Answers
Answer:
option b is the correct answer.
Explanation is beloe
Step-by-step explanation:
x²+y²=9
xy=8
x+y=?
Now,
(x+y)²=x²+2×x×y+y²
(x+y)²=x²+2xy+y²
(x+y)²=x²+y²+2xy
(x+y)²=9+2×8
(x+y)²=9+16
(x+y)²=25
(x+y)²=5²
x+y=±5
I hope it helped U
stay safe stay happy
Step-by-step explanation:
[tex]we \: have \: {(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy \\ here \: {x}^{2} + {y}^{2} = 9 \\ xy = 8 \\ then {(x + y)}^{2} = 9 + 2 \times 8 \\ {(x + y)}^{2} = 9 + 16 = 25 \\ {(x + y)}^{2} = 25 \\ x + y = \sqrt{25} = +/-5 \\ thank \: you[/tex]
Related Questions
1. If x = y and x + 2y = 6 then find value of 'y'.
I don know
Answers
hi <3
you can solve this by substituting one equation into the other.
in this case, it is more simple to substitute the first equation into the second, as it is already arranged into a simple format
so:
y + 2y = 6
now you can simplify:
3y = 6
divide both sides by 3 to get your answer:
y = 2
hope this helps <33
What are the solutions of the equation? X^2-16/25=0
x= 4/25 and x =-4/25
x = 8/25and x =-8/25
x = 16/25and x = -16/25
X =4/5 and x=-4/5
Answers
Answer:
x=4/5 ,x=-4/5
Step-by-step explanation:
Equation:
x²-16/25=0
x²=16/25
x=+-√16/25
x=+-4/5
Note:if you need to ask any question please let me know.
Bernadette is a goalie and blocks the goal 20 out of 32 times. What is the experimental probability that Bernadette will block the goal on the next kick? Write your answer as a fraction, decimal, and percent.
Answers
Answer:
5/8 or 0.625 or 62.5%.
Step-by-step explanation:
20/32 Divide top and bottom by 4:-
= 5/8.
evaluate (3x)(5y) for x=-1, y=2
Answers
Answer:
-30 or 2 i dunno.
Step-by-step explanation:
[tex](3x)(5y) = (3 \times - 1)(5 \times 2) \\ - 3 \times 10 = - 30 \\ \\ or \: An \: other \: way \\ \\ (3x)(5y) = 15xy \\ 15( - 1)(2) = - 30[/tex]
I hope I helped you^_^
How do you solve this problem?
Answers
Sorry can't help
can't see the whole question
An Olympic diver jumps off of a platform that is 10 meters high. The diver goes 2 meters underwater after a dive. How far is it from the starting point at the top of the platform to the depth under water?
Answers
Answer:
12 meters far.
Step-by-step explanation:
The question translates to 10+2. The word problem states that the height of the platform is 10 meters. That means we can say that he'd have already traveled 10 meters down when he dived. And the problem also states that the diver goes two meters under the water, meaning that he had traveled 2 meters, in addition to the 10 meters. And so, we add the 10 and 2 to get 12 meters in total.
36 + 14 = 2(18+▯)
What factor is missing from the equation
Answers
evaluate the expression when b=5
Answers
Answer:
9. [tex]35^{2}[/tex] or 1225
12. [tex]15^{2}[/tex] or 225
Step-by-step explanation:
Put 5 instead of b
9. [tex](7b)^{2}[/tex]
= [tex](7 * 5)^{2}[/tex]
= [tex]35^{2}[/tex] or 1225
12. [tex](3b)^{2}[/tex]
= [tex]( 3 * 5)^{2}[/tex]
= [tex]15^{2}[/tex] or 225
Use the following conversions to answer the question.
60 seconds = 1 minute
60 minutes = 1 hour
24 hours = 1 day
How many minutes are there in a week?
A. 420
B. 1,400
C. 10,080
D. 604,800
Answers
Answer:
C. 10,080
Step-by-step explanation:
There are 60 minutes in an hour, therefore 60 * 24 = minutes in a day and, 60 * 24 * 7 = minutes in a week, so 60 * 24 = 1440. and 60* 24 * 7
→
1440 * 7 = 10080 minutes in a week.
