If (x−4)2=7, what values of x make the quadratic equation true?

If (x4)2=7, What Values Of X Make The Quadratic Equation True?

Answers

Answer 1

Answer:

Step-by-step explanation:

Take the square root of both sides.

sqrt(x - 4)^2) = +/- sqrt(7)

x - 4 = +/- sqrt(7)                Add 4 to both sides

x = 4 +/- sqrt(7)

Answer: C


Related Questions

Owen is designing a new board game, and is trying to figure out all the possible outcomes. How many different possible outcomes are there if he spins a spinner with 5 equal-sized sections labeled Monday, Tuesday, Wednesday, Thursday, Friday, rolls a fair die in the shape of a pyramid that has four sides labeled 1 to 4, and spins a spinner with three equal-sized sections labeled Walk, Run, Stop?

Answers

Answer:

60

Step-by-step explanation:

Multiply the days by the die (20) and multiply that by the sections (60)

A taxicab service charges customers by the mile. The graph
shows the number of miles a taxicab drives and the amount of
money the customer pays.
Which statement best describes the rate of change for the
situation?
The amount a customer pays increases $0.50 per
mile driven
The amount a customer pays increases $0.60 per
mile driven
The amount a customer pays increases $12 per mile
driven.
The amount a customer pays increases $21 per mile
driven

Answers

Answer:

The second option: The amount a customer pays increases $0.60 per  mile driven.

Step-by-step explanation:

As seen on the graph, we are given the points (20,12) and (35,21).

This means that at 20mi driven, the amount paid is $12, and at 35mi driven, the amount is $21.

To find the rate of change we divide the distance driven by the cost to find the cost per mile:

20/12 = 0.6

35/21 = 0.6

The slope is 0.6, so it costs an extra $0.6 for every mi driven. Therefore it is the second option: The amount a customer pays increases $0.60 per  mile driven.

Hope this helped!

Answer:

The amount a customer pays increases $0.60 per mile driven.

Step-by-step explanation:

$0.6/mi is the rate of change, y = mx + b, so m.is also called rate of change & b is the initial value of x, in the graph b = 0. making m the subject of the equation, then m(roc) = 0.6.

a piece of cloth was 30 feet long. how long is this cloth in yards? one yard = 3 feet​

Answers

Answer:

10 yards

Step-by-step explanation:

Every 1 yard is 3 feet, the cloth is 30 feet
30 ÷ 3 = 10

The cloth is 10 yards.

Hope this helps!

Plz help me complete this table

Answers

3 and 6 for the top ones

What is the slope intercept form of 2x+2y=10 (y=mx+b no extra words or comments)

Answers

Answer:

[tex]y=-x+5[/tex]

Step-by-step explanation:

[tex]2x+2y=10\\2y=10-2x\\y=-2/2x+10/2\\y=-x+5[/tex]

Solve the equation

3/2 - 6x) + 1 = 3 – 5x.

Answers

Answer:

x = - 1/2

Step-by-step explanation:

(3/2 - 6x) + 1 = 3 - 5x

-6x + 5/2 = 3 - 5x

5/2 = 3 - 5x + 6x

5/2 = 3 + x

5/2 - 3 = x

-1/2 = x

x = -1/2

Please mark me the brainliest!?!

[tex] \frac{3}{2} - 6x +1 = 3 - 5x \\ [/tex]

Plus sides 6x

[tex] \frac{3}{2} - 6x + 6x + 1 = 3 - 5x + 6x \\ [/tex]

[tex] \frac{3}{2} + 1 = 3 + x \\ [/tex]

Subtract sides -3

[tex] \frac{3}{2} + 1 - 3 = 3 - 3 + x \\ [/tex]

[tex] \frac{3}{2} - 2 = x \\ [/tex]

[tex] \frac{3}{2} - \frac{4}{2} = x \\ [/tex]

[tex]x = - \frac{1}{2} \\ [/tex]

Done.....♥️♥️♥️♥️♥️

Now select point C and move it around. Do you observe any change in the relationship between the three angles?

Answers

Answer:

No. <BAC and <CAD remain congruent, and m<DAB is still the sum of m<BAC and m<CAD

Step-by-step explanation:

Answer:

No. ∠BAC and ∠CAD remain congruent, and m∠DAB is still the sum of m∠BAC and m∠CAD.

