Find xy if x + y=3, x^2 + y^2 = 5

Answers

Answer 1

Answer:

mark me

Step-by-step explanation:

x+y=3

x=3-y

putting the value of x

in this

x²+y²=5

(3-y) ²+y²=5

9-6y+y²+y²=5

2y²-6y+9-5=0

2y²-6y+4=0

2y²-4y-2y+4=0

2y(y-2)-2(y-2)=0

(2y-2) (y-2) =0

2y-2=0 or y-2=0

y=1 or y=2

so x=2 or 1

so x×y=2×1 or 1×2=2

I HOPE THIS WILL HELP YOU MARK ME BRAINLIEST


Related Questions

Determine the slope, the y-intercept and the
x-intercept of the line 4x - 3y - 42 = 0.

Answers

Answer: 3/4

Step-by-step explanation:

First we need to get the formula into slop form (Y = Mx + B) by moving Y to the other side. This can be done by adding 3y to both sides.

4x - 42 = 3y

or

3y = 4x - 42

Now that we have the formula, we need to divide everything by 3 in order to get 1y.

y = 3/4x - 14

In this formula, M is the slope, meaning your final answer is

3/4

If a car is moving at the speed of 60 miles per hour how many miles would a car travel i 120 minutes

Answers

Answer:

120 miles

Step-by-step explanation:

120minutes= 2hour

2×60÷1=120 (miles)

Allison had 18 postage stamps.She gave 2/9 of the stamps to her mother,and used 1/2 of the remaining stamps to send letters to her friends im Canada.How many stamps are left.
A.2
B.7
C.11
D.17​

Answers

Answer:

C jsjwvwhanwkwjwjjwjwkwjwjw

11 sooooooo answer is c c c c c

Uses the table to answer the question. The table shows the height data, in inches, for two types of dogs.

The difference, in inches, between the mean heights for the two types of dogs is ______ times the variation for either type.

A- 2

B- 3

C- 4

D- 5

Answers

C is the right answer I’m positive

Solve for the unknown angle indicated by the variable m. Show all your steps.

Answers

Answer:

m = 70°

Step-by-step explanation:

∠IHA + ∠AHG = 180   {Linear pair}

∠IHA + 120   = 180

           ∠IHA = 180 - 120 = 60

In ΔABH ,

∠A + ∠AIH + ∠AHI = 180         {Angle sum property of triangle}

50 + ∠AIH + 60 = 180

       ∠AIH  + 110 = 180

              ∠AIH    = 180 - 110

∠AIH  = 70°

BG // CK and AD  is transversal,

m = ∠AIH                {Alternate interior angles}

m = 70°

Find the coordinates of point P along the directed line segment AB so that AP to PB is the given ratio A (4,- 2),B(9, 8); 2 to 3

Answers

Answer:

(7, 4)

Step-by-step explanation:

Using the formula for calculating the midpoint expressed as;

M(X,Y) = {(ax1+bx2)/a+b, ay1+by2/a+b}

X = (ax1+bx2)/a+b

Y = ay1+by2/a+b

Substitute the given coordinate

X = 2(4)+3(9)/2+3

X = 8 + 27/5

X = 35/5

X = 7

Y = 2(-2)+3(8)/2+3

Y = -4+24/5

Y = 20/5

Y = 4

Hence the required coordinates will be at (7, 4)

What is the value of X? (giving brainliest and thanks to all!)

Answers

Answer:

I believe it is A

Step-by-step explanation:

I dont quite remember the formula, but I belive that 30 would be correct because if im remembering correctly the formulas are "a + b = c" and "c - (a/b) = (a/b)

a/b = a or b, depending what they give you

Answer:

45°

Step-by-step explanation:

This is a isosceles triangle and also a right triangle, so it means it have an 90° ingernal angle and the other two internal angles have the same value. Remember that the sum of the internal angles of a triangle is always 180°, so:

180° -90° = 90°

90°/2 = 45°


4(-5)+9+11=12
-4(-5)-9-11=10
5(9)-11=9

True or False

Answers

Answer:

1) false

2)false

3)false

Step-by-step explanation:

it was done by a calculator so

Where is the meidpoint

Answers

What is the midnumber between 1 and 7 ?

