HElp Find the line of symmetry for the parabola whose equation is y = 2x∧2 - 4x + 1.
x = 2
x = -1
x = 1

Answer:

I'm not 100% sure but I think the answer is step 2

Step-by-step explanation:

its the only step involving addition/subtraction properties rather than multiplicative/ division properties

HOPE THIS HELPS!!! :)

PLEASE LET ME KNOW IF IM WRONG!!!

Step 2, is the subtraction property of equality, Option A is correct.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here, while reviewing the steps,
In step 2, there is an elimination of 7, by adding 7 on both side because both sides consist of  -7,
When +7 add to both side, it becomes,
-7 + 7 rearranging gives, 7 - 7 = 0

Thus, Step 2, is the subtraction property of equality, Option A is correct.

Learn more about arithmetic here:

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Answer:16.8 ur welcs

Step-by-step explanation:

Answer:

Assuming that you meant 4+√19 is C.

Step-by-step explanation:

[tex]x^2-8x-3=x^2-2(4)x-3=x^2-2(4)x+16-3-16\\(x-4)^2-19\\(x-4)^2-19=0\\(x+4)^2=19\\x+4=\sqrt{19} \\x=-4+-\sqrt{19}[/tex]

Answer:

Decrease;Decrease

Step-by-step explanation:

Answer: A

Step-by-step explanation:

Divide each total by 5 to get 5, 200, 20, 2.50.  $5 per value meal is the most fair price.

Hope it helps <3

If the total is 25$, then each value meal would equal 25/5 = 5$, which is reasonable. so option A is correct.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

A. If the total is 25$, then each value meal would equal 25/5 = 5$, which is reasonable.

B. If the total is $1000, then each meal would equal 1000/5 = $200, which is not reasonable

C. If the total is $100, then each meal would equal 100/5 = $20, which is not a reasonable price for a value meal

D. If the total is $10, then each meal would equal 10/5 = $2 which is not a reasonable price for a value meal.

Hence, If the total is 25$, then each value meal would equal 25/5 = 5$, which is reasonable. so option A is correct.

Learn more about the unitary method;

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Answer:

B and E

Step-by-step explanation:

For every 3 minutes she spend running, she spends 5 minutes lifting weight so that would be [tex]\frac{3}{5}[/tex] as fraction.

So, therefore, the answers are B and E.

Answer: The Awnser to this equation is C, AE is equal to 25

Answer:

C. 25cm

Step-by-step explanation:

So D and B are too long even longer than AD so that brings us to A or C.

A is too small.

Thus, by logic and reasoning C. 25cm is the correct answer.

Answer:

P = 3

Q = -4

R = 22

Step-by-step explanation:

Expand both sides and compare coefficients.

5Px^2 -PQx +10x -2Q = 15x^2 + Rx +8

Compare coefficients of x^2

5P = 15  => P = 3

Compare constant terms

-2Q = 8

Q = -4

Compare coefficients of x

-PQ + 10 = R

-(3)(-4) + 10 = R

R = 10 + 12 =22

Answer:

(13,15)

Step-by-step explanation:

If the trapezoid were to be reflected over the line segment BC, the new coordinates of point A would be (13,15) as it moves to right 5 points from BC sides.

Answer:

(B) 13,15

Step-by-step explanation:

If we look at point A in relation to point B, we see that it's 5 units to the left and 3 units down from point B, therefore making it at (3,15). Now, if we reflect across line BC (which is a y-axis) then we change the X value, not the y value. If the line BC is located at X=8, then the X value will be 8+5, since point A is 5 units away from the line BC. The y value will stay the same because we are reflecting over only one axis. 8+5 = 13, and the y stays at 15, so the new point value of A would be (13,15).

Hope this helped!

Answer:

C) 2^4x=2^3x-3

Step-by-step explanation:

2^4x=2^3x-3

(2³=8)

Answer:

I think the answer is the 3rd one, but i'm not sure.

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.

[tex]2x + 8x - 10 + 6[/tex]

Collect like terms

[tex] = 10x - 10 + 6[/tex]

Calculate the sum

[tex] = 10x - 4[/tex]

Factor out 2 from the expression

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

2.

