please solve and explain !!!

Answer:

[tex]10x + y = 10 (1)\\ 11x + 11y = 1001(2) \\ from \: equation \:(1) \: y = 10 - 10x \\ 11x + 11(10 - 10x) = 1001 \\ 11x + 110 - 110x = 1001 \\ 11x - 110x = 1001 - 110 \\ - 99x = 891 \\ \frac{ - 99x}{ - 99} = \frac{891}{ - 99} \\ x = - 9 \\ y = 10 - 10x \\ y = 10 - 10( - 9) \\ y= 10 + 90 \\ y = 100[/tex]

Step-by-step explanation:

Hope that this is helpful.

Have a great day.

Answer:

B

Step-by-step explanation: a paper is so thin it can only be expressed in millimeters

Answer:

0.001 m

Step-by-step explanation:

1 m = 1000 mm

1 mm

= 1 / 1000

= 0.001 m

Answer:

on 60!! Hope this help's

Step-by-step explanation:

Answer:

625

Step-by-step explanation:

625 I believe. If u do -5(-5) that’s 25 bc there’s four -5’s you will be left with 25(25) with is 625

Answer:

yes, because 18-6 is 12, which is still greater than 10

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let's simplify step-by-step.

x−41611y−3−2−10

=x+−41611y+−3+−2+−10

Combine Like Terms:

=x+−41611y+−3+−2+−10

=(x)+(−41611y)+(−3+−2+−10)

=x+−41611y+−15

Answer:

=x−41611y−15

Answer:

30 is answer bro

Step-by-step explanation:

hope it wI'll help u

Sorry dude, diagram not visible, send a clear pic so I will help uh.

Answer:

the nth term of a sequence is usually denoted by the symbole an . a1 =2 the second term is a2=6 and so....

A term is multiplied by 3 to get the next term . if you know the formula for the nth term of a sequence of n , then you can find any term .

formula : an =a1 + ( n - 1 ) d

hope its helpful . Good luck ;)

Answer:

2) Yes, because every input (x) has an individual output (y)

6) No, because there is an input that has 2 outputs

8) No, because there is an input that has 2 outputs

11) (I am unsure, but I think it is) No, there is no inputs

12) No, because there is an input that has 2 outputs

Step-by-step explanation:

For functions, every input needs to have only one output

Answer:

The GCF of 24 and 36 is 12

Step-by-step explanation:

Answer:

0.25

Step-by-step explanation:

Answer: 0.25

Step-by-step explanation: take 100 divide by 2 get 50 so divide by 2 get 25 make 25 a decimal and u get 0.25 ( hope this helps!)

Answer:

Find the product of the exponents...  The third v\choice is the answer which is C.   Happy to Help :)

(W^c)^d = W^c•d  

                                                             Brainlyist please!

Step-by-step explanation:

Answer:

f(x) = 2(x - 2)² - 1

Step-by-step explanation:

Given the vertex, (2, -1) and the point, (0, 7), we can plug these values into the vertex form of the quadratic function:

f(x) = a(x - h)² + h

where:

vertex = (h, k)

a = determines whether the graph opens up or down, and the wideness or narrowness of the parabola.

h = determines how far left or right the parent function is translated.

k = determines how far up or down the parent function is translated.

We could substitute the given values into the vertex form, and solve for the value of "a":

f(x) = a(x - h)² + h

7 = a(0 - 2)² - 1

7 = a(-2)² - 1

7 = a(4) - 1

Add 1 to both sides:

7 + 1 = a(4) - 1 + 1

8 = 4a

Divide both sides by 4 to solve for a:

8/4 = 4a/4

2 = a

Since a = 2, and the vertex = (2, -1) then we could plug this value into the given function:

f(x) = 2(x - 2)² -1

Attached is a screenshot of the graph where it contains the given points.

Please mark my answers as the Brainliest, if you find my explanations helpful :)

Based on the information given, the required equation of parabola will be y= -3x² - 14x + 12.

The parabola passes through the points (-1, 23), (1, -5), (3, -57). Let the equation of the parabola be y = ax² + bx + c.

For point (-1, 23), this will be:

23 = a(-1)² + b(-1) + c

23 = a - b + c ..... equation i

For point (1, -5), this will be:

-5 = a(1)² + b(1) + c

-5 = a + b + c .... equation ii

For point (3, -57), this will be:

-57 = a(3)² + b(3) + c

-57 = 9a + 3b + c .... equation iii

From equation i, 23 = a - b + c

Therefore, c = 23 - a + b .... equation iv

Substitute c into equation ii

-5 = a + b + 23 - a + b

-5 = 2b + 23

2b = -23 - 5.

2b = -28

b = -28/2 = -14

Substitute c into equation iii

-57 = 9a + 3b + 23 - a + b

-80 = 8a + 4b.

