5x^2+2x-3=0 by factorisation method
Answer:
x = - 1, 0.6
Step-by-step explanation:
[tex]5 {x}^{2} + 2x - 3 = 0 \\ \\ 5 {x}^{2} + 5x - 3x - 3 = 0 \\ \\ 5x(x + 1) - 3(x + 1) = 0 \\ \\ (x + 1)(5x - 3) = 0 \\ \\ x + 1 = 0 \: \: or \: 5x - 3 = 0 \\ \\ x = - 1 \: \: or \: \: x = \frac{3}{5} \\ \\ x = - 1 \: \: or \: \: x = 0.6 \\ \\ x = - 1, \: \: 0.6[/tex]
Answer:
X= -1 or X=3/5
Step-by-step explanation:
5x^2+2x-3=0
(x+1)(5x-3)=0
x= -1 or 5x/5=3/5
x=3/5
A restkaurant worker is able to clean 32 dishes in 8 minutes. How many minutes would it take to clean 58 dishes?
Answer:
14.5
Step-by-step explanation:
Find the unit rate
PLEASE HELPpppppppppppppppp
Answer: 140%
Step-by-step explanation:
Cost of the coats = $45 each
Selling price of the coat = $63 each
The percent of the purchase price that is the sales price would be:
= 63/45 × 100
= 7/5 × 100
= 140%
Therefore, the answer is 140%.
A company loses $5,400 as the result of a manufacturing defect. Each of the 8 owners have agreed to contribute an equal amount, x, to help pay for the losses.
Part A
Which expression shows the total loss after the owners contribute some money?
Answer:
x=$5400:8
$5400:8x = total loss after the owners contribution
The expression shows the total loss after the owners contribute some money is 8x = 5400
Equation
An equation is an expression used to show the relationship between two or more numbers and variables.
Let x represent the amount contributed by each owner as loss.
Since there are 8 owners sharing a loss of $5400, hence:
8x = 5400
x = 675
The expression shows the total loss after the owners contribute some money is 8x = 5400
Find out more on equation at: https://brainly.com/question/13763238
Help me please. I need helpppppoooooopppppopopppp
Answer:
0
Step-by-step explanation:
The minimum number of cavities a patient had was 0 cavities.
Answer:
0
Step-by-step explanation:
The smallest number that indicates cavity is '0' therefore it is the minimum number of cavities
PLS HELP THIS IS TIMED
Kyle is making a frame for a rectangular piece of art. The length of the frame is 3 times the width, as shown below.
A rectangle with a length of 3 x and height of x.
If Kyle uses 18 feet of wood to make the frame, what is the length of the frame?
Answer:
D
Step-by-step explanation:
Answer:D
Step-by-step explanation: got it right
How can you best describe how to determine if a sequence is arithmetic or geometric?
 Can someone pleaseeee help if you’re correct I’ll give u brainlist
Answer:
p=65
Step-by-step explanation:
180-50=130
130/2=65
What is the answer to it?
Answer:
The answer is
[tex] - 6x + 17[/tex]
what would be the slope of (1,-2) and (3,0)
Answer:
1
Step-by-step explanation:
Hello :)
So to answer this problem, we can use the rise over run formula.
The rise is the difference of any two y values.
The run is the difference of the x values from the same two y values.
This question gives us 1,-2 and 3,0
We can use them for the formula:
-2 - 0 divided by 1 - 3
-2/-2 = 1
Answer:
[tex]m=1[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (1, -2)
Point (3, 0)
Step 2: Find slope m
Substitute [Slope Formula]: [tex]m=\frac{0+2}{3-1}[/tex]Evaluate Addition/Subtraction: [tex]m=\frac{2}{2}[/tex]Evaluate Division: [tex]m=1[/tex]There are 20 sweets in a box.
x of the sweets are red.
The rest of the sweets are yellow.
Tom takes at random a sweet from the box.
Write down an expression, in terms of x, for the probability that Tom takes a yellow sweet.
Answer:
[tex]probability \: of \: getting \: red \: sweets = \frac{x}{20} \\ probability \: of \: getting \: yellow \: sweets \: = \frac{(20 - x)}{20} [/tex]
The probability of getting red sweets is x/20 and the probability of getting yellow sweet is (20-x)/20.
