Answer:
-2.6
Step-by-step explanation:
[tex] - 3 + \frac{ - 2}{ - 5} \\ = - 3 + \frac{2}{5} \\ = - 3 + 0.4 \\ = - 2.6[/tex]
Which of these systems of linear equations has no solution?
A
y = 3x + 8
y = 3x + 16
B
y = 3x + 16
y = 6x + 16
C
y = 3x + 8
y = 6x + 16
D
y = 3x + 8
y = 8x + 16
hurry please
Answer:
A is correct
Step-by-step explanation:
A has no solution because since the slopes are the same, setting both equations equal to each other will cancel out the slopes and result in 8=16, meaning no solution will make both sides equal to each other.
B does have a solution because of different slopes
C does have a solution because of different slopes
D does have a solution because of different slopes
Write a quadratic function whose zeros are 12 and 2 .
Answer:
The quadratic function is: [tex](x-2)(x-12)=0[/tex] and can be written as: [tex]x^2-14x+24=0[/tex]
Step-by-step explanation:
A quadratic function can typically be written in multiple forms, among which includes: (x-a)*(x-b)=0 where a, b can be any number
This quadratic function is solved for a and b, which represents the zeroes (or can be called roots) of the equation.
Given that the zeroes are already given, all that's need to write the quadratic function is to substitute a and b with the given zeroes:
Note: It doesn't matter which zeroes are substituted for a and b
(x-a)*(x-b)=0
(x-2)*(x-12)=0
Now, we can leave it in this form or expand the equation (often called the FOIL method):
(x-2)*(x-12)=0 Multiply each term with the other terms
[tex]x^2-2x-12x+24=0[/tex] Simplify by combining like terms
[tex]x^2-14x+24=0[/tex]
Thus, the quadratic function for zeroes 12 and 2 is: [tex]x^2-14x+24=0[/tex]
BRAIN!!!!PLEASE HELP THIS IS MY LAST QUESTION OF THE DAY!!
Answer:
Attached file
Step-by-step explanation:
The equation for continuous compounding is [tex]A=A_oe^k^t[/tex]
where [tex]A[/tex] is the final amount, [tex]A_o=[/tex] the initial amount, [tex]k=[/tex] the interest rate, and [tex]t =[/tex] how much time is affecting it.
The equation for compound interest is [tex]A=A_o(1+\frac{r}{n} )^n^t[/tex]
where [tex]A=[/tex] the final amount, [tex]A_o=[/tex] the initial amount, [tex]r=[/tex] the interest rate, [tex]n =[/tex] the number of times the interest is applied per period (usually per year), [tex]t =[/tex] how many time periods elapsed (usually how many years the interest is applied).
Therefore you must set up all the equations with their respective units. If something is decaying, it will have a negative rate or a rate < 1. If something is growing, it will have a positive rate or a rate > 1.
PLEASE HELP
Which of the following prime numbers is not a factor of the integer 330?
(1) 11
(3) 3
(2) 7
(4) 5
Answer:
3 not sure if you saw it Amazing the following statements best describes the role of yourself and God bless you and take care for you guys to paperwork
Answer:
its 7
Step-by-step explanation:
Steve gets paid $50 a week plus $5 for each item he sells. He wants to know how many items he needs to sell, x, to make at least $220 in one
week
Select all the inequalities that represent the situation
HELLPPPPP
Answer:
Steve needs to sell 34 items.
Step-by-step explanation:
S= 5x+50
220=5x+50
-50 -50
170= 5x
/5 /5
34 = x
Check:
220= 5(34)+50
220=170+50
220=220
The numerator of the given fraction is 4 less than the denominator. If 5 is added to both numerator and denominator, the resulting fraction is equivalent to 5/7 . What is the original fraction? heeeeeeelp!!!
Answer:
5/9
Step-by-step explanation:
Let the denominator be k and thus numerator be 4 less than k or k - 4.
Fraction = (k - 4)/k
If 5 is added to both:
=> (k-4 + 5)/(k + 5) = 5/7
=> 7(k + 1) = 5(k + 5)
=> 7k + 7 = 5k + 25
=> 2k = 18
=> k = 9
Thus,
Fraction is (k-4)/k = (9-4)/9 = 5/9
Solve for the values of z
z(z-6)=0
Answer:
D. z=6
Step-by-step explanation:
Find the measurement of Arc VW
Answer:
vw equals 48 or w equals 24 and v equals 24
Step-by-step explanation:
4x − 5 + x = 3 + 2x + 4 what is the value of x?
Answer:
x=4
Step-by-step explanation:
4x-5+x=3+2x+4
5x-5=7+2x
5x-2x=7+5
3x=12
x=4
Electric current flowing through wire produces heat that
varies jointly as the resistance of the wire and the square of
the current. The resistance of two wires are in the ratio
2:3. What current passing through the second wire will
produce the same amount of heat as a current of 6 amperes
through the first wire?
Plz help me to solve this question.
