Someone please help me out!!

Answer:

let first equation be  y=x^2-14x+23

second equation be y=-3x+5

now substitute the vale of y in equation second

y=-3x+5

x^2-14x+23=-3x+5

x^2-14x+3x=5-23

x^2-11x=-18

x^2-11x+18=0

x^2-(9+2)x+18=0

x^2-9x-2x+18=0

x(x-9)-2(x-9)=0

(x-2)(x-9)=0

either x-2=0                                        Or, x-9=0

x-2=0

x=0+2

x=2

x-9=0

x=0+9

x=9

therefore x=2,9

Step-by-step explanation:

-

Answer:

(2, - 1 ) and (9, - 22 )

Step-by-step explanation:

Given the 2 equations

y = x² - 14x + 23 → (1)

y = - 3x + 5 → (2)

Substitute y = x² - 14x + 23 into (2)

x² - 14x + 23 = - 3x + 5 ( subtract - 3x + 5 from both sides )

x² - 11x + 18 = 0 ← in standard form

(x - 2)(x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

x - 9 = 0 ⇒ x = 9

Substitute these values into (2) for corresponding values of y

x = 2 : y = - 3(2) + 5 = - 6 + 5 = - 1 ⇒ (2, - 1 )

x = 9 : y = - 3(9) + 5 = - 27 + 5 = - 22 ⇒ (9, - 22 )

Answer:

I think that number one is 26, two is -4, and three is -4

Step-by-step explanation:

To solve for number one replace 8 with (x) so 3(8) + 2. 3 x 8 = 24 and 24+2 = 26

Numbers 2 and 3 appear to be the same problem so just do 3(-2) + 2 (Because you replace the number with the x) 3(-2) = -6 + 2 = -4!

I hope that helped!

Answer: Decompose means the opposite, to take apart

Step-by-step explanation: In this lesson, the words composition and decomposition are used to describe how irregular figures can be separated into triangles and other polygons. The area of these parts can then be added together to calculate the area of the whole figure.

Answer: 195,944 bicycles

Step-by-step explanation:

First find the number of bicycles sold in August.

August sales - July sales - 9,152

= 61,753 - 9,152

= 52,601 bicycles

The number of bicycles sold in 3 months is:

= June sales + July + August ,

= 81,590 + 61,753 + 52,601

= 195,944 bicycles

Answer:

40079 Km

Step-by-step explanation:

La circunferencia de la tierra está dada por;

C = 2πR

Dónde;

R = radio de la tierra

Tenga en cuenta que;

R = D / 2

Por eso;

C = 2πD / 2

C = πD

C = 3.412 * 12756 kilómetros

C = 40079 Km

Answer:

I believe it is 2 3/8 if not I'm sorry for being wrong

Answer:

3 1/2

Step-by-step explanation: I took the test. I hope this helps! (it's right please give brainliest)

Answer:

First model gets the equation: y = 2 . 2^z

Second model gets the equation: y = 4^z

Third model gets the equation: y: = 4 . 2^z

Answer:

I don't know lol

Step-by-step explanation:

I feel like I know but I can't put my finger on it \\

Answer:

I think you need to combine the equations, which would end with 26x - 2, and to solve for x just isolate it by adding to the other side which would look like 26x = 2

Then divide 26 on both sides, 26x/26 = 2/26

You should end with x = 1/13

Answer:it's A

Step-by-step explanation:

Answer:

3 hours

Step-by-step explanation:

3x75= 225   so you add 225 to 220 and then you get 425    so for every 3 hours he charges 75 dollars

Step-by-step explanation:

Let x = # of hours work done on the car

The inequality can written as

425 =< 75x + 200

where 425 represents the minimum cost for Hudson and 75 is the repair rate per hour charged by the mechanic. Solving this inequality, we find that

225 =< 75x

or

x >= 3

This means that the mechanic will take at least 3 hrs to work on his car.

Answer:c

Step-by-step explanation:the answer is c

Answer:

11.5 inches

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer:

f(-2) = 3.

Step-by-step explanation:

Reading off the graph, f(-2) = 3.

