Answer:
Step-by-step explanation:
x^2 - 4x - 5 = 0
(x - 5)(x + 1) = 0
x - 5 = 0
x = 5
x + 1 = 0
x = -1
We want to find the roots of a quadratic equation, to do that, we will use the Bhaskara's formula.
For an equation like a*x^2 + b*x + c = 0
The solutions are given by:
[tex]x = \frac{-b \pm \sqrt{b^2 - 4*a*c} }{2*a}[/tex]
Using that formula we will get that the solutions in ascending order are -1 and 5.
Now let's see how to get that:
We have expression: x^2 - 4x = 5
We can rewrite this as:
x^2 - 4x - 5 = 0
Now we can use the Bhaskara's formula to get:
[tex]x = \frac{-(-4) \pm \sqrt{(-4)^2 - 4*1*(-5)} }{2*1} = \frac{4 \pm6}{2*1}[/tex]
Then the two solutions are:
x = (4 + 6)/2 = 5
x = (4 - 6)/2 = -1
Then the solutions in ascending order are -1 and 5.
If you want to learn more, you can read:
https://brainly.com/question/23033812
what is -0.5 repeating(5 in the tens place is repeating) as a fraction?
Answer:
-1/2
Step-by-step explanation:
How many solutions does the following equation have ?
-42 – 7 + 10x = -7 + 6x
Pls help and explain
The equation -42 - 7 + 10x = -7 + 6x has one solution x = 10.5.
What is the equation?The equation is defined as a mathematical statement that has a minimum of two terms containing variables or numbers that are equal.
The equation is given in the question, as follows:
-42 - 7 + 10x = -7 + 6x
Combine like terms in the equation,
-49 + 10x = -7 + 6x
Add 49 to both sides,
10x = 42 + 6x
Subtract 6x from both sides,
4x = 42
Divided both sides by 4 into the equation, and we get
x = 10.5
Thus, the equation has one solution x = 10.5.
Learn more about the equations here:
brainly.com/question/10413253
#SPJ2
Is 0.819 meters greater than 0.85 meters and why
Answer:
mo
Step-by-step explanation:
.819 to .850
.85 is bigger
Answer:
no
Step-by-step explanation:
No because .85 meters is .031 meters greater then .819
For the dilation with center (0,0) shown on the graph, your friend says the scale factor is 5/2 . What is the correct scale factor? What mistake did your friend likely make?
Correct answer i know is 2/5, what did the friend do though? here are the choices
A.
Your friend found the ratio between non-corresponding sides.
B.
Your friend found the ratio between two sides of the image triangle.
C.
Your friend found the scale factor that enlarges to triangle abc to triangle a'b'c'
D.
Your friend found the ratio between two sides of the original triangle.
Answer:
i think its b
Step-by-step explanation: if its wrong im sorry its been a while sense i did this
What is the solution set for -4x + 10 2 5x + 55?
O A. x 25
o
B. X 245
O C. XS-5
O D. XS -45
Find the quotient of 1 1/5 and 3 4/5
Answer:
0.2 and 0.8
Step-by-step explanation:
Rewrite 47/9 as a mixed number in lowest terms
Answer: As an improper fraction. (numerator larger than denominator): 47/9 = 47/9
As a mixed number (mixed fraction) (a whole number and a proper fraction, of the same sign): 47/9 = 5 2/9
As a decimal number: 47/9 ≈ 5.222222222222 ≈ 5.22.
As a percentage: 47/9 ≈ 522.22%
sorry for putting so much-
(please help I will give brainlist) Twenty students tried out for the basketball team. Sever were selected. What is the ratio of students selected to those trying out?
Answer:
7:20
Step-by-step explanation:
35% of the students made the team
Answer:
7:20
Step-by-step explanation:
hope this helps :)
Which is equivalent to the following expression?
