(2x-1)(x+5)=o solve for x
Answers
Answer:
x = - 5, x = \(\frac{1}{2}\)
Step-by-step explanation:
Given
(2x - 1)(x + 5) = 0
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
2x - 1 = 0 ⇒ 2x = 1 ⇒ x = \(\frac{1}{2}\)
Answer:
x = - 5, x = 1/2
Step-by-step explanation:
(2x - 1)(x + 5) = 0
x + 5 = 0 so x = - 5
2x - 1 = 0 so 2x = 1 so x = 1/2
Related Questions
Part A your were randomly survey 1,000 people at a local grocery store about their of consume use of corrective lenses would this be a valid random sample for your study on use of corrective eyewear in the United States? why or why not?
(explain in your own words)
Answers
For a fundraiser, a committee decided to use a dice game. For the dice throwing game, you win twice the value of the number you roll. They want to charge enough for the game that they will actually make money on it for their organization. What amount do you suggest they charge? Why?
Answers
helpppppppppppppppppppppppppppp
Answers
Answer:
conflict and frequent change
2.) Determine the sale price to the nearest cent
$39.00 jeans
40% off
Answers
Basically to know what your final price is you need to know what percentages represent.
Since they are simply parts of a whole (because you know 100% of something is a whole) we can look them as fractions like 40/100 in this case.
Then we can multiply 39.00 by 40/100 or 0.40 in decimal form and get 15.60.
It’’s important to remember that this 15.60 is just what 40%of 39 is so we still need to subtract it from our total to get the sales price.
39-15.60=23.40
So $23.40 is the sales price
Hope this helps!
Please Help ASAP! Rewrite x^4y^2 − 3x^3y^3 using a common factor.
A. 3xy(x^3y − x^2y)
B. 3xy^2(x^2 − x^2y)
C. x^2y(xy − 3xy^2)
D. x^2y^2(x^2 − 3xy)
I think it's B. But I might be wrong.
Answers
Answer:
Step-by-step explanation:
you are completely right please follow your heart <3
You have to look at both x and y and it’s power. You have to look for the lowest power for x and y. For y as you can see that the lowest power is 2. As for x it can be either power of 3 or even 2. When you removed x^2 and y^2 from the equation. The inside parenthesis will be x^2-3xy. Just remember when you divide both x^2 and y^2, you subtract the power.
When you get the answer, please check the answer if it’s the same as the original. Meaning distribution both x^2 and y^2 to inside parenthesis. And for the power, you add them. This way you can double check and see if it’s the same.
"Three times a number increased by eleven is seventeen" translates to which of the following equations?
11x + 3 = 17
11x - 3 = 17
3x + 11 = 17
3x - 11 = 17
Answers
Help me out please ASAP? Thanks so much!
Draw the image of ABC under a dilation whos center is P and scale factor is 1/3
(The blue triangle is the point of reference, the green is that of what you will be plotting to have a scale factor of 1/3)
Answers
Answer:
Shrink triangle ABC three times smaller than it is now, and make sure that point P is in the middle.
Step-by-step explanation:
Hope this helps!
Answer:
Make triangle ABC three times smaller than it is now, and also make sure that point P is in the middle at the end.
8th grade math i mark as brainliest
Answers
Answer:
We start with 4 cards. The probability of picking the 4 is 1/4. That card is put back, so we again have 4 cards. The probability of picking the 6 (the number greater than 5) is 1/4.
Therefore, the probability of picking a 4 and then a 6 is (1/4)(1/4) = 1/16.
Answer:
1/16
Step-by-step explanation:
Joe goes to the store and buys cokes. He can buy 10 cokes for $5.50. What is the unit rate from the problem?
Answers
= $0.55
Therefore one coke costs $0.55.
Answer:
$5.50 divided by 10 is $0.55 per each unit of coke
Step-by-step explanation:
Does anyone have the answer key to "Understand Systems of Linear Equations I-ready level H instruction?"
