Answers
x = -5 + 5√3
Step-by-step explanation:
A = ℓ × w
50 = (x + 10) × x
50 = x² + 10x
x² + 10x - 50 = 0
a = 1b = 10c = -50x = [-b ± √(b² - 4ac)] / 2a
x = [-10 ± √(10² - 4(1)(-50))] / 2(1)
x = [-10 ± √(100 - (-200))]/2
x = [-10 ± √300]/2
x = [-10 ± 10√3]/2
x = [-5 ± 5√3]
because x is a unit of length, it is positive
x = -5 + 5√3
Related Questions
A speedboat travels 18 miles in 12 minutes.At this rate, how far will the boat go in 1hour? (12 minutes = hour)
Answers
Answer:
find the speed for one minute which would 18 divide by 12 which is 1.50 after multipy by 60 because 60 minutes equals 1 hour
Step-by-step explanation:
a boat traveled 14 miles per hour downstream. the trip upstream was at a speed of 10 miles per hour. what is the speed of the boat in still water? what is the speed of the current
Answers
Answer:
(im not sure what the first question is asking me)
Speed of the current is 2 miles per hour
Step-by-step explanation:
The reason the current is 2 miles per hour is because it when going down stream they were going 14 miles per hour, going upstream they went 10. The difference is 4mph. So if the current pushes you 2mph when going down stream and holds you 2 mph when going up, the constant speed is 12mph then you add and subtract 2 becuase of the two directions youre traveling. hence 10mph and 14mph.
If two angles add up to 180 how many angles are there?
Answers
Answer:
Step-by-step explanation:
According to Supplementary Angles rules: two angles add up to 180
QUICK QUESTION: did I do this right?
Answers
Hope you have a good day!
Can ai get brainliest?
i really don't understand this! i need help asap! please explain how to do it and how you got your answer!
Answers
15 friends sold the same number of tickets each. They sold x tickets altogether. How many tickets did each of them sell?
Answers
Answer:
hhgfghgffgtfhhjjjjhhfsadsdffbnjghdrr
Answer:
Hey man im not very smart
Step-by-step explanation:
This is the Length of Arc....pls. try to answer.
Answers
Answer:
75 cmmmmmmmmmmmmmmmmmm
The speed s (in miles per hour) of a car driving on dry asphalt can be given by s = 4.747 d, where d is the stopping distance
(in feet). What is the approximate stopping distance of a car traveling 30 miles per hour? Round your answer to the nearest
hundredth
Answers
Answer:
30mph
Step-by-step explanation:
i forgot how to show the problem....
Mason is driving on a long road trip. He currently has 12 gallons of gas in his car. Each hour that he drives, his car uses up 1.5 gallons of gas. How much gas would be in the tank after driving for 2 hours? How much gas would be left after tt hours?
Answers
Answer: 9
12-1.5t
Step-by-step explanation:
1.5*2=3
12-3=9
1.5*t=1.5t
If he used 3 gallons of gas. Then the amount of the gas in the tank after driving for 2 hours will be 9 gallons.
What is Algebra?Algebra is the study of mathematical symbols, and the rule is the manipulation of those symbols.
Mason is driving on a long road trip. He currently has 12 gallons of gas in his car. Each hour that he drives, his car uses up 1.5 gallons of gas.
Then the amount of the gas in the tank after driving for 2 hours will be
The amount of gas used in 2 hours will be
Used gas = 2 x 1.5
Used gas = 3 gallons of gas
Then the remaining amount will be
Remaining amount of gas = 12 - 3
Remaining amount of gas = 9 gallons
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
PLEASE HELP ME!!!!!!
Answers
its just -1/2 tho or -0.5
Determine if each conjecture is true or false. If false, provide a counterexample.
Answers
Answer:
1)TRUE 2) The difference of any two negative integers is a negative integer.
3)TRUE 4) TRUE 5)FALSE-REASON-Freshwater fish maintain the physiological mechanisms that permit them to concentrate salts within their bodies in a salt-deficient environment; marine fish, on the other hand, excrete excess salts in a hypertonic environment.
Step-by-step explanation:
hope this helps
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK
Answers
Answer:
Answer is b . Hope you like answer
Which step should be performed first when simplifying 18−3+11×2+5?
-3+11
2+5
18-3
11x2
Answers
Answer:
11 x 2
Step-by-step explanation:
By BODMAS rule,
B - Brackets
O - Orders
D - Division
M - Multiplication
A - Addition
S - Substraction
Consider DMAS alone.
Here, there is no division.
So,
Multiplication ( x ) should be the first step.
Select the following item that does not describe a text-based program.
A program that runs through a graphical user interface
A program that runs via a prompt
A program that runs through a command line interface
A program that runs through a shell
Answers
Answer:
A program that runs through a shell
Step-by-step explanation:
Use the graph to estimate the value of y when x = 2.5
Answers
Answer:
y=7
y will equal to 7 when x is 2.5
Find the following product.
(4a +6) (3a? - 3a+6)
(4a + 6) (3a2- 3a +6) =
Answers
Answer:
12a^3+6a^2+6a+36
Step-by-step explanation:
Sana makatulong!
11. There are a total of 30 puzzle pieces. Three
out of 5 are red, the remaining are black. How
many puzzle pieces are black?
