Answer:
0.424<0.538
Step-by-step explanation:
Given the confidence interval 0.491 ± 0.057, we are to express in the form
p-E < p + E where E is the error
From the interval E = 0.057, p = 0.591
p±E = (p+E, p-E)
0.491 ± 0.057 = (0.491-0.057, 0.491+0.057)
0.491 ± 0.057 = (0.434, 0.548)
Hence the interval in the form
p-E < p + E is 0.424<0.538
At a sale, dresses were sold for $34 each. This price was 85% of a dress's original
price. How much did a dress originally cost?
Answer:
The original price was $40
Step-by-step explanation:
let x = original price
34= 0.85x
Divide both sides by 0.85
34/0.85 = x
40 = x
Check:
0.15 × 40 = 6
40 – 6 = 34
Predict the number of pancakes that would have 48 chocolate chips
Answer:
You can’t determine that.
Step-by-step explanation:
Which car is accelerating?
Answer:
What care is accelerating? I can't even see the answer choices-_-
Step-by-step explanation:
Why is the answer e and not c?
Step-by-step explanation:
π ∫₀¹ x² dx
This integral is obtained using disk method. Each disk has a volume of V = πr²t, so the radius is r = x.
The region is 0 ≤ y ≤ x, 0 ≤ x ≤ 1.
Revolved around the x-axis, the resulting shape is a cone.
If the shape were a paraboloid, the integral would have been:
π ∫₀¹ (x²)² dx
π ∫₀¹ x⁴ dx
Evaluate and simplify the expression when x=14 and y=1/3
2x/13-9y=?/?
Answer:
Step-by-step explanation:
It’s 14/5 lol
19/2 ÷ 38/7 help me please
Answer:
1.75
Step-by-step explanation:
Answer:
1 3/4
Step-by-step explanation:
dowload fraction caultor and it will tell u the anwers
Properly speaking, we should limit our predictions to the range of the base data.a. true b. false
Answer:
TRUE
Step-by-step explanation:
solve the absolute value equation and check your answer for extraneous solution. I-4xI=32
Answer:
x=8
Step-by-step explanation:
I-4xI=32
4x=32
4x÷4 → 32÷4
=8 →x=8
Landon mixes 6 parts yellow paint with 3 part blue paint to make green she adds 1 more part of yellow to change the shade of green. What is the new ratio of yellow to blue?
A. 3 to 7
B. 4 to 7
C. 6 to 4
D. 7 to 3
Answer:
d
Step-by-step explanation:
Find the value of x for which the lines rand s are parallel.
Answer:
x = 12
Step-by-step explanation:
<1 and the 142-deg angle are vertical, so m<1 = 142 deg
The angle measuring 3x + 2 and <1 are same-side interior angles. If the lines are parallel, then those two angles are supplementary.
3x + 2 + 142 = 180
3x + 144 = 180
3x = 36
x = 12
Find the z score that corresponds to P30 (the 30th percentile).
Answer:
Step-by-step explanation:
From the standard normal distribution tables it is -0.524.
The value of Z score for P 30 is - 0.524
What is Z score ?Z score is the value that relates the data with the mean of the data , A ,0 , Z score means the data point is equal to the mean.
It is given to find
the z score that corresponds to P 30%
From the standard normal distribution table the value corresponding to 30 % is -0.524.
Therefore the value of Z score for P 30 is - 0.524
To know more about Z Score
https://brainly.com/question/15016913
#SPJ2
The femur or thigh bone of an average human is 480 millimeters long. The spinal cord of an average human is 45 centimeters long. What is the total length of a spinal cord and a femur in meters
PLEASE NEED HELP
Answer:
0.93m
Step-by-step explanation:
Convert 480 mm to m
480mm x (1m/1000mm) = 0.48m
Convert 45 cm to m
45cm x (1m/100cm) = 0.45m
Add the two numbers up
0.48m + 0.45 m = 0.93 m
what decimal is equilvalent to 3/8
Answer:
0.375
Step-by-step explanation:
Answer:
0.375.....................
_______ will produce a rational answer when multiplied by 0.9
Answer:
10
Step-by-step explanation:
A rational number is 9.
When you multiply 0.9x10 you get the sum of 9.
9 is a rational number because it is a perfect square and an integer.
I hope this helps you understand :)
evaluate the expression 9 - z when z =4
Answer:
z equals 5
Step-by-step explanation:
if you subtract 9 by 4 you get 5... hope that helps :)
Help!! 20 points ASAP math
Answer: A is located at (3,4) B is located at (2,1)
Step-by-step explanation:
C(x)=15+(15x)(.07) how do i solve this question
Answer:
Step-by-step explanation
4 radians
А
2 cm
B
What is the length of the arc subtended by the angle measuring 4 radians?
A.
4 cm
B.
2 cm
C
16 cm
D
8 cm
Answer:
D. 8 cm
Step-by-step explanation:
Given :
Let the length of the arc be = l
radius of the arc, r = 2 cm
degree of angle subtended at the center by the arc, θ = 4 radian
Now we know that the angle subtended by an arc at the center of the circle whose radius is 2 cm will be,
θ = l/r
Therefore, we can write,
l = θ x r
l = 4 x 2
= 8 cm
So the length of the arc is 8 cm.
