(x+2) (x+1)=0
kindly help me with this question
I found the following answer x=0 and x=-1
Answer:
[tex]x=\begin{bmatrix}-2\\-1\\\end{bmatrix}[/tex]
Step-by-step explanation:
(x+2) (x+1)=0
Isolate the X
=> [tex]\left(x+2\right)\left(x+1\right)=0[/tex]
Divide both sides by the coefficient:
=>[tex]x=\begin{bmatrix}-2\\-1\\\end{bmatrix}[/tex]
How much would you pay for 14.2 gallons of gas that cost $2.08 per gallon?
Answer:
$28
Step-by-step explanation:
Is this a fair or biased sample.
A store owner wants to survey customers about the products he sells. He programs the computer to select 100 customers from the mailing list and sends them each a survey.
(I'm torn on this one because on one hand, he's only selecting customers from his mailing list which makes me think biased, on the other he is using the computer to randomly select them so that seems fair. Also, of the people who are sent the surveys, everyone may not apply. So I'm leaning towards biased.)
Answer:
biased
Step-by-step explanation:
even with the computer randomly picking people, they are still all on the mailing list.
Help me please!!!!!!
Answer:
it will take them 12 weeks
Step-by-step explanation:
First, you add the amount of money Lena and Alexis are making each week: $5+$3= $8
Then you divide $96 by the $8: 96/8=12
Therefore, your answer is 12 weeks
~~hope this helped!!~~ :)
Alvin is 15 years younger than Elga. The sum of their ages is 45. What is Elga's age?
Answer:
Elga is 30 and Alvin is 15
Step-by-step explanation:
45-15=30
30-15=15
30+15=45
Answer:
[tex]\huge\boxed{\text{Alvin = 15, Elga = 30}}[/tex]
Step-by-step explanation:
In order to find Alvin and Elgas age, we can use a system of equations.
Let us assume that [tex]a[/tex] represents Alvin's age and [tex]e[/tex] represents Elgas age.
We can create two equations:
[tex]a = e-15[/tex]
[tex]a+e=45[/tex]
We can now use substitution to find each value. Let's substitute [tex]a = e-15[/tex] into [tex]a+e=45[/tex] as a.
[tex](e - 15) + e = 45[/tex]
We can now simplify this equation and solve for e.
[tex]2e-15 = 45\\2e = 60\\e = 30[/tex]
So we know that Elga is 30 years old. To find Alvin's age, we can substitute the value of e (30) back into one of the equations. Let's do it for [tex]a+e=45[/tex].
[tex]a + 30 = 45\\a = 45-30\\a=15[/tex]
So Elga is 30 years old and Alvin is 15 years old.
Hope this helped!
Read the following question
Answer:
G. Water skiing > Cycling
Step-by-step explanation:
You burn more calories in water skiing
Someone please help me real quick
Answer:
1/4
Step-by-step explanation:
circle a has center of (-2, 1) and a radius of 3 and circle b has a center of (4, 6) and a radius of 9 which of the following will help show that circle a is similar to circle b?
1. Reflect circle A over the x axis
2. Dilate circle A by a scale factor of 13
3. Translate circle A using the rule (x-6, y-5)
4. Rotate circle A 90° clockwise about the origin
Answer: The answer is #2
Step-by-step explanation:
Let me know if this helps
Rewrite the equation by completing the square 3+x=x^2+3x
Answer:
the completed square is x=1, -3
Does anyone have hard questions concerning arithmetic or geometric sequences?
Answer:
Nope
Step-by-step explanation:
Nope
Distribute the exponents 2x+1=8(x+5)+-2
Answer:x=-37/6
Step-by-step explanation:
742,617 to the nearest ten tousand
Answer:
740,000
Step-by-step explanation:
The ten-thousands digit is the 4.
Change all digits to the right of the 4 to 0.
742,617 becomes 740,000.
Since the first digit to the right of the 4 is 2, and not a digit from 5 through 9, we keep the 4 and do not change it to 5.
Answer: 740,000
Answer:
the answer is 740000
Step-by-step explanation:
because I have big brain
Suppose Frank places $8500 in an account that pays 14% Interest compounded each year.
