Answer:
Option DStep-by-step explanation:
A. An equation is an identity if it can be rewritten as 0=0. Such an equation has only one solution, 0, and that is the identity of the variable.
Incorrect. In this case there are infinite solutions.B. An equation is an identity if it can be rewritten as an equation of the form "variablenumber," such as x5 or y3. Such an equation has only one solution, and the solution is called the identity of the variable.
Incorrect. There might be more than one solution and the equation is not an identity.C. An equation is an identity if it can be rewritten as an equation of the form "variablenumber," such as x5 or y3. Such an equation has an infinite number of solutions because a variable can be any number.
Incorrect. There might be one or no solution and the equation is not an identity.D. An equation is an identity if it can be rewritten as 0=0. Such an equation has an infinite number of solutions because it reduces to a true statement regardless of the value of the variable.
Correct|2s-7| is bigger than or equal to -1
The inequality expression of the statement is |2s - 7| >= -1
What are inequality expressions?Inequality expressions are mathematical statements that are represented by variables, coefficients and operators where the opposite sides are not equal
How to represent the statement as an expression?The mathematical statement is given as
|2s - 7| is bigger than or equal to -1
The term "bigger than or equal" means greater than or equal to
In mathematics, the term greater than or equal to is represented as >=
So, we have the representation of the mathematical statement to be
|2s - 7| >= -1
From the question, we are not instructed to simplify the expression
This means that we leave the expression |2s - 7| >= -1 unsimplified
Hence, the mathematical statement as an expression is |2s - 7| >= -1
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3. Owen’s parents were planning a big birthday party for him. (a) His parents spent $1.75 on each of 6 goodie bags. How much did they spend on goodie bags? Show your work. (b) They spent $130 to rent a bounce house for 8 hours. How much is the hourly rate for the rental? Show your work. (c) If the parents spent a total of $182.53 on the party, how much more did they spend than what was spent in parts (a) and (b)? Show your work.
Answer:
Step-by-step explanation:
(a) 2.49 * 6 = 14.94 <== what they spent on goodie bags
(b) 150 for 8 hrs = 150/8 = 18.75 per hr
(c) 182.53 - (150 + 14.94) = 182.53 - 164.94 = 17.59...they spent 17.59
Drag and drop the equation to correctly complete the sentence.
The equation of the line that passes through the points (2, -7) and (5, -1) is
????
Answer:
y= 2x - 11
Step-by-step explanation:
(-7 +1 )/ (2-5) = 2
y= 2x +b
-1 = 2* 5 + b
solve for b and you get -11 so the equation of the line is :
y = 2x -11
a visitor to the grand canyon hiked the south kaibab trail and the river treauk on one day.the next day she hiked bright angel
South kaibab. 10.1
River 2.7
Bright angel 12.6
North kaibab 22.9
Answer:
Step-by-step explanation
The first step, u have add 10.1 + 2.7 = 12.8 .
Then, u add 12.8 - 12.6 = 00.2.
After that u add 10.1 + 2.7 + 12.6 + 22.9 = 48.3.
If u want u can also add 10.1 + 2.7 + 12.6 to show the total without the North Kailbab Trail added.
Hope this helps
Help me with math, please.20 points.
So there this question sayed if drove 110 mile and used 5 gallon of gas and if he plan to drive 236 mile , how many gallon of gas would Bryce need
Answer:
10.72 gallons.
Step-by-step explanation:
Divide 236 by 110.
You should get 2.1454.
Multiply 2.1454 by 5 gallons of gas.
PLEASE MARK BRAINLIEST
Answer:
12
Step-by-step explanation:
Mary has saved $20.50 in the past 3 weeks. At this rate, how much will she save in 18 weeks?
Answer: $123
Step-by-step explanation:
$20.50/3 (weeks) = 6.83333333333
$6.83333333333 x 18 (weeks) = $123
Answer:
Step-by-step explanation:
18 weeks = 6 * 3
= 6 * 20.5
= $ 123
i need help!!!!!!!!!!!!!
Answer: 21+4x=39+3x
$93 for 18 pages
Step-by-step explanation:
both of the costs will = each other so you make an equation where they are equal and x= 18 so just plug that in for the number of pages. and you get 93=93
whats 9 + 10 (i wanna see some REAL answers)
9+10=19
Step-by-step explanation:
whats 9 + 10 it's 19
please help me please
Answer:
1st Q: C. Algebraic Expression; it consists of numbers and a variable.
2nd Q: D. The number of times Chris washes the car.