Answers
Answer:
no bro, sorry. even though I needed to I don't have it
Can someone help me with this two because I am very confused
Answers
Answer:
Let the height of the larger box = h
and length and width of the larger box = l and w , repectively
Now , Let find the volume of the larger box
Volume = length * width * height
So Volume of the larger box = l*w*h = lwh
Now the question says
the height of the smaller box is 80% of the height of the larger box
It means
Height of the smaller box = 80% of h = 0.80*h = 0.80h
and the other two dimensions are same so it means length and width of the smaller box = l and w
so, Volume of the smaller box = l*w*0.80h = 0.80lwh
So the Difference in the volume of the two boxes = Volume of larger box - Volume of smaller box
therefore , Difference in the Volume of two boxes = lwh - 0.80 lwh = 0.20lwh
Step-by-step explanation:
The amount of apples picked, in pounds, varies directly as the number of hours worked. After 5 hours, 15 pounds were picked.
What is the constant of proportionality K?
Answers
Answer:
3
Step-by-step explanation:
15/3= 5
15= 3*5
15- product (variable)
3 - constant
5- variable (time)
please help i'll do anything
Answers
Answer
3
Step-by-step explanation:
9=3q,q=3
please help i dont know this!!!!
Answers
Answer:
37.5 square feet
Step-by-step explanation:
Let me break it down into simple terms:
The question states, "cube with this net".
A cube has all 6 surfaces that are equal. The surface area is the area of each side added up.
In this case, since this net would form a cube, we can use the formula:
6·area of 1 square to get the surface area of the entire net.
We know that to find the area of a shape, it's simply length times width:
2.5x2.5
=6.25
Now, substitute that into the original equation (6·area of 1 square)
6(6.25)
=37.5
The surface area of this net is 37.5 square feet.
Hope this helps! :)
if 2+2=4 what does 4000 +900 +500+900+800+100+500+500+500=
Answers
Answer: 8,700
Step-by-step explanation:
lets say you have 500 animals, and you decide to get another 500, but you decide that you want an extra 500, and then your kid says that they want another 500 animals. You now have 2000 animals, but you also need 4000 chickens so you now have 6000 animals. Then you need 900 pounds of animal food, but 900 pounds is weird so you get an extra 100 to make your total 1000. But now you need 800 dogs so you now have 2800 animals.
4000 + (500 x 4) + 900 + 100 + 800 = 8,700
Answer:
The answer would be 8700
vWhile playing basketball, Ava's heart beat 80 times in 30 seconds.
While running, her heart beat 60 times in 20 seconds.
Which activity made her heart beat faster?
Answers
Answer:Running makes her heart beat faster
Step-by-step explanation:
HELPPPP PLZZ ND THANK YOU SOO MUCH
Answers
Answer:
50, 40, 30, 250, 350
Step-by-step explanation:
1/2 = 0.5, 0.5 x 100 = 50 (0.5 -> 5 -> 50)
2/5 = 0.4 (10 / 5 [the denominator] = 2, 0.2 x 2 [the numerator] = 0.4), 0.4 x 100 = 40 (0.4 -> 4 -> 40)
3/10 = (10 / 10 [the denominator] = 1, 0.1 x 3 [the numerator] = 0.3), 0.3 x 100 = 30 (0.3 -> 3 -> 30)
5/2 = 2.5 (2 1/2), 2.5 x 100 = 250 (2.5 -> 25 -> 250)
7/2 = 3.5 (3 1/2), 3.5 x 100 = 350 (3.5 -> 35 -> 350)
Note: I'm not sure if I understand the question completely, but I changed the fraction into a decimal and multiplied it by 100. Not sure what it means by "Divide fraction".
Answer:
According to the question , firstly we have to divide the fraction and then convert them into percentage
So , let's do it :-
1/2 = 0.5 = 50 %2/5 = 0.4 = 40 %3/10 = 0.3 = 30%5/2 = 2.5 = 250%7/2 = 3.5 = 350%Help please on this photo below
Answers
Answer:
12. The quotient of a number and ten = n/6
13. The sum of a number and six = x + 6
14. The product of nine and five less than a number = n = 9*5
15. Four times a number, reduced by one = 4*n - 1
I may have some wrong answers so please check them. :l
13- n + 6
14- 9(n-5) this is nine times n-5, n-5 HAS to be in parentheses!
