Answer:
(x + 8)(x - 8)
Step-by-step explanation:
Difference of squares
a^2 - b^2 = (a + b)(a - b)
In this case
x^2 - 64
= x^2 - 8^2
= (x + 8)(x - 8)
The equation x² - 64 is a difference of two squares and can be factored using the formula for the difference of squares, which leads to (x - 8)(x + 8).
Explanation:The equation given is x² - 64, which is a difference of two squares. In mathematics, the difference of two squares is any expression that can be rewritten as the square of a number or expression, subtracted from the square of another number or expression. To factor this expression, we can use the formula a² - b² = (a - b)(a + b).
So, we have
x² - 64
= (x)² - (8)². Applying the formula, this factors to (x - 8)(x + 8).
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what is the slope of the graph shown below ?
A. 4/3
B. 1/4
C. -3
D. 4
Answer:
D. 4Step-by-step explanation:
[tex]\text{The slope}[/tex]
[tex]m=\dfrac{rise}{run}[/tex]
[tex]rise=-4\\\\run=-1[/tex]
[tex]m=\dfrac{-4}{-1}=4[/tex]
The required slope of the graph exists 4.
Slope of the graphThe graph exists in a straight line.
The line passes through the points (0, -3) and [tex]$\left(\frac{3}{4}, 0\right)$[/tex].
We know the slope of a straight line passing through the points (a, b) and (c, d) is given by
[tex]$m=\frac{d-b}{c-a} .$$[/tex]
Therefore, the slope of the given line is
[tex]$m=\frac{0-(-3)}{\frac{3}{4}-0}$$[/tex]
[tex]$&\Rightarrow m=\frac{3}{\frac{3}{4}} \\[/tex]
[tex]$&\Rightarrow m=3 \times \frac{4}{3}\end{aligned}$$[/tex]
[tex]$\Rightarrow m=4 \text {. }$$[/tex]
The required slope of the graph exists 4.
Therefore, the correct answer is option D. 4
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Muli spent 3/10 of thus salary on flood and 2/3 on rent. He was left with sh. 2100.what was his salary?
Step-by-step explanation:
Let the total amount of salary be X, then
3/10X + 2/3X + amount left= his salary(X)
(9X + 20X)/ 30 + 2100 = X
29X/30 - X = -2100
(29X - 30X)/30 = -2100
by cross multiplying
-X = -2100×39
-X = -81900
divide both side by -1
X = 81900.
therefore his salary = 81900
Answer:
Muli's salary = 62,000
Step-by-step explanation:
Let Muli's salary be x.
Money spent on food = 3/10 of x = 3x/10
Money spent on rent = 2/3 of x = 2x/3
Money left with him = 2100
(3x/10) + (2x/3) + 2100 = x
x - (3x/10) - (2x/3) = 2100 ( LCM = 30)
30x/30 - 9x/30 - 20x/30 = 2100
(30x - 9x - 20x ) / 30 = 2100
x/30 = 2100
x = 2100 * 30 = 62,000
20pts
Solve for x
(4(x-5))/8=9y
Answer:
x=18y+5
Step-by-step explanation:
Answer:
x = 5 + 18y
Step-by-step explanation:
Equation: [tex]\frac{4(x - 5)}{8}[/tex] = 9y
Multiply and distribute: 4x - 20 = 72y
Add: 4x = 20 + 72y
Divide: x = 5 + 18y
The following table shows the length (in days) of each of the 9 Tucker family vacations.
Based on this data, what is a reasonable estimate of the probability that the next Tucker family vacation lasts less than 3 days?
CHOOSE 1 ANSWER:
A.) 0.24
B.) 0.44
C.) 0.56
D.) 0.89
Answer:
the correct answer is C
Step-by-step explanation:
Number of favorite outcomes=5
Total Number of outcomes=9
5/9 = 0.56
The probability that the next Tucker family vacation lasts less than 333 days is about 0.560.560, point, 56.
suppose y varies directly with x. if y=7 when x=2, find y when x=3
A. 8
B. 7/6
C. 21/2
D. 6/7
Solve the equation for x
Cx-4=7
Answer:
( A )
Step-by-step explanation:
To solve this problem you must apply the procedure shown below:
1. You have the following equation given above:
2. The negative four will pass as a positive four to the right member.
3. Te sum of 7 and 4 will be divided by , as following:
Answer:
Step-by-step explanation:
The given equation is :
Cx-4=7.
To solve for x we isolate the x term .
Adding 4 both sides:
Cx=7+4
Cx=11
To x term C is multiplied ,performing the opposite operation that is dividing both sides by C we have :
x=[tex]\frac{11}{C}[/tex]
What value of b will cause the system to have an infinite number of solutions?
y = 6x – b
–3x + y = –3
Solving for b by simplifying both sides of the equation, then isolating the variable.
b = −y + 6x
----
Choosing three values for x and substitute in to find the corresponding y values.