60•24=1,440
1,440•7=10,080
what is 63 divided by 1000
Answers
Answer:
0.063
Step-by-step explanation:
0.063
Hope it helps:
13. (x + 5) +(4.x - 7)
+
Answers
Answer:
[tex]5x - 2[/tex]
Step-by-step explanation:
[tex](x + 5) + (4x - 7)[/tex]
[tex]x + 5 + (4x - 7)[/tex]
[tex]x + 5 + 4x - 7[/tex]
[tex]5x + 5 - 7[/tex]
[tex]5x - 2[/tex]
URGENT. I NEED TO DO IT
Answers
Answer:
[tex]25x +10 \\ 25x \\ are \: the \: exprassion \\ thank \: you[/tex]
Answer:
2nd option and last option
Step-by-step explanation:
the first option is an equation: it has a solution.
the second option is an expression, and follows the criteria of an expression (can be made of co-effecients, symbols, operations, numbers, ect.), so it is one of our answers.
the third option is an equation since it has the equal sign, and thus, has a solution.
the fourth option is simply a number- a value. it does not fit as an equation (no solution) or an expression (can be made of co-effecients, symbols, operations, numbers, ect.)
lastly, our fith option is an expression. it is a coefficient (a multiplication problem between a known value and a variable). this is also one of our last answers.
HELP ME HELP ME
What is the slope of the line?
Answers
Or it could be 1/2 I am not that sure
Someone correct me if I am wrong
But I think it is - 1/2
if demand function is Qd=150+10p and supply function is Qs=300-2p, find the equilibrium price.
Answers
Answer:
[tex] qd = qs[/tex]
150+10p=300-2p
10p+2p=300-150
Step-by-step explanation:
12p=150
P=150÷12
P=12.5
The equilibrium price is 12.5 or 13
HELPP its hard this is too hard for Shay ( my name)
Answers
Answer:
ok
Step-by-step explanation:
yeet
WRITE Math Consider 7 X 10 x 10 x 10 x 10.
Write a pattern to find the value of the expression.
Answers
Answer:
I dont know if I'm wrong but I think its
Step-by-step explanation:
7×10=70
70×10=700
700×10=7000
7000×10=70000
I MIGHT BE WRONG AND IF I AM IM SORRY
-2y-2 pls solve
pls hard for me
Answers
Answer:
−2(y+1)
Step-by-step explanation:
factor ..................
4. Triangle SRT is shown.
Session 1
104
9+
8+
77
6+
5+
S
4-
3+
T
2+
1+
R
0
2
3
4
6
7 8
9 10
Choose the correct equation or phrase to fill in each blank in the
paragraph. For each blank, fill in the bubble before the equation or
phrase that is correct.
The vertices of ASRT are S (1,4), R (2, 2) and T (1, 3). A reflection across
the line
[x = 4 x = 6 © y = -x + 5 y = -x + 6)
and then across the line
[ y = 6 y = 8 y = -x + 10
y = -x + 12) is the same as a translation of 4 units to the right and
4 units up because the lines are
[ congruent parallel
perpendicular similar).
0
Answers
Answer:
jeopardise is the shape for a new one and a half way back home from work answer to your friend request I think we will have a better deal than the other and it will probably be worth a few more weeks and more for free if marbles cost me a fortune in the proportion I have any more goal 6 to be do the amount best money we you any of our country on gara cha are in 7th July yu 28th yu38 and I will also have to pay for free diamond app and culture of your responsibility and to get the money back for the establishment that you obeserved want for your birthday so I the money for the money in my house telephoto and the money is going out for free ff and we have not book yet and I don't know what to 2nd look for at all of these and 3IBB on gar 2
The midpoint of a segment can be found using the formulas for a directed line segment, x = (x2 – x1) + x1 and y = (y2 – y1) + y1. When using these formulas to find a midpoint, which is true?
Answers
The midpoint of a segment can be found using the formula as follows:
mid point = (x₁ + x₂ / 2 , y₁ + y₂ / 2)
How to find the mid point of a segment?The midpoint is the middle point of a line segment.
In other words, the midpoint of a segment is the point on that line segment that divides the segment into two congruent segments.
