The completed equation is:
2 + 7 = a - 2
a = 11.
We are given the following equation:
2 + b = a - 2
We need to select the correct number from the drop-down menu to complete the equation.
From the first drop-down menu, we select 7.
2 + 7 = 9
From the second drop-down menu, we select 2.
2 + b = 9 - 2
2 + b = 7
Subtracting 2 from both sides, we get:
b = 5
Therefore, from the third drop-down menu, we select 5.
So, the completed equation is:
2 + 7 = 5 - 2
9 = 3
This is not a true statement, so there must be an error in one of our selections. Upon closer inspection, we can see that the correct number to select from the first drop-down menu is 5, not 7.
2 + 5 = 7
Now, substituting 5 for b in the original equation, we get:
2 + 5 = a - 2
7 + 2 = a
a = 9
Therefore, from the third drop-down menu, we select 9.
So, the completed equation is:
2 + 5 = 9 - 2
7 = 7
This is a true statement, so we have selected the correct numbers to complete the equation.
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−2(−x+4) − 3x+2= −5 what is x?
Answer:
−2(−x+4) − 3x+2= −5 what is x? Well i might be wrong but i think its 2x
Step-by-step explanation:
PEMDAS USE THAT METHOD
Answer: x=-1
Step-by-step explanation:
GOT A QUESTION
would you date a depressing girl if so let me know
Answer:
i wold but can we just be frends
Step-by-step explanation:
i have a discord if you wanna join it?
What is the perimeter of the triangle formed by (-3,1),(-3,5), and (4,1)
Answer:
15
Step-by-step explanation:
Have a nice Day , Hope this helped you I would appreciate it if you could mark my answer brainliest
chocolate milk cow answer
Answer:
what?
Step-by-step explanation:
Answer:
Please tell me what this means.
a menu has 30% vegatarian options. if there is a total of 70 options on the menu, how many options are vegatarian
Answer:
49 options are vegan hope this helps have a nice day please give me brainliest:)))
Step-by-step explanation:
If the supplement of angle x is five times the complement of angle x, how many degrees are in the measure of angle x
Step-by-step explanation:
complement means together they have 90°.
supplement means together they have 180°.
180 - x = 5(90 - x) = 450 - 5x
4x = 270
x = 270/4 = 67.5°
x + 2y = -6
6x +2y =4
Step-by-step explanation:
um, I'm going to use elimination method to solve this simultaneous equation
x+2y=-6.......... equation 1
6x+2y=4........ equation 2
subtract equation 2 from equation 1
-5x = -10
x = -10/-5
x=2
substitute x=2 in equation 1
therefore equation 1 becomes
2+2y=-6
2y=-6-2
2y=-8
y=-8/2
y=-4
7) Given:
Name the part of the circle that segment CD represents.
ANSWER QUICKlY ASAP!!!!
Answer:
\( \sqrt{9 } = 3 \)
Subtract.
41/3−8
Enter your answer as a simplified mixed number by filling in the boxes
Answer:
Hello!!
The answer to the equation \(\frac{41}{3} -8\) is...
Exact form: \(\frac{17}{3}\)
Decimal form: 5.6 repeating
Mixed number form: \(5\frac{2}{3}\)
Hope this helps!!
Solve the equation showing all work.
X²-4x+3=0
x2−4x+3=0
For this equation: a=1, b=-4, c=3
1x2+−4x+3=0
Step 1: Use quadratic formula with a=1, b=-4, c=3.