(0,−3) , (1,0) , (2,3)
____
I hope this helps, as always. I wish you the best of luck and have a nice day, friend..
Answer:
Step-by-step explanation:
y = 6x -b
and -3x +y =-3
on simplifying equation 2 ,we have y = 3x -3
System of equation has infinite number of solution if one equation can be obtained by multiplying by suitable non zero number
if we multiply equation by 2 we get y =6x -6
Since coefficient of x and y is same therefore comparing the value of x b with constant in another equation which is 6 .
therefore b =6
How do I find the inverse function of this equation
Answer:
y=ln(x/(1-x))
Step-by-step explanation:
y=e^x/(1+e^x)
Cross multiply
y(1+e^x)=e^x
Distribute
y+ye^x=e^x
Put anything with x on with side and everything without x on opposing side:
y=e^x-ye^x
Factor right hand side
y=(1-y)e^x
Divide both sides by (1-y)
y/(1-y)=e^x
Use natural log.
ln(y/(1-y))=x
The inverse is
y=ln(x/(1-x))
6. Chris can buy an online magazine
subscription for $5.99 per month or
$65 per year. How much will he save
by paying for the whole year at once
rather than one month at a time?
Answer:
$6.88
Step-by-step explanation:
We are trying to compare two options: Buying a magazine for 12 months or for just 1 year.
To solve this, we can multiply the monthly rate by 12 because there are 12 months in a year.
5.99 x 12 = 71.88
The other option is to just pay $65 dollars for a whole year (12 months).
Comparing the two options, we see paying for the whole year is cheaper than paying for each month individually. Because of this, we can subtract $65, the cheaper option, from $71.88 to get $6.88
Chris will save $6.88 by paying for the whole year instead of purchasing for each month.
Whatis the value of the expression
4(x + y)
when x= 6 and y= 24?
Answer:
120
Step-by-step explanation:
Evaluate the expression by substituting the given values into it
4(6 + 24) = 4 × 30 = 120
What number is missing from the number pattern? 1,2,5,10,__,26,37
Answer:
17 is the missing the number
Step-by-step explanation:
Pattern: +1, +3, +5, +7, etc.
Brenda is cooking couscous. The recipe says she requires 480 grams of couscous for 4 people. How many will she need for 14?
[tex]\bf \begin{array}{ccll} grams&people\\ \cline{1-2} 480&4\\ x&14 \end{array}\implies \cfrac{480}{x}=\cfrac{4}{14}\implies \cfrac{480}{x}=\cfrac{2}{7}\implies 3360=2x \\\\\\ \cfrac{3360}{2}=x\implies 1680=x[/tex]
given that (5,4) is on the graph of f(x), found the corresponding point for the function f (x)+4
Answer:
The corresponding point is (5,8)
Step-by-step explanation:
In this problem we know that
The rule of the transformation is equal to
(x,f(x)) ------> (x,f(x)+4)
so
for the point (5,4)
x=5, f(x)=4
substitute
(5,4) ------> (5,4+4)
(5,4) ------> (5,8)
therefore
The corresponding point is (5,8)
Please help. The survey data, and question is in the picture provided.
Answer:
[tex]\frac{83}{186}[/tex]
Step-by-step explanation:
In probability, "OR" means "+" and "AND" means "*".
The total amount of people is:
32 + 54 + 78 + 112 + 96 = 372
Number of diabetic patients are 54
Number of eye patients are 112
Since we want "OR", we will add the two probabilities:
P(diabetic or eye problem) = 54/372 + 112/372 = 83/186
Write 0.0002507 in scientific notation.
Answer:
2.507* 10^-4
Step-by-step explanation:
0.0002507
We need to have one number to the left of the decimal
We move the decimal 4 places to the right
Since we moved the decimal to the right, the exponent on the power of 10 is negative
2.507* 10^-4
If y+3y+5y=−18
y
+
3
y
+
5
y
=
−
18
, then what is the value of y
y
?
Answer:
y=-2
Step-by-step explanation:
y+3y+5y=−18
Combine like terms
9y = -18
Divide each side by 9
9y/9 = -18/9
y = -2
The equation y + 3y + 5y = -18 simplifies to 9y = -18; solving for y, we find y = -2.
Explanation:The equation presented is y + 3y + 5y = −18. To find the value of y, we first need to simplify the left-hand side of the equation by adding the similar terms together. In this equation, all terms on the left-hand side are multiples of y. Thus, y + 3y + 5y simplifies to 9y.
Our equation then becomes 9y = -18. To solve for y, we divide both sides of the equation by 9, yielding y = -2.
