 90
Answer:
hii
x=30
Step-by-step explanation:
x+3x+5x-90=180
9x=270
x=30