x=
−b±√b2−4ac
2a
x=
−(−4)±√(−4)2−4(1)(3)
2(1)
x=
4±√4
2
x=3 or x=1
Answer:
x = 1, x = 3
Step-by-step explanation:
x² - 4x + 3 = 0
consider the factors of the constant term (+ 3) which sum to give the coefficient of the x- term (- 4)
the factors are - 1 and - 3 , since
- 1 × - 3 = + 3 and - 1 - 3 = - 4 , then
(x - 1)(x - 3) = 0 ← in factored form
equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
x - 3 = 0 ⇒ x = 3
if possible, give an example or if not possible, explain why
an integer between -5 and -6
Answer:
Not possible
Step-by-step explanation:
The positive difference between the integers is 1, so there are no integers in between since the difference between consecutive integers is 1
Pls help answer 16,15,17
Answer:
1#
3
2#
6
3#
9
4#
12
5#
15
Step-by-step explanation:
Compute the correct quantile for the margin of error of each confidence interval. Assume all of the statistics used have a normal sampling distribution. Use 3 decimal places.
(a) A 98% confidence interval for based on n = 11 observations with known.
(b) A 98% confidence interval for based on n = 11 observations with unknown.
(c) A 90% confidence interval for a population proportion, p, based on n = 11 observations
(d) A 92% confidence interval based on n = 14 observations for the slope parameter
Assume all of the statistics used have a normal sampling distribution. Use 3 decimal places. Below are the steps of calculation:(a) For a 98% confidence interval for a population mean based on n = 11 observations with known: We know that margin of error formula = Zα/2 σ/√n, Where Zα/2 is the quantile of the normal distribution at α/2, σ is the population standard deviation and n is the sample size. In this case, α = 0.02, n = 11 and Zα/2 = 2.326. The sample size is small, and therefore we assume a normal distribution. Using the formula above, we obtain: margin of error = Zα/2 σ/√n = 2.326 σ/√11(b) For a 98% confidence interval for a population mean based on n = 11 observations with unknown. We know that margin of error formula = tα/2 s/√n. Where tα/2 is the quantile of the t-distribution at α/2, s is the sample standard deviation and n is the sample size. In this case, α = 0.02, n = 11 and tα/2 = 2.718. The sample size is small, and therefore we assume a normal distribution.
Using the formula above, we obtain: margin of error = tα/2 s/√n = 2.718 s/√11(c) For a 90% confidence interval for a population proportion, p, based on n = 11 observations. We know that margin of error formula = Zα/2 √((p(1-p))/n)Where Zα/2 is the quantile of the normal distribution at α/2, n is the sample size, and p is the sample proportion. In this case, α = 0.1, n = 11 and Zα/2 = 1.645.Using the formula above, we obtain: margin of error = Zα/2 √((p(1-p))/n) = 1.645 √((p(1-p))/11)(d) For a 92% confidence interval based on n = 14 observations for the slope parameter. We know that margin of error formula = tα/2 * SE. Where tα/2 is the quantile of the t-distribution at α/2, and SE is the standard error of the estimate. In this case, α = 0.08, n = 14 and tα/2 = 1.771.
Using the formula above, we obtain: margin of error = tα/2 * SE = 1.771 * SE. Therefore, the correct quantile for the margin of error of each confidence interval is as follows:(a) 2.670(b) 2.570(c) 0.512(d) 1.564.
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The goalie made 30 saves in 6 games. If the pattern continued, how many saves would the goalie make in 12 games?
Answer:
60 saves
Step-by-step explanation:
You can make a ratio for this:
30:6 = 5:1
For each game, the goalie makes 5 saves
?:12
Multiply 12 by 5 to get your answer
60:12
Answer: 60
Step-by-step explanation:
because 30*2=60 and 6*2=12
HELP PLEASE!! I don't get it!!!!!!
Answer:
294.5 m²
Step-by-step explanation:
portion of circle is 360 - 130 = 230
πr²*x/360 = π(11.1)²*230/360 = 247.3
then add the non-right triangle area, 1/2ab sinC
1/2(11.1)(11.1) sin 130 = 47.2
247.3 + 47.2 = 294.5 m²
The radius of the circle on a basketball court is 6 feet. What are the approximate circumstance and area of the circle?
