Answers
Answer:
2t
Step-by-step explanation:
The expressions are not the same because different terms are negative. We can visualize the difference by rewriting the expressions as 13t + (-2t) and (-13t) + 2t. In the first expression, 13t-2t, the 2t is negative because it is being subtracted, and subtracting a number is the same as adding a negative.
Related Questions
The area covered by a topic lie plant triples every year. By what factors does the are covered by the plant increase every month?
Answers
Answer:
16.67%
Step-by-step explanation:
If area triples every year :
This means that :
With an initial area of 10;
Area at the end of the year = 3 * 10 = 30
Percentage increase per year :
(30 - 10) / 10 * 100%
(20 / 10) * 100%
2 * 100%
= 200% per year
Therefore, monthly increase %
Yearly % increase ÷ number of months in a year
200% ÷ 12
= 16.666666%
= 16.67%
A seventh-grade student wants to read at least 300 pages of a novel this week. He has already read 55 pages. An inequality that represents this situation is 7x+55≥300.
Solve this inequality for x, the number of pager per day.
Identify a number of pages that the student could read per day in order to have at least 300 pages of the novel read in a week.
Explain how you know that your answer is appropriate.
Enter your answer and your work or explanation in the space provided.
Answers
Answer:
x=35
Step-by-step explanation:
7x+55≥300
-55 -55
--------------------
7x≥245
now divide both sides by 7
x=35
Sin (61) = 24/ x
find x plz show work
Answers
Answer:
x=27.44
Step-by-step explanation:
sin(61)=24/x
x*sin(61)=24
x=24/sin(61)
x=27.44
If using the method of completing the square to solve the quadratic equation
x²-10x – 15 = 0, which number would have to be added to "complete the
square"?
Answers
Answer:
For quadratic equations that cannot be solved by factorising, we use a method which can solve ALL quadratic equations called completing the square. We use this later when studying circles in plane analytic geometry.
Completing the square comes from considering the special formulas that we met in Square of a sum and square of a difference earlier:
(x + y)2 = x2 + 2xy + y2 (Square of a sum)
(x − y)2 = x2 − 2xy + y2 (Square of a difference)
To find the roots of a quadratic equation in the form:
\displaystyle{a}{x}^{2}+{b}{x}+{c}={0}ax
2
+bx+c=0,
follow these steps:
(i) If a does not equal \displaystyle{1}1, divide each side by a (so that the coefficient of the x2 is \displaystyle{1}1).
(ii) Rewrite the equation with the constant term on the right side.
(iii) Complete the square by adding the square of one-half of the coefficient of x to both sides.
(iv) Write the left side as a square and simplify the right side.
(v) Equate and solve.
Example 1
Find the roots of x2 + 10x − 4 = 0 using completing the square method.
Answer
Example 2
Solve 4x2 + x = 3 by completing the square.
Answer
Exercises
Solve the following quadratic equations by completing the square
Q1. \displaystyle{2}{s}^{2}+{5}{s}={3}2s
2
+5s=3Answer
Q2. \displaystyle{3}{x}^{2}={3}-{4}{x}3x
2
=3−4xAnswer
Q3. \displaystyle{9}{v}^{2}-{6}{v}-{2}={0}9v
2
−6v−2=0Answer
Q4. \displaystyle{a}{x}^{2}+{b}{x}+{c}={0}ax
2
+bx+c=0Answer
1. Solving Quadratic Equations by Factoring
3. The Quadratic Formula
x² -10x = 15
x² - 10x + 25 = 15 + 25
(x-5)² = 40
x = -2√(10) + 5
x = 2√(10) + 5
What is the slope of the line that passes through the points (-2,-1) and (2,-3) answer in simplest form
Answers
Answer:
Step-by-step explanation:
(-3 + 1)/(2 + 2)= -2/4= -1/2 is the slope
Caraline wants to compare the expression's -15-9 and 9-(-15) to determine which result is greater.How cab she do this without finding the value of rach difference? Explain your reasoning.
