Answer:
Option C. (4, -1, 3)
Step-by-step explanation:
The given system of equations is
x + y + z = 6 -----(1)
x - y + z = 8 ------(2)
x + y - z = 0 -----(3)
We subtract equation 1 by 3
(x + y + z) - (x + y - z) = 6 - 0
z + z = 6
2z = 6
z = 3
Now we subtract equation 1 by 2
(x + y + z) - (x - y + z) = 6 - 8
2y = -2
y = -1
Now we put the values of x and y in equation 1
x + (-1) + 3 = 6
x + 2 = 6
x = 6 - 2 = 4
Therefore, the solution of the equations is (4, -1, 3).
Option C is the answer.
Find the area of a square piece of cardboard for which the length of the side is 8”sq root sign”
Answer:
Area of square = 64 square units .
Step-by-step explanation:
Given : length of the side is √8.
To find : Find the area of a square piece of cardboard .
Solution : We have given side length of square cardboard = √8.
Area of square = side * side .
Area of square = √8 *√8.
Area of square = 64 square units .
Therefore, Area of square = 64 square units .
Please WILL GIVE BRAINLIEST!
What is this expression in radical form?
(4x^3y^2)^3/10
If I Kilometer= .6 miles then 25.97 kilometers equals how many miles?
Answer:
155.82 miles
Step-by-step explanation:
You multiply 6 and 25.97 to get your answer.
the answer is 155.82 miles
Solve for x: 1/4 (4x + 15) = 24
A-49
B-207/4
C-81/4
D-9
PLEASE HELPPPPP MEEE
(1/4)*(4*x+15) = 24 // - 24
(1/4)*(4*x+15)-24 = 0
1/4*(4*x+15)-24 = 0
1/4*(4*x+15)-24 = 0
x-81/4 = 0
x-81/4 = 0
x-81/4 = 0 // + 81/4
x = 81/4
x = 81/4
hope I helped
Will give alot of points!
the perimeter of a rectangle photograph is 22in the length of the photograph is 1 inch more than the width what are the dimensions of the photograph
Assume that the width=w
22=2w+2(w+1)
22=2w+2w+2
22=4w+2
20=4w
w=5
The dimensions are 4 by 5.
The dimensions of the rectangle photograph are 5.5 inches (width) by 6.5 inches (length), calculated by setting the given perimeter equal to twice the sum of the length and the width, and then solving for the width and length.
Explanation:The perimeter of a rectangle is the sum of all its sides. Given that the perimeter of the photograph is 22 inches, you can work out the length and width using algebra. Let's denote the width of the photograph as 'x' (in inches). Thus, the length is 'x + 1' since it is one inch more than the width. Since the rectangle has two equal lengths and two equal widths, its perimeter can be represented as 2*(length + width) or 2*(x + x + 1). Setting this equal to 22 (the perimeter), we get 2*(2x + 1) = 22. Solving for 'x' gives us the width, which is 5.5 inches. The length is therefore 6.5 inches, being 1 inch more than the width. Therefore, the dimensions of the rectangle are 5.5 inches by 6.5 inches.
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Nemili has 12 red triangles and 3 blue triangles how many more red triangles does Nemili have them blue triangles?
12 - 3 = 9
So Nemili has 9 more red triangles than blue triangles.
Hope this Helps!!
Convert 6 x 10 to the power of 5 into standard form
First let's write it out with just numbers
6×[tex]10^{5}[/tex]
Now solve!
Solve exponent first
10^5 = 100,000
Now multiply
6 x 100,000 = 600,000
600,000 is your answer
The number 6 x 10^5 in standard form equates to 600000. The conversion involves moving the decimal place the same number of steps as the power of ten indicates
Explanation:The conversion of 6 x 10 to the power of 5 into standard form involves interpreting the exponent as the number of places to shift the decimal point. In this case, the decimal point will be moved five places to the right.
Thus, 6 x 10 is equivalent to 600000 in standard form.