Answer:
C= 38 in Approx
A=113 in^2 Aprprox
Step-by-step explanation:
Given data
radius= 6 ft
Circumference, C=2πr
substitute
C=2*3.142*6
C=37.704 in
Area A= πr^2
substitute
A=3.142*6^2
A=3.142*36
A=113.112 in^2
Mrs. Babin put a border around a 5-foot by 6-foot rectangular bulletin board. How
many feet of border did Mrs. Babin use?
Answer:
30 ft squared of border
Step-by-step explanation:
You need to find the area in order to find out how many feet she used. Length x Width = Area
5x6=30 ft squared
Answer:
30 ft
Step-by-step explanation:
su
How do I give brainliest I forgot whoever lets me know how I will give them it
what is the equivalent to
Answer:
2^(5/2)
Step-by-step explanation:
2^0 = 1, so the given expression immediately becomes
2^3
------------ = 2^(5/2) (we subtract 1/2 from 3, obtaining 5/2)
2^(1/2)
Let F(u,v) = (u^2−v^2,2uv) be mapping from R^2 to R^2.
(a) Sketch the horizontal line v = 1 and its image under F. What is the curve?
(b)Sketch the vertical line u = 1 and its image under F. What is the curve?
(a) To sketch the horizontal line v = 1 and its image under F, we need to substitute v = 1 into the equation F(u,v) = (u^2−v^2,2uv). Substituting v = 1, we have F(u,1) = (u^2−1,2u).
So, the image of the horizontal line v = 1 under F is the curve defined by the equation y = 2x. To sketch the vertical line u = 1 and its image under F, we need to substitute u = 1 into the equation F(u,v) = (u^2−v^2,2uv).
Substituting u = 1, we have F(1,v) = (1−v^2,2v).
So, the image of the vertical line u = 1 under F is the curve defined by the equation x = 1−y^2. I hope this helps! Let me know if you have any further questions.
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The mapping \(F(u,v) = (u^2−v^2,2uv)\) takes points from the Cartesian coordinate system in R^2 to points in R^2.
(a) To sketch the horizontal line v = 1 and its image under F, we first plot the line v = 1 in the Cartesian coordinate system. This is a horizontal line that runs parallel to the x-axis and intersects the y-axis at y = 1.
Next, we substitute v = 1 into the mapping \(F(u,v) = (u^2−v^2,2uv)\) to find the image of the line.
\(F(u,1) = (u^2−1^2,2u) = (u^2−1,2u)\)
The image of the line v = 1 under F is given by the curve \((u^2−1,2u)\). To sketch this curve, we can plot points for various values of u. For example, when u = -2, we have \(F(-2,1) = ((-2)^2−1,2(-2)) = (3,-4\)). Similarly, when u = -1, we have \(F(-1,1) = ((-1)^2−1,2(-1)) = (0,-2)\). Continuing this process for different values of u, we can plot multiple points and connect them to form the curve.
(b) To sketch the vertical line u = 1 and its image under F, we first plot the line u = 1 in the Cartesian coordinate system. This is a vertical line that runs parallel to the y-axis and intersects the x-axis at x = 1.
Next, we substitute u = 1 into the mapping \(F(u,v) = (u^2−v^2,2uv)\) to find the image of the line.
\((1,v) = (1^2−v^2,2(1)v) = (1−v^2,2v)\)
The image of the line u = 1 under F is given by the curve \((1−v^2,2v)\). To sketch this curve, we can plot points for various values of v. For example, when v = -2, we have \(F(1,-2) = (1−(-2)^2,2(-2)) = (-3,-4)\). Similarly, when v = -1, we have \(F(1,-1) = (1−(-1)^2,2(-1)) = (0,-2)\). Continuing this process for different values of v, we can plot multiple points and connect them to form the curve.
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When do u evaluate exponents in the order of operations??
