Answer:
1+-1=0 I would assume that would be sufficient unless Im underthinking it.
An equation to model the sum of the situation will be +1 - 1 = 0.
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.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that "A hydrogen atom has a zero charge because it has been negatively charged electron and one positively charged proton."
The expression for the given situation will be written as below:-
+1 - 1 = 0
Therefore, the equation to model the sum of the situation will be +1 - 1 = 0.
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please evaluate 9^2 - √81
Answer:
hope it helps you.........
Answer:
72
Step-by-step explanation:
9² - √81
= (9 × 9) - √9 × 9
= 81 - √9²
= 81 - 9
= 72
Simplify 3(8x+2y)
A. 30x+y
B. 24x+2y
C. 24x+6y
D. 30xy
Answer:
The choose C. 24x+6y
Step-by-step explanation:
[tex]3(8x + 2y) = 24x + 6y[/tex]
I hope I helped you^_^
Jessica had 207 dollars to spend on 8 books. After
buying them she had 15 dollars. How much did each book cost
207$ - 15$ = 192$
192$ : 8 = 24$
Answer: Each book costed 24$.
A box has 59 cubic inches we need to find what is the length and width and also height explain how you got the answer and also solve the problem
Answer:
59÷4
you will find the answer
WILL GIVE BRAINLEST 100Pts
What is the value of Car A and Car immediately after they are purchased and driven off the car lot?
Answer:
38,4000 and 25,150
Step-by-step explanation:
add colum 1 and 3 together on each side for each different car and divide them by the percentage
Find the measures of these missing angles.
d=
e=
f=
(All answers are in degrees)
Answer:
Angle d = 90 degrees
Angle e = 48 degrees
Angle f = 180 - 48 = 132 degrees
Step-by-step explanation:
What is the coefficients in 11x-4+8y
Answer:
11x and 8y
Step-by-step explanation:
give brainliest please I need it to level up
The sum of 9 and a number is twice a number plus 14. Write an equation.
Answer:
9+x = 2y+14
Step-by-step explanation:
It says 9 plus a number, so plug in x for 'a number', and it says 'is twice a number plus 14'. Plug in '=' for is another variable for 'a number', and last but not least, just put +14 for plus 14
the digits 2, 4, 6 and 8 are each used once to create two 2 - digit numbers. What is the largest possible difference between the two 2 - digits numbers?
Answer:
62
Step-by-step explanation:
you make the largest and smallest 2 digit numbers which are 24 and 68. then you find the difference which gives you 62
The sum of the two girls' ages is 24, and the difference between their ages is 6. What are the girls' ages?
First, let's create two variables to express the girls' ages.
x=age of girl 1
y = age of girl 2
Now, let's create our expressions
x+y = 24
x-y=6
Let's solve by elimination
2x = 30
Divide both sides by 2
x=15
We can plug 15 in for x into one of our expressions
15 + y = 24
Subtract both sides by 15
y = 9
The older girl is 15 years old and the younger girl is 9 years old.
Please answer correctly and no links
Answer:
l-12 - (-15)l = 3. hope this helps
Step-by-step explanation:
- Zombie
Find the circumference of the circle. Use π ≈ 3.14 5cm
Answer:
31.4cm
Step-by-step explanation:
Use 2 pie r
Solve the equation.
y +8= 3 pls help 20 points
Answer:
y = 3-8 =-5
Step-by-step explanation:
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hi <3
you have to isolate the variable 'y'
to do that, just subtract 8 from both sides of the equation
thus, y = 3 - 8
giving you an answer of y = -5
hope this helps :)
if 2745/28.5 = 168 then 274.5 / 2.85 = ?
Answer:
274.5 / 2.85 = 96 . 31 is the answer....
Step-by-step explanation:
96.31578947 will be the full answer of the following question.
3 by 2 + 8 by 6 =31
Answer:
[tex] \frac{3}{2} + \frac{8}{6} = 31 \\ \frac{9 + 8}{6} = 31 \\ \frac{17}{6} = 31 \\ the \: equation \: is \: incorrect[/tex]
2(8x-4)-2x < 4x+12
the sign is supposed to be less than or equal to
Answer: x < 2
Step-by-step explanation:
Given expression
2 (8x - 4) - 2x < 4x + 12
Expand parentheses and apply the distributive property
16x - 8 - 2x < 4x + 12
Combine like terms
(16x - 2x) - 8 < 4x + 12
14x - 8 < 4x + 12
Add 8 on both sides
14x - 8 + 8 < 4x + 12 + 8
14x < 4x + 20
Subtract 4x on both sides
14x - 4x < 4x + 20 - 4x
10x < 20
Divide 10 on both sides
10x / 10 < 20 / 10
[tex]\boxed{x<2}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
[tex] \fbox { \fbox{Solution}}[/tex]
Given[tex]2(8x-4)-2x < 4x+12[/tex]
Solving The Equation[tex]16x-8-2x < 4x+12[/tex]
Solving The Like Terms[tex]16x-2x-8 < 4x+12[/tex]
[tex]= 14x-8 < 4x+12[/tex]
Adding 8 in both sides[tex]= 14x-8+8 < 4x+12+8[/tex]
[tex]= 14x < 4x+20[/tex]
Bringing 4x To Left side[tex]= 14x-4x < 20[/tex]
[tex]= 10x < 20[/tex]
[tex] = 10x < 20 \\ \\ = x < \frac{20}{10} \\ \\ = x < \cancel \frac{20}{10} \\ \\ = x < 2[/tex]
Hope This Helps YouK = [ 14 -13 0 3 8 -1 -10 -2 5 ] find the determinant of K
I suppose K is the matrix
[tex]K = \begin{bmatrix}14 & -13 & 0 \\ 3 & 8 & -1 \\ -10 & -2 & 5\end{bmatrix}[/tex]
To compute det(K), you can use a simple cofactor expansion along the first row:
[tex]\det(K) = 14\times\det\begin{bmatrix}8 & -1 \\-2 & 5\end{bmatrix} - (-13)\times\det\begin{bmatrix}3 & -1 \\ -10 & 5\end{bmatrix} + 0\times\det\begin{bmatrix}3 & 8 \\ -10 & -2\end{bmatrix} \\\\ \det(K) = 14\times(8\times5-(-1)\times(-2)) + 13\times(3\times5-(-1)\times(-10)) + 0 \\\\ \det(K) = 14\times38 + 13\times5 = \boxed{597}[/tex]
-7x + 9 In the expresion show, which of the following is the constant?
Answer:
9 is the constant
Step-by-step explanation:
-7 is the coeffiecent (the number multipled/divided by the variable)
x is the variable (unknown number)
+ 9 is the constant (a number that is NOT multiplyed/divided by the varaible)
For f(x) = 2x + 1 and g(x) = x^2 - 7, find (f-g)(x)
Answer:
[tex]\displaystyle (f - g)(x) = -x^2 + 2x + 8[/tex]
Step-by-step explanation:
We are given the two functions:
[tex]\displaystyle f(x) = 2x + 1 \text{ and } g(x) = x^2 - 7[/tex]
And we want to find:
[tex]\displaystyle (f- g)(x)[/tex]
Recall that:
[tex]\displaystyle (f - g)(x) = f(x) - g(x)[/tex]
Substitute and simplify:
[tex]\displaystyle \begin{aligned}(f-g)(x) &= f(x) - g(x) \\ \\ &= (2x + 1) - (x^2 - 7) \\ \\ &= (2x +1 )+ (-x^2 + 7) \\ \\ &= -x^2 +2x + 8\end{aligned}[/tex]
In conclusion:
[tex]\displaystyle (f - g)(x) = -x^2 + 2x + 8[/tex]
Answer:
[tex]→(f - g)(x) \\ = f(x) - g(x) \\ = (2x + 1) - ( {x}^{2} - 7) \\ = 2x + 1 - {x}^{2} + 7 \\ = \boxed{ - {x}^{2} + 2x + 8}✓[/tex]
-x²+2x+8 is the right answer.is a two digit number always less than a three digit number
Option C is correct. Whether a two-digit number is always less than a three-digit number depends on the first digit in the number.
A number can be a combination of a positive and negative integer. For example,
23 is a 2 positive digits number -231 is a 3 digits number (containing a negative and positive integer)We can see from the numbers that 23 (a two digits number ) is greater than -230 (a 3 digits number) which falsifies the claim that a two-digit number is always less than a three-digit number.
The veracity of the claim all depends on the first digits of the number (whether it is a positive or negative integer)
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Given: m∠ACB = m∠ABC
Prove: ∠XCA = ∠YBA
Answer:
Given that <ACB is congruent to <ABC we can infer that the triangle formed is an isosceles triangle. If B and C are both congruent and the distance from c and x and b and y are also congruent than the angles are congruent.
Step-by-step explanation:
find the slope between (1,16) and (9,9)
Answer:
[tex]slope = \frac{y2 - y1}{x2- x1} \\ = \frac{9 - 16}{9 - 1} \\ = \frac{ - 7}{8} \\ slope = \frac{ - 7}{8} \\ thank \: you[/tex]
The table shows the changes in elevation of a hiker each day for three days. How many miles of elevation must the hiker gain on the fourth day to gain 1/4
mile of elevation over the four days?
days:
1: -1/4
2: 1/2
3: -1/5
4:?
Using operations of sum/subtraction with fractions, it is found that he must gain [tex]\frac{1}{5}[/tex] of miles of elevation on the fourth day.