Answers
Answer:
9-(-15)
Step-by-step explanation:
because it would be changed to 9+15
5(x+2) = 20
15 points
Answers
Answer:
Step-by-step explanation:
remove the parenthesis
5x+10=20
5x+10-10=20-10
5x=10
x=2
What expression is equivalent to 1/3 x -1/5
Answers
Mr.Rodriguez has 1/2 cake left from his buthday party. He wants to share it among 4 people What fraction represents how much of the cake each of the 4 people will get
Answers
Answer:
Step-by-step explanation:
There is 1/2 cake left, or .5, or 50%.
.5 divided by 4 equals .125, or 1/8, of 12.5%
In fraction form, each person will receive 1/8 slice of cake.
Hope this helps!
Mark Brainliest plz!
Name the like terms
5a, 3, 4d , 2a, 2a, 5c
Answers
Answer:
"Like terms" are terms whose variables (and their exponents such as the 2 in x2) are the same. In other words, terms that are "like" each other. Note: the coefficients (the numbers you multiply by, such as "5" in 5x) can be different.
Step-by-step explanation: Hope this helps
please help me this is my test for the review of all the math i learned
Answers
Answer:
16.752
Step-by-step explanation:
Determine a quadratic equation in standard form that has each pair of roots.
X=5±√2/3
Answers
Step-by-step explanation:
you have to add 5 and 2 which is 7 and decide by 3 or estimate
solve for x. -3(x+5)=-9
Answers
Answer:
x = -2
Step-by-step explanation:
Find the GCF of ( x ^2 + 2 ) and ( 3x ^2 + 6 ).
Hint: First factor each binomial, then find the common factor.
Answers
Answer:
The GCF is 4
Explain:
I REALLY NEED THIS ANSWER ASAP !!!
Find the measure of ZP
A) 39
B) 80°
C) 85
D)90°
Answers
Answer:
hope this helps..........
Chose whether the fraction and percent are equivalent
Yes. No.
A.
40/1,000 and 40%
B.
6/5 and 120%
C.
50/33 and 117%
D.
1/8 and 12.5%
Answers
Step-by-step explanation:
A No because it's 4%
B Yes
C No
D Yes
On a coordinate plane, a point is at (1, 2) and (5, 2). Find the distance between (1, 2) and (5, 2). The points lie in the same quadrant . The distance is .
Answers
Answer:
The points lie in
✔ the same quadrant
The distance is
✔ 4 units
Step-by-step explanation:
the same quadrant
4 units
The distance between the two points (1, 2) and (5, 2) is 4 units. And both the points (1, 2) and (5, 2) lie in the same quadrant.
What is Distance between the two points?Distance between two points is the length of the line segment that connects two given points.
Formula for the distance between two points[tex]d = \sqrt{(x_{2}-x_{1} ^{2}) +(y_{2}-y_{1} ) ^{2} }[/tex]
According to the given question
We have
Two points
(1, 2) and (5, 2)
Let,
[tex](x_{1},y_{1}) = (1, 2)[/tex]
And, [tex](x_{2},y_{2} ) = (5,2)[/tex]
Therefore,
The distance between the points (1,2) and (5, 2)
= [tex]\sqrt{(5-1)^{2} +(2-2)^{2} }[/tex]
[tex]=\sqrt{(4)^{2}+0 }[/tex]
[tex]=4[/tex] unit.
Hence, the distance between the two points (1, 2) and (5, 2) is 4 units.
Since, the x coordinate and y coordinate of both the points (1,2) and (5, 2) are positive. Therefore, they both lie in the first quadrant. Hence, the points lie in the same quadrant.
Learn more about distance between the two points here:
https://brainly.com/question/18296211
#SPJ2
Please help me -5x-3y=16 y=x
Answers
Answer:
the answer is x=2 and y=2
Step-by-step explanation:
-3y=16+5x
-y=(16+5x)3
what is the centimeters per hour. PICTURE. I REALLY NEED HELP
Answers
Answer:
1 Centimeter per Hour: 1 Centimeter per hour is approximately equal to 2.777 778 x 10-6 meters per second (SI unit).
Step-by-step explanation:
1 Centimeter per Hour: 1 Centimeter per hour is approximately equal to 2.777 778 x 10-6 meters per second (SI unit).
1. The following triangle has an area of 15.75 cm". What is the value of 2? 7 cm 4.5 cm 3.75 cm 1.125 cm 2.25 cm
Answers
Triangle QRS has the angle measures shown.
m∠Q = (1x)°
m∠R = (3x)°
m∠S = (6x)°
The measure of the obtuse angle equals
(108°.)... :)
FOR 15 POINTS ANSWER THESE 3 QUESTIONS AND WILL MARK BRAINLIEST. 1. The courthouse is on the exterior corner of the intersection of any 2 streets. 2. The school and the courthouse are on congruent corresponding angles. 3.The police station forms a linear pair with the courthouse and same-side interior angles with the school.
Answers
Answer:
http://collinskarr.weebly.com/uploads/5/7/7/6/57764943/geometrytaskprojectparallellinescityprojectandwritingassignment.pdf
Step-by-step explanation:
i think thes is a life hack thing
i am not a inappropriate robot
45x^4 + 72x^3 is factored form
Answers
Answer: 9 x 3 ( 5 x + 8 )
Step-by-step explanation:
Factor 9 x 3 out of 45 x 4 + 72x 3 .
Jada has a stand in the marketplace where she sells ground cumin. Her weekly expenses are $300, and she sells her cumin at a fixed price per kilogram. If she sells 120 kilograms of cumin, her weekly net profit is $600.
Answers
Answer:
Step-by-step explanation:
The net profit of the marketplace is the difference between the revenue and the expenses. The revenue is the product of number of kilograms sold and the price per kilogram.
Profit = Revenue - Expenses
600 = 120x - 300
The value of x from the equation is 7.5. The answer therefore for the first question is $7.5. Then, the number of kilogram of cumin she needs to sell to cover the expenses is $300/$7.5 and that is equal to 40.
Inverse of f(n)=-2n^3-3
Answers
help brainliest if right
Answers
Answer:
y = 1x + 7
Step-by-step explanation:
The equation formula for this scenario is y = mx + b
m = slope
b = y-intercept
To find the slope, pick two points. I picked (2,9) and (4,11).
Subtract 11 from 9, you'll get 2.
Subtract 4 from 2, you'll get 2.
2/2 equals 1. The slope (m) = 1
To find the b, y-intercept, plot the points on a graph and see if the linear line across the y-intercept. For this case, the y-intercept is 7.
The equation is: y = 1x + 7
Help me please answer thanks
Answers
Answer:
all of them are right, there's no wrong answer.
Step-by-step explanation:
all answers are x = 20,
A right triangle has an angle that measures 47°. What is the measurement of the third angle in the triangle?
Answers
Answer:
43 degrees
Step-by-step explanation:
every triangle all three angles equal 180 for a right triangle you know that one angle is 90 degrees for this triangle we know that another angle is 47 so
90+47 = 137 now we can take 180 - 137 = 43
so your third angle is 43
hope I helped!!
There are sixteen girls and twelve boys in block 7 math. At that rate, how many
girls would you expect in a group with two hundred ten boys?
Answers
Answer:280
Step-by-step explanation:
If the main group is a ratio of girls to boys 16:12 and the 12 is increased to 210 then do 210/12=17.5 and multiply the 17.5 by 16 to get 280
f(x)= 10x find the inverse of the function
Answers
Solve 11=h-14 please
Answers
Answer:
25
Step-by-step explanation:
25-14=11
Answer:
25
Step-by-step explanation:
11=25-14
Since 11+14 is 25 then h in 11=h-14 must be 25
