Step-by-step explanation:
When you divide both sides of an inequality by a positive number, the inequality sign remains the same. When you divide both sides of an inequality by a negative number, you must reverse the inequality sign.
For example:
8 > 2 is a true inequality.
Let's divide both sides by 2:
4 > 1 is also a true inequality. The inequality sign remained > since we divided by a positive number.
Now let's start again with
8 > 2, and divide both sides by -2.
-4 > -1 is false. When the inequality sign remains the same after dividing both sides by a negative number, the inequality is no longer true. To keep the inequality true, we must change the inequality sign when dividing both sides by a negative number.
8 > 2
Divide both sides by -1.
-4 < -1 is true.
I really need help with the bottom half only
4x - 2 (x-2) = -4 + 5x -13
Answer:
x = 7
Step-by-step explanation:
Given
4x - 2(x - 2) = - 4 + 5x - 13 ← distribute left side and simplify
4x - 2x + 4 = 5x - 17
2x + 4 = 5x - 17 ( subtract 5x from both sides )
- 3x + 4 = - 17 ( subtract 4 from both sides )
- 3x = - 21 ( divide both sides by - 3 )
x = 7
what is the equation in point-slope form of the line that passes through the point (-2,10) and has slope -4
Is √36 A rational or irrational number
Answer:
It is a rational number because the [tex]\sqrt{36}\\[/tex] is 6.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Rational
√36 = √(6²) = 6
Which is the correct definition of a function
Answer:
A function is a function that passes the vertical line test
Step-by-step explanation:
the vertical line test direction:
draw a line straight down you graph if it hits the x axis two time it not a function
A function is a function which passes the vertical line test.
What is a function?Function is a type of relation, that maps one input to specific single output.
In mathematics, a function is an expression, rule, or law that describes the relationship between one variable , the independent variable and the dependent variable. In mathematics and the sciences, functions are indispensable for formulating physical relationships.
A Linear function is defined as a function whose graph is a straight line
A a line straight down, graph if it hits the x-axis two times it not a function
A function that passes the vertical line test is known.
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yard
1
Rachel is making a bracelet and a necklace for her friend. She needs
3
5
of wire to make a bracelet and yard of wire to make a necklace. She
6
estimates that she will need about yards of wire.
9
Which best explains her estimate?
Question 1 (1 point)
The equation to find the percent of change is the difference divided by the original amount.
True
Or False
58.5 divided by 1 1/2
Answer:
the answer should be 39Step-by-step explanation:
oh my god someone just deleted my question when it was a positivity corner with motivational messaged smh!
Answer:
Whatttt that person is negative they need that positivity but yet they deleted that positivity corner with a motivational message. Sad
Jasmine took four 20 point quizzes in her math class. If her scores were 18, 15, 20, and 15, what was her mean quiz score?
(mean = average)
Which letter represents the sum of (4+3i) and (-1+i)?
1.) A
2.) B
3.) C
4.) D
Answer:
B
Step-by-step explanation:
The coordinate that represents the sum of the complex numbers is B , Option 2 is the write answer.
What are Complex Numbers ?Numbers which can be written in the form a+ib are called complex numbers , i denotes the iota , imaginary number and has the value of √-1 .
The complex numbers given are
(4+3i) and (-1+i)
The sum of complex numbers is
4 +3i -1 +i
3 + 4i
(3,4)
The coordinate that represents the sum of the complex numbers is B , Option 2 is the write answer.
To know more about Complex Numbers
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What is no-fault insurance?
a.
No-fault insurance provides full coverage for the entire car.
b.
No-fault insurance covers only damages that you did not cause.
c.
No-fault insurance is the default insurance that all drivers receive if they do not wish to purchase a special policy.
d.
No-fault insurance covers medical expenses incurred after an accident, regardless of which driver caused the crash.
Answer:
D No-fault insurance covers medical expenses incurred after an accident, regardless of which driver caused the crash.
Step-by-step explanation:
Edge
No-fault insurance pays for medical expenditures regardless of who was at fault.
Option d. is correct.