Solve 5x - 6y = 13 for y.
Answer:
13 + 5 into 6 Y equal y10 6 into 5 equal why into 13
За – 6а + 2 = 8а + 20 – 5а
Answer:
a = -3
Step-by-step explanation:
3a - 6a + 2 = 8a + 20 - 5a
Combine Like Terms
-3a + 2 = 3a + 20
-2 -2
-------------------------------------
-3a = 3a + 18
-3a -3a
-------------------------------------
-6a = 18
---- ----
-6 -6
a = -3
6. Mary and Steve each travel 845 miles. Mary drove an average of 5 mph faster than Steve and completed the trip in one hour's less time
than Steve. What was each person's average speed?
Answer:
Steve had an average speed of 62.55 mph while Mary had an average speed of 67.55 mph
Step-by-step explanation:
Here, we want to calculate the average speed of each of the two.
From the question, we are told that Mary drove an average of 5 mph faster than steve.
So, let the average speed of Steve be x mph, this means that the average speed of Mary will be (x + 5) mph
Mathematically;
Time = distance/speed
Time taken by Steve = 845/x hours
Time taken by Mary = 845/(x + 5)
But Mary took an hour less to complete her own trip;
This means that;
if we add one hour to the time spent by Mary, then we will have the time spent by Steve
845/(x + 5) + 1 = 845/x
845/(x + 5) = 845/x -1
845/(x + 5) = (845 - x)/x
Cross multiply;
845(x) = (x + 5)(845-x)
845x = x(845-x) + 5(845-x)
845x = 845x-x^2 + 4225 - 5x
x^2 + 5x - 4225 = 0
We can solve this using the quadratic formula;
x = -b ± √(b^2 - 4ac)/2a
where a = 1 , b = 5 , c = -4225
x = -5 ± √(5^2 - 4(1)(-4225)/2(1)
x = -5 ± √(25 + 16,900)/2
x = -5 ± √(16,925)/2
x = (-5 + 130.1)/2 or (-5-130.1)/2
We ignore the negative side as speed cannot be negative
x = (-5 + 130.1)/2 = 62.548 which is approximately 62.55 mph
So steve’s speed is 62.55 mph while Mary’s speed = 62.55 + 5 = 67.55 mph
how do I put on 0.54 as a fraction number 2 how do I write 4.18 as a mixed number number 3 how do I write 0.51 as a fraction
Answer:
0.54 as a fraction is 54/100
4.18 as a mixed number is 4 18/100
0.51 as a fraction is 51/100
it would be really cool if you could mark me as brainliest :)
Step-by-step explanation:
A particular zebra runs 40 miles per hour. Select the animals who run at a faster unit
rate per hour than the zebra. Mark all that apply.
O reindeer: 70 miles in 3 hours
O greyhound 120 miles in 3 hours
O lion 100 miles in 2 hours
O Pig 33 miles in 3 hours
Write the equation of a line that is parallel to 4x-2y=3 and is passing through the point (2,1)
Answer:
y= 2x -3
Step-by-step explanation:
Let's rewrite the given equation into the form of y=mx+c, so that we can find the gradient of the line. In this form, m (coefficient of x) is the gradient.
4x -2y= 3
2y= 4x -3
Divide by 2 throughout:
[tex]y = 2x - 1 \frac{1}{2} [/tex]
Thus the gradient is 2.
Parallel lines have the same gradient thus the line would also have a gradient of 2.
Substitute m=2 into the equation:
y= 2x +c
To find the value of c, substitute a pair of coordinates.
When x=2, y=1,
1= 2(2) +c
1= 4 +c
c= 1 -4
c= -3
Thus, the equation of the line is y= 2x -3.
Which of the following expressions is in simplified form?
the formula for the area of a triangle is a=1/2bh in which b represents the length of the base and h represents the height. If a triangel has an area of 287 mm and the height is 18 mm, what is the b=meausre of the base?
Answer:
287/9
Step-by-step explanation:
so the formula is a=1/2bh
A=287
B=?
H=18
:287=1/2b*18
287=b*9
b=287/9
What is 6.25 divided by 132? Please I need an answer
Answer:
0.0473484848
its what the calculator said
In the given figure, x = 30°. What's the property of parallel lines used to find x? Question 6 options: A) Angles at the same side of the transversal are supplementary. B) Alternate interior angles are congruent. C) Alternate exterior angles are congruent. D) Corresponding angles are congruent.
Answer:
Option (C)
Step-by-step explanation:
Option A.
"Angles at the same side of the transversal are supplementary".
But the angles given are not on the same side of the transversal.
Option B.
"Alternate interior angle are congruent"
These angles are not the interior angles.
Option C.
"Alternate exterior angles are congruent"
Both the angles are alternate and exterior angles.
Therefore, Option (C) is the correct option.
Option D.
"Corresponding angles are congruent"
These angles are not the corresponding angles.
Answer:
C
Step-by-step explanation:
Which statement about the image pictured is true?
please help me with math.
Answer:
300 j/kg
Step-by-step explanation:
In order to find her velocity, you will need to divide energy by mass meaning you will have to do 15000/50 = 300 J/kg
