X+y=2 và x-y=4 tim x và y

Answers

Answer 1

Step-by-step explanation:

X

[tex]xx - xxyy - yy = 8[/tex]


Related Questions

Express 2.99 x 108 m/s (the speed of light) in decimal notation (i.e., express the number without using scientific notation).
options:
2,990,000,000

299,000,000

Answers

Answer:

Step-by-step explanation:

I think you mean 2.99×10^8, not 2.99×108.

2.99×10⁸ meters per second = 299,000,000 meters per second

Need answer asap the topic is inverses and cxompositions in algebra 2

Answers

Answer:

2nd option

Step-by-step explanation:

To find g(f(x)) , substitute x = f(x) into g(x)

g(x + 3) = [tex]\sqrt{x+3}[/tex] + 7

Answer:

To find g(f(x)) , substitute x = f(x) into g(x)

g(x + 3) = \sqrt{x+3}

x+3

can anyone solve it plzzzz ​

Answers

Answer:

1.A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

2.

Solution given:

We have

Sin²[tex]\theta[/tex]-Cos ²[tex]\theta[/tex]=1

Sin²[tex]\theta[/tex]=1+Cos²[tex]\theta[/tex]

Sin[tex]\theta[/tex]=[tex]\sqrt{1-Cos²\theta}[/tex]

3.

4Tan²[tex]\theta[/tex]+4Cot²[tex]\theta[/tex]-3Tan²[tex]\theta[/tex]-3Cot²[tex]\theta[/tex]

4Tan²[tex]\theta[/tex]-3Tan²[tex]\theta[/tex]+4Cot²[tex]\theta[/tex]-3Cot²[tex]\theta[/tex]

Tan²[tex]\theta[/tex]-Cot²[tex]\theta[/tex]

simplify: 2y + 16 + 2y + 30 + 4y - 13 + 3y - 21

Answers

Answer:

2y + 16 +2y +30 +4y –13 +3y - 21

11y + 12

I hope I helped you^_^

Finding x- and y- intercepts
y = 5х – 6

Answers

Answer:

Below!

Step-by-step explanation:

X intercept

y = 5x - 6

0 = 5x - 6

-5x = -6

divide both sides by -5

x = 6/5 or 1.2  

(1.2, 0)

Y intercept

y = 5x - 6

y = 5(0) - 6

y = -6

(0, -6)

Hope this helps! Best of luck <3

8c + 2(6 - 3c) - 7
How do I simplify this pls help

Answers

Answer:

2c+5

Step-by-step explanation:

Answer:

7c

Step-by-step explanation:

You do PEMDAS.

6-3c is 3c.

so itd be 8c + 2(3c) - 7

then id multiply 3c with 2 so its be6c.

then id add 6c with 8c, and its be 14c. then i subtract it with 7 and get 7c.

……………….pls and thx——————-

Answers

Answer:

14 yards shorter

Step-by-step explanation:

Use Pythagoras' Theorem

a²+b²=c²

16²+63²=4225

√4225= 65yd

The diagonal line (c) is 65 yards long

16 + 63 = 79 yd

It would be 14 yards shorter (79-65)

Which inequality is represented by the graph?

Answers

Answer:

It will be -5≤×≤4

I don't get it- can someone explain

Answers

Answer:

11 4-passenger cars

Step-by-step explanation:

let 'x' represent the number of 4-passenger cars,then 'x-3' represent the number of 6-passenger cars.

92=4x+6(x-3)

92=4x+6x-18

92=10x-18

92+18=10x

110=10x

x=110/10

x=11

Therefore there are 11 4-passenger cars

Would the function ƒ(x) = 4 be considered a step function? Explain your reasoning.

Answers

Hey there! I'm happy to help!

A step function is a function that looks like stairs when you graph it. Normally the end of one line will be graphed as an open circle (less or greater than, not equal to) while the other end would be a closed circle. This allows for a new line of the function to start directly above it without it not being a function (an input cannot have two outputs)

The function f(x)=4 is just a horizontal line as it has a slope of 0 (there is no x on the right side of the equation), so this doesn't resemble a step function.

Have a wonderful day and keep learning! :D

could anyone help me with this answer ill give brainly but if its correct

Answers

Answer:

Linear, positive, strong

Step-by-step explanation:

Association is described as strong (linear) , weak or none(nonlinear).

If you draw a line straight through the points and most of the points are on or near the line then the association is strong. If very few points are near or on the line then the association is weak. If almost none of the points are on the line then there is no association

If you were to draw a line on this graph straight through the points most of the points would be on or near the line therefore there is a strong linear association.

Because the line would be going up and to the right the association would be positive

the sum of 5 times a number and 8 is equal to 9

Answers

Answer:

The unknown number is [tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Let's make the unknown number x.

The sum of 5 TIMES a number (x) & 8 is 9.

