please help me i need this answer ASAPP!!​

Answer:

Step-by-step explanation:

3x^2+kx+12=0

k= -3x-12/x

Answer:

k = 12  

Step-by-step explanation:

3(x² + kx + 2²) = 3(x² + ____x + 4) = 3(x² + 4x + 4) = 3x² + 12x + 12 ⇒ k = 12

Answer:

I got 7/3

Step-by-step explanation:

Hope this helps!!

Answer:

exact form: x=7/3

decimal form: x=2.3 (repeating)

mixed number: x= 2 1/3

Step-by-step explanation:

Answer:

3 x 10^8

Step-by-step explanation:

300,000,000 in scientific notation is 3 x 10^8 and because it’s 8 zeros

The number 300,000,000 represented in scientific notation will be 3 × 10⁸. Then the correct option is A.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

According to the U.S. Geological Survey, there are over 300,000,000 cubic miles of water on the planet.

Convert the integer number into scientific notation. Then the number can be written as,

300,000,000 = 3 × 10⁸

The number 300,000,000 represented in scientific notation will be 3 × 10⁸. Then the correct option is A.

More about the Algebra link is given below.

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Answer:

2.5

Step-by-step explanation:

2(a+3b)+3(4a+b)

Distribute 2 through the parentheses

2a+6b+3(4a+b)

Distribute 3 through the parentheses

2a+6b+12a+3b

Collect like terms

14a+6b+3b

Collect like terms

14a+9b

Answer :14a+9b

PLEASE MARK ME AS BRAINLIEST

The correct answer for the simplification of  [tex]2(a+3b) + 3(4a+b)[/tex]  is   [tex]14a+9b[/tex].

Given expression:

[tex]2(a+3b) + 3(4a+b)[/tex].

To simplify the expression  [tex]2(a+3b) + 3(4a+b)[/tex]:

Apply distributive property:

Distribute coefficients outside parentheses:

[tex]2(a) + 2(3b) + 3(4a) + 3(b)[/tex].

simplify, terms inside the parentheses:

[tex]2a + 6b + 12a +3b[/tex].

Combine like terms:

[tex](2a+12a) + (6b+3b)[/tex]

= [tex]14a+9b[/tex]

The simplified expression is [tex]14a+9b[/tex]

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Answer:

36.75 and 1/6 ( 6 accounts equally distributed )

Step-by-step explanation:

Number of Red counters to be sketched = 9

Number of Yellow counters = 4

The number of Zero pairs that can be made = 36.75

When you remove the Zero pairs the number of counters you would have = 6 accounts ie. 1/6

Answer:

22

Step-by-step explanation:

2(3(5)-2(2)

2(15-4)

2(11)

2*11=22

Answer:

All you have to do is find 20% of 25

Remember that you have to change the percent to decimal

20% = 0.2

0.2 × 25 = 5

The equation that should be used to find the number of oak trees on the property is 20% of 25.

Given that,

Based on the above information, the calculation is as follows:

= 20% of 25

= 5

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Answer:

I know I'm late but the answer is yes!

Step-by-step explanation:

I got it correct on Khan academy:)

Answer:

Yes

Step-by-step explanation:

Khan academy:

Answer:

hey buddy im gona help you!

Step-by-step explanation:

Answer:

the answer is 520 I think

Answer:

520

Step-by-step explanation:

iiiiiiiiiiiiiiiiiiiiiiiii

Step-by-step explanation:

142meters

Answer:

X = 16

Step-by-step explanation:

Place Value helps you subtract decimals because without it it would be a mess. Everything has to be in order if not you get the wrong answer

The points must be true for Point A which is the incenter of triangle DEF are 1> Point A is the center of the circle that passes through points X, Y, and Z. 2>Line segment A X is-congruent-to line segment A Y . 3> Point A is always inside triangle DEF .

The incenter of a triangle is the point of intersection of all the three interior angle bisectors of the triangle. This point is equidistant from the sides of a triangle, as the central axis's junction point is the center point of the triangle's inscribed circle. The incenter of a triangle is also known as the center of a triangle's circle since the largest circle could fit inside a triangle. The circle that is inscribed in a triangle is called an incircle of a triangle.

According to the question

Point A is the incenter of triangle DEF .

Lines are drawn from point A to the sides of the triangle to form right angles and line segments A X, A Y, and A Z.  (X,Y,Z are points on middle of sides )

Now,

According to the properties of  incenter of the triangle  

1.> The circle that is inscribed in a triangle is called an incircle of a triangle.  

i.e

Point A is the center of the circle that passes through points X, Y, and Z.

2> The incenter of a triangle is equidistant from the sides of a triangle, as the central axis's junction point is the center point of the triangle's inscribed circle.  

i.e

Line segment A X is-congruent-to line segment A Y .

3> A triangle's incenter always lies inside the triangle.

i.e

Point A is always inside triangle DEF .