Step-by-step explanation:
1st Question:
Numerical Expression: Contains numbers and operations. Numerical expressions are your typical 2 + 2 equations. The ones you start learning in Kindergarten with just numbers and different operations such as addition, subtraction, division, and multiplication.
EX: 108 - 24 = ?
? = 84
Algebraic Expression: Contains numbers, operations, and variables. They are the same as normal, numerical expressions with the exception that it also has letters, or variables.
EX: 2x + 3 = 7
x = 2
__________________________________
2nd Question:
Amount Chris earns per wash: $10.00
# of times Chris washes the car: x
So 10x means what...?
10 = earns per wash
x = times washed the car
Multiply 10 by x to find the total Chris earns for the number of times he washes the car, x.
(Just as a reference, this would be counted as an Algebraic Expression).
Hope this helps! :)
(Lmk if you don't understand the explanation for the 2nd Q)
A painter earns $15 per hour. What is the minimum number of hours he must work to earn at least $200? Write an inequality to represent this situation and solve. Show your work.
PLEASE DO STEP BY STEP BECAUSE IT NEEDS ME TO SHOW MY WORK!
BEST ANSWER GETS BRAINLIEST! :) TYSM I NEED ANSWER ASAP
Answer:
200<=15x
divide by 15
You have to work at least 13 1/3 hours to earn $200
<= means greater than or equal to
Step-by-step explanation:
The minimum number of hours to earn at least $200 is 14
How to determine the minimum number of hours?Let the number of hours be x.
Given that hourly rate is $15, and he needs to earn at least $200;
The inequality of the scenario is:
15x >= 200
Divide both sides by 200
x >= 13.33
The smallest integer greater than 13.33 is 14.
So, we have:
x = 14
Hence, the minimum number of hours is 14
Read more about inequality at:
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the temperature last year in winter was 36.6 degrees, and then dropped to 33.4 degrees. What was the difference? PLEASE SHOW YOUR WORK
Answer: 3.2
Step-by-step explanation:
36.6 - 33.4 = 3.2 so that would be the difference
let the graph of g be horizontal shrink by the factor of 2/3 followed by a translation 5 units left and 2 units down of the graph of f (x) =x ^ 2
1. horizontal shrink by factor of 2/3 means multiply outside the f(x) or outside the x^2 by 2/3:
(2/3)•f(x)
2. translation left 5 units means "x+5" inside:
(2/3) • f(x+5)
3. tranlate down 2 units means "-2" outside:
(2/3) • f(x+5) -2
or (2/3) (x+5)^2 - 2
[tex]\frac{2}{3}\cdot f(x+5)-2[/tex] or [tex]\frac{2}{3}\cdot (x+5)^2-2[/tex]
What is 24.0 times 1/4
Answer:
6
Step-by-step explanation:
I feel close
Well, maybe I'm not, heaven knows
It's a spotlight stuck on the ceiling
Why are these the things that I'm feeling?
There's so much time
For me to speak up, but I keep quiet
I'll complicate the most of the mantra
The power is out and I can't turn the fan on
So can I call you tonight?
I'm trying to make up my mind
Just how I feel
Could you tell me what's real?
I hear your voice on the phone
Now I'm no longer alone
Just how I feel
Could you tell me what's real anymore?
'Cause I wouldn't know
If (x+2,5)=(3y+2)find x and y
Answer:
X = 7
Step-by-step explanation:
because of you do 5+2 = 7 then you minus 3 which you get 4.
the. if you have a production of around 10 you will get 7.
or you can do.
3+2 which is 5 and then you multiply that by 2 which is 10 and then you comprised that number therefore you will get 6 but you have to find X so we youndelie (think that's how u spell it) X which will equal to 1 and 6+1 is 7. once you get it it's quite simple
Solve: 3t-2/4 - 2t+3/3 = 2/3 - t
The ages of Sara and Samia are in the ratio 3: 5. Six years from now the ratio of
their ages will be 2:3.Find their present ages.
5/6 x 15
please! This is due by 6!
Answer:
12.5 Hope it helps =D Have a wonderful Day!
Step-by-step explanation:
Solve the inequality for z.
11 ≤z - 9
Answer:
z [tex]\geq[/tex] 20
Step-by-step explanation:
we start with the inequality 11 ≤ z - 9. Simplifying gives 20 ≤ z, so z [tex]\geq[/tex] 20
Charles claim that (3,-3) is the solution and Destiny claim that the solution is (-1,5) . Who is correct and why ?
Answer:
Both are correct because both equations are the same rendering infinite answers on the line. Both points fall on the line.
Step-by-step explanation:
First, convert to y=mx+b format.