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-10e+15=95-30e
solve the equation
Hey there!:
- 10 e + 15 = 95 - 30 e
subtract 15 from both sides:
- 10 e + 15 - 15 = 95 - 30 e - 15
Simplify :
- 10 e = - 30 e + 80
Add 30 e to both sides:
- 10 e + 30 e = - 30 e + 80 + 30 e
Simplify:
20 e = 80
e = 80 / 20
e = 4
hope that helps!
Find the mean of the set data. -17 32 -9 0 52 12 -14??
To find the mean you must:
-17 + -14 + -9 + 0 + 12 + 32 + 52 = 56
Then divide 56 by how many numbers are in this set so there are 7 numbers so we divide 56 by 7 and I don't even have to do the work for this because it's basic multiplication.
The answer is: 8.
Answer:
Mean is 8
Step-by-step explanation:
Given observations,
-17, 32, -9, 0, 52, 12, -14
Sum of the observations = -17 + 32 + (-9) + 0 + 52 + 12 + (-14)
= 96 - 40
= 56
Number of observations = 7,
Hence,
[tex]\text{Mean} = \frac{\text{Sum of the observations}}{\text{Number of the observations}}[/tex]
[tex]=\frac{56}{7}[/tex]
= 8
Which of the following expressions is equivalent to 1/4(8x+12)
The equivalent expression for the given expression is 2x+3.
What is an equivalent expression?Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.
The given expression is 1/4 (8x+12).
Here, multiply 1/4 into a bracket, we get
= 8x/4 +12/4
= 2x+3
Therefore, the equivalent expression for the given expression is 2x+3.
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Subtract -a^2-5ab+3b^2 from 3a^2-2ab+3b^2
The correct answer is 4a^2 + 3ab
In order to find this, we can write the equation out as described and then follow the order of operations.
3a^2 - 2ab + 3b^2 - (-a^2 - 5ab + 3b^2) ----> Distribute the negative
3a^2 - 2ab + 3b^2 + a^2 + 5ab - 3b^2 ----> Combine like terms
4a^2 + 3ab
The subtraction -a² - 5ab + 3b² from 3a² -2ab + 3b² is -a(4a + 3b)
What is an Algebra?Algebra is the study of mathematical symbols and the rule involves manipulating these mathematical symbols.
What is Simplification?Simplification is to make something easier to do or understand and to make something less complicated.
Given
-a² - 5ab + 3b² and 3a² -2ab + 3b² are the two expression.
How to find the subtraction -a² - 5ab + 3b² from 3a² -2ab + 3b²?-a² - 5ab + 3b² from 3a² -2ab + 3b², we will have
-a² - 5ab + 3b² - (3a² -2ab + 3b²)
On simplifying,
-a² - 5ab + 3b² - 3a² + 2ab - 3b²
-4a² - 3ab
-a(4a + 3b)
Thus , the subraction is -a(4a + 3b).
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what is the factorization of the trinomial below -2x^3-2x^2+12x
-2x^3 - 2x^2 + 12x
Because we can pull out a common factor, we'll do that first to simplify the expression.
-2x(x^2 + x - 6)
Now, let's see if we can split the middle term.
Display factors of -6.
-6 * 1
-1 * 6
-3 * 2
3 * -2 (these digits satisfy the requirements for splitting the middle term)
Split the middle term.
-2x(x^2 + 3x - 2x - 6)
Group terms in pairs of two.
-2x((x^2 + 3x) - (2x - 6))
Factor each binomial.
-2x((x(x + 3)) - (2(x + 3)))
Rearrange the terms.
-2x(x - 2)(x + 3) is the fully factored form of the provided trinomial.
The factorization of the trinomial -2x^3-2x^2+12x includes first factoring out the common factor -2x, and then further factoring of the trinomial within the parenthesis results in the final factorization as -2x(x-2)(x+3).
Explanation:The trinomial in this question is -2x^3-2x^2+12x. The process we use to factor this trinomial would be to first factor out the greatest common factor (GCF) for all the terms. In this case, the GCF is -2x.
So, if we factor out -2x, we get: -2x(x^2+x-6). We can continue to factor the trinomial (x^2+x-6) inside the parenthesis then. We find that it factors to (x-2)(x+3).