Step-by-step explanation:

Last summer, 80 students signed up for a summer trip to Washington, D.C. This summer, 94 students signed up. To the nearest percent, what is the percent change in the number of students who signed up for the trip?v

Answers

Answer:

94-80=14/80×100=35÷2=17.5

16.8=14c Please answer

Answers

Answer: C=1.2

Explanation: 14c=16.8 divide both sides by 14 giving you 1.2 then to make sure, multiply 1.2 by 14 which should give you 16.8

How can x-2/3=5/6 be solved for x in one step

Answers

Answer:

12

Step-by-step explanation:

F(x) = - 2x -4
What is x when F(x) = 10.
Your answer:
a. 11
b. -8
C.-7

Answers

Answer:

C

Step-by-step explanation:

f(x) = -2x-4

When, f(x) = 10,

-2x-4 = 10

-2x = 14

x = -7

Answer is C

Samantha Ran 10x-9 Miles and Sam ran 9x-10 miles WHATS the difference

Answers

Answer:

10x-9-(9x-10)

=10x-9-9x+10

=10x-9x+10-9

=x+1

Answer:x+1

Step-by-step explanation:

Which is one reason why this expression is equal to 0 0 ? Math item stem image CLEAR CHECK The same number appears in the numerator and denominator. The sum of any number and its opposite is 0 0 . The expression does not equal 0 0 . The product of any numb

Answers

Answer:

sorry i didnt understand try explain more better

Answer:

Answer is c

Step-by-step explanation:

I don’t know what to do with

Answers

Answer:

above is the solution to the question

Answer:

the answer will be 5.3. area is 0ne over two base times height

Find the area
———————-

Please help i’ve been stuck for so long

Answers

Check the picture below.

[tex]\stackrel{\textit{\Large Areas}}{\stackrel{semi-circle}{\cfrac{1}{2}\pi (2)^2}~~ + ~~\stackrel{rectangle}{(4)(9)}~~ + ~~\stackrel{triangle}{\cfrac{1}{2}(5)(4)}}\implies 2\pi +36 + 10~~ \approx ~~ 52.28[/tex]

can someone do this sheet or me? thx!

Answers

Number 5 is 27,258 …………………………………


Please help me answer this question please?

Write the resulting equation of C^2=N^2

Answers

Answer:

(c+n)(c-n)=0 I think I'm not so sure

In this square, all the angles are equal. What is the measure of angle x°?

720°
180°
90°
360°

Answers

Answer:

90degrees

Step-by-step explanation:

I'm pretty sure, terribly sorry if I'm wrong

~Animaljamissofab ♥

nice green square lol

90°  is the measure of angle x°.

What is an angle?

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.

We know that, a ray is a line that continues on forever inn one direction with a point at it's start.

Here, given that,

the figure is a square,

so, all its angle = 90 degrees

Now, the x = (180-90)=90

Hence, 90°  is the measure of angle x°.

To learn more on angle click:

brainly.com/question/28451077

#SPJ2

a square has a diagonal length of 5. find the side length of the square. express your answer in simplified radical form.

Answers

Answer:

Step-by-step explanation:

12 points!! plz help

Answers

Answer:

The answer would be C im positive

Step-by-step explanation:

Need help please!!! Worth 15 points

Answers

I believe it’s 1 1/4 inch

Equation:

10 3/4 - 9 1/2


Change the 1/2 into 2/4


10 3/4
- 9 2/4
————
1 1/4

Okay I need help:
F(x)=x^2-5 find f(3)

Answers

f(x) = x^2 -5

Find f(3)

This means find x when it is 3 so just substitute 3 for x

f(3) = 3^2 -5

= 9 - 5

f(3) = 4

Answer:

f(3)=4

Step-by-step explanation:

f(x)=x^2-5

f(3)=3^2-5

f(3)=3*3-5

f(3)=9-5

f(3)=4

find the value of the expression |x|/x id x=-8,-5,1,7,128 write the expression without the absolute value symbol for these values of x x>0

Answers

Using the definition of the absolute value function, it is found that:

The result of the expression is of -1 for x = -8 and x = -5.The result of the expression is of 1 for x = 1, x = 7 and x = 128.

What is the absolute value function?

It measures the distance of a point x to the origin, and is defined by:

[tex]|x| = -x, x < 0[/tex]

[tex]|x| = x, x \geq 0[/tex]

As for the expression used in this problem:

[tex]\frac{|x|}{x} = -\frac{x}{x} = -1, x < 0[/tex]

[tex]\frac{|x|}{x} = \frac{x}{x} = 1, x > 0[/tex]

Hence:

The result of the expression is of -1 for x = -8 and x = -5.The result of the expression is of 1 for x = 1, x = 7 and x = 128.