( 1 + 7 ) ÷ 2 =

8 ÷ 2 = 4

That was the direction now tell me what is the midpoint of point A and point B ?

midpoint of AB = ( A + B ) ÷ 2

m o AB = ( ( 14 , 15 ) + ( - 2 , 9 ) ) ÷ 2

m o AB = ( ( 14 - 2 , 15 + 9 ) ) ÷ 2

m o AB = ( ( 12 , 24 ) ) ÷ 2

m o AB = ( 12 ÷ 2 , 24 ÷ 2 )

m o AB = ( 6 , 12 )

Please help meeee! Tysm

Answers

The point that lies on the graph of ‘x-12=y’ is (-2,-14)

Find the slope of the line through the pair of points.

L(–9, 6), M(–1, –9)

Answers

Answer:

slope = y2 -y1/x2 -x1

= -9 - 6/-1 - (-9)

= -15/8

= -1.875

Need help and NO LINKS!!!
Special Right Triangles (Radical Answers)

Answers

Answer:

x = [tex]5\sqrt{2}[/tex]

Step-by-step explanation:

We know that;

The triangle is isosceles, and the hypotenuse is x, the un-labeled side is 5.

Therefore we can say;

5² + 5² = x²

25 + 25 = x²

50 = x²

[tex]\sqrt{50}[/tex] = x

We can simplify this further;

[tex]\sqrt{25} * \sqrt{2}[/tex] = [tex]\sqrt{50}[/tex]

[tex]5\sqrt{2}[/tex] = [tex]\sqrt{50}[/tex]

Hope this helps!

What is 50% of 50% of 50%​

Answers

Step 1:

50%= 50/100 = 0.5

Step 2:

50% of 50%= (50×0.5)/100= 0.25

Step 3:

50% of 50% of 50% = (50×0.25)/100= 0.125

Thanks for joining brainly community!

if the triangle shown is rotated 180 degrees about the origin, what are the coordinates of Point F?

Answers

Point F=(3;2) I think so

Please help me figure out the right answer and if you don’t know please don’t answer the question

Answers

Answer:

Figure A and C

Step-by-step explanation:

WILL GIVE BRAINLIEST AND THANKS. find the value of x

Answers

Answer:

180 - 36? I dont exactly remember how to do this

Step-by-step explanation:

Sorry if its not right

What is the diameter of a sphere with a volume of 72 in”, to the nearest tenth of an
inch?

Answers

The required diameter of the sphere where the volume is 72 inches is 5.2 inches respectively.

What is a sphere?

A sphere is a geometrical object that resembles a two-dimensional circle in three dimensions. In three-dimensional space, a sphere is a collection of points that are all located at the same distance from a single point.

The radius of the sphere is denoted by the letter r, and the specified point represents its center.

The sphere is a three-dimensional shape that is sometimes referred to as a circle's second cousin.

A sphere is a solid shape that is circular, without borders.

Balloons, toy balls, and even light bulbs are examples of objects with sphere shapes.

So, the volume of the sphere formula is:

4/3πr³

We know that the volume is 72 inches.

Then calculate as follows:

72 = 4/3πr³

r³ = 72*3/4π

r = 2.58 (Approx)

Rounding off: 2.6 inches

Then the diameter would be:
2.6 * 2 = 5.2 inches

Therefore, the required diameter of the sphere where the volume is 72 inches is 5.2 inches respectively.


Know more about a sphere here:

https://brainly.com/question/22807400

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Correct question:

What is the diameter of a sphere with a volume of 72 in”, to the nearest tenth of an inch?

The height in feet of a golf ball that is hit from the ground can be modeled by the
function f(x)=-16x2+96x, where x is the time in seconds after the ball is hit.
When does the ball reach its maximum height?
A) 3 seconds
B) 144 seconds
C) 96 seconds
D) 6 seconds

Answers

Answer:

6 seconds

Step-by-step explanation:

Find the volume of this cylinder.
Round to the nearest tenth.
17 ft
8ft
[ ? ) ft3
Enter

Answers

Answer:

The answer is 3418.1 ft rounded to the nearest tenth.

Step-by-step explanation:

The total volume of the cylinder can be defined by the Area of circular base * Perpendicular height.

The area of the circular base can be calculated as

[tex]\pi \times {r}^{2} [/tex]

where r is the radius of the circular base, which is 8 ft.

The area of the circular base is

[tex]\pi \times {8}^{2} = 64\pi[/tex]

We also know the height of the cylinder is 17 ft.