Thus, the final factorization of the original trinomial is -2x(x-2)(x+3).
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if 6 subs are cut into 1/5 how many subs are there
Marta is making a quilt in the shape of a square. The length of one edge of the quilt is 2g^2h^3
We are given
Marta is making a quilt in the shape of a square
The length of one edge of the quilt is 2g^2h^3
so, we get
[tex]s=2g^2h^3[/tex]
now, we know that
area of square = length *length
so, we get
[tex]A=s^2[/tex]
now, we can plug values
and we get
[tex]A=(2g^2h^3)^2[/tex]
we can simplify it
[tex]A=2^2(g^2)^2(h^3)^2[/tex]
[tex]A=4g^4h^6[/tex].............Answer
Three less than two times a number equals four times the number plus eight. Create an equation based on this and solve.
2x-3=4x+8 Equation
-3=6x+8 Add 2x to opposite side
-11=6x Subtract 8.
x= -6/11 Answer
i ReAlLy NeEd HeLp PlZzZzZzZzZzZzZzZzZzZz
A and B because with the other three, they simplify to something else.
Simplify the expression 5a+2a+9=
Hey there!
The only thing we can do to simplify this expression is to combine 5a and 2a, the two like terms in the expression.
Our final answer is 7a + 9.
Hope this helps!
35.5 divided by 10^2=
What????
Hi there!!
Here is the answer =
Step 1 : simplify 10^2 to 100
Step 2 : 35.5 ÷100
Answer confirmed = 0.355
Hope this helps you!!!
Final answer:
Dividing 35.5 by 10 to the power of 2 (which is 100) results in 0.355, achieved by moving the decimal point two places to the left.
Explanation:
To calculate 35.5 divided by 102, you need to understand the concept of exponents. The expression 102 means 10 multiplied by itself twice, which equals 100.
Now, dividing 35.5 by 100, you move the decimal point two places to the left because dividing by a power of 10 shifts the decimal point to the left for each zero in that power. Therefore, when 35.5 is divided by 102 it will be equal 0.355.
need help with this math
Solution
Leased cost for 3 years = $3000 + 250 *36 [ 3 years = 36 months]
= 3000 + 9000
Leased the car for 3 years cost you = $12,000
The residual value = $10,000
Assume that you bought the car and used for 3 years and sold for $10,000
Cost of the car = $24,000
Sold after 3 years for $10,000
Your expense in 3 years = $24,000 - 10, 000 = $14,000
By comparing these two options, leasing the car will benefit you since it cost only $12,000.
Therefore, lease car is less expense.
The cost for buying the car and selling it after three years would be $14,000.
That is the answer. :)
Thank you.
what is 8 divided by 33 show your work
Answer:
0.24 with a line over the 24. The line means that it is repeating.
Explanation,
There is not much to explain it's just simple divison.
how do you round 533,652 to the nearest hundred thousand
Answer:
500,000
Step-by-step explanation:
Answer:
Step-by-step explanation:
if the hundred is 500+ round it up...if smaller than 500 round down. (:
Re-write this subtraction as an ADDITION of signed numbers. 3 − 7
3 + (-7)
yyyyyyyyyyyyyyyy
The addition form will be equal to 3 + (-7).
What is an expression?
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division
Given that:-
= 3 − 7
The additional form of the above expression will be:-
=3 + (-7)
Therefore the addition form will be equal to 3 + (-7).
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A rectangle has a perimeter of 30 inches. Its length is one less than three times its width. What are the length and width of the rectangle?
Perimeter of a rectangle can be represented by 2* length + 2 * width
We can represent the width with the variable x
We can represent the length by the expression 3x-1
So, now we can make a forumla and solve
2(3x-1) + 2(x) = 30
6x-2+2x = 30
8x = 32
x = 4 is the width of the rectange.
Now we find the length
3(4)-1
11 = Length
The width of the rectangle is 4 inches and its length is 11 inches.
What is the formula for the Perimeter of Rectangle?A rectangle is a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.
The Perimeter of rectangle is -
P = 2(x + y)
The Area of rectangle is -
A = xy
We can write -
P = 2x + 2y
Py = 2xy + 2y²
Py = 2A + 2y²
2y² - Py + 2A = 0
y = ± (P² - 16A)/4
Given is a rectangle that has a perimeter of 30 inches. Its length is one less than three times its width
Assume the length to be [x] inches and width be [y] inches. Then, we can write -
[x] = 3[y] - 1
and
2(x + y) = 30
2(3y - 1 + y) = 30
2(4y - 1) = 30
8y - 2 = 30
y = 4 inches
then -
x = 12 - 1
x = 11 inches
Hence, the width of the rectangle is 4 inches and its length is 11 inches.
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A commuter has $245 in his savings account this account changes by -$15 each week he buys a ticket.in one time period, the account changed by -$240.for hot many weeks did the commuter buy tickets?
what is the x-intercept of the function graphed? help!
i believe your answer is c. because the x value goes first in a coordinate. hope this helps!
Which is the inverse of the function f(x) = x2 − 4?
The function is not one-to-one function, hence the inverse doesn't exist for the whole domain of the function. But if we restrict the domain to [tex]x\in(-\infty,0][/tex] or [tex]x\in[0,\infty)[/tex], then we can give the inverse.
[tex]f(x)=x^2-4\\\\y=x^2-4\\\\x^2=y+4\\\\x=\sqrt{y+4} \vee x=-\sqrt{y+4}\\\\f^{-1}(x)=\sqrt{x+4}\vee f^{-1}(x)=-\sqrt{x+4}[/tex]
So, when [tex]D_{f(x)}:x\in(-\infty,0][/tex], the inverse is [tex]f^{-1}(x)=-\sqrt{x+4}[/tex] and when [tex]D_{f(x)}:x\in[0,\infty)[/tex], the inverse is [tex]f^{-1}(x)=\sqrt{x+4}[/tex].
The inverse of the function f(x) = x^2 - 4 is found by switching the x and y variables and solving for y. Because y is being squared, there are two solutions: y = ±sqrt(x + 4).
Explanation:The inverse of a function f(x) is found by switching the x and y variables and solving for y. For the function f(x) = x^2 - 4, let us swap x and y, it becomes x = y^2 - 4. Next, solve for y. However, because y is being squared, there will be two solutions, one for the positive square root and other for the negative square root. Therefore, the inverse of the function f(x) = x^2 - 4 is y = ±sqrt(x + 4).
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What will happen to the mean if the outlier is removed?
4, 5, 5, 7, 9, 17
1. It will not change.
2. It will be the same as the median.
3. It will decrease.
4. It will increase.
Solution:
The outlier is 17
With Outlier
4 + 5 + 5 + 7 + 9 + 17 = 47
47 / 6 = 7.83333333...
Without Outlier
4 + 5 + 5 + 7 + 9 = 30
30 / 5 = 6
Mean With Outlier - 7.8333...
Mean Without Outlier - 6
Answer - 3. It will decrease
Answer:
17
Step-by-step explanation:
PLZ SHOW all WORK 40 points!!!!
Answer:
Kim is 24 and her sister is 12.
Step-by-step explanation:
a) Xx2+X
I used the variable X because that represents Kim's sisters age, which you need to know in order to find out Kim's age. To get Kim's sisters age use a guess and check table or pick numbers until you get to the correct answer.
b) 12x2=24
24+12=36
My solution is Kim is 24 and her sister is 12.
Darcy and Leah are looking at some fabric selections in a store. All of the selections are marked the same price, and the amount, in yards, of each fabric is written as an improper fraction. Which amount is the greatest? A. 33⁄4 B. 22⁄3 C. 78⁄9 D. 43⁄5
The amount is written in improper fraction.
To know, which amount is greatest, we will convert these improper fraction to proper decimal form values by division method and then we will compare the values.
A. [tex]\frac{33}{4}=8.25[/tex]
B. [tex]\frac{22}{3}=7.33[/tex]
C. [tex]\frac{78}{9}=8.66[/tex]
D. [tex]\frac{43}{5}=8.60[/tex]
Hence, the greatest amount is option C. [tex]\frac{78}{9}[/tex]