More can be learned about the absolute value function at https://brainly.com/question/24734454

Answer:

just to be clear the answers are here:

Step-by-step explanation:

If x=1, then |x|/x= 1

If x=7, then |x|/x=1

If x=128, then |x|/x=1

If x>0, then |x|/x=1

If x=-8, then |x|/x=-1

If x=-5, then |x|/x=-1

If x<0, then |x|/x=-1

I hope u have a nice day :)

-4 (w+1) = -24

What does w equal?

Answers

Answer:5

Step-by-step explanation:

24/4=6

6-1=5

Answer:

w = 5

Step-by-step explanation:

-4 (w+1) = -24

-4w -4 = -24    | +4

-4w = -20        | :(-4)

w = 5

plz help me with this

Answers

Answer: 2/5

Step-by-step explanation: 2/5 because it is less than 1 so it shrinks.

HELP ASAP PLEASE WILL MAKE BRAINLEST (show work if possible)

Answers

Answer:65

Step-by-step explanation: sorry if its wrong

Identify the value of y.
(5y-6) = (2y×9)-32

I need help

Answers

Answer:

y=2

Step-by-step explanation:

5y-6=(2y*9)-32

5y-6=18y-32

32-6=18y-5y

26=13y

26/13=13y/13

2=y

y=2 [Answer]

Please rate and mark me the brainiest!!

Hey there!

Let's solve your equation step-by-step.

[tex]\fbox{5y−6=2y(9)−32}[/tex]

Step 1: Simplify both sides of the equation.

[tex]\fbox{5y−6=2y(9)−32}[/tex]

[tex]\fbox{5y+−6=18y+−32}[/tex]

[tex]\fbox{5y−6=18y−32}[/tex]

Step 2: Subtract 18y from both sides.

[tex]\fbox{5y−6−18y=18y−32−18y}[/tex]

[tex]\fbox{−13y−6=−32}[/tex]

Step 3: Add 6 to both sides.

[tex]\fbox{−13y−6+6=−32+6}[/tex]

[tex]\fbox{−13y=−26}[/tex]

Step 4: Divide both sides by -13.

[tex]\fbox{−13y/−13 = −26/−13}[/tex]

[tex]\fbox{y=2}[/tex]

Answer:

[tex]\fbox{y=\fbox{2}}[/tex]

Write the expanded form of the expression
y(0.25 +6)

Answers

Answer:

0.25y + 6y

Step-by-step explanation:

multiple everything in the brackets by y

675 x 78 : 567 =
can you stop deleting my question.

Answers

Answer:

675 x 78/567

First let's find the product of the numerator;

(675 x 78) = 52,650

Now we divide by 567:

52,650/567 = 92.85, which is around 92.90

A rectangular prism has a length of 10 in., a width of 2 in., and a height of 312 in. the prism is filled with cubes that have edge lengths of 12 in. how many cubes are needed to fill the rectangular prism? enter your answer in the box. to fill the rectangular prism, cubes are needed.

Answers

Step-by-step explanation:

that is a strange question. you will see in a moment why.

I suspect your teacher just wants to do the exercise to have a large volume and then see how often a small volume fits into that large volume.

we can do that quickly:

large volume = 10×2×312 = 6240 in³

small (cube) volume = 12×12×12 = 1728 in³

so, we could put 6240/1728 = 3.611111111... cubes into a volume as the prism has.

now why did I phrase this so strangely ?

because the prism not only has volume but also a shape.

it is a narrow but high container with the small dimensions being 10 in and 2 in.

the cubes have a side (or edge) length of 12 in. that is not compatible with the 10 in and 2 in cubes of the prism.

not a single one cube would fit into the prism.

so, the realistic answer is : 0 cubes.

if it does not matter that the cubes would stand out of the prism, we could simply stack a single file of cubes along the height of the prism :

312/12 = 26 cubes.

so, we could stack 26 cubes inside the height of the prism.

so, I conclude, this is either a trick question (and 0 is the true answer), or there is a mistake in the question.

possibly in the dimensions of either the prism or the cubes.

for example, let's assume the cubes have an actual side length of 2 in (and not 12 in).

then the small (cube) volume is : 2×2×2 = 8 in³

and they will fit into the prism also shape wise.

6240/8 = 780 cubes

so, we would need 780 cubes of that size to fill the prism.

or, as another example, the cubes have a side length of 1/2 in.

then the small (cube) volume = 1/2³ = 1/8 in³

6240/(1/8) = 6240 × 8 = 49,920 cubes

in that case we would need 49,920 cubes to fill the prism.

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