So, the value of y in this equation is -2.
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Which of the following best describe the term definition
The most appropriate description ascribed to the meaning of definition from the options given is ; A precise statement of the qualities of an idea, object or process.
Definition refers to a description which is given to a word, idea or phenomenon such that it encompasses the actual characteristics and meaning of such phenomenon. Logical meaning, assumptions or unofficial descriptions cannot be taken to be the definition of a phenomenon.Therefore, since the definition ascribed to a process or phenomenon as to be original and precise, then the most appropriate statement is the option C.
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match the meaning of each of the following expressions
1: n+5
2: n-5
3: x+8
4: x-8
5: 8-x
6: 5-n
7: x+(5+7)
8: x+(8+2)
9: x+(8-2)
10: x+x
625 kids play sports. If there are 125 kids on each team, how many sports are there?
Answer:
5 sports
Step-by-step explanation:
To find the number of sports, take the total number of kids and divide by the number of teams
625/125 = 5
There are 5 sports
[tex]\text{Hey there!}[/tex]
[tex]\text{In order for you to find the number of sports were there, we have to divide!}[/tex]
[tex]\bullet\ \text{625 kids play sports}[/tex]
[tex]\bullet\ \text{125 kids on each team}[/tex]
[tex]\text{625 will be our numerator (or front number)}[/tex]
[tex]\text{125 will be our denominator (or back number)}[/tex]
[tex]\dfrac{625}{125}=625\div125=5[/tex]
[tex]\boxed{\boxed{\bf{Your\ answer:5}}}\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
A length on a map is 7.5 inches. The
scale is 1 inch:5 miles. What is the
actual distance?
A 1.5 miles C 12.5 miles
B 2.5 miles D 37.5 miles
Answer:
Option D 37.5 miles
Step-by-step explanation:
we know that
The scale on a map is [tex]\frac{1}{5}\frac{in}{mi}[/tex]
so
using proportion
Find the actual distance for a length on a map of 7.5 in
Let
x ----> the actual distance
[tex]\frac{1}{5}\frac{in}{mi}=\frac{7.5}{x}\frac{in}{mi}\\ \\ x=7.5*5\\ \\x=37.5\ mi[/tex]
a coin is tossed two times find the probability of getting (1 . exactly one head (2.at least one head (3. at most one head
[tex]|\Omega|=2^2=4[/tex]
1.
[tex]|A|=2\\P(A)=\dfrac{2}{4}=\dfrac{1}{2}[/tex]
2.
[tex]|A|=3\\P(A)=\dfrac{3}{4}[/tex]
3.
[tex]|A|=3\\P(A)=\dfrac{3}{4}[/tex]
Solve for x.
x(x+1)≤0
Write the solution using interval notation. Use the union symbol ∪ to express the solution as a union of disjoint intervals. Finite endpoints of all intervals should be integers. If there are no solutions, use the symbol ∅ for the empty set. Use the set notation {a} to represent an isolated solution a.
Answer:
x(x + 1) ≤ 0
-1 ≤ x ≤ 0
{x | x ≥ -1 and x ≤ 0}
Follow steps:
Solving the Inequality x(x+1)≤0
To solve x(x+1)≤0, we need to find values of x where the product is negative or zero. X can be split into the regions x < 0 and x > 0. As x approaches zero from either direction, x(x+1) approaches zero as well. The function is zero at the roots of the equation x(x+1) = 0, which are x = 0 and x = -1. These two roots divide the real line into three intervals: (-∞, -1), (-1, 0), and (0, ∞). Analyzing each interval:
For x in (-∞, -1), x < -1 and x+1 < 0, so the product x(x+1) is positive.
For x in (-1, 0), x is negative and x+1 is positive, so the product x(x+1) is negative.
For x in (0, ∞), both x and x+1 are positive, and thus, the product x(x+1) is positive.
The inequality is only satisfied in the interval where the product is negative or zero. Therefore, the solution is [{-1}, 0], which can be written in interval notation as (-1, 0]. This is a single continuous interval that includes the root x = 0 and excludes the root x = -1.
Finally, using interval notation, we express the solution to the inequality x(x+1)≤0 as (-1, 0].
On Election Day, the temperature was 56°F in Durkeeville. Over in Tindertown, the temperature was 48°F. What was the difference in temperature between the two places?
Answer:
The difference is 8 F
Step-by-step explanation:
The difference means subtract
56-48 = 8
The difference is 8 F
4x + 8y = 16
4x-8y = 0
Answer:
[2, 1]
Step-by-step explanation:
By the Elimination method, you are left with 8x = 16 because -8 and 8 are what are called Additive Inverses, meaning they result in 0⃣; x = 2, plug 2⃣ back into both equations, and you will see that y = 1, making the solution above.
