Answer:
enlarged by a factor of 2
Step-by-step explanation:
you're welcome
Which graph of ordered payers show a proportional relationship?
A student makes a number of measurements of electrical current in the circuit. The average of the measurements is 12.33 mA. The standard deviation of the sample is 0.14 mA. How should this measurement be written to the correct number of significant figures with error range to show a 95% confidence
Answer:
The way to represent this it is
[tex] 12.33 - \frac{0.27}{\sqrt{n} } < \mu < 12.33 + \frac{0.27}{\sqrt{n} } [/tex]
Step-by-step explanation:
From the question we are told that
The sample mean is
The standard deviation is
Given that the confidence level is 95% then the level of significance is mathematically represented as
[tex]\alpha = (100-95)[/tex]
[tex]\alpha = 0.05[/tex]
The critical value for [tex]\frac{\alpha }{2}[/tex] is obtained from the normal distribution table that value is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Now the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }[/tex]
[tex]E = \frac{0.27}{\sqrt{n} }[/tex]
Now the error range to show a 95% confidence is mathematically represented as
[tex]\= x - E < \mu < \= x + E[/tex]
[tex] 12.33 - \frac{0.27}{\sqrt{n} } < \mu < 12.33 + \frac{0.27}{\sqrt{n} } [/tex]
Here notice that the significant figure is keep to three to match the significant figure of the given values
Which of these could be the volume of a rectangular box?
Answer:Understand the volume of a rectangle equals it's length x width x height. If your box is a rectangular prism or a cube, the only information you need is the box's length, width, and height. You can then multiply them together to get volume. This formula is often abbreviated as V = l x w x h.
Step-by-step explanation:
Mary determined that her father's age is four less than three times her age. If represents Mary's age,
which expression represents her father's age? (A.SSE.1.b)
A) 3x-4
B) (x-4)
C) 4x-3
D) 4-3x
Answer:
B
Step-by-step explanation:
3x-4 represent father's age
Two times Noura's age plus 5 years equals Ali's age. Ali is 19 years old. What formula could be used to calculate Noura's age
Answer:
Noura is seven years old
Step-by-step explanation:
to get Noura's age first you need to subtract 5 years from Ali's age which will get you to 14 years of age now you just need to divide 14 by two to get Noura's age which is seven
Segment AB has endpoints A(-2, 3) and B(6, 11). Find the coordinates of the midpoint of AB.
Midpoint =
Answer:
Midpoint = (2,7)
Step-by-step explanation:
2. The sum of three consecutive odd integers is 105.
What are the three numbers.
Answer:
33, 35, 37
Step-by-step explanation:
They come one after the other making them consecutive, they are all odd, and equal 105 when added.
A toy car can go 3 mph. How long would it take to go 10 miles?
Answer:
2 2/3 hours
Step-by-step explanation:
if the car can go 3 miles per hour that means it can go 10 miles in 2 2/3
It takes to go 10 miles 2 2/3 hours.
We have given that,
A toy car can go 3 mph.
We have to determine, How long would it take to go 10 miles.
What are the miles?
A mile is a unit of distance equal to 1760 yards or approximately 1.6 kilometers. Meaning, pronunciation, translations, and examples.
If the car can go 3 miles per hour that means it can go 10 miles in 2 2/3.
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Which is the better buy? $1.29 for a 16 oz drink, or $1.79 for a 24 oz drink?
A.
$1.29 for 16 oz
B.
$1.79 for 24 oz
C.
Tie! The unit prices are the same.
Answer:
A.
$1.29 for 16 oz
Step-by-step explanation:
If a desk is $186with a discount of 50% what is the original retail price for the desk
Answer: $372
Step-by-step explanation:
Let the original retail price be 'x'
Therefore, using the give information, we can form the following equation:
50/100x = 186
Now, solve for x
50/100x = 186
1/2x = 186
x = 186 * 2
x = 372
The original retail price is $372.