[tex]3(x + 7)[/tex]

Multiply each term in the parentheses by 3

[tex] = 3x + 3 \times 7[/tex]

Multiply the numbers

[tex] = 3x + 21[/tex]

3.

[tex](x + 2)(x - 3)[/tex]

Multiply each term in the first parentheses by each term in the second parentheses ( FOIL )

[tex] = x(x - 3) + 2(x - 3)[/tex]

Calculate the product

[tex] = {x}^{2} - 3x + 2x - 2 \times 3[/tex]

Multiply the numbers

[tex] = {x}^{2} - 3x + 2x - 6[/tex]

Collect like terms

[tex] = {x}^{2} - x - 6[/tex]

Hope this helps..

best regards!!

Answer:

It's totally false to say that the student has special needs or it's totally false to say the student doesn't belong in the classroom.

Step-by-step explanation:

De Morgan's Laws

Not (A and B) is the same as Not A or Not B

Not (A or B) is the same as Not A and Not B

SO:

It's totally false to say that the student has special needs or it's totally false to say the student doesn't belong in the classroom.

Answer:

C. 5.5 = 27.5

Step-by-step explanation:

The customer did not provide any supplies which means that the number 3.25 should not even be apart of the answer choice because it is not being deducted.

5.50 multiplied by how many widows (w) are washed should equal 27.50

Therefore C. 5.5 = 27.5 is the answer

Answer:

C) 5.5 w = 27.5

Answer:

Step-by-step explanation:

To answer this question properly one would need access to a table or graph of income versus current educational level, and that information would have to be collected in a study involving a focus group (as such data for all people would just not be available.  In what context did you find this question?  

Answer:

A no-doest pass the vertical line test

Step-by-step explanation:

the vertical line test is a test saying any line is functional if when several vertical lines are drawn, the function does not pass through any line more than once

hope this helps:)!

Answer: B.

k=3

Step-by-step explanation:

g(x) is 3 units higher than f(x)

so k must be equal to 3

Answer:

it is b i think

k=3

Step-by-step explanation:

Answer:

8.5 units

Step-by-step explanation:

x is the adjacent side, the side that's 19 units is the opposite side.

Given the adj and the opp sides, use tangent.

tanθ= opp/adj

tan 66°= 19/ x

x(tan66°)= 19

x= 19/(tan 66°)

x= 8.5 units (nearest tenth)

Answer:

The number of students in each van = 14

The number of students in each bus = 43

Step-by-step explanation:

Let the number of students that can fill a van be v.

Let the number of students that can fill a bus be b.

The senior class at High School A rented and filled 13 vans and 9 buses with 569 students.

13 vans will have (13v) students

9 buses will have (9b) students

13v + 9b = 569

High School B rented and filled 14 vans and 3 buses with 325 students

14 vans will have (14v) students.

3 buses will have (3b) students.

14v + 3b = 325

Combining these two simultaneous equations

13v + 9b = 569

14v + 3b = 325

Solving simultaneously,

v = 14 students.

b = 43 students.

Hope this Helps!!!

Answer:

XY = 24 units

Step-by-step explanation:

First of all, we need to some construction here.

Let us draw a line parallel to XY from point P towards OX, which cuts OX at point Q.

Please refer to the attached figure.

Now, Let us consider triangle OQP which is a right angled triangle, with

Hypotenuse, OP = 26 units

Height, OQ = OX - PY = 16  - 6 = 10 units

Base, PQ = ?

We can use pythagorean theorem here to find the value of PQ.

According to pythagorean theorem:

[tex]\text{Hypotenuse}^{2} = \text{Base}^{2} + \text{Perpendicular}^{2}\\\Rightarrow OP^{2} = PQ^{2} + OQ^{2}\\\Rightarrow 26^{2} = OQ^{2}+10^{2} \\\Rightarrow PQ^{2} = 26^{2}-10^{2} \\\Rightarrow PQ^{2} = 676-100 \\\Rightarrow PQ^{2} = 576\\\Rightarrow PQ= 24\ units[/tex]

Now, we can see that side PQ is equal to side XY.

