Answer:
\(x = 9\)
Step-by-step explanation:
The correct equation is:
\(2x = 1x + 9\)
Required
Solve for x
\(2x = 1x + 9\)
Collect Like Terms
\(2x - 1x = 9\)
\(x = 9\)
Hence, the solution to the equation is 9
TIME REMAINING
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The solution to the system of equation below is (−2, −1).
2x − 3y = −1
11x − 9y = −13
When the first equation is multiplied by −3, the sum of the two equations is equivalent to 5x = −10.
Answer:
XD is an emoticon commonly used to symbolize dying from laughter. It represents 2 closed eyes with the X and mouth with the D.
The solution of the equations is (-2, -1)
System of equation:2x - 3y = -1
11x - 9y = -13
Using elimination method let multiply the first equation by -3.
Therefore,
-6x + 9y = 3
11x - 9y = -13
5x = -10
x = -10 / 5
x = -2
let's find y as follows;
2(-2) - 3y = -1
-4 - 3y = -1
-3y = -1 + 4
-3y = 3
y = 3 / -3
y = -1
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Write the equation of a line PERPENDICULAR
to 3x + y = 1 that passes through the point (3,
-1).
Answer:
im pretty sure its y=1/3x
Step-by-step explanation:
rearrange for y to be subject
its perpendicular so then the gradient will be the negative reciprocal (-1 / -3= 1/3) so thats your new gradient
then when you substitute the (3,-1) into that equation get -1=1 + c so then c is 0 and your whole equation is y=1/3x
Find the equation in slope-intercept form of the line with slope 2 which passes through the point (2, 8)
The equation of the line in slope-intercept form is y = 2x + 4
What is slope how to solve slope equation ?
Slope is a measure of the steepness of a line. It is defined as the ratio of the change in y-coordinates to the change in x-coordinates between any two points on the line. Slope is denoted by the letter m.
The slope formula is:
m = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are any two points on the line.
To solve for the slope of a line given two points, you can simply plug in the coordinates into the slope formula and simplify.
The slope-intercept form of a line is y = mx + b, where m is the slope and b is the y-intercept.
We are given that the slope is 2, so we have:
y = 2x + b
To find the value of b, we can use the fact that the line passes through the point (2, 8). Substituting these values into the equation, we get:
8 = 2(2) + b
Simplifying the right-hand side, we get:
8 = 4 + b
Subtracting 4 from both sides, we get:
b = 4
So the equation of the line in slope-intercept form is:
y = 2x + 4
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wHAT IS THE REFERENCE ANGLE -935°
M is the midpoint of line AB. Endpoint A is (4, 2). Midpoint M is (6, 0). Endpoint B = ?
The B points are ( 8, -2 ) of Endpoint B when M is the midpoint of line AB.
What is midpoint of a segment?
The midway of a line segment in geometry is where it meets the other end. The centroid of the segment and the endpoints, it is equally spaced from both endpoints. It cuts the section in half.M is the midpoint of line AB.
Endpoint A is (4, 2).
Midpoint M is (6, 0)
Let mid points are ( x,y) and A points are ( x₂ , y₂ ) and B points are ( x₁ , y₁)
x = x₁ + x₂/2 , y = y₁ + y₂/2
6 = x₁ + 4/2 , 0 = y₁ + 2/2
12 = x₁ + 4 , 0 = y₁ + 2
x₁ = 12 - 4 , y₁ = -2
x₁ = 8 , y₁ = -2
So, the B points are ( 8, -2 )
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the 4 winning numbers in a swimming club lottery were called out as follows the 1st number is the square root of 576 the 2nd number is a multiple of 8 between 30 and 39 the 3rd number is the cube of 3 the 4th number is the largest prime number less than 40 what we’re the 4 winning numbers?
The four winning numbers are 24, 32, 27 and 37 respectively
How to determine the numbersIt is important to note the following;
A prime number is a number than is divisible by 1 and itselfA square root is defined as the factor of a number which when multiplied by itself would give back the original numberThe cube of a number is that number to the exponent or power of 3A multiple is defined as the product of an integer, element or quantityFrom the information given;
a. First number = square root of 576
This is represented as
First number = √576
First number = 24
b. Second number = multiple of 8 between 30 and 39
Second number = 32
c. Third number = cube of 3
This is represented as;
Third number = 3³
Third number = 37
d. largest prime number less than 40
Fourth number = 37
Hence, the numbers are 24, 32, 27 and 37
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3- ¿Cuál es la probabilidad de que al escoger un número positivo de dos cifras, este sea
primo y termine en 3?
O a) 1/15
b) 2/90
c) 6/91
d) 9/90
Answer:
6 primos de dos cifras(casos favorables) / 90 numeros de dos cifras(casos posibles) = 1/15
Step-by-step explanation:
Usando el concepto de probabilidad, se encuentra que hay una probabilidad de \(\frac{1}{15}\), opcion A, de que al escoger un número positivo de dos cifras, este sea primo y termine en 3.
------------------------------
Una probabilidad es dada por la división de el número de resultados deseados por el número de resultados totales. Hay 90 números positivos de dos cifras.13, 23, 43, 53, 73, 83 son primos y terminan en 3, o sea, el número de resultados deseados es 6.Entonces:
\(p = \frac{6}{90} = \frac{1}{15}\)
Probabilidad de \(\frac{1}{15}\), opcion A, de que al escoger un número positivo de dos cifras, este sea primo y termine en 3.
Un problema similar es dado en https://brainly.com/question/24583317
complete the table using f(x) 2(x + 2) + 4x
Answer:
first you find X then you do the rest
Step-by-step explanation:
What Did the Baby Porcupine Say
When It Backed Into a Cactus?
each
Answer:
As baby porcupine is backed into cactus, so the spines of cactus will feel like spines of mother porcupine. So the baby porcupine will give call to its mother.
Step-by-step explanation
He said hi Ma.
In 1995, there were 20 wolves in Yellowstone. In 2005 there were 120. Find the percent of change.
Answer:
500% increase
Step-by-step explanation:
Will mark brainliest.
The solution is, the value of the variables are x = 40 and, y = 160.
Notice that "x" and "3x+20" are supplementary angles so their sum is 180°
(x) + (3x + 20) = 180
4x + 20 = 180
4x = 160
x = 40
To solve for "y", you have 2 options: either notice that "x" and "y-20" are supplementary angles so their sum is 180° or notice that "3x + 20" and "y - 20" are vertical angles so are equal to each other. I am going to solve using the first option because it is less work.
(x) + (y - 20) = 180°
40 + y - 20 = 180
y + 20 = 180
y = 160
Answer: x=40, y=160
The solution is, the value of the variables are x = 40 and, y = 160.
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complete question:
Find the value of each variable
I need the answer pls, any of y'all's answers would help!
Answer:
1
Step-by-step explanation:
The differences in the values on each spot on the line is 2, because -5 is in between -7 and -3. Going to the right means that the values are increasing. We go from -7, to -5, to -3, to -1, and finally, to 1.
Brainliest, please :)
(3×10 – 4)(2×1010) whats the scientific notion
The result of the multiplication in scientific notation is given by:
\(6 \times 10^{6}\)
What is scientific notation?A number in scientific notation is given by:
\(a \times 10^b\)
With the base being \(a \in [1, 10)\).
When we multiply two numbers in scientific notation, we multiply the bases and add the exponents.
For this problem, the numbers are given by:
\(3 \times 10^{-4}, 2 \times 10^{10}\)
The result of the multiplication is given by:
\(3 \times 10^{-4} \times 2 \times 10^{10} = 6 \times 10^{-4 + 10} = 6 \times 10^{6}\)
The result of the multiplication in scientific notation is given by:
\(6 \times 10^{6}\)
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6th grade math I mark as brainliest
Answer:
B.) For every 8 bows, there are 4 headbands.
Step-by-step explanation:
Answer:
try A B and D
Step-by-step explanation:
What is the value of n?
Enter your answer in the box.
n= ____m
The value of n, considering the intersecting chords in the circle, is given as follows:
n = 6m.
What is the chord of a circle?A chord of a circle is a straight line segment that connects two points on the circle. Specifically, it is a line segment whose endpoints are on the circle. A chord is often denoted by drawing a line segment between the two endpoints, with the segment passing through the interior of the circle.
When two chords intersect each other, then the products of the measures of the segments of the chords are equal.
Considering the two intersecting chords for the circle in this problem, the value of n is obtained as follows:
5n = 15 x 2
5n = 30
n = 30/6
n = 6m.
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(ANSWERED- EASY POINTS!!) The polynomial is a difference of perfect squares. Use the formula a2 – b2 = (a + b)(a – b) to factor completely.
81x2 – 49
The value of a is ____.
The value of b is ____.
The product of the prime factors is ____.
The polynomial is a difference of perfect squares. Use the formula a2 – b2 = (a + b)(a – b) to factor completely.
81x2 – 49
The value of a is ✔ 9x.
The value of b is ✔ 7.
The product of the prime factors is
✔ (9x – 7)(9x + 7).
Answer:
This equation is a perfect square binomial so you would just square root the front and then square root the back to get (9x+7)(9x-7)
Step-by-step explanation:
The front is 81x^2 and the back is 49 which are both perfect squares.
The given polynomial, 81x^2 - 49, is a difference of perfect squares. To factor it completely, we can use the formula a^2 - b^2 = (a + b)(a - b).
In this case, a^2 = 81x^2 and b^2 = 49. Taking the square root of both sides, we have a = 9x and b = 7.
Therefore, the value of a is 9x and the value of b is 7.
To factor the polynomial completely, we use the formula (a + b)(a - b). Substituting the values of a and b, we have:
(9x + 7)(9x - 7)
The product of the prime factors is (9x - 7)(9x + 7).
I hope this helps!
Calc II Question
Sketch the region enclosed by the given curves and find its area.
Y = lxl , y = x^2 - 2
Answer:
\(\displaystyle A=\frac{20}{3}\)
Step-by-step explanation:
\(\displaystyle A=\int^2_{-2}(|x|-(x^2-2))\,dx\\\\A=2\int^2_0(x-(x^2-2))\,dx\\\\A=2\int^2_0(-x^2+x+2)\,dx\\\\A=2\biggr(-\frac{x^3}{3}+\frac{x^2}{2}+2x\biggr)\biggr|^2_0\\\\A=2\biggr(-\frac{2^3}{3}+\frac{2^2}{2}+2(2)\biggr)\\\\A=2\biggr(-\frac{8}{3}+2+4\biggr)\\\\A=2\biggr(-\frac{8}{3}+6\biggr)\\\\A=2\biggr(\frac{10}{3}\biggr)\\\\A=\frac{20}{3}\)
Bounds depend on whether you use -x or +x instead of |x|, but you double regardless. See the attached graph for a visual.
which expression is equivalent to the given expression?
ln(2e/x)
ln2+ ln e -ln x
ln 2 + 1 - ln x
OPTION D is the correct answer
24x-12 equivalent expressions
Answer:
24x-18+6
Step-by-step explanation:
24x-18+6, 6+-18=-12, 24x-12=24x-2
I need help pls pls pls
Answer:
The lateral surface area of a cylinder is the area of the curved surface that goes around the cylinder. It can be calculated using the formula:
Lateral Surface Area = 2πrL
where π is pi, r is the radius, and L is the length of the cylinder.
The total surface area of a cylinder is the sum of the lateral surface area and the area of the two circular end caps. It can be calculated using the formula:
Total Surface Area = 2πrL + 2πr^2
Given that r = 20mm and L = 75mm, we can use these values to find the lateral and total surface area of the cylinder:
Lateral Surface Area = 2πrL = 2 * 3.14 * 20mm * 75mm = 4712 mm^2
Total Surface Area = 2πrL + 2πr^2 = 2 * 3.14 * 20mm * 75mm + 2 * 3.14 * 20mm^2 = 4712 mm^2 + 1256 mm^2 = 5968 mm^2
You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as a fraction or percent rounded to the nearest hundredth.
The probability of not spinning a red, flipping tails, then not spinning an even number is ?
Answer:
2 / 9
Step-by-step explanation:
From the spinner :
Number of reds = 1
Total number of colors = 3
P(not red) = Probability of not spinning red, = 1 - p(red) = 1 - 1/3 = 2/3
P(flipping tail) = a coin flip, P(tail) = 1/2
P(not even) = probability of not obtaining an even number) = 1 - p(obtaining an even number)
(1, 2, 3) ; not even = (1, 3)
P(not even) = 2 /3
Compound probability = 2/3 * 1/2 * 2/3 = 4 / 18 = 2 /9
please help will give brainlist out
Answer:
acef
Step-by-step explanation:
-4+9=5
-(-8)=8
-3×(-4)=12
abs value of any number is positive
Set up and solve an equation for the value of x. Use the value of x and a relevant angle relationship in the diagram.
(please also show an step by step process of getting EAF!)
Answer:
x = 27 , ∠ EAF = 27°
Step-by-step explanation:
∠ GAF = 90° , then
∠ GAC + ∠ CAF = ∠ GAF , that is
x + 63 = 90 ( subtract 63 from both sides )
x = 27
∠ DAE = 90°
since CD is a straight angle of 180° , then
∠ CAE = 90° , so
∠ CAF + ∠ EAF = ∠ CAE , that is
63° + ∠ EAF = 90° ( subtract 63° from both sides )
∠ EAF = 27°
The graph compares the weights in pounds of 100 dogs and cats that are brought in
to a veterinarian's office. Using the medians, how much more does a typical dog weigh than a typical cat?
Answer:20
Step-by-step explanation:this is wrong
Answer:
40
Step-by-step explanation:
subtract median of dogs and median of cats
help me plz ._. i beg u
Baxter has a recipe for salad dressing that calls for 2/3cup olive oil, 1/4 cup vinegar, and 1 1/3 cup pureed avocado.
how much pureed avocado does baxter need?
Answer:
Step-by-step explanation:
1 - 1/3 cup of pureed avocados
although it matters how much you are making.
if you are making 6 cups then you only need 2/3 cups of pureed avacados
Answer:
2/3
EXPLANATION
Based on the given conditions, formulate:
Convert the expression into a fraction:
Expand the fraction to get the least common denominator:
Calculate the product or quotient:
Write the numerators over common denominator:
Calculate the sum or difference:
Apply Multiplicative Distribution Law:
Write as a single fraction:
Calculate the product or quotient:
Calculate the product or quotient:
Cross out the common factor:
Reorder and combine like terms:
Write the numerators over common denominator:
Calculate the sum or difference:
Cross out the common factor:
Calculate the sum or difference:
Cross out the common factor:
get the result:
Answer: 2/3
What is the are in square feet of the trapezoid
Answer:
A = 94.6ft^2
Step-by-step explanation:
In order to be able to find the area of a trapezoid or any quadrilateral shape we need to use the equation:
A= a+b/2h
As we know we have the number base 7.7ft, base 14.3ft, and height of 8.6ft so then we take these numbers :
7.7 + 14.3/2 x 8.6 = 94.6
The data show the number of pieces of mail delivered to a single home address each day for three weeks.4, 0, 2, 6, 1, 0, 3, 4, 0, 2, 4, 1, 5, 2, 3, 1, 1, 2Which statement is true about a graph representing the data? Check all that apply.The number line of a dot plot would start at 1.A dot plot would show 7 points for numbers greater than 2.The intervals on a histogram should be 0 to 2, 3 to 4, and 5 to 6.A histogram would have a maximum of 7 bars.A histogram should not show a bar that includes 0 pieces of mail.
A dot plot would show 7 points for numbers greater than 2 and a histogram would have a maximum of 7 bars. Hence, Both statements b and d are true about a graph representing the data.
Statement b: A dot plot would show 7 points for numbers greater than 2. This is true because there are 7 data points (2, 3, 4, 4, 4, 5, 6) in the data set that is greater than 2.
Statement d: A histogram would have a maximum of 7 bars. This is because there are 7 unique values in the data set (0, 1, 2, 3, 4, 5, 6), and each unique value would correspond to a bar in the histogram.
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write the 5th and 8th terms of an AP whose 10th term is 43 and common difference is 4.
Answer:
t5=23 t8=35
Step-by-step explanation:
t5=?
t8=?
t10=43
d=4
tn=a+(n-1)d
t10=a+(10-1)4
43= a+(9)4
43=a+ 36
a=7
t5=7+(4)4
t5=7+16
t5=23
t8=7+(7)4
t8=7+28
t8=35
A lady decides she wants to start saving more money so she can buy a house. So, she decides to trick herself into saving by creating a challenge for herself. She bought a box of 100 envelopes and wrote the numbers 1-100 on separate envelopes. Twice a week, she drew two envelopes at random and put the corresponding amount of cash inside. (So, if she drew envelope 23, she put $23 inside). How much will she save? How long will it take her to fill all the envelopes?
Answer:
she should at least have $1,150 in at least 575 weeks
Step-by-step explanation: