If the equation is an identity or if it has no solution, write identity or no solution.
7n + 5 − 9n = 8 − 2n − 3
Answer:
7n + 5 − 9n = 8 − 2n − 3 = true
-2 n + 5 = 5 - 2 n = true
Step-by-step explanation:
Left-hand side:
Simplify the following:
7 n - 9 n + 5
Grouping like terms, 7 n - 9 n + 5 = 5 + (7 n - 9 n):
5 + (7 n - 9 n)
7 n - 9 n = -2 n:
Answer: -2 n + 5
____________________________
Right-hand side:
Simplify the following:
-2 n - 3 + 8
Grouping like terms, -2 n - 3 + 8 = (8 - 3) - 2 n:
(8 - 3) - 2 n
8 - 3 = 5:
Answer: 5 - 2 n
Between what two integers on a number line would 8√ be plotted?
Answer:
81 and 49
Step-by-step explanation:
What is the equation for the line in slope-intercept form?
Enter your answer in the box.
Answer:
y= -2 + 4
Step-by-step explanation:
Answer: y = -2x - 4 is the actual answer
Step-by-step explanation: The other person is wrong i did that answer and it was wrong.
Using the above technique, find the equation of the line containing the points (-2,7) (4,-2)
Equation of a line = y = mx +b
m = slope = change in y over the change in x
b = y intercept:
m = (-2 - 7) / (4 - -2) = -9/6 = -3/2
Now you have y = -3/2x + b
Use one of the points, replace y and x and solve for b:
7 = -3/2(-2) + b
Simplify:
7 = 3 + b
Subtract 3 from both sides:
b= 4
The equation is y = -3/2x + 4
Step-by-step explanation:
Hey there!.
The equation of a st.line passing through points (-2,7) and (4,2) is;
[tex](y - y1) = \frac{y2 - y1}{x2 - x1} (x - x1)[/tex]
Put all values.
[tex](y - 7) = \frac{2 - 7}{4 + 2} (x + 2)[/tex]
Simplify it to get answer.
[tex](y - 7) = \frac{ - 5}{6} (x + 2)[/tex]
[tex]6(y - 7) = - 5(x + 2)[/tex]
[tex]6y - 42 = - 5x - 10[/tex]
[tex]5x + 6y - 42 + 10 = 0[/tex]
[tex]5x + 6y - 32 = 0[/tex]
Therefore the required equation is 5x+6y-32=0.
Hope it helps...
In parallelogram ABCD, the measure of angle A is 99 degrees. Explain why the
measure of adjacent angle B must be 81 degrees.
Answer:
The measure of angle B must be 81° because angles A and B are interior supplementary angles
Step-by-step explanation:
Let us revise the properties of a parallelogram
In any parallelogram:
Every two opposite sides are parallelEvery two opposite sides are equal in lengthEvery two opposite angles are equal in measureEvery to adjacent angles are interior supplementary anglesLet us solve our question
In parallelogram ABCD
∵ AD and BC are opposite sides
∴ AD // BC
∵ ∠A and ∠B are adjacent angles
→ That means ∠A and ∠B are interior supplementary angles
∴ ∠A and ∠B are supplementary angles
∵ The sum of the measures of the supplementary angles is 180°
∴ m∠A + m∠B = 180°
∵ m∠A = 99°
∴ 99° + m∠B = 180°
→ Subtract 99° from both sides
∴ 99° - 99° + m∠B = 180° - 99°
∴ m∠B = 81°
The measure of angle B must be 81° because angles A and B are interior supplementary angles
Lester started the day with $12 in his pocket he is saving for the new mop with the snazzy Pinstripes on Amazon Prime he works a job making $8 an hour the moped cost $268 write the equation that represents how many days letter needs to work to have $268
Answer:
32h (1 day and 8h )
Step-by-step explanation:
268-12=256
256:8= 32
32h
Answer:
8x+12= 268
Step-by-step explanation:
We know that Lester already has $12, so that would be: +12
Since he works for $8 an hour, x will represent each hour: 8x
*x will determine the number of hours, if you want days, then divide the amount of hours by 24.
9(6j + 1) + j Help ASAP
Answer: 55j+9
Step-by-step explanation: distribute 9 through the parentheses and you would get 54j+9+j collect the terms 55j+9 AND YOUR ANSWER IS 55J+9
−px+r=−8x−2 solve for x
Plx I need this ASAP
Answer:
x=[tex]\frac{2+r}{p-8\\}[/tex]
Step-by-step explanation:
Question 2 (20 points)
2
1
Joanna walked for 2 a mile on Tuesday. On Wednesday, she walked 5
miles. How far did she walk in all?
Blank 1:
EXTRA POINTS! PLEASE BE PRECISE!
Cheryl’s recipe for homemade pudding calls for 4 1/2 cups of water and 2 cups cream. She decides to scale the recipe to use all 3 2/3 cups of cream she has in her refrigerator. How much water should she use?
A. 8 1/4 cups
B. 8 1/10 cups
C. 6 1/6 cups
D. 4 1/2 cups
Tysm!
Answer:
a 8 1/4 c
Step-by-step explanation:
I converted to decimals first. 4.5 c water to 2 c cream. wants to use 3.66 cream. 3.66/2= 1.83. she is increasing cream by 1.83%, next multiply same % to water. 4.5 cups * 1.83 = 8.235 which is closest to 8.25= 8 1/4
a rectangular compound has the dimensions 6 m by 10 m a square carpet is laid in the centre of the compound.Thr carpet is 3 m by 3 m. find the part of the compound that is uncovered by the carpet
Answer:
the uncovered part is 3 by 7
Help me out please please
Answer:
B. y=3/2x+8
Step-by-step explanation:
To find the perpendicular line, you find the reciprocal or the slope, so the reciprocal of this slope is 3/2. B is the only answer with the correct slope
Answer:
B
Step-by-step explanation:
Easiest way to tell is by flipping the slope and changing the sign, so it goes from -2/3 to 3/2. The only answer with that slope is B
if m<1=27 degrees find the m<4
Answer:
Can you specifiy?
Step-by-step explanation:
96% of all air travel departs on time. If you are taking 3 flights in one day, what is the probability that all of them depart on time?
Answer: 0.884736
Step-by-step explanation:
Given: The proportion of all air travel departs on time: p= 0.96
Total flights : n= 3
Let x be the number of flights on time.
As there are two cases either flight on time or not, so it is a binomial case.
Binomial distribution formula: [tex]P(X=x)=\ ^nC_xp^x(1-p)^{n-x}[/tex]
The probability that all of them depart on time = [tex]P(X=3)=\ ^3C_3(0.96)^3(1-0.96)^0=(1)(0.96)^3=0.884736[/tex]
The probability that all of them depart on time = 0.884736
If a person walks 1/3 mile in 15 minutes, how far will that person walk in one hour? (ik im dumb dont need to say it.)
Answer:
1 and 1/3 miles in an hour
Step-by-step explanation:
thats slow, ive walked a mile in ten minutes, lol
Endpoint: (-8, -10), midpoint: (10,-7)
Answer:
(28,-4)
Step-by-step explanation:
HELP PLEASEEEE!!!!! [Easy]
Answer:
180
Step-by-step explanation:
solve for a. 1/3(21-3a)=6-a
Answer:
no solution
Step-by-step explanation:
Given
[tex]\frac{1}{3}[/tex] (21 - 3a) = 6 - a ( multiply through by 3 to clear the fraction )
21 - 3a = 18 - 3a ( subtract 21 from both sides )
- 3a = - 3 - 3a ( add 3a to both sides )
0 = - 3 ← not possible
This indicates the equation has no solution
Given g(x) = 3x + 8 , what is the value of g(− 4) ?
Answer:
- 4
Step-by-step explanation:
Step 1:
g ( x ) = 3x + 8 Function
Step 2:
g ( x ) = 3 ( - 4 ) + 8 Input x
Step 3:
g ( x ) = - 12 + 8 Multiply
Answer:
g ( x ) = - 4 Add
Hope This Helps :)
Answer:
g(-4) = -4
Step-by-step explanation:
So we are given the function g(x) = 3x + 8 and we are asked to find g(-4). To find g(-4), we would have to plug in -4 for x in the equation for g(x).
g(-4) = 3(-4) + 8 = -12 + 8 = -4
So g(-4) = -4.
I hope you find my answer and explanation to be helpful. Happy studying.
Really hard geometry problems. Please help!
