please someone help me this is math and you will get points

Answer:

4k - 8

Step-by-step explanation:

Lucy is k years old so we know k is an important part of this problem.
Sister 1 is 3 years younger, so she is k - 3 years old.
Sister 2 is 5 years less than twice Lucy's age therefore, she is 2k (twice Lucy's age) - 5 years old.
Now we have: k + (k - 3) + (2k - 5)
We can simplify like terms with the k's and get 4k. then we add (-3) and (-5) to get 4k - 8.

Hope this helps!

Answer: 50

Step-by-step explanation:

[tex]h\:\circ \:g=h\left(g\left(x\right)\right)[/tex]

[tex]g\left(x\right)=4x-2[/tex]

[tex]=h\left(4x-2\right)[/tex]

[tex]=5\left(4x-2\right)[/tex]

[tex]=20x-10[/tex]

Substitute 3 for x:

= 20(3)-10

= 50

Answer:

1. Standard form

2. Vertex form

3. Intercept form

Step-by-step explanation:

#CARRYONLEARNING

Answer:

a. 2. Intercept Form

b. 3. Vertex Form

c. 1. Standard Form

Step-by-step explanation:

hope this helps :)

Step-by-step explanation:

okay hold up a sec

Answer:

the train's average rate of speed would be 57.8 mph

Step-by-step explanation:

Divide 1445 with 25 and then you get your answer

brainilest pls

anyway hope this helped have an awesome day bye byeee

Answer:

dimensions: 8 ft x 8 ft      ║       32 ft of  fence she used.

Step-by-step explanation:

as its a square, its formula for area: length²

using the formula:

length² = 64

length = √64

length = 8 ft

→ The dimensions of the kennel is 8 ft x 8 ft

Using the length, we can find; how many fencing she used:

formula used: 2 ( length + length )

using the formula:

2 ( 8 + 8 )

2 ( 16 )

32 ft

Answer:

a) Rectangle:

Length = 12 cm

Breadth = 6 cm

Area = length × breadth

= 12 × 6

= 72 cm²

b) Triangle A:

Base = 3 cm

Height = 6 cm

Area = 1/2 × base × height

= 1/2 × 3 × 6

= 9 cm²

c) Triangle B:

Base = 3 cm

Height = 6 cm

Area = 1/2 × base × height

= 1/2 × 3 × 6

= 9 cm²

d) Parallelogram:

Base = (12 - 3) = 9 cm

Height (distance between two parallel sides – the ones you use as your base) = 6 cm

Area = base × height

= 9 × 6

= 54 cm²

Answer:

ready. took me 2 minutes

Answer:

  4900 J

Step-by-step explanation:

The average mass of water raised is ...

  (15 kg +(15 -5) kg)/2 = 12.5 kg

The work done to raise it 40 m is ...

  W = mgh = (12.5 kg)(9.8 m/s^2)(40 m) = 4900 J

x=224/8

x=25+3=28

So: 28

180 = 132 + x + x

180 - 132 = 2x

48 = 2x

x = 24⁰

[tex]\qquad \qquad\huge \underline{\boxed{\sf Answer}}[/tex]

Let's use Angle sum property of a triangle ~

[tex]\qquad \sf  \dashrightarrow \: x + x + 132 \degree = 180 \degree[/tex]

[tex]\qquad \sf  \dashrightarrow \: 2x + 132 \degree = 180 \degree[/tex]

[tex]\qquad \sf  \dashrightarrow \: 2x = 180 \degree - 132 \degree[/tex]

[tex]\qquad \sf  \dashrightarrow \: 2x = 48 \degree[/tex]

[tex]\qquad \sf  \dashrightarrow \: x = 48 \degree \div 2[/tex]

[tex]\qquad \sf  \dashrightarrow \: x = 24 \degree[/tex]

Answer:

Step-by-step explanation:

Divide 5 percent by One Hundred,

5/100 = 0.05

Multiply 0.05 by 64

0.05x64= 3.2

Answer:

talk to you're mother

Step-by-step explanation:

love you

Answer:

0,100,0.5,20

Step-by-step explanation:

My answer got removed cause I didn't put an explanation... you just plug in the numbers to the equation.

The following statement are true about the given function

Statements i,ii, and iv

Given Data

We have the following function to analyse

y = 3x

The following statement are true/false about the given function

Learn more about variation here:

https://brainly.com/question/6499629

Answer:

I,II, and IV

Step-by-step explanation:

Answer:

Option B

Step-by-step explanation:

Given the following question:

[tex]5^2\times5^4[/tex]

In order to find the answer, we simply apply the exponent rule and add the exponents.

[tex]5^2\times5^4[/tex]
[tex]2+4=6[/tex]
[tex]=5^6[/tex]

The answer is option B or "5^6."

Hope this helps.

Answer:

Note: Any number or variable(unknown) raised to the index or power zero (0)* is equal to one (1)*.

3. Solution

Given: x = 2 and y = 5

-4x^-2 + 3y^0

by substituting the values of x and y,

> -4(2)^-2 + 3(5)^0

> -4/(2)^2 + 3(5)^0

> -4/4 + 3(1)*

> -1 + 3 = 2

4. Solution

Given: x = 2 and y = 5

2x^0y^-2

by substituting the values of x and y

> 2(2)^0(5)^-2

>2(2)^0×1/(5)^2

>2(1)×1/25

>2×1/25

>2/25

Answer:

5 over 13

Step-by-step explanation:

adjacent over hypotenuse use trigo rules

(Toa Cah Soh)

Answer: 12/13

Step-by-step explanation:

Answer:

The constant of proportionality is [tex]k=\frac{7}{9}[/tex]

Step-by-step explanation:

Recall that the equation for direct variation is [tex]y=kx[/tex] where [tex]y[/tex] varies directly with [tex]x[/tex] and [tex]k[/tex] is the constant of proportionality.

Here, [tex]k=\frac{7}{9}[/tex] since [tex]2(\frac{7}{9})=\frac{14}{9}=1\frac{5}{9}[/tex], [tex]3(\frac{7}{9})=\frac{21}{9}=2\frac{3}{9}[/tex], and so on.

Answer:

y=2x+5

Step-by-step explanation:

The slope-intercept form of a linear equation is:

y=mx+b

Where m is the slope and b is the y-intercept.

We can start by finding the slope...

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

We can use any two x, y pairs to solve for the slope. In this case let's use (0,5) and (2,9)...

[tex]Slope=\frac{9-5}{2-0}=\frac{4}{2}=2[/tex]

The y-intercept is where the line intersects the y-axis. This means that the x value is 0. In the table we can see when the x value is 0, the y value is 5 meaning the y-intercept is 5...

y=2x+5

Answer:

155 m/h

Step-by-step explanation:

We just add 150 to 5 which equals 155 m/h

I HOPE THAT THIS IS CORRECT

Answer:

37.5%

Step-by-step explanation:

let 15 is X % of 40,

now,

x% of 40 =15

or,X/100 ×40 =15

or,X=(15×100)/40

or,X=1500/40

orX=37.5%

Answer: x = -8

Step-by-step explanation:

Move all terms that don't contain x to the right side and then solve