Answers
Answer: 2
Step-by-step explanation:
5-3=2
30-5=15
If three out of the five are red and there are a total of 30 puzzle pieces then the number of black puzzle pieces will be 12.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
We'll apply division by Splitting into equal halves or groups, the division may be used to decide how to distribute a dish of cookies evenly among a group.
it is given that there are a total of 30 puzzle pieces three out of 5 are red, and the remaining are black.
From the given condition,
(3/5) of total puzzle pieces = Number of red puzzle pieces
(3/5) × 30 = Number of red puzzle pieces
Number of red puzzle pieces = 18
Total puzzle pieces = Red puzzle pieces + Black puzzle pieces
30 = 18 + Black puzzle pieces
Black puzzle pieces = 30-18
Black puzzle pieces =12
Thus, if three out of the five are red and there are a total of 30 puzzle pieces then the number of black puzzle pieces will be 12.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
#SPJ5
Please help me! Will give brainliest!
Answers
Answer:
6
Step-by-step explanation:
you have to split it up mostly
Given the function f(x) = 6x-x^2,then what is f(x) + 2 as a simplified polynomial
Answers
PLEASE HELP IM STUCK ON THIS ONE
Answers
Answer:
1. 1/200
2. 15/2
3. 11/36
4. 8/5
Step-by-step explanation:
pls help me pls pls pls
Answers
Answer: I helped you. Troll!
the length of a rectangular is 2 m less than twice the width.if the erea of the rectangular is 112m², what is the width
Answers
Is the list of numbers a arithmetic sequence?
26,31,36,41,46,…
Answers
Answer:
g
have a great day ahead
please mark me as the brainliest
Answer:
[tex]31 - 26 = 36 - 31 = 41 - 36 \\ = 46 - 41 = 5 = d \\ yes \: it \: is \: an \: arithmetic \: sequence[/tex]
3
Simplify:1/4 (15 – 6) +3 : 12
A. 2
B. 3
C. 41
D. 5
7
12
Answers
Answer: 5.25 or 5.5 [see note]
Step-by-step explanation:
1/4 (15 – 6) +3 [I'm not clear what is meant by the " : 12," so I left it out.]
1/4 (9) +3
9/4 + 3
2.25 + 3 = 5.25
===
If it is supposed to read
1/4 (15 – 6) +3/12
Then it would be
5.25 + 0.25 = 5.5
(2x+3y)²+(2x-3y)²
a) 4(2x)(3y)
b) 4(2x)(4y)
c) 6(3x)(5y)
d) 2((2x)²+(3y)²)
e) 2((x)²+(y)²)
Answers
Answer:
d) [tex]2 ({(2x)}^{2} + {(3y)}^{2} ) \\ [/tex]Step-by-step explanation:
[tex] {(2x + 3y)}^{2} + {(2x - 3y)}^{2} \\ (2x + 3y)(2x + 3y) + (2x - 3y)(2x - 3y) \\ 2x(2x + 3y) + 3y(2x + 3y) + 2x(2x - 3y) - 3y(2x - 3y) \\ {4x}^{2} + 6xy + 6xy + {9y}^{2} + {4x}^{2} - 6xy - 6xy + {9y}^{2} \\ {4x}^{2} + 12xy + {9y}^{2} + {4x}^{2} - 12xy + {9y}^{2} \\ {4x}^{2} + {9y}^{2} + {4x}^{2} + {9y}^{2} \\ {8x}^{2} + {18y}^{2} \\ 2( {4x}^{2} + {9y}^{2} ) \\ 2( {2}^{2} {x}^{2} + {3}^{2} {y}^{2} ) \\ 2({(2x)}^{2} + {(3y)}^{2}) \\[/tex]
Step-by-step explanation:
d num i think 2((2x)^2+(3y)^2)
There are 31 students in a class and 61.3% of these students passed their math applications test. What number of these students passed their test? Round your answer to the nearest whole number if necessary
Answers
Answer:
31 of 61.3%...
... is equivalent to multiplying them:
31 × 61.3% ≈ 19
(Rounded to a maximum of 2 decimals)
hopefully it’s correct
I need help with this
Answers
Answer:-40 - 180=-220
Step-by-step explanation:
water is 0 so when subtracting it will be negative.
the answer is -220 because of how deep the submarine is.
you will keep subtracting the farther down you go.
Demetria went to her local zoo that featured 4 bear exhibits. If the zoo features 16 exhibits in total, then what percent of the zoos exhibits features bears? Round your answer to the nearest tenth if necessary.
Answers
Given-
Number of exhibits = 4
Total number of exhibits = 16
Solution-
% of zoos exhibits that features bears :-
[tex] \frac{4}{16} \times 100[/tex]
[tex] => 25[/tex]
Therefore, The percentage of zoos exhibits that features bears= 25 %
✍️ By Benjemin ☺️
In a circle of radius 1, what is the length of an arc cut off by a central angle of 2 radians?
Answers
Answer:
What is the length of an arc cut off?
If θ (in radians) is a central angle in a circle with radius r, then the length of the arc cut off by θ is given by s = r θ (θ is in radians).
Step-by-step explanation:
Length of an Arc = θ × r, where θ is in radian.
Length of an Arc = θ × (π/180) × r, where θ is in degree.
what is 4-1/4 help please
Answers
Answer:
3 3/4
Step-by-step explanation:
Because 1 = 4/4
then 4 = 12/4
then you take away 1/4
And get 11/4
Then you Turn that into a mixed number
And get 3 3/4
Decimal form is 3.75
Answer:
15/4 alternate answers - 3 3/4 or 3.75
that's what I got