Let's write it mathematically.

5x + 8 =9

We are trying to find the unknown number, so let's remove all the numbers from the left side to find x. Minus 8.

5x=1

5x is basically 5 times x, so to find x, we need to divide and from there we can remove 5.

x= [tex]\frac{1}{5}[/tex]

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.

A(1, 1), B(-3, 0), C(-4, -1), D(3, -2)

Answers

Answer:

is this geomtey

Step-by-step explanation:

Make sure to put what kind of maths (geometry algebra ect.) this is so others can meet your needs better. Also might want to put what unit or type of problem this is as well.

HELP!!!!!!!!!!!!!!!!!!!

Answers

Answer:

25 ( 5 width times 5 length)

Step-by-step explanation:

Elias made a polyhedron with 9 edges and 5 faces. Which solid could he have made?

Answers

The polyhedron that Elias could have made is a TRIANGULAR BASED PRISM.

Triangular based prism are as described below:

A triangular-based prism is known to consists of 9 edges and 5 faces as shown in the diagram below.

It is a three-sided prism and also a polyhedron made of a triangular base, a translated copy, and 3 faces joining corresponding sidesThe edges are made up of lines and these lines are the ones that intersect to form faces

Learn more here: https://brainly.com/question/16682058

Answer: c

Step-by-step explanation:

Solve: XC Divided XV. Show your answer as a Roman Numeral.


A. V
B. VI
C. VII
D. VIII

Answers

Answer: B (six or VI)
XC (90) divided by XV (fifteen) is VI (six). I hope this helped you!

Answer:

b

Step-by-step explanation:

smart yes

You order CDs for $14.25 each and the website charges $4.50 for each shipment.
The expression $14.25p + $4.50 represents the cost of p CDs. Find the total cost for
ordering 4 CDs.

Answers

Answer:

$61.50

Step-by-step explanation:

14.25(4) + 4.50

= 57.00 + 4.50

= 61.50

How do you solve part c

Answers

the unit are ???

uyrusbsgsgwggdhxhxvzvzgusjwvwcgzud hi evwtdirvsgjd rgchdvycjdvrudirbhdudvdgdu

if a person invests $290 at 6% percent annual interest, find the approximate value of the investment at the end of 15 years

Answers

$695.00 would be your answer :)

If the lengths of the legs of a right triangle are 4 and 8, what is the length of the hypotenuse?

PLEASE HELP

Answers

Answer:

[tex]4\sqrt{5}[/tex]

Step-by-step explanation:

In order to solve this problem, we can use the pythagorean theorem, which is

a^2 + b^2 = c^2, where and b are the legs of a right triangle and c is the hypotenuse. Since we are given the leg lengths, we can substitute them in. So, where a is we can put in a 4 and where b is we can put in an 8:

a^2 + b^2 = c^2

(4)^2 + (8)^2 = c^2

Now, we can simplify and solve for c:

16 + 64 = c^2

80 = c^2

c = [tex]\sqrt{80}[/tex]

Our answer is not in simplified radical form because the number under is divisible by a perfect square, 16. We can divide the inside, 80,  by 16, and add a 4 on the outside, as it is the square root of 16:

c = [tex]4\sqrt{5}[/tex]

The length of the hypotenuse in the given right triangle, with legs measuring 4 and 8, is approximately 8.94.

To find the length of the hypotenuse in a right triangle, we can use the Pythagorean theorem. According to the theorem, in a right triangle, the square of the hypotenuse's length is equal to the sum of the squares of the lengths of the other two sides.

In this case, let's label the lengths of the legs as 'a' and 'b', with 'a' being 4 and 'b' being 8. The hypotenuse, which we need to find, can be represented as 'c'.

Applying the Pythagorean theorem, we have:

[tex]a^2 + b^2 = c^2[/tex]

Substituting the given values:

[tex]4^2 + 8^2 = c^2[/tex]

16 + 64 = [tex]c^2[/tex]

80 = [tex]c^2[/tex]

To find the length of the hypotenuse 'c', we need to take the square root of both sides:

√80 = √ [tex]c^2[/tex]

√80 = c

The square root of 80 is approximately 8.94.

Therefore, the length of the hypotenuse in the given right triangle, with legs measuring 4 and 8, is approximately 8.94.

To know more about  hypotenuse , here

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if line y bisects line AC, AB = 4 - 5x, and BC = 2x+25, find AC

Answers

Answer:

4-5x = 2x+25

-5x+4 = 2x+25

-7x = 21

x = -3

4 - 5(-3)

4 + 15

19

AC = 2 x 19

AC = 38

Let me know if this helps!

When the net is folded up, which sides will touch?