Define insurance.Insurance is a way of safeguarding against financial loss. It's a type of risk management that's generally utilized to protect against the danger of a speculative or unpredictable loss.
No-fault insurance pays for medical expenditures incurred as a result of an accident, regardless of who was at fault.
Option d. is correct.
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True or false? Jdkdjdjdjjddjds
Answer:
True
Step-by-step explanation:
To divide fractions, flip one of the fractions then multiply them together.
-1/10 ÷ -3/5 =
-1/10 ÷ -5/3=
-1/10 x -5/3 = 5/30
Because a negative times a negative is a positive the product/quotient is positive.
Giving brainliest to first correct answer!!
Two trapezoid-shaped tabletops are congruent to each other.
trapezoid FGHI = trapezoid WXYZ
Which side of trapezoid WXYZ must be congruent to GH?
A) XY
B) WX
C) YZ
D) WZ
Answer:
A.XY is the correct answer of this exercise
I need help pleaseeee
*******************************************************************************************
is {(1,9), (-3,4), (1, -7)} a function?
Solve the equation
6-x-x = 18
a: -6
b: 6
c: 9
d: -9
Answer:
x = -6
I hope this helps!
Identify the transformation(s):
Kelly has $5.38 in her account before receiving her $832.19
paycheck. She writes checks for rent and car insurance in
the amounts of $350.82 and $72.38. She also withdraws
$30. What is her current balance?
f(x) = 7x - 5 find f(x) when x = 5
Answer:
f(5) = 30
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Function notationStep-by-step explanation:
Step 1: Define
f(x) = 7x - 5
x = 5
Step 2: Evaluate
Substitute: f(5) = 7(5) - 5Multiply: f(5) = 35 - 5Subtract: f(5) = 30Sarah has $400 in a savings account at the beginning of the summer. She wants to have at least $100 in the account by the end of the summer. She withdraws $20 each week for fun. How many weeks can Sarah withdraw money from her account?
Answer:
15
Step-by-step explanation:
400 - 100 = 300
300 ÷ 20 = 15
Find the value for x. Round your answer to the nearest hundredth. Area of the triangle = 8 ft^2
Answer:
x = 3.51
Step-by-step explanation:
Since, formula to determine the area f a triangle is,
Area = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
8 = [tex]\frac{1}{2}(x + 1)(3x - 7)[/tex]
16 = x(3x - 7) + 1(3x - 7)
16 = 3x² - 7x + 3x - 7
16 = 3x² - 4x - 7
0 = 3x² - 4x - 23
3x²- 4x - 23 = 0
By quadratic formula,
x = [tex]\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}[/tex]
x = [tex]\frac{4\pm \sqrt{(-4)^{2}-4(3)(-23)}}{2(3)}[/tex]
x = [tex]\frac{4\pm \sqrt{292}}{6}[/tex]
x = [tex]\frac{4\pm 17.09}{6}[/tex]
x = 3.51, -2.18
But the length of sides can't be negative.
Therefore, x = 3.51 will be the answer.
Tema de jos Va rog frumos Dau coroana instant
Answer:
wow so much work you got it is 2 3 I can't understand ur writeing
Which of the following are exterior angles? Check all that apply. 3 2 A. 26 [ B. 24 C. 75
Answer:
E and A
Step-by-step explanation:
Solve for x
x(6x+1)= 2
Answer:
x=1/2,-2/3
Step-by-step explanation:
Answer:
- 1/2 I would show my work but its too long sry
Step-by-step explanation:
what’s the percent increase from 6.2 to 9.1?
Answer:
46.774194%
Step-by-step explanation:
6.2 → 100%
1 → (100/6.2)%
9.1 → ((100/6.2)x9.1)% = 146.774194%...
percentage increase = 146.774194% - 100% = 46.774194
Tenemos un rectángulo cuya área es (15n + 9nx) cm 2 y su base mide (3n) cm. Existe también un cuadrado con la misma altura del rectángulo, tal que si al área del cuadrado se le disminuye (9x 2 ) cm 2 , ésta medirá 1825 cm 2 . ¿Cuánto mide el área original del cuadrado?