Step-by-step explanation:

diameter of cylinder is 48m

radius= diameter/2

Answer:

24 meters

Step-by-step explanation:

1. Radius is half of a diameter

2. d = 48 meters

3. r = d/2 = 48/2 = 24 meters

Answer:

x=1 I believe

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The number of combinations of n objects taken r at a time is determined by the following formula: C(n,r)=n!/(n−r)!

Answer: The answer is A n!/r!(n-r)!

search it up

Answer: 2 ounces

Step-by-step explanation:

1 pound = 16 ounces

1/12= 0.0833333

if you multiply 0.0833333 by 16, youll get 1.3333

therefore for 1/12 pounds you have 1.333 ounces

and it’s obvious that 2 ounces is greater than 1.3333 ounces

The greater is the 2 ounces.

We have to determmine which one is grater from 1/12 and 2.

1 pound = 16 ounces

We have 1/12= 0.0833333.

Now  multiply 0.0833333 by 16, we get 1.3333.

Therefore for 1/12 pounds you have 1.333 ounces.

Therefore 2 ounces is greater than 1.3333 ounces.

To learn more about the ounces visit:

https://brainly.com/question/13518828

Answer:20

Step-by-step explanation:

Cause diameter equals C/3.14 so that means to divide it

Answer:

It is a square.

Background:

With this, lets find the distance between each of the shape's points, in order to find which shape it is.

Here's the distance formula, its a bit overkill for what you're doing right now, but it may help you with questions later on.

d=√(x2​−x1​)2+(y2​−y1​)2

Process:

​So with this, compare the distance between each of the points. With Point A, it is (3, 6) with Point B it is (3,3). The change between these two points is down 3.

Next, with Point B (3,3) and Point C (6,3). The change between these two points is right 3.

Then, with Point C (6,3) and Point D (6,6). The change between these two points is up 3.

Last, with Point D (6,6) and Point A (3,6). The change between these two points is left 3.

Reasoning:

From this, we can see that all of the distance lengths are 3 units and that each of them create 90 degree angle turns*.

*You can find this by noting that the total amount of a rotation is 360 degrees, so when you change walking from up to the right, you are turning 90 degrees to do so.

Answer:

With this information in mind, it can be named a square given the definition of square:

"A regular quadrilateral, which means that it has four equal sides and four equal angles."

https://en.wikipedia.org/wiki/Square

Answer:

C:15/36 + 6/36 + 1/36 + 1/36

Step-by-step explanation:

The expression below shows two fractions being added. 7/12 + 1/18

7/12 + 1/18

Lowest Common Denominator = 36

3 × 7 + 2 × 1/36 = 21 + 2/36

= 23/36

We solve the given options to find the correct answer

A:5/6 + 2/6 + 1/6 + 1/6 +1/6

= Lowest common denominator = 6

= 5 + 2 + 1 + 1 + 1/6 = 10/6 = 1 4/6 = 1 2/3

Option A is wrong

B: 5/30 + 1/30 + 1/30 + 1/30

Lowest common denominator = 30

5 + 1 + 1 + 1/30 = 8/30 = 4/15

Option B is wrong

C:15/36 + 6/36 + 1/36 + 1/36

Lowest common denominator = 36

15 + 6 + 1 + 1/36 = 23/36

Option C is correct

D:30/72 + 12/72 + 2/72 + 1/72

Lowest Common Denominator = 72

30 + 12 + 2 + 1/72

= 45/72

= 5/8

Option D is wrong.

Therefore, the correct answer is Option C

Answer:

D

Step-by-step explanation:

9 7/15

................

Answer:

D. 9[tex]\frac{7}{15}[/tex]

Step-by-step explanation:

2[tex]\frac{4}{5}[/tex]+6[tex]\frac{2}{3}[/tex]  becomes

2[tex]\frac{12}{15}[/tex]+6[tex]\frac{10}{15}[/tex]  then you add them together

8[tex]\frac{22}{15}[/tex] then simplify to 9[tex]\frac{7}{15}[/tex]

Answer:

it c

Step-by-step explanation:

it make scence

Answer:its b

Step-by-step explanation:

Answer:

Answer:

the domain of y = x is all real numbers.

Answer:

vertical angles

Step-by-step explanation:

angles 6 and 7 are formed by the same two lines and are on opposite sides  of the intersection point

Answer

Step-by-step explanation:

Answer:

b

Step-by-step explanation: