domain and range question

Answer:

-2 [tex]\frac{1}{2}[/tex] = -2.5 and 3[tex]\frac{1}{3}[/tex] = -3.33333333

Step-by-step explanation:

Answer:

45m

Step-by-step explanation:

you have to find the diagonal by using the pitagora's theoreme.

it uses the formula [tex]\sqrt a^{2} +b^{2}[/tex] when you have to find the lenght of the longer side of a triangle with an angle of 90°. So the diagonal will be [tex]\sqrt27^{2} +36^{2}[/tex] =[tex]\sqrt729+1296[/tex] =  [tex]\sqrt2025[/tex] = 45

Answer:

h is 5

sorry for bad handwriting

Work Shown:

x^2 - 9 = 0

x^2 - 3^2 = 0

(x-3)(x+3) = 0 ..... difference of squares rule

x-3=0 or x+3=0

x = 3 or x = -3

Answer:

1. there are 0 4s in 0 so the first one is 0

2. you can not reach to 8 with 0s, so the answer is undefined

Answer:

FALSE

Step-by-step explanation:

We are assuming that t is a real number.

Thus, cos(t) is a real number greater than or equal to -1 and less than or equal to +1.  

Thus, cos(t) = 3 is false for all real t, and so in particular it is false for the value(s) of t such that tan(t) = 2/3.  

Answer: The answer is A

Step-by-step explanation:

Answer:

[tex]5a^{3} - 3a^{2} b-3a^{2}[/tex]

Step-by-step explanation:

[tex]a^{2} (5a-3b)-3a^{2} |[/tex]

Expand brackets

[tex]5a^{3} - 3a^{2} b-3a^{2}[/tex]

Final Answer is

[tex]5a^{3} - 3a^{2} b-3a^{2}[/tex]

Answer: x (x - 1)

Step-by-step explanation:

Answer:

Step-by-step explanation: I am trying to interpret the question: I'll assume:

Line AB has a midpoint, M.

A is (8,4)

B is unknown, but desired

M is (3,-2)

We'll assume a straight line of the form y=mx+b, where m is the slope. m can be calculated by the "Rise" over the "Run" between the points A and M:

Rise = (4-(-2))=6

Run = (8-3)=5

Slope = (Rise/Run) = (6/5)

The line becomes y=(6/5)x+b

Calculate b, the y-intercept (the value of y when x is 0), by entering one of the two known points. I'll choose (8,4).

y=(6/5)x+b

4 = (6/5)(8)+b

b = 4 - (6/5)(8)

b = 4 - (48/5)

b = 4 - (9 3/5) or -5 3/5

The equation becomes:

y=(6/5)x - 5 3/5

Point B will have an x value of -2 [The change in x from A to M was (3-8) = -5. From M to 5 would be another -5 increment, so x goes from 3 to (3-5) or -2.

Find the value of y for x=-2:

y=(6/5)x - 5 3/5

y=(6/5)*(-2) - 5 3/5

y=(-12/5) - (28/5)

y = -(40/5) or - 8

B has coordinates of (-2, -8)

If coordinates of point A is (8, 4), then the coordinate of point B will be (-2, -8).

The "Midpoint-Formula" is used to find the coordinates of a point that lies exactly halfway between two given points. It's given as :Midpoint (M) = ((x₁ + x₂)/2, (y₁ + y₂)/2),

In this case, we have the midpoint as M(3, -2) and one of the endpoints as A(8, 4). We need to find coordinates of other endpoint which is B,

Using the midpoint formula, we rearrange it to solve for the missing coordinates (x₂, y₂),

x₂ = 2 × Mₓ - x₁,

y₂ = 2 × [tex]M_{y}[/tex] - y₁,

Substitute the given values:

We have : Mₓ = 3; [tex]M_{y}[/tex] = -2,

x₁ = 8; y₁ = 4

x₂ = 2 × 3 - 8 = -2;   y₂ = 2 × -2 - 4 = -8,

Therefore, the coordinates of point-B is(-2, -8).

Learn more about Midpoint here

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The given question is incomplete, the complete question is

The midpoint line AB is M(3, -2). If the coordinates of A is (8,4), What are the coordinates of B?

Answer:

-35-3.5f+28g

Step-by-step explanation:

Distribute (or multiply) each number (within the parenthesis) by 7.

7*-5= -35

7*-1/2f= -3.5f

7*4g= 28g

Add these up and get:

-35-3.5f+28g

The cost of each 1 pound candy is $30, 1 box of cookies is $5 and 1 can of popcorn is $10.

We have the church youth group is selling snacks to raise money to attend their convention.

We have to determine the cost of each item they sold.