Check:
50/100(372) = 186
1/2(372) = 186
186 = 186
True or False: If your expression contains more than one set of parentheses, you should evaluate all of them before doing anything else. A True B False
Answer:
TRUE
Step-by-step explanation: It's the first step in the order of operations.
The winning speed in the 2011 Indianapolis 500 was 170.265 miles per hour. What
is that speed rounded to the nearest tenth of a mile per hour?
Answer:
The answer to this problem is 170.300
Please solve screen shot below
Answer:
G=(T²+N²)/4
Step-by-step explanation:
(√4G-N²)²=T²
4G-N²=T²
4G=T²+N²
G=(T²+N²)/4
if anything is unclear, ask freely.
A science geek brews tea at 195195 °F, and observes that the temperature T(t)T(t) of the tea after tt minutes is changing at the rate of T'(t)=−4.5e−0.07tT′(t)=−4.5e−0.07t °F/min. What is the average temperature of the tea during the first 55 minutes after being brewed? Round your answer to the nearest hundredth of a degree.
Answer:
Step-by-step explanation:
See enclosed file for answer.
5/8+3/4 | -2/3 - 5/6
Answer:
- 11/12
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors. It was possible so we get
-11/12
What percent of 50 is 150
Answer:
300
Step-by-step explanation:
Whats 7 divided by 9?
Answer:
7/9 or 0.77
Step-by-step explanation:
since you can't simplify this anymore you can just write 7/9 or 0.77
Hope this helps :)
The calculated division of the numbers 7 divided by 9 is 7/9
How to calculate the division of the numbersFrom the question, we have the following parameters that can be used in our computation:
7 divided by 9
When represented as an equation, we have
7 divided by 9 = 7/9
Divide 48 by 7
So, we have the following result
7 divided by 9 = 7/9
Using the above as a guide, we have the following:
the result is 7/9
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Solve the following linear equation for x. 12(2x+6)=−3(x−1)−2+2x x=
Answer:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
6-2*x-(3)=0
Step by step solution :
STEP
1
:
Solving a Single Variable Equation
1.1 Solve : -2x+3 = 0
Subtract 3 from both sides of the equation :
-2x = -3
Multiply both sides of the equation by (-1) : 2x = 3
Divide both sides of the equation by 2:
x = 3/2 = 1.500
x = 3/2 = 1.500
Step-by-step explanation:
hope this helps
The sphere shown below is placed in a full overflow cup and sinks to the bottom. How much water is displaced by the sphere?Lector inmersivo
(1 Punto)
A. 51.0 mL
Option 2
C. 88.6 mL
D. 407.7 mL
B. 66.5 mL
Answer:
A. 51.0 mLStep-by-step explanation:
Given
The sphere with the diameter of 4.6It displaces the amount of water equal to its volume
Volume of the sphere:
V = 4/3πr³V = 4/3π(d/2)³ = 1/6πd³V = 1/6*3.14*4.6³ = 50.939 ≈ 51.0 cm³ = 51.0 mlCorrect option is A. 51.0 mL
Answer:
A
Step-by-step explanation:
We are given a diameter of 4.6
4.6 / 2 = 2.3 (radius)
Volume of a sphere [ V = 4/3πr² ]
V = 4/3π(2.3)²
V = 4/3π(5.29)
V = 4/3(38.20438)
V ≈ 51
Best of Luck!
Use the expressions below to complete the following sentences.
Apples: $(2x) per pound
Grapes: $(6x-5) per pound
Oranges: $(x+2) per pound
A shopper purchases one pound each of apples, grapes, and oranges and spends $10.50.
The shopper spent
dollars on apples.
The shopper spent
dollars on grapes.
The shopper spent
dollars on oranges.