How many solutions does the equation 4s + 8 = 3 + 5 + 4s have? (5 points) Two None One Infinitely many
Answer:
Infinitely many
8
Step-by-step explanation:
First, you subtract by 4s both sides of equation.
4s+8-4s=3+5+4s-4s
Then, simplify.
8=3+5
Same thing like order of operations.
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
Add the numbers from left to right.
3+5=8
8=8 is true
8 is the correct answer.
Infinitely many is the correct answer.
The given equation has no solution.
As the given equation is:
[tex]4s+8=3+5+4s\\[/tex]
So, if we simplify we get;
[tex]8=3+5+4s-4s[/tex] (subtracting 4s from both sides of the equation)
Now, on adding we get;
[tex]8=8[/tex]
So, LHS=RHS.
Therefore, there is no variable for which we can find the solution.
Hence option(b) none is the correct answer
What's an equation in math?An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra. Algebra is used in maths when you do not know the exact number in a calculation. Many professionals use equations every day, including air traffic controllers, architects, computer programmers and carpenters.
What is an equation example?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. For example, 3x – 5 = 16 is an equation. Solving this equation, we get the value of the variable x as x = 7.
What is the best definition for equation?Equation is defined as the state of being equal and is often shown as a math expression with equal values on either side, or refers to a problem where many things need to be taken into account. An example of an equation is 2+2 = 3+1.
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If DH = 4x - 2 and FH = x + 28, find the value of x for which DEFG must be a parallelogram.
6
10
7
8
Answer:
The answer for this question is B (10) I have shown a step by step explaination for you to understand how I got this answer
Step-by-step explanation:
4x-2=x+28
-x -x
3x-2=28
+2 +2
3x=30
3x/3 = 30/3
x=10
The value of x for which DEFG must be a parallelogram is Option(B) 10 .
What is a parallelogram ?A parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.
How to find the value of x for which the figure is a parallelogram ?As we know that for a parallelogram, the opposite adjacent sides are always parallel and equal in length.
Therefore, for DEFG to be a parallelogram, the sides DH and FH must be equal in length.
We have, DH = FH
⇒ 4x - 2 = x + 28
⇒ 3x = 30
∴ x = 10
Thus, the value of x for which DEFG must be a parallelogram is Option(B) 10 .
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True or false? Many triangular shapes can be circumscribed about a given circle
Answer:
False.
Because Only one circle can be circumscribed about a given triangle.
Final answer:
The statement that many triangular shapes can be circumscribed about a given circle is true, as an infinite number of triangles can be formed by connecting any three distinct points on the circumference of the circle.
Explanation:
The statement "Many triangular shapes can be circumscribed about a given circle" is true. By definition, a circumscribed triangle is one that surrounds a circle, touching the circle exactly at its perimeter at three points.
Given a circle, you can indeed construct infinite triangles that circumscribe the circle, as for any set of three points on the circumference of the circle, a unique triangle can be formed.
In mathematical terms, three points determine one of these curves; that is, through any three points not in a straight line on a circle's circumference, we can draw a unique triangle which will circumscribe the circle.
Since there are an infinite number of points on a circle's circumference, we can choose an infinite number of triplets of points, each producing a different circumscribed triangle.
Simplify the expression below if x > 0 and y > 0
Answer:
√'xy/y
Step-by-step explanation:
1. [x*y^(1/2)] / [y * x^(1/2)]
= [x^(1/2) * y^(1/2)] / y
= (xy)^(1/2) / y
You'll get your answer as : √'xy/y
HOW do you solve this?
What could be the side lengths of a right triangle?
A. 27, 35, 43
B. 26, 34, 42
C. 25, 33, 41
D 24, 32, 40
Answer:
you just need memorize some of the side lengths of right triangle, or you can use this formula to calculate: a^2 + b^2 = c^2
For example, you need memoreize this group of side lengths of right triangle: 3 , 4 , 5
and in your options, there is a group is same as 3, 4 , 5 but it's 8 times bigger.
The answer is:
D. 24, 32, 40
Answer:
D.
Step-by-step explanation:
In a right triangle, the sum of the squares of the two shorter sides will equal the square of the longest side.
The law to observe here is the Pythagorean theorem where;
[tex]a^2+b^2=c^2\\[/tex]
where a and b are the two shorter sides where as c is the longest side/hypothenuse
In this question the last option is correct.How?
Lets take a=24 and b=32, what is c?
You apply;
[tex]a^2+b^2=c^2\\\\24^2+32^2=c^2\\\\\\576+1024=1600\\\\c^2=1600\\\\c=\sqrt{1600} =40[/tex]
Hence option D is correct where ;
[tex]24^2+32^2=40^2[/tex]
If p(x) = x2 + 7x + 3 is divided by x + 4, the remainder is