algebra 1, i don’t understand step 2

Answer:

122 = 144

or

√12 = 3.464

Answer:

4370

Step-by-step explanation:

Answer:

4,370.0

Step-by-step explanation:

Rounding 9.69 to the nearest whole number gives us 10.

Given that we need to round the decimal number 9.69 to the nearest whole number,

To round 9.69 to the nearest whole number, we look at the decimal part of the number, which is 0.69.

Since the decimal part is greater than or equal to 0.5, we round the whole number up to the next higher number. In this case, 9.69 is closer to 10 than to 9, so we round it up to 10.

Therefore, rounding 9.69 to the nearest whole number gives us 10.

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Answer:

b2−b+4

Step-by-step explanation:

Write the problem as a mathematical expression.

(2b2−6)+(4b+7)−(b2+5b−3)(2b2-6)+(4b+7)-(b2+5b-3)

Remove parentheses.

2b2−6+4b+7−(b2+5b−3)2b2-6+4b+7-(b2+5b-3)

Simplify each term.

2b2−6+4b+7−b2−5b+32b2-6+4b+7-b2-5b+3

Simplify by adding terms.

b2−b+4

The order S, U, N shows U is in the middle. We can read this in reverse to get N, U, S.

Notice how the letter "U"s are adjacent in NU and US to get NU+US.

Answer:

C.) [tex]A=12x-20[/tex]

Step-by-step explanation:

The area formula:

[tex]A=l*w[/tex]

Insert the values:

[tex]A=4*(3x-5)[/tex]

Use the distributive property:

[tex]A=4(3x)+4(-5)\\\\A=12x-20[/tex]

:Done

Answer:

I do not sorry

Answer:

2 • (x - 6) • (3x + 2)

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x2" was replaced by "x^2".

STEP 1 : Equation at the end of step 1

((2•3x2) - 32x) - 24

STEP 2 : Pulling out like terms

Pull out like factors :

6x2 - 32x - 24 = 2 • (3x2 - 16x - 12)

Trying to factor by splitting the middle term

Factoring 3x2 - 16x - 12

The first term is, 3x2 its coefficient is 3 .

The middle term is, -16x its coefficient is -16 .

The last term, "the constant", is -12

Step-1 : Multiply the coefficient of the first term by the constant 3 • -12 = -36

Step-2 : Find two factors of -36 whose sum equals the coefficient of the middle term, which is -16 .

-36 + 1 = -35

-18 + 2 = -16 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -18 and 2

3x2 - 18x + 2x - 12

Step-4 : Add up the first 2 terms, pulling out like factors :

3x • (x-6)

Add up the last 2 terms, pulling out common factors :

2 • (x-6)

Step-5 : Add up the four terms of step 4 :

(3x+2) • (x-6)

Which is the desired factorization

Final result : 2 • (x - 6) • (3x + 2)

Hope this helps~

Smoll mochi

Answer:

c

Step-by-step explanation:

because  65+3%+4.5=69

Answer:

20 seconds

Step-by-step explanation:

Alarm 1 = every 10 seconds

Alarm 2 = every 5 seconds

Alarm 3 = every 4 seconds

If they all go off at the same time due to a loud clap of thunder, how long will it take until they all sound at the same time again?

To determine how long it will take until they all sound at the same time again, find the lowest common multiple of the three alarm

Alarm 1 (every 10 seconds) = 20, 30, 40, 50, 60, 70, 80, 90,

Alarm 2 (every 5 seconds) = 10, 15, 20, 25, 30, 35, 40, 45, 50

Alarm 3 (every 4 seconds) = 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48

The lowest common multiple of Alarm 1 (every 10 seconds), Alarm 2 (every 5 seconds) and Alarm 3 (every 4 seconds) is 20 seconds

Therefore, they will all sound at the same time again in the next 20 seconds

The equation that has a graph with a y-intercept of -8 is y =3x - 8. The correct option is A. y =3x - 8

To determine which of the given equations has a graph with a y-intercept of -8.

We will compare the equations with the slope-intercept form of the equation of a straight line.

The slope-intercept form of the equation of a straight line is

y = mx + c

Where m is the gradient or slope

and c is the y-intercept

By comparing with y = mx + c

m = 3 and c = -8

∴ The y-intercept here is -8

By comparing with y = mx + c

m = -8 and c = 3

∴ The y-intercept here is 3

This can be written as

y = (3/8)x + 5/8

By comparing with y = mx + c

m = 3/8 and c = 5/8

∴ The y-intercept here is 5/8

This can be written as

y = (8/3)x - 5/3

By comparing with y = mx + c

m = 8/3 and c = - 5/3

∴ The y-intercept here is -5/3

Hence, the equation that has a graph with a y-intercept of -8 is y =3x - 8. The correct option is A. y =3x - 8

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Answer:

Domain: All Real Numbers or (-∞, ∞)

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see that any value of x can be plugged into the function.