15- (4 * N) -1
How do you solve a y=mx+b equation if x is unkown?
example -
y = 1.29x+2
How do I solve that? Please make sure to explain :) thanks!
Answers
Answer
Y= 2 x= -0.645
Step-by-step explanation:
you basically plug 0 into x and y
y=1.29(0)+ 2
y=2
0=1.29x+ 2
Answer:
Okay so "y = mx+b is a linear equation that represents a line on a graph; m represents the slope of the line and b is the y-intercept (The y-intercept of this line is the value of y at the point where the line crosses the y axis.)
In y = 1.29x+2, 1.29 is equal to m, so that is your slope.
The 2 is equal to the b so your y-intercept is 2.
Here's a graph to better understand it :)
....................
Answers
Answer:
?
Step-by-step explanation:
A thrift store was selling an Atari 2600 for $80 before deciding to have a 40% off promotion. A customer comes in to buy the console and pays with a 10% off any one item coupon. The coupon states that the 10% off coupon applies after any in-store promotions. The customer expects to get 50% off overall and pay 40.00. Is the customer correct?
Answers
Answer:
The customer is incorrect. They will pay $43.20 not $40.
Step-by-step explanation:
Since a thrift store is having 40% of $80, we have to calculate that. Doing so, we have to create proportions:
(The "/" sign is fraction)
1. x/80=40/100 2. 40*80=3200 3. x*100=100x 4. 100x=3200
5. x=3200/100 6. x=$32
Since $32 is 40% of $80, we have to do $80-$32=$48
So the thrift shop is lowering the price to $48.
But we can't forget about the 10% off coupon from the customer.
Now we have to find out what is 10% of $48. $48/10= $4.8
That's not our answer though. The final step is to do $48-$4.8 which gets our answer of $43.20 .
Nadia surveyed 80 students at her school and found that 0.55 of the students she surveyed said their favorite class is math. Another 15% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?
12
32
44
48
Answers
Answer:
32
Step-by-step explanation:
Factor completely: (4c - x)^2 - (2c + 3x)^2
Answers
Answer:
Graph for (4*2.99792e+08-x)^2-(2*2.99792e+08+3*x)^2
More info
How to solve your problem
(4−)2−1(2+3)2
(4c−x)2−1(2c+3x)2(4c-x)^{2}-1(2c+3x)^{2}(4c−x)2−1(2c+3x)2
Simplify
1
Expand the square
(4−)2−1(2+3)2
(4c−x)2−1(2c+3x)2\left(4c-x\right)^{2}-1(2c+3x)^{2}(4c−x)2−1(2c+3x)2
(4−)(4−)−1(2+3)2
(4c−x)(4c−x)−1(2c+3x)2(4c-x)(4c-x)-1(2c+3x)^{2}(4c−x)(4c−x)−1(2c+3x)2
2
Distribute
(4−)(4−)−1(2+3)2
(4c−x)(4c−x)−1(2c+3x)2{\color{#c92786}{(4c-x)(4c-x)}}-1(2c+3x)^{2}(4c−x)(4c−x)−1(2c+3x)2
4(4−)−(4−)−1(2+3)2
4c(4c−x)−x(4c−x)−1(2c+3x)2{\color{#c92786}{4c(4c-x)-x(4c-x)}}-1(2c+3x)^{2}4c(4c−x)−x(4c−x)−1(2c+3x)2