A. C and G
B. M and G
C. D and F
D. E and L

Answers

Answer:

The correct answer is

D) e and l

-5r - 3r = ?
pls help!!! ​

Answers

Answer:

-8r

Step-by-step explanation:

subtract -3 from -5 to get -8. since both integers share a variable, the answer is just -8r

[tex]\\ \sf\longmapsto -5r-3r[/tex]

[tex]\\ \sf\longmapsto (-5-3)r[/tex]

[tex]\\ \sf\longmapsto (-8)r[/tex]

[tex]\\ \sf\longmapsto -8r[/tex]

Which is your required answer

What is the solution to the inequality 21x - 12x _< 54

Answers

Answer:

if the inequality symbol is ≤ then the answer is x ≤ 6. If the inequality symbol is < then the answer is x < 6.

Step-by-step explanation:

Hope this helped

Which of the following is a rational number?
square root 97square root 98, square root 99, square root 100

square root 97
square root 98
square root 99
square root 100

Part A: Find a rational number that is between 5.2 and 5.5. Explain why it is rational. (2 points)

Part B: Find an irrational number that is between 5.2 and 5.5. Explain why it is irrational. Include the decimal approximation of the irrational number to the nearest hundredth. (3 points)

Answers

Answer:

Square root of 100.  

Step-by-step explanation:

Step-by-step explanation:

We can write 10 as a fraction 10/1, therefore,[tex]\sqrt{}[/tex]100   is a rational number.

Part A : A rational no. between 5.2 and 5.5 is 5.3.  

It is rational because it can be expressed in the form  

p/q where p and q are integers and q is not equal to 0, which is 53/10

Part B: A rational no. between 5.2 and 5.5 is 5.29150262213

An irrational number between 5.2 and 5.5 is 5.29150262213. It is irrational because there is no pattern that repeats and it cant be written as a fraction of two whole numbers.

Answer:

Step-by-step explanation:

Square root of all prime numbers is irrational.

97 is an prime number. So √97 is an irrational number.

√98 = [tex]\sqrt{2*7*7}=7\sqrt{2}[/tex]  is an irrational number.

[tex]\sqrt{99}=\sqrt{3*3*11} =3\sqrt{11}[/tex] is an irrational number

√100 = 10 is a rational number.

Part A:

5.3 is a rational number.

Rational can be written in p/q form and when divided the result will either terminating decimal or non terminating repeating decimal

Part B:

5.3020050......

Irrational numbers are non terminating non repeating numbers

how do i solve 8/12 = 6/x

Answers

Answer:

x = 9

Step-by-step explanation:

8/12 = 6/x

We can use cross products

8*x = 12*6

8x = 72

Divide by 8

8x/8 = 72/8

x = 9

Simplify the following expression: 5(3x) - 3(7x - 2)
�� 6x + 6 �� 36x + 6
�� 6 - 6x �� 6 - 36x

Answers

Answer:

The answer is in the screenshot -6x-6

Step-by-step explanation:

Point M is the midpoint of AB. The coordinates of point A are (-7, 1) and the coordinates of M are (-2,2).
What are the coordinates of point B?

Answers

Answer:

B = (3.3)

Step-by-step explanation:

In the following diagram, {HI}


start overline, H, I, end overline is parallel to {JK}


start overline, J, K, end overline.

What is the measure of

Angles are not necessarily drawn to scale.

Answers

Sum of interiors =exterior angle

[tex]\\ \sf\longmapsto <I=56+66[/tex]

Add both

[tex]\\ \sf\longmapsto <I=122[/tex]

Now

[tex]\\ \sf\longmapsto I+x=180[/tex]

[tex]\\ \sf\longmapsto x+122=180[/tex]

[tex]\\ \sf\longmapsto x=180-122[/tex]

[tex]\\ \sf\longmapsto x=58[/tex]

The measure of x° is 58° .

What are corresponding angles?

The corresponding angles definition tells us that when two parallel lines are intersected by a third one, the angles that occupy the same relative position at each intersection are known to be corresponding angles to each other.

What is corresponding angles theorem?

According to the corresponding angles theorem, the statement “If a line intersects two parallel lines, then the corresponding angles in the two intersection regions are congruent”  

According to the question

In the triangle AHI  

∠A = 66°

∠H = 56°

By using sum of angle of triangle = 180°  

∠A + ∠H + ∠I  = 180°  

66° + 56° + ∠I  = 180°

∠I  = 180° - 122°

∠I  = 58°

As , given HI is parallel to JK

Now,

According to the corresponding angles theorem

If a line intersects two parallel lines, then the corresponding angles in the two intersection regions are congruent .

Therefore,

∠I  = ∠K = x°  

i.e

x° = 58°

Hence, the measure of x° is 58° .

To know more about corresponding angles theorem here:

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Enter the repeating digit.

Answers

Answer:

Does the answer help you?

Answer:

6

Step-by-step explanation:

Dividing 2 by 3 gives you a repeating decimal of 0.6666...

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