What is a probability?Probability is about estimating or calculating how likely or 'probable' something is to happen.
Given that x is the number of red sweets.
The total number of sweets is 20.
The number of yellow sweets = 20 - x.
The probability of getting a red sweet is given by
P(x) = x/20
The probability of getting a yellow sweet is given by
P(20-x) = (20-x)/20
Hence, x/20 is the probability of getting a red sweet and (20-x)/20 is the probability of getting yellow sweet.
To learn more about probability, use the link given below:
https://brainly.com/question/11234923
#SPJ2
What time is it exactly 1,440,000 minutes after 10 pm
Answer:
The answer is 11 PM
Step-by-step explanation:
1,440,000 minutes is the same as 24,000 hours. Then, you add that to 10pm of that day and you get 11 pm. It is the same as multiplying 24 x 1000 hrs. it is like adding 1000 days to that since it is 24 hrs in one day. Hope this helped!!
Answer:
11:00 pm
Step-by-step explanation:
1,440,000 minutes, convert it into hours and you get 24,000 hours. Since 24 hours equal a day 24,000 is 1,000 days. Attach 10:00 pm since its exactly 1,000 days after and you get 11:00 pm.
Choose the number sentence whose product is 5.85.
A. 1.7 x 3.5
B. 26 x 2.25
C. 4.5 x 2.3
D. 1.3 x 4.5
Answer:
D
1.3 times 4.5 is 5.85
Answer:
D
Step-by-step explanation:
BRAINLYEST please
I have a half-full bottle of water and it has more than 8 ounces in it. What would be the expression
Answer:
The equivalent expression is [tex]\frac{1}{2}\cdot V_{max} > 8\,oz[/tex].
Step-by-step explanation:
The best approach consists in translating the sentence given in the question into mathematical terms until an expression is complete:
(i) I have a half-full bottle of water
Translation: I use a bottle with a maximum volume capacity [tex]V_{max}[/tex], measured in ounces, a half of it is full of water:
[tex]\frac{1}{2}\cdot V_{max}[/tex]
(ii) And it has more than 8 ounces in it
Translation: The volume occupied by the water is greater than 8 ounces. Hence, we get the following inequation:
[tex]\frac{1}{2}\cdot V_{max} > 8\,oz[/tex]
How come nobody answers my questions? Like wth, I'm stuck but everyone else is getting their questions answered left and right.
Answer:
That is a good question and it might be your question you are trying to find the answer and maybe your question looks hard
Hope this help :)
Step-by-step explanation:
Is -4 a integer yes or no
Answer:
Yes
Step-by-step explanation:
A integer is any number that's not a fraction.
Answer:
yes
Step-by-step explanation:
integer are numbers that aren't a fraction
In the worlds coolest freezer sodium gas was cool to temperature of 78.5 below zero and then called 194.65 more what was the new temperature of the sodium gas
Answer:
[tex]-273.15^{\circ}\text{C}[/tex]
Step-by-step explanation:
[tex]T_i[/tex] = Initial temperature of sodium gas = [tex]-78.5^{\circ}\text{C}[/tex]
[tex]\Delta T[/tex] = Change in temperature of sodium gas = [tex]-194.65^{\circ}\text{C}[/tex]
[tex]T_f[/tex] = Final temperature of sodium gas
Change in temperature of gas is given by
[tex]\Delta T=T_f-T_i\\\Rightarrow T_f=\Delta T+T_i\\\Rightarrow T_f=-194.65+(-78.5)\\\Rightarrow \Delta T=-273.15^{\circ}\text{C}[/tex]
The new temperature of sodium gas is [tex]-273.15^{\circ}\text{C}[/tex].
What is the area of the building below? *
When 17 is divided by K ; where k is a positive integer less than 17 the remainder is 3 .What is the remainder when the sum of the beta possible values of Kivided by 17.
Answer:
The remainder is 4.
Step-by-step explanation:
Note: This question is not correctly stated. It is therefore correctly restated before answering the question as follows:
When 17 is divided by k; where k is a positive integer less than 17, the remainder is 3. What is the remainder when the sum of the possible values of k is divided by 17?
The explanation of the answer is now given as follows:
Since k < 17, it implies that the possible values of k must be from between 1 and 16 inclusive.
Between 1 and 16, only 7 or 14 will give a remainder of 3 when either of them is used to divide 17. Therefore, 7 and 14 are the possible values of k.
Therefore, we have:
Sum of the possible values of k = 7 + 14 = 21
Also, we have:
Sum of the possible values of k divided by 17 = 21 / 17 = 1 with a remainder of 4.
Therefore, the remainder is 4 when the sum of the possible values of k is divided by 17.
A cube has a side length of 6 cm. What is the volume of the cube, in cubic centimeters
Answer:
V=216cm³
Step-by-step explanation:
V=216cm³
Find the slope of the line
that goes through the given
points
t
(1,2) (3,-4)
I
1
Answer:
Step-by-step explanation:
y2-y1=
x2-x1
2--4=6(negatives cancel out)
3-1=2
so 6/2 =3
3 is slope
What is the length of AC?
A. Square root of 2
B. Square root of 5
C. 3
D. 5
Answer:
B. √5 units
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point A (-3, 2)
Point C (-1, 3)
Step 2: Find distance d
Substitute [DF]: [tex]d = \sqrt{(-1+3)^2+(3-2)^2}[/tex]Add/Subtract: [tex]d = \sqrt{(2)^2+(1)^2}[/tex]Exponents: [tex]d = \sqrt{4+1}[/tex]Add: [tex]d = \sqrt{5}[/tex]9. Determine which of the following sequences is a geometric sequence. Check all that apply.
3,9, 27, 81, ...
100, 90, 80, 70, ...
5, 10, 20, 40, ...
2, 10, 18, 26,...
625, 125, 25, 5, ...
-2, 6, -18, 54, ...
Step-by-step explanation:
first geometric sequence
3^1, 3^2 ,3^3, 3^4,......
3, 9, 27, 81.......
second
5^1, 5^2, 5^3, 5^4,........
5, 25, 125, 625,........
third
2, 10, 18, 26,.....
which has the difference of 8
fourth
100, 90, 80, 70,......
If y = 80 when x = 32, find x when y = 100.
Answer:
when y=80 the value of x is 32 and when y=100 what is the value of x so Criss cross 80=32
and 100= x so the answer will be 32*100 divided by 80 is equal to 40 I guess it's 40 the value of x is 40 in my guess
Need help with question
What is the solution to the equation -6x + 9 – 4x = 14?
[tex] - 6x + 9 - 4x = 14 \\ - 6x - 4x = 14 - 9 \\ - 10x = 5 \\ x = \frac{5}{ - 10} \\ x = - \frac{1}{2} \\ x = - 0.5[/tex]
can you help me please?
Answer:
it is a it the first one. 7/13
Answer:
A.
Step-by-step explanation:
The bottom number is the same so leave then and just add the top.
Makes 7/13
You decide to market your own custom computer software. You must invest $3,255 for computer hardware, and spend $2.90 to buy and package each disk. If each program sells for $13.75, write a system of equations and determine how many disks you must sell to break even.
Answer:
13.75x = 3,255 + 2.90x
Step-by-step explanation:
Given that,
Amount invested on computer hardware = $3,255
Amount invested to buy and package each disk = $2.90
Selling price for each program = $13.75
We need to find the equation that is used to find how many disks you must sell to break even. Let there are n disks that you must sell.
ATQ,
$3,255 is a fixed amount. $2.90 and $13.75 depends on x.
So,
13.75x = 3,255 + 2.90x
We can solve the above equation to find the no. of disks.
13.75x - 2.90x = 3255
10.85x = 3255
x = 300
Hence, you must sell 300 disks to break even.
A friend purchases items from a website and resells them on her own website. She typically marks up her merchandise 40%. If she purchased an item for 15$, what price should she set for the item?
Answer:
$21
Step-by-step explanation:
Step one:
given
she purchased an item for $15
marks up her merchandise 40%.
let us find 40% of $15
and add the answer to the initial price of the item
Step two:
40/100*15
=0.4*15
=$6
Hence the price should she set for the item is
=15+6
=$21