Answer: For #3 the answer is 48 degrees, #4 is 70 degrees
Step-by-step explanation:
3. CGA and BGD are verticle angles which means they are congruent, and (2x-10)+(x+4)+(x+10) is 180. Which gives you X=44, then you substitute x into x+4 which gives you 48.
4. CEB and BED are supplementary which means they make up 180. BED and CEA are verticle angles which means they are congruent. We know CEB is 110 which means BED is 70 because 180-110=70. BED and CEA are verticle angles which means CEA is also 70 degrees
Answer:
i think #3 is 93 and #4 is 70
Step-by-step explanation:
a full circle is equal to 360
for #3, i used the equation (2x-10) + (x+4) + (x+10) = 360
combine all like terms and get 4x + 4 = 360
subtract 4 from both sides
4x + 4 = 360
4x = 356
divide 4 from both sides
x = 89. from here put 89 where x is . angle BGD and angle CGA are the same so 89 + 4 = 93
for #4, use the equation 45 + 3x - 19 = 110
combine like terms and get 26 + 3x = 110
subtract 26 from both sides and then divide by 3
3x = 84
x = 28
place 28 where x is and find the matching angle which is 70.
HOPE THIS HELPS!!
what is 100+100+56+88+90=
then divide all of the numbers
Answer:
86.8
Step-by-step explanation:
100+100+56+88+90
divide the answer by 5
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation: (
100+100=200
200+56=256
256+88=342
342+90=432
432/5= 86.4
Evaluate x3−y2 if x=2 and y=34
Answer:
- 62Step-by-step explanation:
Evaluate x3−y2 if x=2 and y=34
substitute x=2 and y=32 into the expression:
= x3 - y2
= (2)3 - (34)2
= 6 - 68
= -62
An expression is defined as a set of numbers, variables, and mathematical operations. The value of the expression x³−y², when x=2, y=34 is −1,148.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
Given the expression x³−y² and the value of the expression when x=2 and y=34 can be calculated by substituting the values in the expression. Therefore, the expression can be written as,
x³ − y²
Substitute the value of x and y in the expression,
= (2)³ − (34)²
Opening the bracket,
= 8 − 1,156
= −1,148
Hence, the value of the expression x³−y², when x=2, y=34 is −1,148.
Learn more about Expression here:
https://brainly.com/question/13947055
#SPJ2
WHAT IS 5 X 3 TO THE POWER OF 3
Answer:
The answer is 3,375
Step-by-step explanation:
5 x 3=15
15 to the 3rd power is 15 x 15 x 15
15 x 15 x 15= 3,375 :)
solve 2(x-2) = 3(x+2)-8
Answer:
x = -2
Step-by-step explanation:
2(x-2) = 3(x+2)-8
Multiply the 2 and 3 out to the numbers in the parentheses. Don't multiply the 3 out to the -8 because it is outside of the parentheses.
2x-4 = 3x+6-8
Combine the 6 and -8
2x-4 = 3x-2
Subtract 2x from both sides
-4 = x-2
Add 2 to both sides
-2=x
Please PLEASE help with these two math problems
1. 7^x ÷ 7^y =
2. z^10x^y ÷ z^5 =
Answer:
14
-25/1
Step-by-step explanation:
What is five times 3 and 3/4
Answer:
18.75
Step-by-step explanation:
I KNOW ITS RIGHT LOL HOPE THIS HELPED
Which number line represents the solution to the inequality 1 + 2x < -7?
Answer:
[tex]\boxed {x < -4}[/tex]
Step-by-step explanation:
Solve the following inequality:
[tex]1 + 2x < -7[/tex]
-Subtract [tex]1[/tex] to both sides:
[tex]1 - 1 + 2x < -7 - 1[/tex]
[tex]2x < -8[/tex]
-Divide both sides by [tex]2[/tex]:
[tex]\frac{2x}{2} < \frac{-8}{2}[/tex]
[tex]\boxed {x < -4}[/tex]
The number line:
(-15) - (-16) (i need 20 characters so hey)
Step-by-step explanation:
-15+16 (as - - = +)
1
it will be positive as 16 is greater then 15 and have positive charge
Answer:
1
Step-by-step explanation:
(-15)-(-16) =
(-15)+16 =
1
Help me !!!!!!!!!!!!!!!!
Answer:
c/9 >= 15
Step-by-step explanation:
c divided by 9 is greater than or equal to 15
how can i find all parts of this question?