Hence, the volume of the cylinder is

[tex]64\pi \times 17 = 1088\pi = 3418.0528...[/tex]

This will be rounded up to 3418.1 with the nearest tenth

4) Find the measure of angle b

Answers

Answer:

43º

Step-by-step explanation:

full circle is 360

b = 360 - 209 - 108

b = 43

ava has 15 apples she gave 2 a way then got 3 apples back what is 15 - 2 + 3 = ?

Answers

Answer:

Hi there user! The correct answer will be 16.

Step-by-step explanation:

15 - 2 + 3 =

13 + 3 =

16

These two triangles are congruent by
AAS
SSS
SAS
ASA

Answers

Answer:

the answer is side angle side (sas)

Answer: SAS

Step-by-step explanation: You know to sides are congruent so the included angle between them must also be congruent.

The sum of 3 and p divided by q?

Answers

Answer:

3+p/q

Step-by-step explanation:

what is 1 1/5 x 3 4/5 x 1

Answers

Answer:

Step-by-step explanation:11/5 x 3 =6.6 4/5 x 1 =0.8

Solve for x. Round to the nearest tenth, if necessary.

Answers

Answer:

ST = x = 1.8 (to the nearest tenth)

Step-by-step explanation:

STU is a right triangle right angled at T with S =61° and hypotenuse SU=3.7 units.

ST = x = SUcos(61°) = 3.7cos(61°) = 3.7*0.48481 = 1.7938

Answer:

The answer is 1.8

Step-by-step explanation:

soh-cah-toa trigonometry. Cos 61=x/3.7. Isolate the variable. 3.7cos61=x. Solve for x. X= 1.793795595 (rounded to the nearest tenth the answer is 1.8)

Colleen is knitting a scarf. For every 45 pieces of blue yarn she uses, she uses 18 pieces of red yard. What equation can be used to represent the proportional relationship between the amount of blue yarn, b, and red yard, r, that Colleen uses when knitting a scarf?

Answers

Given:

For every 45 pieces of blue yarn, Colleen uses 18 pieces of red yard.

To find:

The equation that can be used to represent the proportional relationship between the amount of blue yarn, b, and red yard, r, that Colleen uses when knitting a scarf.

Solution:

We have,

Blue yarn = 45 pieces

Red yarn = 18 pieces

It is given that there is a proportional relationship between the amount of blue yarn, b, and red yard, r, that Colleen uses when knitting a scarf. So,

[tex]\dfrac{r}{b}=\dfrac{18}{45}[/tex]

[tex]\dfrac{r}{b}=\dfrac{2}{5}[/tex]

[tex]r=\dfrac{2}{5}b[/tex]

Therefore, the required equation is [tex]r=\dfrac{2}{5}b[/tex].

In this set of data, would the mean or median be affected more with a data point of 20? Explain.
Here is the data set:
{1, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7}

Answers

Answer:

5 is the median

Step-by-step explanation:

The "median" is the "middle" of the set of numbers. Considering there are 13 total numbers, making it un-even, there can be an equal amount of numbers taken off of each side with a middle number remaining. That middle number will be your median..

PLS HELPPP ASAP
Determine if triangle IJK and triangle LMN are or are not similar, and, if
they are, state how you know. (Note that figures are NOT necessarily drawn to
scale.)

Answers

Yes they are similar! Both share the same angle of 61° then 20x5 is 100 just like 17x5 is 85!!

The triangles are similar, based on the Side-Angle-Side Theorem (SAS).

What is the congruent triangle?

Two triangles are said to be congruent if the length of the sides is equal, a measure of the angles are equal and they can be superimposed.

By definition, since two triangles are similar if the lengths of the corresponding sides are in proportion and their corresponding angles are congruent.

In this case, we can identify that you know two pairs of corresponding sides. Then, we can find in they are in proportion.

Set up that:

In triangle IJK  and LMN

Angle JIK = Angle MLN = 61 degree

Notice that they are in proportion.

LN /  ML= IK /JI

100 / 20 = 85/ 17 = 5

we can also identify that the corresponding angles L and I are congruent because they have equal measure.

Therefore, since we know that two sides are proportionate and the included angles are congruent, we can conclude that the triangles are similar, based on the Side-Angle-Side Theorem (SAS).

Learn more about congruent triangles;

https://brainly.com/question/12413243

#SPJ2

352 divided by what if me 22


Help

Answers

Answer:

16

Step-by-step explanation:

352/22 = 16

16*22 = 352

352/ 16 = 22

help please help please

Answers

Answer:

Angle 1 = 123 degrees

Step-by-step explanation:

i think it’s 123° :))))))
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