Solve.
X-9 = 12
.....

Answer:

it should be 3(6x+5)

Step-by-step explanation:

3(6x + 5) will  be equivalent expression of 9x - 4 + 4x + 5x + 19 so option (A) will be correct.

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

An expression is a mathematical proof of the equality of two mathematical expressions.

A statement expressing the equality of two mathematical expressions is known as an equation.

Given the expression,

9x - 4 + 4x + 5x + 19

By adding variables and constants individually

(9x + 4x + 5x) + (-4 + 19)

⇒ 18x + 15

Taking common 3

⇒ 3(6x + 5)

Hence "3(6x + 5) will  be equivalent expression of 9x - 4 + 4x + 5x + 19".

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Hello!

3x + 4 = 1

3x + 4 - 4 = 1 - 4

3x = -3

3x/3 = -3/3

x = -1

The solution of the equation 3x + 4 = 1 is -1.

The answer is:

C) x = -1

Work/explanation:

To solve this equation, I subtract 4 from each side:

\(\sf{3x+4=1}\)

Subtract :

\(\sf{3x=-3}\)

Divide each side by 3:

\(\sf{x=-1}\)

Hence, C is correct.

Answer:

x=23, y=129

Step-by-step explanation:

3x-18 and y are consecutive angles meaning they are supplementary and y and 5x+14 are alternate interior angles

So since y=5x+14. 3x-18 and 5x+14 are supplementary so

\(3x - 18 + 5x + 14 = 180\)

\(8x - 4 = 180\)

\(8x = 184\)

\(x = 23\)

Since x=23, let plug it in 3x-18.

\(3(23) - 18\)

\(69 - 18 = 51\)

Since 51 and y are consecutive interior angles, they both add up to 180 degrees.

\(51 + y= 180\)

\(y = 129\)

Answer:

[-0.2  0.4]

[0.8   -0.6]

Answer:

D.134

Step-by-step explanation:

Answer:

7 x (8 ÷ 5)

hhhhhhhhhhhhhhhhhhhhhhhhhhh

(-4x2 + 8x + 2) - (-3x2 - 6x + 9)

Distribute the minus sign:

-4x2+8x+2 +3x2+6x-9

Collect like terms

-4x2+3x2+8x+6x+2-9

-x^2+14x-7



\(-x^{2} +14x-7.\)

\((-4x^{2} + 8x + 2) - (-3x^{2} - 6x + 9)\)

\(-4x^{2} + 8x + 2 - (-3x^{2} - 6x + 9)\)

\((-4x^{2} +3x^{2} )+(8x+6x)+(2-9)\\ \\(-x^{2} )+(14x)+(-7)\\ \\-x^{2} +14x-7\)

\((-4x^{2} + 8x + 2) - (-3x^{2} - 6x + 9)=\\ \\-x^{2} +14x-7.\)

The y-intercept of the linear function means that her initial distance from the finish line is of 10 kilometers.

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

The graph crosses the y-axis at y = 10, hence the intercept b is given as follows:

b = 10.

The y-values represent the distance in the context of this problem, hence the initial distance is of 10 km.

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Answer:

B. 85

Step-by-step explanation:

A triangle has a total of 180 degrees.

85 + 55 = 140

140 + 40 = 180

Your answer is B. 85

The value of x is 85°

The sum of interior angles of a triangle are 180°

If ∠A, ∠B, ∠C are three interior angles of a triangle,

Then ∠A+∠B+∠C = 180°

Given that, Two angles of the triangle are 40° & 55°

Let, the third angle be x.

Then, Sum of angles = 180°

     ⇒ 40°+55°+x = 180°

     ⇒ x+95° = 180°

     ⇒ x = 180°-95°

     ⇒ x = 85°

The value of x = 85°

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Answer:

CAB is 37 degrees

Step-by-step explanation:

90 + 53 = 143

180 - 143 = 37

Answer:

-12

Step-by-step explanation:

-9,-2=-11

-9,8=-1

-11-1=-12

Answer:

x ≥ 6

Step-by-step explanation:

|-3x| - 7 ≥ 11     The absolute value of -3x is 3x

3x - 7 ≥ 11        Cancel the 7 by adding it on both sides

3x ≥ 18            To get x by itself divide 3 on both sides

x ≥ 6

Answer:

Randy just added up the numbers on the numerator and denominator.

This is incorrect.

Correct way of adding the fractions given below:

Answer:  it is c which is the function was stretched by all the factor of 2

hope this help

Answer:

The singers can finish first through fifth in 360360 ways.

Step-by-step explanation:

The order of the singers is important, because they are ranked by positions. So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

\(P_{(n,x)} = \frac{n!}{(n-x)!}\)

In this question:

Top five singers, from 15 finalists. So

\(P_{(15,5)} = \frac{15!}{(15-5)!} = 360360\)

The singers can finish first through fifth in 360360 ways.

Answer:

45 degrees

Step-by-step explanation:

The 4 angles of a quadrilateral will add to 360.

We know 1 of them (angle B) is 90 degrees.

We can set up an equation to solve the others.

2x+3x+x+90 = 360

Now solve for x.

Start by combining the x terms together.

6x+90 = 360

6x = 360-90

6x = 270

(6x/6) = 270/6

x = 45 degrees

Check back to see if that makes sense and if the equation equals 360 when x is 45:

2x+3x+x+90 = 360

2(45)+3(45)+45+90=360.