3
Distribute
4(4−)−(4−)−1(2+3)2
4c(4c−x)−x(4c−x)−1(2c+3x)2{\color{#c92786}{4c(4c-x)}}-x(4c-x)-1(2c+3x)^{2}4c(4c−x)−x(4c−x)−1(2c+3x)2
162−4−(4−)−1(2+3)2
16c2−4cx−x(4c−x)−1(2c+3x)2{\color{#c92786}{16c^{2}-4cx}}-x(4c-x)-1(2c+3x)^{2}16c2−4cx−x(4c−x)−1(2c+3x)2
4
Distribute
162−4−(4−)−1(2+3)2
16c2−4cx−x(4c−x)−1(2c+3x)216c^{2}-4cx{\color{#c92786}{-x(4c-x)}}-1(2c+3x)^{2}16c2−4cx−x(4c−x)−1(2c+3x)2
162−4−4+2−1(2+3)2
16c2−4cx−4cx+x2−1(2c+3x)216c^{2}-4cx{\color{#c92786}{-4cx+x^{2}}}-1(2c+3x)^{2}16c2−4cx−4cx+x2−1(2c+3x)2
5
Combine like terms
162−4−4+2−1(2+3)2
16c2−4cx−4cx+x2−1(2c+3x)216c^{2}{\color{#c92786}{-4cx}}{\color{#c92786}{-4cx}}+x^{2}-1(2c+3x)^{2}16c2−4cx−4cx+x2−1(2c+3x)2
162−8+2−1(2+3)2
16c2−8cx+x2−1(2c+3x)216c^{2}{\color{#c92786}{-8cx}}+x^{2}-1(2c+3x)^{2}16c2−8cx+x2−1(2c+3x)2
6
Expand the square
162−8+2−1(2+3)2
16c2−8cx+x2−1(2c+3x)216c^{2}-8cx+x^{2}-1\left(2c+3x\right)^{2}16c2−8cx+x2−1(2c+3x)2
162−8+2−1(2+3)(2+3)
16c2−8cx+x2−1(2c+3x)(2c+3x)16c^{2}-8cx+x^{2}-1(2c+3x)(2c+3x)16c2−8cx+x2−1(2c+3x)(2c+3x)
7
Distribute
162−8+2−1(2+3)(2+3)
16c2−8cx+x2−1(2c+3x)(2c+3x)16c^{2}-8cx+x^{2}-1{\color{#c92786}{(2c+3x)(2c+3x)}}16c2−8cx+x2−1(2c+3x)(2c+3x)
162−8+2−1(2(2+3)+3(2+3))
16c2−8cx+x2−1(2c(2c+3x)+3x(2c+3x))16c^{2}-8cx+x^{2}-1({\color{#c92786}{2c(2c+3x)+3x(2c+3x)}})16c2−8cx+x2−1(2c(2c+3x)+3x(2c+3x))
8
Distribute
162−8+2−1(2(2+3)+3(2+3))
16c2−8cx+x2−1(2c(2c+3x)+3x(2c+3x))16c^{2}-8cx+x^{2}-1({\color{#c92786}{2c(2c+3x)}}+3x(2c+3x))16c2−8cx+x2−1(2c(2c+3x)+3x(2c+3x))
162−8+2−1(42+6+3(2+3))
16c2−8cx+x2−1(4c2+6cx+3x(2c+3x))16c^{2}-8cx+x^{2}-1({\color{#c92786}{4c^{2}+6cx}}+3x(2c+3x))16c2−8cx+x2−1(4c2+6cx+3x(2c+3x))
9
Distribute
162−8+2−1(42+6+3(2+3))
16c2−8cx+x2−1(4c2+6cx+3x(2c+3x))16c^{2}-8cx+x^{2}-1(4c^{2}+6cx+{\color{#c92786}{3x(2c+3x)}})16c2−8cx+x2−1(4c2+6cx+3x(2c+3x))
162−8+2−1(42+6+6+92)
16c2−8cx+x2−1(4c2+6cx+6cx+9x2)16c^{2}-8cx+x^{2}-1(4c^{2}+6cx+{\color{#c92786}{6cx+9x^{2}}})16c2−8cx+x2−1(4c2+6cx+6cx+9x2)
10
Combine like terms
162−8+2−1(42+6+6+92)
16c2−8cx+x2−1(4c2+6cx+6cx+9x2)16c^{2}-8cx+x^{2}-1(4c^{2}+{\color{#c92786}{6cx}}+{\color{#c92786}{6cx}}+9x^{2})16c2−8cx+x2−1(4c2+6cx+6cx+9x2)
162−8+2−1(42+12+92)
16c2−8cx+x2−1(4c2+12cx+9x2)16c^{2}-8cx+x^{2}-1(4c^{2}+{\color{#c92786}{12cx}}+9x^{2})16c2−8cx+x2−1(4c2+12cx+9x2)
11
Distribute
162−8+2−1(42+12+92)
16c2−8cx+x2−1(4c2+12cx+9x2)16c^{2}-8cx+x^{2}{\color{#c92786}{-1(4c^{2}+12cx+9x^{2})}}16c2−8cx+x2−1(4c2+12cx+9x2)
162−8+2−42−12−92
16c2−8cx+x2−4c2−12cx−9x216c^{2}-8cx+x^{2}{\color{#c92786}{-4c^{2}-12cx-9x^{2}}}16c2−8cx+x2−4c2−12cx−9x2
12
Combine like terms
162−8+2−42−12−92