The mid point of a segment can be represented mathematically as follows:
Hence,
mid point = (x₁ + x₂ / 2 , y₁ + y₂ / 2)
learn more on midpoint here:https://brainly.com/question/17192794
#SPJ1
3 hundreds + 7 hundreds in standard form
Answers
1=v/7-2 solve and right the equation of how u got that answer
Answers
Answer:
v = 21
Step-by-step explanation:
1 = v/7 - 2
~Add 2 to both sides
3 = 1/7v
~Multiply 7 to both sides
21 = v
Best of Luck!
Solve the following numerical problems. a. If a bus travels 6 km in 10 minutes, what distance does it travel in 1 secon
Answers
Answer:
10 meters
Step-by-step explanation:
what fraction of the Earth's surface would be covered by the surface of the moon,if the radius of the Earth is 6,378km and the radius of the moon is 1.741km?
Answers
Answer:
3031081 / 40678884
Step-by-step explanation:
To solve this, we can find the surface area of the moon and Earth, and then see how much the moon covers the Earth. The surface area of a sphere is equal to 4πr², so the radius of the Earth is
4πr² = 4 * π * 6378²
and the radius of the moon is
4πr² = 4 * π * 1741²
To figure out how much of the Earth's surface that the moon covers, we can implement a ratio of moons:Earth. This will give us an understanding of how many moons go inside one Earth. We thus have
(4 * π * 1741²) : ( 4 * π * 6378²) = (4 * π * 1741²) / ( 4 * π * 6378²)
cross out the 4 * π in the numerator and denominator
1741²/6378²
Next, we want to make the denominator 1, as that gives us 1 Earth. To do this, we can divide both the numerator and denominator by 6378². Because we are applying the same expression to both the numerator and denominator, this is essentially multiplying the fraction by 1, keeping it the same. We thus have
(1741²/6378²)/(6378²/6378²)
≈0.0745/1
≈ 0.0745
To put this in a fraction, we would have
(1741²/6378²)/1
= (1741²/6378²)
= 3031081 / 40678884
Shellie buys a loaf of bread fo $2.99, a gallon of milk for $3.49, and a pack of
lunchmeat for $5.99. The sales tax is 8%. How much will Shellie's total bill be,
including the sales tax? Round your answer to the nearest cent.
Answers
Answer:
$13.47
Step-by-step explanation:
2.99 + 3.49 +5.99 + 12.47.
12.47 x 0.08 = 1.
12.47 + 1 = 13.47
what is integration....
Answers
blending , fusing , inclusion
Multiply (2a-5)(4a-7) Simplify your answer
Answers
[tex](2a - 5)(4a - 7)[/tex]
[tex]2a(4a - 7) - 5(4a - 7)[/tex]
[tex]8 {a}^{2} - 14a - 20a + 35[/tex]
[tex]8 {a}^{2} - 34a + 35[/tex]
Step-by-step explanation:
( 2a - 5 ) ( 4a - 7 )
2a ( 4a - 7) - 5 ( 4a - 7 )
8a² - 14a - 20a + 35
8a² -34a + 35
order these numbers in ascending order. -11, 11.8 9.42 ,10
Answers
Answer:
-11,9.42,10,11.8
-11<9.42<10<11.8
Answer:
I think the answer is
-11, 9.24 ,10, 11.8
HELP I NEED SOMBODEY HELP NOT JUST ANYONE JK HELP ME PLSSSSS
Answers
Supplementary angles are pairs of angles whose measures total 180º. Determine the measure of
supplementary to an angle with a measure of 92°
Answers
Hi there!
»»————- ★ ————-««
I believe your answer is:
88°
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
As mentioned in the question, supplementary angles add up to 180°.⸻⸻⸻⸻
[tex]\boxed{\text{Setting Up An Equation...}}\\\\a + 92 = 180\\----------\\ a - \text{Unknown angle measure.}\\----------\\\rightarrow a + 92 - 92 = 180 - 92\\\\\rightarrow \boxed{ a = 88}[/tex]
⸻⸻⸻⸻
The unknown angle measurement should be 88°.
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
the density of oxygen is 0.0001429 grams per cubic centimeter.how is this number written in scientific notation?