This is of Profit loss and simple interest.
Answer is Rs 20 each.
I want full process.
I will mark you brainlist if you write the full process.
A shopkeeper bought 1000 glass tumblers. 100 of them were broken and he sold the remaining tumblers at Rs21 each. If he made a loss of 5.5 %, at what purchase each glass tumblers
Step-by-step explanation:
here is your answer bro..just use the formula and keep the value
the area of a rectangle is the same as the area of a square of side 12cm .if the rectangle is 16 long find its width.
Answer:
width = 9 cm
Step-by-step explanation:
the area of a 12cm square is 144
16w = 144
x = 9
Solve for x. Reduce any fractions to lowest terms. Don't round your answer, and don't use mixed fractions. 54x+64 49x + 59
Answer:
x=-1
Step-by-step explanation:
54x+64=49x+59
subtract 64
54x=49x-5
subtract 49x
5x=-5
divide by 5
x=-1
Jordan fills several bags with oranges. This line plot shows the weight of each bag.
How many more pounds does one of the heaviest bags weigh than one of the lightest bags?
Enter your answer as a fraction in simplest form by filling in the boxes.
lb
Answer:
2 1/2
Step-by-step explanation:
The heaviest bag weighs 4 pounds, and the lightest bag weighs 1 1/2.
4 can be converted to 8/2 and 1 1/2 can be converted to 3/2.
8/2-3/2=5/2.
5/2 converts to 2 and 1/2 or 2.5
The heaviest bags weigh than one of the lightest bags by 2.5 pounds.
What is fraction?A number expressed as a quotient, in which a numerator is divided by a denominator.
The heaviest bag weighs 4 pounds,
and the lightest one weighs 3/2 pounds
The difference between the heaviest and lightest one is:
= 4-3/2
= 8/2-3/2
=5/2 pounds
= 2.5 pounds
Learn more about fractions here:
https://brainly.com/question/10354322
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5. In 2 concentric circles, the inner radius is 2 cm and the outer radius is 4 cm.
What is the area between the two circles? (Use
[tex]\pi \\ [/tex]
= 3.14)
Step-by-step explanation:
The area of circle with radius 4cm is,
area of circle = π r *r = 3.14 * 4 * 4
= approx 50.27
The area of circle with radius 2cm is,
area of circle = π * r * r = 3.14 * 2 * 2
= approx 12.57
The circles are concentric means they have a common Centre, so,
Area between the two circles = area of bigger circle - area of smaller circle
= 50.27 - 12.57
= 37. 7 sq. cm
Plz helppppppp. Spam accounts will be taken down.
Answer:
Step-by-step explanation:
Does anyone understand this?
Answer:
88
Step-by-step explanation:
11*4 = 44
4*4 = 16
11-4 = 7
7*4 = 28
44+16+28 = 88
Which operation would you use to solve for x in the equation 3x = 15?
O Addition
O Division
O Squaring
O Subtraction
Answer:
division
Step-by-step explanation:
you need to get the x by its self because right now x is being multiplied by 3 tou divide it out
Answer:
Division
Step-by-step explanation:
you will divide both sides by 3..“the number that is disturbing x”
Indicate (✓/×)
1)Every whole number is a rational number.
2)There are some fraction that are not rational number.
3)every negative rational number lies to the right of zero on the number line.
4) zero is not a rational number.
5)every interger is a rational number.
Step-by-step explanation:
1)Every whole number is a rational number.√
2)There are some fraction that are not rational number.√
3)every negative rational number lies to the right of zero on the number line.×
4) zero is not a rational number.×
5)every interger is a rational number.√
Fill in the blank with the equation of the line shown for each representation below (y = mx + b). **Pay attention to the scale on the x and y axes!
Answer:
y= 2x + 4
Step-by-step explanation:
2x-1/3+3=x-3/5
pls do make sure to answer this *only if you know*
thank you
Answer:
[tex] x = - 3 \frac{4}{15}[/tex]
Step-by-step explanation:
[tex]2x - \frac{1}{3} + 3 = x - \frac{3}{5} [/tex]
[tex] = > 2x - \frac{ 1 +9 }{3} = x - \frac{3}{5} [/tex]
[tex] = > 2x + \frac{8}{3} = x - \frac{3}{5} [/tex]
[tex] = > 2x - x = - \frac{3}{5} - \frac{8}{3} [/tex]
[tex] = > x = - \frac{9 - 40}{15} [/tex]
[tex] = > x = - \frac{49}{15} [/tex]
[tex] = > x = - 3 \frac{4}{15} (ans)[/tex]
Answer:
x = - [tex]\frac{49}{15}[/tex]
Step-by-step explanation:
Given
2x - [tex]\frac{1}{3}[/tex] + 3 = x - [tex]\frac{3}{5}[/tex]
Multiply through by 15 ( the LCM of 3 and 5 ) to clear the fractions
30x - 5 + 45 = 15x - 9 , that is
30x + 40 = 15x - 9 ( subtract 15x from both sides )
15x + 40 = - 9 ( subtract 40 from both sides )
15x = - 49 ( divide both sides by 15 )
x = - [tex]\frac{49}{15}[/tex]
I NEED HELP!!
