Answer:
(x+2)⋅(x−3)
Step-by-step explanation:
Answer:
[tex](x-3)(x+2)[/tex]
Step-by-step explanation:
[tex]x^2-x-6\\=x^2-3x+2x-6\\=x(x-3)+2(x-3)\\=(x-3)(x+2)[/tex]
if you have a GCF of x is that a root?
Answer:
No,
Step-by-step explanation:
No, GCF is not a root, it is the coefficient of x.
3) There were 35 children and 10 adults at a barbeque.
a. What is the ratio of adults to
children at the barbeque?
b. What is the ratio of children to
total people at the barbeque?
c. Five more children came to the
barbeque. Now what is the ratio
of children to total people?
Answer:
3. a. 10:35= 2:7
b.35:45=7:9
c.40:50=4:5
It's impossible to use a Cartesian coordinate system to measure three-
dimensional objects.
A. True
B. False
Answer:
False
Step-by-step explanation:
(Mark me Brainliest Please .-. )
A company claims that its laptops have an average battery life of at least 12 hours. How would you formulate this
Options:
H0 :
H0 : µ =12
H0 > 12> H1
None of these
Answer:
None of these
Step-by-step explanation:
The answer is
H0 : µ ≧ 12
Ha : µ<12
We formulate the null and alternative hypothesis here to state that battery life of the laptop lasts at least 12 hours(more than but not less, null hypothesis) or that it lasts less than 12 hours(alternative hypothesis).
The null hypothesis is the one being tested to know whether we would reject it or not in which case we choose the alternative hypothesis. To test the hypotheses, we do a t test using a significance level of say 0.05(95% confidence interval) and find our p value in order to compare and decide if the null hypothesis would be rejected or not based on statistical significance.
PLEASE HELP!! Algebra 2
Answer:
No
Edit:
Yes, based on original equation. (Credit to greenpumpkin for correction)
Step-by-step explanation:
For this problem, we simply need to find the values of x that can make the equation true. So, let's begin by isolating the "x" variable.
sqrt(2x + 13) = x + 5
[sqrt(2x + 13)]^2 = (x + 5)^2
2x + 13 = x^2 + 10x + 25
0 = x^2 + 8x + 12
Note, we can remove the sqrt method by squaring both sides of the equation. Doing this, we see we have a quadratic equation meaning we can apply the quadratic formula to find solutions for x.
[-b +/- sqrt( b^2 - 4(a)(c) ) ] / 2a
Let a = 1, b = 8, and c = 12
[-8 +/- sqrt( (8)^2 - 4(1)(12) ) ] / 2(1)
= [-8 +/- sqrt( 64 - 48 ) ] / 2
= [-8 +/- sqrt(16) ] / 2
= [ -8 +/- 4 ] / 2
So, x = [ -8 + 4 ] / 2 and x = [-8 - 4 ] / 2
x = [-4] / 2 = -2 and x = [-12] / 2 = -6
Hence, the two values of x that can solve this quadratic equation are x = -2 and x = -6.
Therefore, we know that x = -6 is not extraneous, meaning it is a solution to our equation.
Cheers.
----------------------------------------------------
Edit:
Plugging the value of -6 back into the original equation, we get the following:
sqrt(2x + 13) = x + 5
sqrt(2(-6) + 13) = (-6) + 5
sqrt (1) = -1
1 != -1
Given that 1 cannot equal negative 1, we can say that x = -6 is an extraneous solution. (Credit to greenpumpkin for correction)
Someone please help me !!!!!
A lion can run 18 mph faster than a giraffe. If a lion can run 50 mph how fast can the giraffe run?
Answer:
32
Step-by-step explanation:
its just 50 minus 18 and dont forget to borrow
Answer:
32mph
Step-by-step explanation:
So I think all you have to do is subtract 18 from 50 so 50 - 18 = 32mph
So in conclusion the giraffe can run 32mph if a lion is running at 50mph
CAN SOMEONE HELP ME PLEASE
Answer:
B) EF
Step-by-step explanation:
A diameter the length of the line through the center that touches two points on the edge of the circle.
In this case, EF is the two points touching the edge of the circle.
What are the answers and how?
Answer:
a) [tex]x=2p-4[/tex]
b) our team scored 44 points
Step-by-step explanation:
Your basketball team scored 4 fewer than twice as many points p as the other team.
a) Write algebraic expression
Let x is your basketball team score, the expression will be:
[tex]x=2p-4[/tex]
b) The other team scored 24 points. How many points did your team score?
p=24
we need to find x
[tex]x=2p-4\\Put \ p=24\\x=2(24)-4\\x=48-4\\x=44[/tex]
So, our team scored 44 points
49 increased by twice a number m
W
49(2m)
2m - 49
49 + 2m
2m + 49
Answer:
The answer to this question is 49＋2m.
Answer:
49 + 2m
Explanation:
49 is being Increased by so you would be adding a certain ammount to 49
help neeeddded........
Answer:
D 7a - 11b
Step-by-step explanation:
9a- b -2a - 10b
7a - b -10b
7a - 11b
Answer:
I believe the correct answer is D.
Step-by-step explanation:
11)
Paul pays the delivery man £180 for working 24 hours.
How much will he pay him for working 40 hours?
£
Answer:
£196
Step-by-step explanation:
1) 180/24=7.5
2) 40-24=16
3) 180+16=196
so he has to pay £196
Help. I don’t understand this.
Answer:
f(6)=2
f(2)=4
f(0)=7
f(5)=1.5
f(x)=1 x=4
Step-by-step explanation:
f(x)=y.The numbers represent the x values. As you are plugging in a number for x. Just look at the graph on the x-axis to get the y-values.
Graph y=-3x+4
Please Help
Answer:
(-2,10)
(-1,7)
(0,4)
(1,1)
(2,-2)
(3,-5)
Step-by-step explanation:
Answer:
your anwer is x=-1/3y+4/3
Step-by-step explanation:
4/ PLEASE HELP ME ON THIS. ASAP
Answer: a,b,d,e are all right beacuse they all relate to the question
Step-by-step explanation:
c how ever is no shown on the graph and is therefor wrong
Below are the test scores of nine students on the math test:
50, 50, 50, 50, 51, 89, 90, 90, 90
What is the mean absolute deviation of the test scores? (round to the nearest thousandth)
Answer:
The mean absolute deviation is 19.5
Step-by-step explanation:
Hope this helps!
During the month of april it rains 2 days for every 3 days it does not rain. what percent of the days in April does it rain?
(dont answer this if you cannot xd)
Answer:
40%
Step-by-step explanation:
I pretty sure this is correct. let me know if its not and i will try again!
Answer:3. |x-3|= 1/2
Step-by-step explanation: Each terms of a certain sequence is greater than the term befor it. The difference between any two consecutive terms in the same sequence is always the same number. If the third and sixth terms of the sequence are 17 and 77, respectively, what is the 8th term?
3. |x-3|= 1/2
Help me pleasee Jesus (10 points )
Answer:
Pretty sure it's 29
Step-by-step explanation:
The triangle has to be 180 degrees so 15+36=51 180-51=29
Answer:
45°
Step-by-step explanation:In a triangle all the angles added together will equal 180°
find the slope of the line please help
Answer:
2/5 I think I'm not sure tho :/
Answer:
Slope is -1/2 this is the answer 1 down and 2 across.
Step-by-step explanation:
Can I have brainiest
A 10-foot by 12-foot wall has two windows that measure 3 feet by 5 feet each.
5 feet
5 feet
10 feet
3 feet
3 feet
12 feet
If the windows are not to be painted, what percent of the wall will be painted?
12 ft maybe? i dunno im sorry if this is wrong
Identify the next three numbers in this sequence : 2,8,4,16,12
Answer:
18, 14, 20
Step-by-step explanation:
Answer:
I got A 18,14, and 20
Step-by-step explanation:
PLZ CORRECT ME IF I AM WRONG PLZ AND THANK YOU
5. Ellen wants to rent a bike. They charge a $12 service
fee plus $16 per hour and she can spend at most $140,
how many hours can she rent the bike?
Answer:
5
Step-by-step explanation:
cuz 12 +16 is 28, 140÷28 is 5
Answer:
16h + 12 = 140
Step-by-step explanation:
She can ride the bike for 8 hours.
What is f'(x) = if f(x) =4tan (1/2-x
No need to answer I just want to get rid of the points.
Answer:
ok
Step-by-step explanation:
easy question and easy point
what is 2+2-2+6*8
determine whether the triangles are congruent by sss sas asa aas or hl
What is the equation of this line?
Please Help
y=1/2x -2
y=-2x -2
y=2x -2
y=-1/2x -2
Answer:
the first option
Step-by-step explanation:
the slope is the rise over run (up over across) and the line meets the y axis at -2 so that is your intercept
Please choose all linear functions with slope that is greater than jamals linear function.
Answer:
a b
Step-by-step explanation:
The cost of 4 belts and 5 ties is $247. Each time costs 3 times as much as a belt. What us the total cost of 1 belt and 1 tie
Answer:
The total cost of 1 belt and 1 tie is $13 and $39 respectively.
Step-by-step explanation:
Given that,
The cost of 4 belts and 5 ties is $247.
Each tie costs 3 times as much as a belt.
Let the cost of a belt is x and that of a tie is y.
ATQ,
4x + 5y = 247 ...(1)
y = 3x ....(2)
Put the value of y from equation (2) in equation (1)
4x + 5(3x) = 247
4x + 15x = 247
19x = 247
x = 13
Put the value in equation (2)
y = 3x
= 3(13)
= 39
So, the total cost of 1 belt and 1 tie is $13 and $39 respectively.
On Monday, November 16, 2020, 11 students from class 731 were present for math class. If there are 29 students enrolled in class 731, approximately what percent of the students were absent? Round your answer to the nearest percent.
Answer:
62%
Step-by-step explanation:
cross-multiply and do some algebra and boom, you have the answer
Solve.
4x -6= 14
X=?
Answer:
5
Step-by-step explanation:
Given:
[tex]4x-6=14[/tex]
Add both sides by 6:
[tex]4x-6=14[/tex]
[tex]+6=+6[/tex]
[tex]4x=20[/tex]
Divide by 4:
[tex]\frac{4x}{4} =\frac{20}{4}[/tex]
Solve for x
[tex]x=5[/tex]
The value of x in the equation is 5.
Given is an equation 4x - 6 = 14, we need to find the value of x,
To find the value of x in the equation 4x - 6 = 14, we can follow these steps:
Add 6 to both sides of the equation to isolate the term with x:
4x - 6 + 6 = 14 + 6
4x = 20
Divide both sides of the equation by 4 to solve for x:
(4x)/4 = 20/4
x = 5
Therefore, the value of x in the equation 4x - 6 = 14 is 5.
Learn more about equation click;
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