---------------------------
On the first day, his net elevation was of [tex]-\frac{1}{4}[/tex]On the second day, his net elevation was of [tex]\frac{1}{2}[/tex]On the third day, his net elevation was of [tex]-\frac{1}{5}[/tex]On the fourth day, his net elevation was of x.We want to total to be of [tex]\frac{1}{4}[/tex].Thus, we have to solve the sum of the four days equal to [tex]\frac{1}{4}[/tex] for x.---------------------------
[tex]-\frac{1}{4} + \frac{1}{2} - \frac{1}{5} + x = \frac{1}{4}[/tex]
[tex]\frac{-5 + 10 - 4 + 20x}{20} = \frac{1}{4}[/tex]
[tex]\frac{1 + 20x}{20} = \frac{1}{4}[/tex]
[tex]1 + 20x = 5[/tex]
[tex]20x = 4[/tex]
[tex]x = \frac{4}{20} = \frac{1}{5}[/tex]
He must gain [tex]\frac{1}{5}[/tex] of miles of elevation on the fourth day.
A similar problem is given at https://brainly.com/question/16521826
The length of a rectangle is six times its width.
If the area of the rectangle is 600 in, find its perimeter.
Answer:
140 in
Step-by-step explanation:
x = length
y = width
x = 6y
area = x × y = 600 in² (I hope you forgot to put the ² on the in and not your teacher).
perimeter = 2x + 2y
using the first equation as substitute in the second equation we get
6y × y = 600
6y² = 600
y² = 100
y = 10 in
x = 6y = 6×10 = 60 in
perimeter = 2×60 + 2×10 = 120 + 20 = 140 in
How do you solve question 1
9514 1404 393
Answer:
(A) 1 only
Step-by-step explanation:
Factor numerator and denominator and see what cancels.
[tex]f(x)=\dfrac{2x^2+14x-16}{x^2-9x+8}=\dfrac{2(x-1)(x+8)}{(x-1)(x-8)}=\dfrac{x-1}{x-1}\cdot\dfrac{2(x+8)}{x-8}\\\\f(x)=\dfrac{2x+16}{x-8}\qquad x\ne1[/tex]
The factor of x-1 in the original denominator means the expression is undefined at x=1. The reduced expression is defined there, so the discontinuity at x=1 could be removed by defining f(1) = -18/7.
There is a removable discontinuity at x=1 only. The discontinuity at x=8 is a vertical asymptote where the function changes sign. It cannot be removed by defining a value for the function there.
3=2 1/6 + ____
Please help or explain I’m confused!
Answer:
5/6Step-by-step explanation:
Let's take the blank as "x"
[tex]3 = 2 \frac{1}{6} + x[/tex]
[tex] = > x = 3 - 2 \frac{1}{6} [/tex]
[tex] = > x = 3 - \frac{13}{6} [/tex]
[tex] = > x = \frac{18 - 13}{6} [/tex]
[tex] = > x = \frac{5}{6} (ans)[/tex]
Hence,
In the blank there will be 5/6
Answer:
5/6
Step-by-step explanation:
The answer is 5/6. To get this, ignore the 2 for now, and focus on 1/6. We want to make 1/6 a whole number, because 1 + 5 is 6 (if we make 1/6 a whole number it will be 1). So subtract 1 from 6, and you get 5. 5/6 + 1/6 = 6/6 or 1. Now you can bring the 2 back, and you have 3 = 2 1/6 + 5/6.
Hope this helped!
I’m not good at angles. So please help
Answer:
x=20°
Step-by-step explanation:
sum of angles of a triangle=180°
76+44+3x=180
120+3x=180
3x=180-120=60
x=60/3=20
solve for p -5 (p+3/5)=-4
Answer:
Therefore, p is equivalent to -1/6 or -0.16666
Can someone please help me
Answer:
-m + 7n - 2
Step-by-step explanation:
[tex](-2m-3n-1)+(5m+3n+4)+(-4m+7n-5)=\\-2m-3n-1+5m+3n+4-4m+7n-5=\\-2m+5m-4m-3n+3n+7n-1+4-5=\\-m+7n-2[/tex]
what is the equation of the line, in the point-slope form, of a line with a slope of -2/3, which passes through the point (-6,1)
Answer:
(y – 1) = -⅔(x + 6)
Step-by-step explanation:
Given:
Slope of -⅔Point/Coordinate of (-6, 1)To find the point slope form, first use the formula:
(y – y_1) = m(x – x_1).
Where (x_1, y_1) is a given point, and m is the slope of the line.
The next and final step is to substitute the given information into the equation like this.
(y – y_1) = m(x – x_1) →
(y – (1)) = (-⅔)(x – (-6)).
Then simplify:
(y – (1)) = (-⅔)(x – (-6)) → (y – 1) = -⅔(x + 6).
You can also verify that the information is correct if you replace the coordinate for x and y values, so that the equation is true like 0 = 0, or where both sides are the same.
(-6, 1) → (y – 1) = -⅔(x + 6) →
(1 – 1) = -⅔(-6 + 6) → 0 = 0 ✓