-80 = 8a + 4(-14)

-80 = 8a - 56

8a = -80 + 56

8a = -24

a = -24/8 = -3

Therefore, the value of c will be:

c = 23 - a + b

c = 23 -(-3) + (-14)

c = 23 + 3 - 14

c = 12

In conclusion, the required equation of parabola will be y = -3x² - 14x + 12.

Learn more about equations on:

https://brainly.com/question/4148030

Answer:

30

Step-by-step explanation:

i think it is the or you wrong

Answer:

[tex]8 \leqslant x - ( - 14) \\ 8 \leqslant x + 14 \\ 8 - 14 \leqslant x + 14 - 14 \\ - 6 \leqslant x \\ x \geqslant - 6[/tex]

___o__o__

[tex]31 \geqslant b - ( - 18) \\ 31 \geqslant b + 18 \\ 31 - 18 \geqslant b + 18 - 18 \\ 13 \geqslant b \\ b \leqslant 13[/tex]

__o__o__

[tex] - 5 < n + ( - 1) \\ - 5 < n - 1 \\ - 5 + 1 < n - 1 + 1 \\ \\ - 4 < n \\ n > - 4[/tex]

I hope I helped you^_^

Answer:

30

Step-by-step explanation:

1. The exterior angle theorem states that the two opposing (in terms of the exterior angle) interior angles of a triangle are congruent to the exterior angle. This means that m∠1 (x) + 90 = 120. Now, we just have to solve for x.

2. (Solving)

Step 1: Subtract 90 from both sides.

Step 2: Check if solution is correct.

Therefore, m∠1 = 30 degrees.

Answer:

∠ 1 = 30°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

120° is the exterior angle of the left triangle , then

∠ 1 + 90° = 120° ( subtract 90° from both sides )

∠ 1 = 30°

Answer:

36 and 49

Step-by-step explanation:

Please mark me as brainlyest

Answer:

42 and 48

Step-by-step explanation:

since the square root of 42 is 6.48

and the square root of 48 is 6.92

Both of these numbers fall between 6 and 7

Answer:

0.38 for anyone that saw my last answer it was wrong sorry

Answer:

x = 15

Step-by-step explanation:

3x - 7 =38

3x = 38+7

3x = 45/3

x = 15

The correct coefficient of x is 5 and the correct equation is 5x-7=38.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The given equation is 3x-7=38.

Solution to given equation is

3x=38+7

3x=45

x=15

The teacher say the answer is 6 less than the answer she found.

Which is x=9

The teacher says that Joan copied the coefficient of x incorrectly

If equation is 5x-7=38

5(9)-7=38

38=38

Therefore, the correct coefficient of x is 5 and the correct equation is 5x-7=38.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

Solving the quadratic equation, it is found that the duck was underwater for two seconds.

The path of the duck after x seconds is modeled by:

[tex]y = 2x^2 - 4x[/tex]

It is a concave up parabola, thus, the negative values of y, when he is underwater, are between the roots.

To find the roots:

[tex]y = 0[/tex]

[tex]2x^2 - 4x = 0[/tex]

[tex]2x(x - 2) = 0[/tex]

[tex]2x = 0 \rightarrow x = 0[/tex]

[tex]x - 2 = 0 \rightarrow x = 2[/tex]

2 - 0 = 2, thus, the duck was underwater for two seconds.

A similar problem is given at https://brainly.com/question/25181401

Answer:

yes, it is a right triangle

Step-by-step explanation:

it follows the pythagorean theorem

if you were to plug in the numbers, it would work

a^2 + b^2 = c^2

6^2 + 8^2 = 10^2

36 + 64 = 100

hope this helps :)  

Answer:

Y = 58

X = 66

Step-by-step explanation:

So the markers mean that those sides of the triangle are congruent. Because of this, we know that the angles opposite from those sides are equal as well.

In the big triangle, Y will be equal to the empty angle. You can then use:

180 = 64 + 2*Y

Then, solving for Y, you get:

Y = (180-64)/2

Y = 58

You can use the same idea for the smaller triangle. The empty angle will be the same as the angle marked as 57.

180 = 57*2 + X

Then, solving for X, you get:

X = 180 - 57*2

X = 66

Answer:

-5a + 23

Step-by-step explanation:

Step 1: Distribute.

Step 2: Combine like terms.

Therefore, the answer is -5a + 23.

Answer:

−5+23

Step-by-step explanation:

3-5+20

23-5

-5+23

Answer:

no

Step-by-step explanation:

L bozo

Answer:

11 : 4

12 : 4 / 4

13 : 6/6

14 : 12 / 4

15: 9/3

16: 4/4

17: 15/5

18: 6/2

19: 10/5

20: 6/6

Answer:

they are both right

Step-by-step explanation:

the truth value is that 10 is higher than 7 or 5 (not sure if this is what you needed)

Answer:

Step-by-step explanation:

1.25, -0.5, -5.05