Pls help pls IM BEGGING YOU help me with number 21 pls

Answer:

o dpB

Step-by-step explanation:

Answer:

Yes

No

Yes

No

Yes

No

Answer: THE ANSWER IS D. Yes; no value in the domain corresponds to more than one value in the range.

Find the domain and range.

Domain:

{ − 2 ,  3 ,  − 0.5 ,  4 }

Range:

{ 9 }

Step-by-step explanation: ITS NOT A OR C

Determine if the relation is a function.

The relation is a function.

Answer:

[tex](\frac{3}{2},102)[/tex]

Step-by-step explanation:

Given

[tex]f(x)=88x^2-264x+300[/tex] --- Missing from the question

Required

The symmetry

First, we express f(x) as: [tex]f(x) = a(x - h)^2 + k[/tex]

Where the symmetry is: (h, y) and x = h

Equate f(x) to 0

[tex]88x^2-264x+300 = 0[/tex]

Subtract 300 from both sides

[tex]88x^2-264x+300 - 300= 0 - 300[/tex]

[tex]88x^2 - 264x= - 300[/tex]

Factorize

[tex]88(x^2 - 3x) = -300[/tex]

On the left-hand side, the coefficient of x is -3.

Divide by 2 and add the square to both sides.

So, we have:

[tex]88(x^2 - 3x) + (\frac{3}{2})^2 = -300 + (\frac{3}{2})^2[/tex]

Multiply the new terms by 88 (to make it factorizable)

[tex]88(x^2 - 3x ) +88* (\frac{3}{2})^2 = -300 + 88 * (\frac{3}{2})^2[/tex]

Factorize

[tex]88(x^2 - 3x + (\frac{3}{2})^2) = -300 + 88 * (\frac{3}{2})^2[/tex]

The quadratic expression in the bracket is a perfect square. This gives:

[tex]88(x - \frac{3}{2})^2 = -300 + 88 * (\frac{3}{2})^2[/tex]

[tex]88(x - \frac{3}{2})^2 = -300 + 88 * \frac{9}{4}[/tex]

[tex]88(x - \frac{3}{2})^2 = -300 + 22 * 9[/tex]

[tex]88(x - \frac{3}{2})^2 = -102[/tex]

Add 102 to both sides

[tex]88(x - \frac{3}{2})^2 +102= -102 + 102[/tex]

[tex]88(x - \frac{3}{2})^2 +102= 0[/tex]

Equate to y

[tex]y = 88(x - \frac{3}{2})^2 +102[/tex]

Recall that:

The symmetry is: (h, y)

By comparison with [tex]f(x) = a(x - h)^2 + k[/tex] and x = h

[tex]h = \frac{3}{2}[/tex]

So: [tex]x = \frac{3}{2}[/tex]

Substitute [tex]x = \frac{3}{2}[/tex] in [tex]y = 88(x - \frac{3}{2})^2 +102[/tex]

[tex]y = 88(\frac{3}{2} - \frac{3}{2})^2 +102[/tex]

[tex]y = 88(0)^2 +102[/tex]

[tex]y = 0 +102[/tex]

[tex]y = 102[/tex]

So, the symmetry is: [tex](\frac{3}{2},102)[/tex]

Answer:

308? ( not really sure )

Explanation:

Answer:

5

Step-by-step explanation:

Hello There!

This question has to do with proportionalities

The first thing we want to do is create a proportional relationship between the total amount of trains to the amount of trains that are full  

It said that out 14 trains 10 were full

so the proportional relationship would be

10 to 14

now we want to find how many trains would be full out of 7

to do so we set up an equation using our formed proportion

let x = number of full trains

[tex]\frac{10}{14} =\frac{x}{7}[/tex]

now we solve for x

to solve for x we want to isolate the variable (x) and get rid of the 7

to do so we multiply each side by 7

[tex]\frac{x}{7} 7=x\\\frac{10}{14} 7=5[/tex]

we're left with x = 5

hence we can expect 5 trains to be full out of 7

i think it is A. P(5<X<9)

Answer:

g = 9°

hence LMN = 135 + 18 = 153°

Step-by-step explanation:

straight line is 180°

180 - 18 = 162

162 = 18g

g = 9

Answer:

Step-by-step explanation:

So try to find the total angle so

15g+18+3g=180

18g=180-18

18g=162

g=9

angle LMN=15x9+18

=135+18

LMN=153 degrees

angle PMN=3x9

= 27 degrees

Answer:

the surroundings or conditions in which a person, animal, or plant lives or operates

Step-by-step explanation:

they spelt it wrong

Answer:

Environment means anything that surround us. It can be living things (biotic) or non-living (abiotic) things. It includes physical, chemical and other natural forces. In the environment there are different interactions between animals, plants, soil, water, and other living and non-living things.

Answer:

77

Step-by-step explanation:

Answer:

See bolded below

Step-by-step explanation:

1. First solve the inequality:

2|3-4x|+5>4 [subtract 5 from both sides]

2|3-4x| > - 1 [divide both sides by 2]

|3-4x| > - 1/2

Since all absolute values are always greater than or equal to 0, the solution would be: All Solutions. Respectively in interval notation we have (- ∞, ∞)

2. Start by solving the equation:

|2-3x|=|x-3|,

2-3x = x-3, 2-3x = -(x - 3)

x = 1.25, x = -0.5

In set builder notation: { x | x ∈ {1.25, -0.5} }

Answer:

Area model is one of a simple step to understand the given situation. So to make it simple, we need to decompose the number.

given number = 4.6 and 3

First we need to get the whole number and start multiplying:

Whole number of 4.6 => 4

whole number of 3 => 3

Now, let’s start multiplying the whole number

=> 4 x 3

=> 12

Then let’s multiply the remaining decimal:

=>.6 x 3

=> 1.8

Then add

=> 12 + 1.8

= 13.8

we know that

The area model for multiplication is a pictorial way of representing

multiplication. In the area model, the length and width of a rectangle

represent factors, and the area of the rectangle represents their product

So

in this problem

the factors are

l e n g t h  4.6  w i d e  3

decompose the number  

4.6

4.6 = ( 4 + 0.6 )  A r e a  o f  r e c t an g l e  = A r e a  r e ct a n g l e  1 +  A r e a  re c t a n g l e 2 = ( 4 + 0.6 ) ∗ 3 = 4∗ 3 + 0.6 ∗ 3 = 12 + 1.8 = 13.8

see the attached figure to better understand the problem

therefore

the answer is

the product of  

4.6

and  

3

is equal to  

13.8

Step-by-step explanation:

Answer:

Rotaded areound the orgin counter clockwise 90 degrees

Answer:This is a linear equation.

y = mx+b

y is the total cost.

The slope m is the rate: that's 9 dollars per hour.

x is the number of hours.

b is the initial value: that's 16 dollars.

y = 9x+16

The problem states that the cost was 79 dollars.

Substitute that for y and solve for x.

79 = 9x+16

63 = 9x

x = 7 hour

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

80-17=63

63/7  = 9

7 times 9 = 63

Answer:

7.2% ...................

Answer: A ratio is one thing or value compared with or related to another thing or value; it is just a statement or an expression, and can only perhaps be simplified or reduced. On the other hand, a proportion is two ratios which have been set equal to each other; a proportion is an equation that can be solved.

Step-by-step explanation: looked it upp

9514 1404 393

Answer:

  B.  39°, 106°, 43°

Step-by-step explanation:

The sum of angle measures in a triangle is 180°. Then the sum of angle expressions will be 180.

  (3x +1) +(11x -4) +(5x -7) = 180

  19x -10 = 180 . . . . . collect terms

  19x = 190 . . . . . . . . add 10

  x = 10 . . . . . . . . . . . divide by 19

__

Then the three angle measures are ...

The appropriate choice is ...

  B.  31°, 106°, 43°

Answer:

15

Step-by-step explanation:

becasue the slope is very harddddd

Answer:

It has a slope of 0

m-0

Step-by-step explanation:

Answer:

I think 0.165

Step-by-step explanation:

1/3 equals 0.33 and then divided by two .165.

Answer:

C

Step-by-step explanation:

What did you need help with

Answer:

what's the question though?

Step-by-step explanation:

Step-by-step explanation:

sides are 4cm, 8cm, 8cm ----( because isosceles triangle have 2 sides equal )

so, perimeter = sum of all sides

= 4 + 8 + 8

Answer:

r = 8.2mm

d = 816.4mm

Step-by-step explanation:

Let the soap be spherical in nature

Volume of a sphere = 4/3 πr³

r is the radius

Given that V = 2308.4mm^3

Substitute

2308.4 = 4/3 πr³

2308 = 4/3 (3.14)r³

2308.4 * 3 = 12.56r³

6,925.2 = 12.56r³

r³ = 6,925.2 /12.56

r³ = 551.37

r = 8.2mm

diameter = 2r

diameter = 2(8.2)

diameter = 16.4mm