4(9m + 3) + 9 - 2(3m)
a. 16m + 9
b. 30m + 21
c. 30m + 9
d. 42m +21
30m +21
4(9m + 3) + 9 - 2(3m), distribute the numbers into the parenthesis 36m+12+9-6m, combine like terms 30m + 21Answer:
[tex] \huge{ \bold{ \boxed{ \text{30m + 21}}}}[/tex]
Step-by-step explanation:
[tex] \text{4(9m + 3) + 9 - 2(3m) }[/tex]
[tex] \text{Step \: 1} : \text{Distribute \: 4 \: through \: the \: parentheses}[/tex]
➵ [tex] \text{36m + 12 + 9 - 2(3m)}[/tex]
[tex] \text{Step \: 2} : \text{Multiply \: 2 \: by \: 3m}[/tex]
➵ [tex] \text{36m + 12 + 9 - 6m}[/tex]
[tex] \text{Step \: 3 : \: Combine \: like \: terms}[/tex]
[tex] \text{Like \: terms \: are \: those \: which \: have \: the \: same \: base.}[/tex]
➵ [tex] \text{36m - 6m + 12 + 9}[/tex]
➵ [tex] \text{30m \: + 12 + 9}[/tex]
[tex] \text{Step \: 4 : Add \: the \: numbers}[/tex]
➵ [tex] \text{30m \: + \: 21}[/tex]
[tex] \sf{Hope \: I \: helped}[/tex]!
[tex] \sf{Best \: regards}[/tex] !
~TheAnimeGirl
You have a piece of paper, 10cm by 10cm. The
area is 100 cm2. For some reason, you need a
square piece of paper with an area of 50 cm2.
Using the paper you have, what's
an easy way of getting the new
square?
What will be the length of
each side of the new square?
What will be the new perimeter?
what is 5.6 rounded to the nearest tenth
Answer:
it would be 5.60
Step-by-step explanation:
5.60 is the answer
the question is in the picture
i will give u brainliest
Answer:
11.6404467268 ——> 11.64
Step-by-step explanation:
Since ur only in hs, there are no steps for this. Simply press the square root button on ur calculator and voila! Thx for the brainliest :)
Which one of the following equations is equivalent to 3x-12 = -9?
A 3 - 5 = -6
B 70 - 3=4
2x = 4
D 2+3 = 2 - 1
the answer choices don't make sense but I can help u with solving the equation it's x = 1
3x-12=-9 , minus 12 on both sides3x = 3 , divide 3 on both sides x = 1now that u know this go through your answer choices and solve their equation and see which one produces x = 1 and that'll be the answer!!
What is the range of the relation
(3,3)
(0,2)
(0,-3)
(-1,-2)
(2,-3)
(2,-4)
If a cube has a side length of 5 inches, what would be the volume of that
cube?
2 points
*
Answer:
125 inches^3
Step-by-step explanation:
To solve for cubes it is L^3 or Length Cubed. Whcih is simply L×L×L where L is Length.
HELP AGAIN PLS
THX BRAIN
Answer:
last 3 are right
Step-by-step explanation:
Answer:
Answer option 2, 3 and 4.
There are 5 monkeys and 1 tiger which one is smarter?
Answer:M O N K E
Step-by-step explanation:because monke smort
Answer: Monkeys!
Step-by-step explanation: Monkeys are sometimes smarter than humans! There is also 5 of them
Can anyone help please ??
Answer:
-0.2
Step-by-step explanation:
Answer:
-0.2
Step-by-step explanation:
i will give u brainliest
Answer: 0.14
Step-by-step explanation:
fourteen nundredths = 0.14
Answer:
is it 1400, 1000+400, or fourtenths hundreds srry if its not helpful im just confused but i tried T^T
What two whole numbers is the quotient between 17÷2
A. 3 and 4
B. 6 and 7
C. 8 and 7
D. 15 and 16
Answer:
Step-by-step explanation:
C
Because 17 divided by two is 8.5
6+9=69 ok so this is simple beacause you take six then add nine with it to get 69
Jenny works in a picture framing shop. She has a function f(x) equals X +2 that find the size of a square frame, given a picture of side length X in inches. She has a function p(x) equals 3X that gives the price in dollars for the frame. What is the single function that Jenny can use to give a customer a price for a picture with an edge length of X
Given:
The function for size of a square frame is
[tex]f(x)=x+2[/tex]
where, x is the side length of the picture.
The function for the price in dollars for the frame is
[tex]p(x)=3x[/tex]
To find:
The single function for the price of a picture with an edge length of x.
Solution:
We know that, for a picture with an edge length of x.
Size of a square frame = f(x)
Price in dollars for the frame = p(x)
Single function for the price of a picture with an edge length of x is
[tex](p\circ f)(x)=p(f(x))[/tex]
[tex](p\circ f)(x)=p(x+2)[/tex] [tex][\because f(x)=x+2][/tex]
[tex](p\circ f)(x)=3(x+2)[/tex] [tex][\because p(x)=3x][/tex]
Let the name of this function is c(x). So,
[tex]c(x)=3(x+2)[/tex]
Therefore, the required function is [tex]c(x)=3(x+2)[/tex].
Richard had his car repaired at a body shop.
The parts cost $100.
The technician charged $52 per hour.
. His total bill was $308.
How many hours did the technician work on Richard's car?
Answer:
5.9 hours
Step-by-step explanation:
1. X/5 + 6 <2*
A.X> 20
B.X-20
C.x<-20
D.x<20
Answer:
C. x←-20
Step-by-step explanation:
2-6=-4-4•5=-20what is -4x+6y=21 on the graph
Answer:
Step-by-step explanation:
26 less than three times a number is -32 find the number
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Suppose a number is :
[tex]x[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Three times of it means :
[tex]3x[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
26 less than above means :
[tex]3x - 26[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Equals - 32 :
[tex]3x - 26 = - 32[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Find the that number ;
x asked thus we need to solve the above equation for x.
Let's do it....
[tex]3x - 26 = - 32[/tex]
Add sides 26
[tex]3x - 26 + 26 = - 32 + 26[/tex]
[tex]3x = - 6[/tex]
Divide sides by 3
[tex] \frac{3}{3} x = \frac{ - 6}{3} \\ [/tex]
[tex]x = - 2[/tex]
Done...
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
if I got 15 credits in i need 24 to graduate how many more i need
Step-by-step explanation:
I would have 9 to graduate
Answer: 9 credits
Step-by-step explanation:
24 - 15 = 9
WILL GIVE YOU BRAINLIST
find the slop
-4 1
-1 - 4
2 -9
5 -14
8 -19
Answer:
Step-by-step explanation:
The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .Teachers use different words for the y-coordinates and the the x-coordinates . Some call the y-coordinates the rise and the x-coordinates the run . Others prefer to use Δ notation and call the y-coordinates Δ , and the x-coordinates the Δ .These words all mean the same thing, which is that the y values are on the top of the formula (numerator) and the x values are on the bottom of the formula (denominator)!The slope of a line going through the point (1, 2) and the point (4, 3) is 13. Remember: difference in the y values goes in the numerator of formula, and the difference in the x values goes in denominator of the formula.Can either point be (1,1) ? There is only one way to know! First, we will use point (1, 2) as 1,1, and as you can see : the slope is: 13 . Now let's use point (4, 3) as 1,1, and as you can see , the slope simplifies to the same value: 13point (4, 3) as (1,1) =2−12−1=3−24−1=13 point (1, 2) as (1,1) =2−12−1=2−31−4=−1−3=13 Answer: It does not matter which point you put first. You can start with (4, 3) or with (1, 2) and, either way, you end with the exact same number! 1/3
Example 2 of the Slope of A line The slope of a line through the points (3, 4) and (5, 1) is −32 because every time that the line goes down by 3(the change in y or the rise) the line moves to the right (the run) by 2.This is because any vertical line has a Δ or "run" of zero. Whenever zero is the denominator of the fraction in this case of the fraction representing the slope of a line, the fraction is undefined. The picture below shows a vertical line (x = 1). vertical line The slope of a horizontal line is zero This is because any horizontal line has a Δ or "rise" of zero. Therefore, regardless of what the run is (provided its' not also zero!), the fraction representing slope has a zero in its numerator. Therefore, the slope must evaluate to zero. Below is a picture of a horizontal line -- you can see that it does not have any 'rise' to it.
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 30 hours and the median is 26.2 hours. Twenty-four of the families in the sample turned on the television for 15 hours or less for the week. The 11th percentile of the data is 15 hours. Step 4 of 5 : What is the value of the 50th percentile?
Answer:
26.2 hours
Step-by-step explanation:
From the given information:
The objective is to determine the value of the 50th percentile.
The median is the 50th percentile, which categorically divides the data into two equal parts. It is a number separating the higher half of a data sample from the lower half. This implies that the median stands in place for the 50th percentile of the data.
Thus, the 50th percentile value is 26.2 hours
2x?=9.6 plz halp the hammer head i will hammer the fence for you
Answer:
x=4.8 :)
Step-by-step explanation:
9.6/2=4.8