Pls help I got 9 minutes to do this
Answer:
2nd
Step-by-step explanation:
Perenthasis
Exponets
Multiply
Divide
Add
Subtract
Choose the equation that shows the relationship of 80%, x, and 100.
Answer:
chipset buy showroom de en inglés
Hi, I need help for part c, please!
Answer:
35 mph
Step-by-step explanation:
The answer should be the average speed it takes to drive, so you would find the average of the speed to go to A with the speed to go to B. You already have the two answers for part A and B, so you would add them, then divide them by 2. It would look like this:
\(\frac{30+40}{2} =\frac{70}{2} =35\)
So it would be 35 mph
Determine if the two triangles are congruent. If they are, state how you know.
1)
2)
A hybrid car averages 630 miles on a 122-gallon tank of gas. Ramona has enough money to put 7.4 gallons of gas in her hybrid. She is planning on driving her brother home from college for the weekend.
If their home is 320 miles away, should she be able to make it home before she runs out of gas?
The hybrid car will travel ___ miles on 7.4 gallons of gas, therefore, she (will,will not) be able to make it home.
(Round to the nearest whole number as needed.)
The hybrid car will travel 38 miles on 7.4 gallons of gas, therefore, she will not be able to make it home.
How to solve the problem?The problem is solved applying the proportions in it's context.
A hybrid car averages 630 miles on a 122-gallon tank of gas, hence the number of miles per gallon is given as follows:
630/122 = 5.16 miles per gallon
Ramona has enough money to put 7.4 gallons of gas in her hybrid, hence the distance that she can travel is obtained as follows:
7.4 x 5.16 = 38 miles.
Hence she will not be able to make it home.
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Give the names of two other statistics that have the same value as the 50 th percentile. Choose the correct answer below. A. Second quartile; median B. Second quartile; mean C. Third quartile; mode D. First quartile; midrange
The 50th percentile is a commonly used statistic in data analysis. It represents the value below which 50% of the data falls.
In other words, it divides the data into two equal parts. There are two other statistics that have the same value as the 50th percentile, namely the second quartile and the median. The second quartile is the middle value of the data when it is arranged in ascending or descending order.
It is also known as the 50th percentile or the median. The first quartile is the value below which 25% of the data falls, and the third quartile is the value below which 75% of the data falls.
The mean is another commonly used statistic in data analysis. It is the sum of all the values in the data divided by the total number of values. Unlike the median, the mean is affected by extreme values or outliers in the data. This means that if there are outliers in the data, the mean may not be a good measure of central tendency.
The mode is the value that occurs most frequently in the data. It is another measure of central tendency that can be used in addition to the median and mean.
In summary, the 50th percentile is equivalent to the second quartile and the median. These statistics are all measures of central tendency that help to describe the distribution of data. The choice that best answers the question is option A: Second quartile; median.
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x + 2y = 10
x + 3y = 15
Divide.
-4 4/5 divided by 4
Answer:
-1 1/5
Step-by-step explanation:
I NEED HELP ON THIS ASAP! PLEASE, IT'S DUE TONIGHT
The total length is 102.986 units
The total area of the floor sheet is 1020 units.
How to find total area?The method for finding the total area will depend on the shape(s) involved. Here are some general formulas for common shapes:
Square: To find the area of a square, multiply the length of one side by itself. For example, if the side of a square is 4 units, the area would be 4 x 4 = 16 square units.
Rectangle: To find the area of a rectangle, multiply the length by the width. For example, if a rectangle has a length of 6 units and a width of 4 units, the area would be 6 x 4 = 24 square units.
Triangle: To find the area of a triangle, multiply the base by the height and divide by 2. For example, if a triangle has a base of 5 units and a height of 8 units, the area would be (5 x 8) / 2 = 20 square units.
Circle: To find the area of a circle, multiply pi (approximately 3.14) by the radius squared. For example, if a circle has a radius of 3 units, the area would be 3.14 x 3^2 = 28.26 square units.
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