6x+3y=9 is the same as y=-2x+3
Graph your lines then plot your points
Hope that helps
PLEAS HELP I WILL MARK BRAINLIEST
In order for the data in the table to represent a linear function with a rate of change of +5, what must be the value of a?
a = 3
a = 8
a = 18
a = 33
Answer:
18
Step-by-step explanation:
if it adds 5 then 13+5=18
Answer:
a = 18
Step-by-step explanation:
We know from the table that our function must be y = 5x -2. We get this information by plugging in 13 = 5(3) - b and solving for b. Now that we have our function we plug in 4.
y = 5(4) -2
y = 20 - 2
y = 18
Please help
it’s like 11:30 and this is due at 11:59
Answer:
The last option: x > -2 and x < 5
Step-by-step explanation:
First of all we look at the circles at the end.
Both are open circles, which indicates that -2 and 5 are not included.
Reading left to right, x is greater than -2 (remember, not greater than or equal to)
And x is less than 5 (not including 5)
The compound inequality is x > -2 and x < 5
We can see that the first option is similar, but it says or not and
-Chetan K
6(a-5)
Help!
How to do expansion questions ?
Answer:
distribution? if it doing that
Step-by-step explanation:
6a - 30
Answer:
6a - 30
Step-by-step explanation:
6 × a = 6a
6 × (-5) = -30
6a - 30
This past Sunday, the Giants scored 9 points less than twice the Cowboys. The Packers scored 14 more points than the Giants. If the teams scored 81 total points, find the number of points scored by the packers
Answer:
43 points
Step-by-step explanation:
let the score of cowboys is x
and giants make score 9 which is twice less than the cowboys score so
giants score will be = 2x -9
and packers scored 14 more than giants that is (2x - 9) + 14
now sum of their scores is equal to 81 it means:
x + (2x - 9) + (2x -9) + 14 = 81
x + 2x - 9 + 2x - 9 + 14 = 81
5x = 81 + 4
5x = 85
x = 17
packers scored = (2x - 9) + 14
= 2 (17) -9 + 14
=38 + 5 = 43 points
help please this is timed i’m not sure if my answer is correct
(it’s abt perpendicular, parallel and skew lines)
Answer:
Perpendicular
Step-by-step explanation:
Both lines intersect and form a right angle when they intersected each other. Non co-planar means essentially means "on different planes", but both lines do lie on the same plane. Parallel lines don't intersect at all! However lines a and d are intersecting. Skewed means neither parallel nor perpendicular (meaning they intersect and don't form a right angle).
Answer:
It would be perpendicular.
Step-by-step explanation:
Perpendicular lines form a 90-degree angle.
Skew lines are on different planes and do not intersect.
Since A and D intersect with a 90-degree angle they're perpendicular.
Mal got a prepaid debit card with $30 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was 19
cents per yard. If after that purchase there was $26.77 left on the card, how many yards of ribbon did Mal buy?
Answer:
17 yards
Step-by-step explanation:
Make up this problem yourself 3 divided by 1/2
Answer:
3 : (1/2) =[tex]\frac{6}{1} =6[/tex]
Step-by-step explanation:
Divide: 3 : [tex]\frac{1}{2} =\frac{3}{1} *\frac{2}{1} =\frac{3 * 2}{1*1} =\frac{6}{1} =6[/tex]
Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of [tex]\frac{1}{2}[/tex] is [tex]\frac{2}{1}[/tex]) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators.
In words - three divided by one half = six.
The area of a curved surface of a cylinder is 4400cm² and the circumference of its base 110cm. Find the height of the cylinder.
Step-by-step explanation:
Area of a curved surface of a cylinder = 4400 cm².
The circumference of its base = 110 cm.
As we know that,
Formula of : circumference of base = 2πr.
→ 2πr = 110.
→ πr = 55.
Formula of : Curved surface area of cylinder = 2πrh.
→ 2πrh = 4400.
Put the value of πr = 55 in the equation, we get.
→ 2(55)h = 4400.
→ 110h = 4400.
→ h = 40 cm.
Height of cylinder = 40 cm.
Nishi invests £2800 at 4%
interest per year.
Work out how much she will
have altogether after:
3 years,
5 years,
6 years
And
9 years
Answer:
2800 x (1.04)³= 3149.6192
2800 x (1.04)⁵ = 3406.628127
2800 x (1.04)⁶ = 3542.893252
2800 x (1.04)⁹ = 3985.273075
Step-by-step explanation:
NEED THIS ASAP PLEASE HELP
Find the measure of the missing angle.
Answer:
42 + 90 + X = 180
X = 180 - 132 = 48