[tex]\therefore[/tex] XY = 24 units is the answer.

Answer:

[tex]14.\:\:\overline{RT}=3.3\:ft[/tex]

Step-by-step explanation:

Using the definition of similar triangle, we have the equation for problem no. 14 as:

[tex]\frac{\overline{QT}}{\overline{RT}}=\frac{\overline{RT}}{\overline{TS}}\\\\\frac{5}{x}=\frac{x}{2.2}\\\\\Rightarrow x=3.3[/tex]

Best Regards!

Answer:

  43.96 in^2

Step-by-step explanation:

The net shows the areas of the parts of the cone, so you simply need to add them up to get the total surface area.

  31.4 in^2 +12.56 in^2 = 43.96 in^2

Answer:

43.96 in.2.

Step-by-step explanation:

The surface area of a cone is the triangular shape and its circular base.

In this case, the top of the cone is 31.4 inches squared in area, and the circular base is 12.56 inches squared.

So, the surface area of the cone is 31.4 + 12.56 = 43.96 inches squared.

Hope this helps!

Answer:

The answer is [tex]-\frac{31x^2}{10}[/tex]- 6x+7

Hope this helps!

Answer:

125

Step-by-step explanation:

So saying something went up by 25% means that it is essentially

X + .25X

So in this case X = 100 and .25X = 25

So 100 + 25 = 125

Answer: z score is -19

Work Shown:

x = 22 is the raw score

mu = 60 is the mean

sigma = 2 is the standard deviation

z = (x-mu)/sigma = formula to find z scores

z = (22 - 60)/2

z = -38/2

z = -19

The z score of -19 means we are 19 standard deviations below the mean. Anything beyond 3 standard deviations is often considered unusual/rare as most of the data in the normal distribution is within 3 standard deviations (approximately 99.7% of the distribution)

Answer:

I believe it is:

slope-intercept form: y=3x+6

standard form: -3x+y=6 or 3x-y=-6

point slope-form: y-0=3(x+2)

Step-by-step explanation:

First, I put 3x-y=11 into slope-intercept form:

Subtract 3x from both sides: 3x-3x-y=11-3x

That becomes -y=-3x+11

Divide both sides by -1: -y/-1=(-3x+11)/-1

That becomes y=3x-11\

Then, the definition of a parallel line is having the same slope but different y-intercepts, so I dropped the -11 as the y-intercept, and I rewrote the equation as y=3x+b, where b is the y-intercept.

Now, I have to find the y-intercept of the parallel line, so I plug the coordinates (-2,0) into the equation for x and y to solve for the y-intercept

Write the equation out with what you have so far: y=3x+b

Substitute the coordinates (-2,0) in for x and y: 0=3(-2)+b

That becomes 0=-6+b

Add 6 to both sides: 0+6=-6+6+b

That becomes 6=b, which means that 6 is your y-intercept.

Finally, you have gathered everything you need to write the parallel line in equation format.

The parallel line's equation is

in slope-intercept form: y=3x+6

in standard form: -3x+y=6 or 3x-y=-6

in point-slope form: y-0=3(x+2)

Answer:

It is not correct.

Step-by-step explanation:

If you plug 4 in for x, you get -2*4+5=13. This simplifies to: -8+5=13. This is an untrue statement since -8+5 is actually -3, not 13.

Hope this is helpful! :)

Answer:

undefined

Step-by-step explanation:

So with the following equation,

-2x + 5 = 13

we plug in 4 for x

-2(4) + 5 = 13

-2 * 4 = -8

-8 + 5 = 13

-8 + 5

-3 = 13

-3 is not 13 so it is undefined

Thus,

the answer is undefined.

Hope this helps :)

Answer:

B: (-5, 6)

Explanation:

If this is being reflected over the line y = x, then the formula to solve would be (b, a), so therefore the answer would be B.

Answer:

9.42naturaleza cordero y otras cosas tontas bla bla respuesta

Step-by-step explanation:

Answer:

113.0

Step-by-step explanation:

if righ mark as brainliest

Answer:

answer is a

Step-by-step explanation:

i took the exam