Answer:

-97.6°F

Step-by-step explanation:

The formula to convert the temperature is 9/5d + 32. Substitite -72 for d and solve!

9/5(-72) + 32

-129.6 + 32

-97.6

Best of Luck!

Answer:

-97.6

Step-by-step explanation:

Answer:

you can just count the distance on the graph.. it's 5 units from Q to R

Step-by-step explanation:

Answer:

THE OTHER PERSON THAT ANSWERED GOT IT VERY WRONG! IT IS 10 UNITS AWAY!

Step-by-step explanation:

If you look closely it is counting by 2. Which means is going 2 4 6 8 12. Now you have to count by 2 giving u the answer. Is going to be ten because if u start from q going to r is 10 units away.

The important variables are the two types of test questions which can be represented as :

Variables are used to represent unknown values which could be worked out in a mathematical expression or problem.

The variables or unknown in this case are the type of test questions. which are : m for multiple choice, s for short answer

Therefore, the correct option is C. m for multiple choice, s for short answer

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Answer:

im having the same problem

Step-by-step explanation:

search it up on google maybe

sorry im trying my best

Given:

8x + 2y = 6

Let's identify the slope and y-intercept of the equation.

To identify the slope and y-intercept, we are to the slope-intercept form of a linear equation:

y = mx + b

Where:

m represents the slope.

b represents the y-intercept.

Now, let's rewrite the given equation to the slope-intercept form.

Subtract 8x from both sides of the equation:

Divide all terms by 2:

Therefore, the equation in slope-intercept form is:

y = -4x + 3

Now, compare both equations:

y = mx + b

y = -4x + 3

Thus, we have the following:

Slope, m = -4

y-intercept, b = 3

Therefore, the slope of the line is -4 , while the y-intercept is 3 .

ANSWER:

• Slope = -4

• y-intercept = 3

Answer:

the answer is equal to $1000cm

Given:

The image of polygon MNOP after a similarity transformation is WXYZ.

Each side of MNOP is 2 times as long as the corresponding side of WXYZ.

To find:

The scale factor of the dilation in the similarity transformation.

Solution:

We know that, the scale factor is

\(k=\dfrac{\text{Side of image}}{\text{Corresponding side of original figure}}\)

We know that, MNOP is the original figure and WXYZ is the image. MN is corresponding side of WX.

\(k=\dfrac{WX}{MN}\)             ...(i)

Each side of MNOP is 2 times as long as the corresponding side of WXYZ.

\(MN=2WX\)

\(\dfrac{1}{2}=\dfrac{WX}{MN}\)

\(0.5=\dfrac{WX}{MN}\)           ...(ii)

From (i) and (ii), we get

\(k=0.5\)

Therefore, the correct option is B.

Answer:

positive and odd

Step-by-step explanation:

If a is a negative odd number, then a² can't be negative, because a number squared is always positive.

I'll illustrate this with an example.

Let's choose -7 as an example. Instead of a.

-7² = 49

So we see that the result is positive & odd.

So the words that describe a^2 are positive and odd.

Answer:

the answer is 1.3x + 2 ≥ 20

Step-by-step explanation:

the tree is already 2ft which mean it would need to be added to the rate of growth, 1.3 by the amount of year to find out the height. The question is saying however that I can be at least 20ft. so no less than 20 which is why the greater or equal to sign is used (≥)

Answer:

a = 99

b = 51

Step-by-step explanation:

We can translate this problem into a linear equation. We know that:

2b - 3 = a

and

a + b = 150

We will start by minusing b from both sides in the second equation, giving us:

a = 150 - b

Then, we will substitute this into our second equation, giving us:

2b - 3 = 150 - b

We will add 3 and b to both sides, giving us:

3b = 153

Then we divide by 3:

b = 51

Now, we will substitute this into our second equation, giving us:

a + 51 = 150

Subtract 51 from both sides gives us:

a = 99

So, the a piece is 99 yards long, and the b piece is 51 yards long.

a = 99

b = 51

Hope this helped!

The values of a and b using the factor theorem for the polynomial f(x), we set f(1) and f(-1) equal to zero. Solving the resulting system of equations, we find that a = 12 and b = -1.

To find the values of a and b using the factor theorem, we need to use the given factors (x - 1) and (x + 1) and the fact that they are roots of the polynomial f(x).
The factor theorem states that if (x - c) is a factor of a polynomial, then f(c) = 0. Therefore, we can set x = 1 and x = -1 in the polynomial f(x) to get two equations.
First, let's substitute x = 1 into f(x):
f(1) = (1)^3 + a(1)^2 + b(1) - 12
f(1) = 1 + a + b - 12
Next, let's substitute x = -1 into f(x):
f(-1) = (-1)^3 + a(-1)^2 + b(-1) - 12
f(-1) = -1 + a - b - 12
Since (x - 1) and (x + 1) are factors, f(1) and f(-1) must equal zero. Therefore, we can set the two equations equal to zero and solve for a and b:
1 + a + b - 12 = 0
-1 + a - b - 12 = 0
Rearraning the equations, we have:
a + b = 11
a - b = 13
Now, we can solve this system of equations. Adding the two equations, we get:
2a = 24
a = 12
Substituting the value of a into one of the equations, we find:
12 - b = 13
b = -1
Therefore, the values of a and b are 12 and -1 respectively.

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Answer:

98 bracelets are in the box

Answer:

112

Step-by-step explanation:

Answer: 88.2

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