∴ Our answer is all real numbers

Answer:

[tex]x=-11[/tex]

Step-by-step explanation:

So we have the equation:

[tex]5+(x-2)=-8[/tex]

Let's subtract 5 from both sides:

[tex](5+(x-2))-5=(-8)-5[/tex]

The left side will cancel. Subtract on the right:

[tex]x-2=-13[/tex]

Now, add 2 to both sides:

[tex](x-2)+2=(-13)+2[/tex]

Again, the left side will cancel. Add the right:

[tex]x=-11[/tex]

And we're done!

Answer:

it should be x=5

Step-by-step explanation:

5+(x-2)= -8

3+x=8

-3    -3

answer is x=5

Answer:

-58

Step-by-step explanation:

Answer:-58

Step-by-step explanation:

Answer:

500=2.5x+200

x=the amount of desserts.

500-200=2.5x

300=2.5x

x=120

Step-by-step explanation:

PQRS is a rectangle.

PS = 5cm

PQ = 12cm

The length of qr ,sr and the two diagonals pr and qs.

Opposite sides of a rectangle are equal.

QR = PS = 5cm

SR = PQ = 12cm

By using Pythagoras Theorem, we get

PR = √PS^2 + SR^2

or, PR = √25 + 144

or, PR = √169

or, PR = 13cm

Diagonals of a rectangle are equal.

QS = PR = 13cm

QR = 5 cm

SR = 12 cm

PR = 13 cm

QS = 13 cm

Answer:

19/15

Step-by-step explanation:

1 2/3=5/3

So 5/3 - 2/5 ( + - is -)

Making the denominator equal we get

(25-6)/15=19/15

Answer: (-5,4)

Step-by-step explanation:

I’m not quite good at explaining but I think my answer might be right not sure

Answer:

(2x+7)+4

Step-by-step explanation:

Anytime it says number of units left is a +7.

And it goes in the parentheses or absolute

Answer:

r = 7

Step-by-step explanation:

Step 1: Write out equation

4r + 7 = 35

Step 2: Subtract 7 on both sides

4r + 7 - 7 = 35 - 7

4r = 28

Step 3: Divide both sides by 4

4r/4 = 28/4

r = 7

Solve 4r+7=35

4r=35-7

4r=28

r=7

:)

Answer:

D) 3x + 15 ≥ 300

Step-by-step explanation:

The rectangle must have a area of AT LEAST 300 square ft, or 300 or greater. Use the greater than or equal sign: ≥ 300.

Note that your are solving for the area, and that this shape is a rectangle. To get the area of the rectangle, simply multiply length and width:

(3) * (x + 5) = Area of rectangle.

Distribute the 3 to all terms:

3(x + 5) = 3x + 15 = Area of rectangle.

Put the two parts together:

3x + 15 ≥ 300.

~

Answer:

The last answer.

Step-by-step explanation:

The area of a rectangle is

Area=(width)*(length)

If we substitute the 2 given values into the formula we will get

Area= 3(x+5)

=3x+15

Since it's asking that it has to be "at least 300", it's saying that the equation has to be 300 or more.

3x+15>(less than or equal to) 300.

Answer: 14 miles

Step-by-step explanation:

70/5 = 14

Answer:24 xexponet 3 − 5

Step-by-step explanation:

Answer:

(-3,0)

Step-by-step explanation:

When translating, anything positive when talking about x would move x to the right. Negative, left, so you would move point a 3 units to the left.

When translating, anything positive when talking about y would move y up. Negative, down, so you would move point a 2 units up.

Answer:

2

Step-by-step explanation:

Since the absolute value of -8 is 8, and the absolute value os 6 is 6, we can

do 8-6=2.

Answer: 2

Step-by-step explanation:

Answer:

Is that algebra??

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

1. Distance = √((√5)^2 + (-1)^2)

= √(5 + 1)

= √6.

2. √(1^1 + (-2)^2)

= √5.

3. √(4^2 + 3^2)

= √(16 + 9)

= √25

= 5.

4. √(6)^2 + (-8)^2)

= √(36 + 64)

= √100

= 10.