16c2−8cx+x2−4c2−12cx−9x2{\color{#c92786}{16c^{2}}}-8cx+x^{2}{\color{#c92786}{-4c^{2}}}-12cx-9x^{2}16c2−8cx+x2−4c2−12cx−9x2
122−8+2−12−92
12c2−8cx+x2−12cx−9x2{\color{#c92786}{12c^{2}}}-8cx+x^{2}-12cx-9x^{2}12c2−8cx+x2−12cx−9x2
13
Combine like terms
122−8+2−12−92
12c2−8cx+x2−12cx−9x212c^{2}{\color{#c92786}{-8cx}}+x^{2}{\color{#c92786}{-12cx}}-9x^{2}12c2−8cx+x2−12cx−9x2
122−20+2−92
12c2−20cx+x2−9x212c^{2}{\color{#c92786}{-20cx}}+x^{2}-9x^{2}12c2−20cx+x2−9x2
14
Combine like terms
122−20+2−92
12c2−20cx+x2−9x212c^{2}-20cx+{\color{#c92786}{x^{2}}}{\color{#c92786}{-9x^{2}}}12c2−20cx+x2−9x2
122−20−82
Step-by-step explanation:
Solve the following equation for x.
\(\frac{x-5}{2}\) = -6
x = -2
x = 2
x = -7
x = -17
Answers
Option C is answer.
Step-by-step explanation:
Hey there!
Given;
\( \frac{x - 5}{2} = - 6\)
Multiply "-6" and "2".
\(x - 5 = - 6 \times 2\)
\(x - 5 = - 12\)
Shift "-5" on right side.
\(x = - 12 + 5\)
Therefore, X = -7.
Hope it helps...
CORRECT THE ERROR 1) 4a^(2)*3a^(5)=(4+ 3)a^(2+5)=7a^(7) // 2) x^(6)x*x^(3)=6^(4+3) //
3) 3^(4)*2^(3)=6^(4+3)
please tell how you corrected you DONT have to but i'd appreciate it
Answers
Answer:
3
Step-by-step explanation:
Help me please i'm stuck
Answers
Answer:
It would be -2 and left.
Step-by-step explanation:
This is because -2 is the bigger number, so that means -2 and left are smaller.
Answer:
i wish i could help this one was hard
Step-by-step explanation:
Solve the following inequality for w: 6w + 7 ≥ 10w + 2
Answers
HELP FAST PLEASE!!!!!! Name the marked angle in 2 different ways.
Answers
Answer:
∠MKL and ∠LKMStep-by-step explanation:
Angles can be named by the vertex or the names of the rays the angle lye between.
∠MKL and ∠LKMNaming by a vertex only would be confusing in the given case:
∠K would represent 3 different angles.Answer:
∠MKL and ∠LKM
Step-by-step explanation:
Angles can be named by the vertex or the names of the rays the angle lye between. ∠MKL and ∠LKM Naming by a vertex only would be confusing in the given case: ∠K would represent 3 different angles.Hope this helps!
At an amusement park, riders must be a least 100 centimeters tall to ride a roller coaster.
a) Jeremy is 4 feet 3 inches tall. There are 2.54 centimeters in 1 inch. What is Jeremy's height in centimeters?
b) Is Jeremy tall enough to ride the roller coaster?
Please answer with either yes or no!
Answers
Dalton has $40 in an account that earns 10% interest compounded annually.
To the nearest cent, what will be the total amount of money in
his account after two years?
$52.25
$40.00
$8.40
$48.40
Answers
Formula for compound intrest = a(1+r/10)^n
40(1+10/100)^2
40x(11/2)^2
=48.4