The mathematical equation representing the above statement is -

2x + 5y = 50

According to question -

Assume that the cost of :

1 pound candy = $x

1 box of cookies = $y

1 can of popcorn = $z

Now, write down the mathematical equation representing their total sales -

Amy -      2x + 3y + z = 85

Brian -     4x + 4y + 3z = 170

Paulina -     8x + 8y + 5z = 330

We will use the Cramer's rule to solve these equations -

The 3 x 3 coefficient matrix is -

[tex]\left[\begin{array}{ccc}2&3&1\\4&4&3\\8&8&5\end{array}\right][/tex]

Find its determinant -

D = 2(4 x 5 - 3 x 8) - 3(4 x 5 - 8 x 3) + 1(4 x 8 - 4 x 8) = 4

Create the X- matrix (X - matrix is formed by replacing the x-column values with the answer-column values) as follows -

[tex]\left[\begin{array}{ccc}85&3&1\\170&4&3\\330&8&5\end{array}\right][/tex]

Find th determinant of this X - matrix same as done above -

D(X) = 120

Similarly create a Y - matrix and Z - matrix and find their respective determinants. On solving you will get -

D(Y) = 20

D(Z) = 40

According to the Cramer's rule -

[tex]$x = \frac{D_{x} }{D}[/tex]

[tex]$y = \frac{D_{y} }{D}[/tex]

[tex]$z = \frac{D_{z} }{D}[/tex]

Therefore -

x = 120/4 = 30

y = 20/4 = 5

z = 40/4 = 10

Hence, the cost of each 1 pound candy is $30, 1 box of cookies is $5 and 1 can of popcorn is $10.

To solve more questions on Linear equations and Cramer's rule, visit the link below -

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Answer:

all of them will get there the same time because they all went at a constant rate

Answer:

slope

2,2

-2,-3

Step-by-step explanation:

sana makatulong"

9514 1404 393

Answer:

  3:10 p.m.

Step-by-step explanation:

The amount that will have leaked is ...

  1200 mL -450 mL = 750 mL

The time required for this amount to leak out is ...

  (750 mL)/(3 mL/min) = 250 min = 4 h, 10 min

There will be 450 mL left in the carton at 3:10 p.m.

Answer:

-2 or 2 im in a rush sorry

Step-by-step explanation:

Step-by-step explanation:

[tex]x\neq -5[/tex] and [tex]x\neq 6[/tex]

[tex]\frac{-11x}{x^{2}-x-30 }-\frac{8}{x-6}-\frac{x}{x+5}=0[/tex]

[tex]\frac{-11x}{x^{2} +5x-6x-30} -\frac{8}{x-6} -\frac{x}{x+5}=0[/tex]

[tex]\frac{-11x}{(x+5)(x-6)} -\frac{8}{x-6}-\frac{x}{x+5} =0[/tex]

[tex]-\frac{11x+8x+40+x^{2} -6x}{(x+5)(x-6)}=0[/tex]

[tex]-\frac{13x+40+x^{2} }{(x+5)(x-6)}=0[/tex]

[tex]-\frac{(x+8)(x+5)}{(x+5)(x-6)}=0[/tex]

[tex]-\frac{x+8}{x-6} =0[/tex]

[tex]x+8=0[/tex]

[tex]x = -8[/tex]

Please give me a brainliest answer

Answer: 0.5 oz is the weight of one cookie

Step-by-step explanation: If 2 cookies weight 1 oz then 1 cookie weights 0.5 oz.

Answer:

x=6

UV=40

WV=40

UW=30

Step-by-step explanation:

GIVEN UV=WV

6X+4=40

X=6

NOW PUT X=6 in WV AND UW

Answer: Option A.

Step-by-step explanation: Draw a number line from negative 5 to positive 5 with increments of 0.5. Make an empty circle on the first mark to the left of 0. It means mark an open circle at -0.5.

The region to the left of the empty circle is shaded. It means all the points lie on the left side of -0.5 at in the shaded region.

We need to find a statement that explains whether −1.5 can be a value in the shaded region.

Since −1.5 lies to the left of −0.5 , therefore -1.5 is in the shaded region.

Therefore, the correct option is A.

Answer

4x²+6x²-3x²-3x-2-4=7x²-3x-6

Step-by-step explanation:

(f+g)(x)=f(x)+g(x)

Answer:

2^7

Step-by-step explanation:

Dividing fractions with exponents means you subtract, so 2^6/2^4 = 2^6-4 =2^2

Multiplying numbers with exponents means adding the exponents, so 2^2+2^5 = 2^2+5 = 2^7

Answer:

2^7

Step-by-step explanation:

please mark me as brainlest

Answer:

its 72 good luck on your test

Answer: C, 72

Step-by-step explanation:

You just have to figure out if the denominators have a common multiple. You have to figure out what goes into 8, 9, and 12 and see if its the lowest number.

Answer:

<1 = 58 , <2 = 122, <3 = 58

Step-by-step explanation:

concept #1: a straight line has an angle of 180.

180 -122 = 58

concept #2: a angle across from another(in which they share a common point made by two lines crossing each other) have essentially the same angle degree

<2 = 122

there <3 is also angle degree of <1 which is 58