Solve by completing the square. x^2-10x-5=28
Answers
Answer:
Hey THERE
x=5+√58 or x=5−√58 is the answer
Step-by-step explanation:
x2−10x−5=28
Answer: look at the picture
Step-by-step explanation: hope this help :)
Related Questions
3. Diego measured the length of a pen to be 20 cm. The actual length of the pen is 22 cm.
Which of these is closest to the percent error for Diego's measurement?
A. 2%
B. 4.5%
C. 10%
D. 9%
Answers
22cm—>100%
2cm—->2x100\22=9.09%
Diego’s error was 2cm Which represents 9.09% of the actual length of the pen
Hurryyyy helpppp
Find the unknown side length, x. Write your answer in simplest radical form.
A. 2√41
B. 4√29
C. 48
D. 58
Answers
Answer:
The answer is D. 58
Step-by-step explanation:
I'm just good like that
Which ordered pair is a solution of y > 5x-2?
(3,13)
(1,5)
(2,7)
(4,4)
Answers
lol
Step-by-step explanation:
HELLLLLPPPPPPPPPPPPPPPp ASPAPppp plzzz
Answers
Step-by-step explanation:
2+b《3b.
hope u got it....
Answer:
2+b<3b
Step-by-step explanation:
sum means addition. so the sum of b and 2 would mean 2+b. triple the number b literally means b times 3. so, that is the answer.
Which method would be best (quickest) for solving the system below:
3x - 4y = -2
y = 2x + 1
Answers
Write the equations under one another, like this:
2x - y = -1
+ 3x + 4y = 26
Ideally, we would like for one of the variables to be eliminated when we add vertically (straight down). But if we add them as they are this does not happen. We must manipulate one of the equations so that it will happen. Again, you can try to eliminate either x or y. I always look for a term that has a coefficient of 1 (or negative 1). So, let's use that y from the first equation again.
If the coefficient of the y in the other equation is POSITIVE 4, then I need the coefficient from the first equation to be its opposite, NEGATIVE 4. To do this, simply multiply the first equation by 4, this will create MAGIC!
4( 2x - y = -1)
+ 3x + 4y = 26
Be certain to Distribute across the entire first equation, so multiply all three terms by 4.
8x - 4y = -4
+ 3x + 4y = 26
Now add straight down (vertically). The y term will be eliminated.
11x = 22
Divide both sides of the equation by 11.
x = 2
Almost there! Now, substitute the 2 in for x in either of the original equations. Either one will work. I'm gonna use the second equation.
3x + 4y = 26
3(2) + 4y = 26
6 + 4y = 26
Subtract 6 from both sides of the equation.
4y = 20
Divide both sides of the equation by 4.
y = 5
That's it! There it is again. Put it all together. If x = 2 and y = 5, then the solution is the ordered pair, (2,5).
Mayra bought x grams of rice.
Anika bought 5
more than Mayra bought.
Select ALL of the equations that represent the relationship
between the amount of rice that Mayra bought, x, and the
amount of rice that Anika bought, y.
(Select all that apply)
Answers
Answer:
[tex]y = 5 + x[/tex]
[tex]y - x = 5[/tex]
[tex]x = y - 5[/tex]
Step-by-step explanation:
No options were given but the question can still be solved
Given
From the first statement, we have:
[tex]Maria = x[/tex]
From the second, we have:
[tex]Anika = 5\ more[/tex]
Required
Determine the relationship between the amount of rice they bought
5 more means 5 + Maria.
So, [tex]Anika = 5\ more[/tex] becomes
[tex]Anika = 5 + Maria[/tex]
Substitute x for Maria
[tex]Anika = 5 + x[/tex]
For proper expression, let Anika be y
[tex]y = 5 + x[/tex]
Subtract x from both sides
[tex]y - x = 5[/tex]
Make x the subject
[tex]x = y - 5[/tex]
The slope of a line is -4, and the y-intercept is -3. What is the equation of the line written in slope-intercept form?
y = 4x - 3
y = -4x + 3
y = -4x - 3
Answers
Plz help me I will give brainliest
Answers
Answer:
it's the bottom one
Step-by-step explanation:
its D
Answer:
third one
Step-by-step explanation:
how many 3/8 are in 8?
Answers
Answer:
5? i think i got it wrong
Step-by-step explanation:
Answer:
21.333
Step-by-step explanation:
One of the legs of a right triangle measured 6 cm and the other leg measures 17cm. Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
Answers
Answer:
don't no for the answer he app vapru naga he app bakwas ahe
A car rental agency charges $40 per day for the first 7 days, and $35 a day for each day after that. How much would joe be charged if he rented a car for 10 days?
$415
$405
$395
$385
$375
Answers
Answer:
$385
Step-by-step explanation:
7x$40=280
3x$35=105
280+105=385
Answer:
$385
Step-by-step explanation:
If for the first seven days Joe has to pay $40, you would multiply that number by seven to get $280. However, he had the car for 3 extra days so you would multiply the additional cost of $35 per day by 3 to get $105. After that all you have to do is add $280+$105 to get a total of $385.
18 + 18 + 18 + 18 - 24 + 1 + 3 + 5 + 7 + 20 - 23 =?
Answers
Answer: 61
Step-by-step explanation:
Use addition to solve the equation.
18 + 18 + 18 + 18 - 24 + 1 + 3 + 5 + 7 + 20 - 23 = 61.
Answer:
61
Step-by-step explanation:
What do you get when you plug 4 in the following function?
Answers
Answer:
567
Step-by-step explanation:
It will become:
y = 7(3)^4
y = 7 * 81
y = 576
Answer:
Y = 567
Step-by-step explanation:
Y=7(3)(3)(3)(3)
solve using a2 + b2 = c2
show ur work please :)
Answers
8100+8100=c^2
16200=c^2
C= ~127.28
Can somebody plz heLp answer number 7-8 thanks!!!
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD
Answers
Answer:
7. x - 16 = 5
x = 21
8. x ÷ 2 = 8
x = 16
good luck, i hope this helps :)
Help me asp please I need this answer within 5mins
Answers
Apply the distributive property to create an equivalent expression.
-9•(5j+k)
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because -9 times 5j is -45j
and -9 times k is -9k
Let g(x) = 5x + 7. What is g(1)?
Answers
Step-by-step explanation:
given
g(x) = 5x + 7
g(1) = 5 * 1 + 7
= 5 + 7
= 12
Hope it will help :)
Answer:
12
Step-by-step explanation:
5 x 1=5
5+7=12
In this expression what is the variable?
5x + 23
Answers
suzy ran 4 laps on monday and 10 laps on friday. what is the percent of change from monday to friday? HELPP WILL MARK BRAINLIAST
Answers
Answer:
SHE RAN 6 MORE LAPS ON FRIDAY THAN MONDAY
Step-by-step explanation:
Please help!!! (i'll give brainliest to the best answer)
Answers
Answer:
i think it c since it is involving fractions
Step-by-step explanation:
Answer:
1. a. graphing method
2. b. substitution method
3. c. elimination method
Hurry please It’s timed
Answers
Answer: could possibly be the fifth one and could also be the third
Step-by-step explanation: I’m not positive though
A bicycle store costs $2600 per month to operate. The store pays an average of $60 per bike. The average selling price of each bicycle is $100. How many bicycles must the store sell each month to break even?
Answers
A ticket for a seat at a school play costs £2.95
There are 21 rows of seats.
There are 39 seats in each row.
The school will sell all the tickets.
Work out an estimate for the total money the school will get.
Answers
Answer:
Answer vary :
2.95(21 times 39) = $2,416.05
Step-by-step explanation:
honestly in my opinion that the answer. so we’re trying to find out how much money the school will earn.
if each seat cost 2.95 we need to find out how many seats are their?
-21 times 39 = 819
we multiplied the rows and seats find out how many seats their are and the answer is 819.
after you do that now we have to find out how much money they will earn from selling all 819 seats.
-819 times 2.95 = 2,416.05
we then multiplie all of the seats wich is 819 seats by 2.95 wich is the cost of one seat and got 2,416.05, and that’s the answer we’ve been looking for.
and that’s how I got my answer.
The total money school will get is £2416.05 on a play.
What is multiplication?Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.
Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.
Given:
A ticket for a seat at a school play costs £2.95
There are 21 rows of seats.
There are 39 seats in each row.
That means,
there are total 21 x 39 = 819 seats.
So, the total money the school will get,
= 819 x £2.95
= £2416.05
Therefore, school makes £2416.05 on a play.
To learn more about the multiplication;
https://brainly.com/question/19634536
#SPJ2
LAST PAGE!!! PLEASE HELP ME!! IL YOU GUYS SM!!! EXTRA POINTS BC THIS PAGE IS A DECENT AMOUNT OF WORK ∅-∅ ⊕-⊕ Ф-Ф
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hope it's helpful ❤❤❤❤❤❤❤
THANK YOU.
HURRY I NEED HELP!!!
Distribute the expression
}(2n + 6 - 48y)
Answers
Answer:
2(n+3-24y)
Step-by-step explanation:
hope this helps!
i need help i will get a zero if i dont
Answers
Answer:
You would multiply 7cm twice. and then multiuply 9 twice and then you add the two sums.
so 49 plus 81 is 130
so you have 130 cm.
Step-by-step explanation:
Hope this helps Im bad at math.
Identify the slope and y-intercept of the graph of the equation. y =3/5 x + 1
Answers
Answer:
slope = 3/5
y intercept = 1
Step-by-step explanation:
i think
Answer:
Slope: 3/5
Y-int: 1
Step-by-step explanation:
Slope intercept form is y=mx+b, with m being the slope being the y-int. So, m is 3/5 and b is 1 in the equation.
(hope this helps :P)
what is 8.154 to 1 decimal place?
Answers
The main point is that you want to round 8.154 to two digits or places after the decimal point. Thus, we want to eliminate the last digit in 8.154. To eliminate the last digit in 8.154, we use the following Two Decimal Places Rules to get the answer:
Two Decimal Places Rule #1: If the last digit in 8.154 is less than 5, then remove the last digit.
Two Decimal Places Rule #2: If the last digit in 8.154 is 5 or more and the second to the last digit in 8.154 is less than 9, then remove the last digit and add 1 to the second to the last digit.
If CDG ~ EDF, find the value of x.
2x+7
5x-2
48
40
Answers
Answer:
x=4
Step-by-step explanation:
48/5x-2 = 40/2x+7
48(2x+7) = 40(5x-2)
96x+336 = 200x-80
-96x -96x
336 = 104x-80
+80 +80
416/104 = 104x/104
x = 4
The value of x is equal to 4.
we have given that,
If CDG ~ EDF, find the value of x.
2x+7
5x-2
48
40
we have to determine the value of the x.
What is the similarity of the triangle?
Two triangles are similar if they have the same ratio of corresponding sides and equal pairs of corresponding angles.
48/5x-2 = 40/2x+7
48(2x+7) = 40(5x-2)
96x+336 = 200x-80
-96x -96x
336 = 104x-80
+80 +80
416/104 = 104x/104
x = 4
To learn more about a similar triangle visit:
https://brainly.com/question/2644832
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