Assume that no withdrawals are made from the account.
find the amount after year 1 and year 2
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$8500\\ r=rate\to 14\%\to \frac{14}{100}\dotfill &0.14\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{each year, thus once} \end{array}\dotfill &1\\ t=years\dotfill &1 \end{cases}[/tex]
[tex]A=8500\left(1+\frac{0.14}{1}\right)^{1\cdot 1}\implies A=8500(1.14)\implies \boxed{A=9690} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~~~~~~ \textit{Compound Interest Earned Amount}[/tex]
[tex]A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$8500\\ r=rate\to 14\%\to \frac{14}{100}\dotfill &0.14\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{each year, thus once} \end{array}\dotfill &1\\ t=years\dotfill &2 \end{cases} \\\\\\ A=8500\left(1+\frac{0.14}{1}\right)^{1\cdot 2}\implies A=8500(1.14)^2\implies \boxed{A=11046.6}[/tex]
9x^5 - 24x^4 + 15x^3 Rewrite those four terms as the product of two binomials.
Answer:
5071
Step-by-step explanation:
if you mutiply xu by the sum of a y then the complete explanation is that
You invest $500 when you are 18 years old. If
your money doubles every 3 years, how much
money will you have when you are 36 years old?
Answer:
30,000
Step-by-step explanation:
I don't have explanation sorry :/
Describe what happened
a between minute 10 and minute
twenty.
It stays the same, nothing happens
Answer:
nothing, the graph became neutral at the 1 1/2 mark and stayed that way untill it got to the 20.
Step-by-step explanation:
What value of k makes the equation true?
k – 3(k + 5) – 0.5 = 3(0.25k + 4)
Answer:
k = - 10
Step-by-step explanation:
k - 3(k + 5) - 0.5 = 3(0.25k + 4) ← distribute parenthesis on both sides
k - 3k - 15 - 0.5 = 0.75k + 12
- 2k - 15.5 = 0.75k + 12 ( subtract 0.75k from both sides )
- 2.75k - 15.5 = 12 ( add 15.5 to both sides )
- 2.75k = 27.5 ( divide both sides by - 2.75 )
k = - 10
Please help asap! I will gave brainlest!
Answer:
option D.
Step-by-step explanation:
for more info see the attachment.
what do you notice about these three angles HELP!!!!!!!!!!!!!!!!help now!
Answer:
They are all obtuse angles being over 90 degrees
Step-by-step explanation:
Two laboratory technicians are running product quality tests . One technician takes 6 minutes less than the other . What equation would give the amount of time , t , it would take to run the tests if the technicians work together to split the work on the different tests ? 1/(6t) = 1/x - 1/(x - 6) B 1/t = 1/x + 1/(x - 6) Oct t = x + x - 6 1/t = 1/x - 1/(x - 6)
Answer:
C. t = x + x - 6Step-by-step explanation:
Let the time use by other one technician be x
if the other technician takes 6 minutes less than the first technician, then the time taken by the other technician will (x - 6)
The total amount of time t it would take to run the tests if the technicians work together will be expressed by taking the sum of the time taken by the two technician as shown.
First technician = x
Second technician = x-6
Sum of the time taken
t = x+ (x-6)
Hence option C is correct
Help me plzzzzzzzzzzzzz
Answer:
Hi in my opinion maybe the answer is - 1
Answer:
(0, - 1)
Step-by-step explanation:
The y-intercept is the value of y when the x is equal to 0.
About 8% of the population of a large country is math phobic. If two people are randomly selected, what is the probability both are math phobic? What is the probability at least one is math phobic?
Answer:
the chances both are is=.64%
the chances of only one is=15.36%
Step-by-step explanation:
8%=.08
.08x.08= .0064=.64%
1-(1-0.08)×(1-0.08)
1-.92x.92
0.1536=
15.36%
a) The probability both are math-phobic: 0.0064 or 0.64%.
b) The probability that at least one is math-phobic is 0.1536 or 15.36%.
To determine the probability that both selected people are math-phobic, we can use the multiplication rule of probability.
Since the selection is random, the probability that the second person is math-phobic is also 0.08.
To find the probability that both events occur, we multiply the individual probabilities:
Probability of both being math-phobic = 0.08 x 0.08 = 0.0064
Therefore, the probability that both selected people are math-phobic will be 0.0064 or 0.64%.