Find the distance between the points (9,-6) and (4,-7)
Answer:
The answer is option DStep-by-step explanation:
The distance between two points can be found by using the formula
[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\ [/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(9,-6) and (4,-7)
The distance between them is
[tex]d = \sqrt{ ({9 + 4})^{2} + ( { - 6 - 7})^{2} } \\ = \sqrt{ {13}^{2} + ({ - 13})^{2} } \\ = \sqrt{169 + 169} \\ = \sqrt{338} \\ = 13 \sqrt{2} [/tex]
Hope this helps you
The length of a table is given in inches, centimeters, and millimeters. Which unit of measure is the most accurate?
Carrie is making a cake recipe that calls for 2 3/4 cups of sugar. She needs 1 2/3 cups of sugar for the frosting. What is the total amount of sugar used?
Answer:
4 5/12
Step-by-step explanation:
8. In the function f(4)=16, 16 is
A. function
B. input
C. output
D. rule
Calculate the quotient below and give your answer in scientific notation. 1.72 x 10^0 / 4.0 x 10^-3
PLZ ANSWER PIC INCLUDED
Answer:
28 feet
Step-by-step explanation:
We know that the perimeter of a square is [tex]2l + 2w[/tex], where l is the length and w is the width.
We also know that the perimeter of a triangle is all of its sides added up.
Since the perimeters will be equal to each other, we can make both of these statements an equation that are equal to each other.
Basically:
[tex](3x - 3) + (3x - 3) + (x - 3) + (x - 3) = (2x - 1) + (2x - 1) + (2x)[/tex]
We can combine like terms to get a less scary equation.
[tex]8x - 12 = 6x - 2[/tex]
Our goal is to now isolate x so we can find it's value.
Add 2 to both sides:
[tex]8x - 10 = 6x[/tex]
Subtract 6x from both sides:
[tex]2x - 10 = 0[/tex]
Add 10 to both sides:
[tex]2x = 10[/tex]
Divide both sides by 2:
[tex]x = 5[/tex]
Now we know the value of x, however, our work isn't done. They want to know the perimeter, so we need to substitute x in as 5.
Let's do it on the triangle.
[tex]6x-2[/tex] (remember, this is our simplified version of the triangle)
[tex]6(5) - 2\\\\30 - 2\\\\28[/tex]
Hope this helped!
Is 10 a whole number
Answer:
Yes
Step-by-step explanation:
A whole number is any number without a decimal. It can also be called an integer.
2. Give recursive definitions for the following sets. a. The set of all strings over {a, b} containing at least one "a". b. The set of odd-length binary strings that end with 00.
Answer and explanation:
Recursive is related to repeat the definition, rule, and procedure.
a) The set of all strings over {a,b} containing at least one a.
Let x is a string containing at least one a: x=a and y= b
Sets of union of XY and yx will be (XY) (yx) = (a,b) (b, a)
b) The set of odd length binary strings that end with 00
There is a regular expression compared with two 00, which is surrounded by 0+1 with at least two 0s.
What is the equation the line that is perpendicular the given line and has an x-intercept of 10 8 (- 4, 4) y = 3/4 * x + 8 y = - 3/4 * x + 6 (4, - 2) 6: y = 4/3 * x - 8 y = 4/3 * x - 6
Teah was selling candy bars for a fundraiser. She spent $25 on a box of candy bars and sold each candy bar for $2.50. Her profit was $75. Teah wrote the equation 2.5c−25=75 for this situation, and she found c=40.
Which statement is true about the solution c=40?
The solution c=40 is the selling cost of each candy bar, in dollars.
The solution c=40 is the selling cost of a box of candy bars, in dollars.
The solution c=40 is the number of candy bars Teah sold.
The solution c=40 is the amount in dollars that Teah spent on a box.
The solution c=40 is the profit in dollars Teah made from each candy bar.
Answer: The solution would be C
Step-by-step explanation:
If we multiply 40 candy bars by $2.50 we would get the answer of $100 because that is how much she made from selling candy bars. . Then we would have to subtract that answer by $25 because that is how much the box cost. $100 minus $25 is equal to $75. So the answer would be option C