Hence, The points must be true for Point A which is the incenter of triangle DEF are 1> Point A is the center of the circle that passes through points X, Y, and Z. 2>Line segment A X is-congruent-to line segment A Y . 3> Point A is always inside triangle DEF .

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Answer: D

Step-by-step explanation:

The point in the grid if you divide by 2 will give you the prime points. Also it flips over the y axis.

Answer:

Step-by-step explanation:

okay i will answer but i dont see the question

Given:

The inequality is

[tex]2n+8>12[/tex]

To find:

The solution of the given inequality.

Solution:

We have,

[tex]2n+8>12[/tex]

Subtract 8 from both sides.

[tex]2n+8-8>12-8[/tex]

[tex]2n>4[/tex]

Divide both sides by 2.

[tex]\dfrac{2n}{2}>\dfrac{4}{2}[/tex]

[tex]n>2[/tex]

It means, the value of n is greater than 2.

Therefore, the solution of given inequality is n > 2.

Answer:

y=px

so the answer would be $49.95

pretty sure

Step-by-step explanation:

Sample Response: The goal is to get x all alone. First combine like terms. Apply the addition property of equality to add 4 to both sides. Apply the division property of equality to divide both sides by 3. The result will be x = 4. Finally, check the solution by substituting 4 into the original equation.

Answer:

Sample Response: The goal is to get x all alone. First combine like terms. Apply the addition property of equality to add 4 to both sides. Apply the division property of equality to divide both sides by 3. The result will be x = 4. Finally, check the solution by substituting 4 into the original equation.

Step-by-step explanation:

Answer:

[tex]h(t) = 10 + 5t[/tex]

70 feet

Your height in 5 seconds is 35 feet

Step-by-step explanation:

From the question, we understand that:

[tex]Initial\ Height = 10[/tex]

[tex]Rate = 5[/tex] per second

Solving (a): Equation for h(t)

This implies that the height at t seconds and is calculated as thus:

[tex]h(t) = Initial\ Height + Rate * t[/tex]

Where t represents seconds

Substitute values for Initial Height and Rate

[tex]h(t) = 10 + 5* t[/tex]

[tex]h(t) = 10 + 5t[/tex]

Solving (b): Height in 12 seconds

This implies that:

[tex]t = 12[/tex]

Substitute 12 for t in [tex]h(t) = 10 + 5t[/tex]

[tex]h(12) = 10 + 5 * 12[/tex]

[tex]h(12) = 10 + 60[/tex]

[tex]h(12) = 70[/tex]

Hence, your height will be 70 feet

Solving (c): h(5) = 35 means?

Using the illustration in (b) above;

This means that your height in 5 seconds is 35 feet

Answer:

-20+2.5b is the answer

Step-by-step explanation:

-2.5(8-b)

-2.5*8 plus 2.5*b

-20+2.5b

Answer:

12c + 9m ≤ 138

Step-by-step explanation:

Answer:b. 12c+9m less than or equal to 138

Step-by-step explanation:

Answer:

The width is 20.625 and the length is 19.375

Step-by-step explanation:

Let 2 1/2 + w = length

Let w = width

Equation:

2 1/2 + w + w = 80                     Combine liked terms

2 1/2 + 2w = 80                    

-2 1/2         -2 1/2                        Subtract 2 1/2 from both sides

2w  =   77.5

÷ 2     ÷ 2                                    Divide 2 from both sides

w = 41.25

Length:

2 1/2 + 41.25 = 165/4 or 38.75

Width:

41.25

41.25/2 = 20.625

38.75/2 = 19.375

Answer:

C 10

Step-by-step explanation:

Divide both 10 and 30 by 10 to get 1 and 3.

Answer: C 10

Answer:

7

Step-by-step explanation:

5(x - 3) = 2(x + 3)                     Distribute

5x - 15 = 2x + 6                    

    + 15         + 15                     Switch sides to the liked terms

5x = 2x + 6 + 15

-2x  -2x                                   Switch sides to the liked terms

5x - 2x = 6 + 15  

3x = 21                                      Divide

3       3                  

x = 7

Answer:

x = 7

Step-by-step explanation:

Equation: 5(x-3) = 2(x+3)

Step 1: Simplify the equation.

5 (x − 3) = 2(x + 3)

(5)(x) + (5)(−3) = (2)(x) + (2)(3) Distribute

5x + −15 = 2x + 6

5x − 15 = 2x + 6

Step 2: Subtract 2x.

5x − 15 −2x = 2x + 6 −2x

3x − 15 = 6

Step 3: Add 15.

3x − 15 + 15 = 6 + 15

3x = 21

Step 4: Divide by 3.

[tex]\frac{3x}{3} = \frac{21}{3}[/tex]

Step 5: Divide 21 by 3.

The answer is x = 7.

Answer:

400. just use simple devision and it'll tell you.