To find the probability that at least one person is math-phobic, we can use the complement rule of probability.
The probability that the first person is not math-phobic ;
1 - 0.08 = 0.92.
Similarly, the probability that the second person is not math-phobic is also 0.92.
Probability of none being math-phobic = 0.92 x 0.92 = 0.8464
Probability of at least one being math-phobic = 1 - 0.8464 = 0.1536
Therefore, the probability that at least one person is math-phobic is 0.1536 or 15.36%.
Learn more about probability here;
https://brainly.com/question/9326835
#SPJ4
Help help help help
Answer:
(3, -9)
Step-by-step explanation:
5x + y = 7
-x - 2y = - 15
What we can do is multiply the second equation by 5, as we try to combine both equations to get rid of x.
5x + y = 6
-5x - 10y = 75
-9y = 81
y = -9
Now we plug y back in.
5x - 9 = 6
5x = 15
x = 3
Will give brainlist if truly correct
When should you use the median and interquartile range as your measure of center and measure of variability to compare populations shown on a box plot? Check all that apply.
when there are outliers in the data sets
when there are no big gaps in the middle of the data sets
when the plots representing the data are symmetrical
when the plots representing the data are nonsymmetrical
when there are no outliers in the data set
Answer:
The Answer are 1 ,2, 4
Step-by-step explanation:
when there are outliers in the data sets
when there are no big gaps in the middle of the data sets
when the plots representing the data are nonsymmetrical
Please help if you know.
Answer:- 617/100+i root 2
Step-by-step explanation: simplify
PLEASE HELP. ILL VOTE YOU BRAINLIEST!
Vanessa rode her bike to the conclave at 10km per hour and then walked back to school at 4km per hour. If the round trip took her 14 hours, how far was it to the site of the conclave?
The answer would be great but I’d really like to see how to set up the equation to get the answer.
You thought your bookcase was 80” (inches) tall. It was really 75.75“
tall. What was your % error rounded to the nearest tenth?
SOMEONE PLEASE ANSWER !!
Error
[tex]\\ \rm\Rrightarrow \dfrac{Difference}{Original}\times 100[/tex]
[tex]\\ \rm\Rrightarrow \dfrac{4.25}{80}\times 100[/tex]
[tex]\\ \rm\Rrightarrow 0.0535(100)[/tex]
[tex]\\ \rm\Rrightarrow 5.35\%[/tex]
[tex] \boxed{ \pmb{\% \: error = \frac{ |approx - actual| }{actual} \times 100 }}[/tex]
Approx = 80Actual = 75.75[tex] \sf\% \: error = \frac{ |80 - 75.75| }{75.75} \times 100[/tex]
[tex] \sf\% \: error = \frac{ |4.25| }{ \frac{303}{4} } \times 100[/tex]
[tex] \sf\% \: error = \frac{ 4.25 }{ \frac{303}{4} } \times 100[/tex]
[tex] \sf\% \: error = \frac{ \frac{17}{ \cancel4} }{ \frac{303}{ \cancel4} } \times 100[/tex]
[tex] \sf\% \: error = \frac{ 17 }{ 303 } \times 100[/tex]
[tex] \sf\% \: error = \frac{ 1700 }{ 303 } [/tex]
[tex] \sf\% \: error = 5.6\%[/tex]
If the perimeter of a square is 48 meters, what is the area of that square?
Answer:
Since in finding perimeter you add the lengths divide the number and substitute it into the formula for area
Please Help!
What is the answer to this question?
Answer:
The answer is 8
Step-by-step explanation:
I'm as smart as you. We aren't. ;D
Write an expression for the
product of 4 and m.
Answer:
4m
Step-by-step explanation:
Expressions do not have equal signs, So for the product of 2 things we just multiply them together.
4m
Answer:
4 × M = P
Explanation:
A product is the result of a multiplication expression, so in this case, We're using variables to represent numbers.
P = Product
We're multiplying 4 and M, so lets rewrite this.
4 × M
This is an incomplete expression, but what will we use for our product We can use a variable. Our variable is P. So lets complete this expression.
4 × m = p.
Or, we can put it in a less complex way.
4m.
This also is a incomplete expression, but it means 4 × m.