Answer:
El área original del cuadrado es 34225 cm²
Step-by-step explanation:
Los parámetros dados son;
El área del rectángulo = (15·n + 9·n·x) cm²
La longitud de la base del rectángulo = (3·n) cm
La altura del cuadrado = La altura del rectángulo
El área original del cuadrado - 9·x² cm² = 1825 cm²
La altura del rectángulo = (El área del rectángulo) / (La longitud de la base del rectángulo)
∴ La altura del rectángulo = (15·n + 9·n·x) / (3·n) = 5 + 3·x
La altura del rectángulo = 5 + 3 · x = La altura del cuadrado
El área del cuadrado = Lado × Lado = Altura × Altura = (5 + 3·x) × (5 + 3·x)
∴ El área del cuadrado = (5 + 3·x) × (5 + 3·x) = 9·x² + 30·x + 25
Del área original del cuadrado - 9·x² cm² = 1825 cm², tenemos;
9·x² + 30·x + 25 - 9·x² = 1825
30·x + 25 = 1825
30·x = 1825 - 25 = 1800
x = 1800/30 = 60
x = 60
El área original del cuadrado - 9·x² cm² = 1825 cm²
El área original del cuadrado = 1825 cm² + 9·x² cm² = 1825 cm² + 9 × 60² cm² = 34225 cm²
El área original del cuadrado también se puede encontrar de la siguiente manera;
El área original del cuadrado = (5 + 3 × 60) × (5 + 3 × 60) = 34225 cm²
El área original del cuadrado = 34225 cm².
PLEASE HELP A college student has two different jobs. Her combined work schedules consist of no more than 48 hours in one week.
Which graph best represents the solution set for all possible combinations of the number of hours she worked at her first job, and y, the number of hours she worked at her
second job, in one week?
Answer
А
Answer:
B
Step-by-step explanation:
everything above 48 is shaded, she has no more than 48 hours
Only the first graph represents the given situation. The correct option is A.
Given:
A college student has two different jobs. Her combined work schedules consist of no more than 48 hours in one week.To find:
The graph that represents the solution set for all possible combinations of the number of hours she worked at her first job and the number of hours she worked at her second job, in one week.
Explanation:
Let [tex]x[/tex] be the number of hours she worked at her first job and [tex]y[/tex] be the number of hours she worked at her second job, in one week.
Her combined work schedules consist of less than or equal to 48 hours in one week. So,
[tex]x+y\leq 48[/tex]
The number of hours cannot be negative.
[tex]y\geq 0[/tex]
[tex]x\geq 0[/tex]
The related equation is [tex]x+y=48[/tex].
At [tex]x=0[/tex],
[tex]0+y=48[/tex]
[tex]y=48[/tex]
The y-intercept is [tex](0,48)[/tex].
At [tex]y=0[/tex],
[tex]x+0=48[/tex]
[tex]x=48[/tex]
The x-intercept is [tex](48,0)[/tex].
Check the inequality for [tex](0,0)[/tex].
[tex]0+0\leq 48[/tex]
[tex]0\leq 48[/tex]
The above statement is true. It means [tex](0,0)[/tex] is included in the shaded region.
Therefore, the correct option is A.
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who sings, THE KID FRANKIE.
Answer:
frankie
Step-by-step explanation:
Answer:
wiz khalifa
Step-by-step explanation:
yeah
Eli needs pieces of ribbon cut into strips that are 2 1/2 feet long. The roll of ribbon is 7 1/2 feet long. Which expression could be one of the steps in determining how many strips can be cut?
Hi there! 2 ½ is equivalent to 2.5 and 7 ½ is equivalent to 7.5. An expression that can be used to find out how many strips can be cut is this:
2.5x = 7.5
This is because the length of the ribbon needed to be cut is 2.5 ft long and we are looking for how many of that length could be cut out of a roll of ribbon that is 7.5ft long. All you have to do for this is divide both sides by 2.5 to isolate the variable. 7.5/2.5 is 3. x = 3. Eli can cut 3 strips of 2½ ft long ribbon.