I'll give you 50 points and a brainlist if you figure this out, all you have to do is to Solve the following multi-step equation, and write it out and describe it
Answer:
-9x=12/-9
Step-by-step explanation:
-4(x+6)=5x+12
-4x-24=5x+12
-9x=12
x=12/-9
Answer:
x=-4
Step-by-step explanation:
-4(x+6)=5x+12
-4x-24=5x+12
-24-12=5x+4x
9x=-36
x=-36/9=-4
HELPPPPPPPPPPPPPPPPPPPPPPP PLEASE HELP IMMA FAIL
the sum of 54 and 4 times a number is 21, find the number please helppp
Answer:
- 8.25
Explanation:
let the unknown number be represented by x.
54 + 4x = 21
(subtract 54 from both sides)
4x = - 33
(divide both sides by 4)
x = - 8.25
i hope this helps! :D
The cost and customer rating of 13 televisions is shown on the scatterplot. The televisions are rated on a scale of 0 to 10.
Scatterplot with x axis labeled Television Price going from 0 to 1,400 and y axis labeled Rating going from 0 to 12. Values at 61, 1; 185, 3; 221, 10; 291, 2; 462, 4; 666, 5; 686, 4; 730, 5; 862, 7; 997, 10; 1,055, 9; 1,077, 8; 1,263, 7.
Part A: Describe the association shown in the scatterplot. (4 points).
Part B: Give an example of a data point that affects the appropriateness of using a linear regression model to fit all the data. Explain. (4 points)
Part C: Give an example of a television that is cost effective and rated highly by customers. (2 points)
There is the positive association shown in the scatter plot and the television number 3 is cost-effective and rated highly by customers.
What is scatter plot?
Scatter plot is the plot of graph in which the values of two variables plotted using their coordinates on the graph.
The average rate of change is the ratio of change in y values to the change in x values of the scatter plot.
The cost and customer rating of 13 televisions is shown on the scatter plot. The televisions are rated on a scale of 0 to 10.
Television Price (x) Rating (y) 1; 185, 3; 221, 10; 291, 2; 462, 4; 666, 5; 686, 4; 730, 5; 862, 7; 997, 10; 1,055, 9; 1,077, 8; 1,263, 7.61, Part A: Describe the association shown in the scatter plot.Here, the price and rating is increasing together in the scatter plot. Thus, there is a positive association.
Part B: Give an example of a data point that affects the appropriateness of using a linear regression model to fit all the data.Here, the television number 3 has the high rate with low price. This affect the appropriateness of using a linear regression model to fit all the data.
Part C: Give an example of a television that is cost-effective and rated highly by customers.The television number 3 which is rated at 10 but the cost of it has just $221. Thus, the television number 3 is cost-effective and rated highly by customers.
Thus, there is the positive association shown in the scatter plot and the television number 3 is cost-effective and rated highly by customers.
Learn more about the scatter plot here;
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Answer:
Answer above is correct
Step-by-step explanation:
Just be careful not to put it word for word especially with the values as to not get caught by the plagiarism system :D
On Monday, Franco borrowed 15$ from his friend.Tuesday, Franco borrowed 12$ more from his friend. Franco plans to pay his friend back $18 on Wednesday. What will Franco’s balance be on Wednesday?
Answer:
He stills owes 9 dollars.
Step-by-step explanation:
-12+-15= -27. -27- 18= 9 .
reposttttttt
Calculate the volume of a prism with a length of 7/8ft, width 2/3 ft and height 1/2 ft. BE SURE TO EXPLAIN ALL STEPS
Answer:
14/48 Feet
Step-by-step explanation:
First, you multiply 7/8x2/3 which equals 14/24, which makes the base of the prisim 14/24 feet. Then you need to multiply 14/24 ( the base) by 1/2 (the height). 14/24x1/2= 14/48.
The final answer is 14/48.
Find the area of triangle ABC and the area of XYZ. AABC - AXYZ.
Answer:
ABC= 60 XYZ=540
Step-by-step explanation:
The area of a triangle is 1/2*base*height so for ABC we need to find the height first. To do this we use pythag theorem, and create the equation 13^2=5^2+height^2 rearranging this we can figure out that sqrt(height)=13^2-5^2. For the base we do 2*5 since there are two congruent line segments both equal to 5. Using this we can do 1/2*12*10=area of ABC
For XYZ we can do 1/2*30*36=area of XYZ, we can do 2*15 since there are 2 congruent 15 length line segments at the base.
QUESTION BELOW PLS HELP
its a no
...............................................................
What is the probability of people choosing ice cream or soda? Write your answer as a decimal. 30points Only if you get it right
Answer 50% or .5 there are 2 things