How can I solve this quadratic using the square root properly?

How Can I Solve This Quadratic Using The Square Root Properly?

Answers

Answer 1

Answer:

x = +3

Step-by-step explanation:

4x² = 36

sqareroot both side we get,

√4x² = √36

2x = 6

x = 6/2

x = +3

Thus, The answer is +3

-TheUnknownScientist

Answer 2

Answer:

4x^2 = 36

________ x^2 = 9. square root of 9

4. = 4. x = 3

Step-by-step explanation:

Divide both sides by 4 to isolate the square root.

So, you will end up with x^2 = 9

then take the square root of 9,

square root of 9 is 3.

So x = 3


Related Questions

a set of speakers that regularly cost $160 are on clearance for 35% off. Find the sales price of the speakers

Answers

Answer:

I'm pretty sure this is the answer....

The speakers are $56.

Sorry if i'm wrong. :')

Step-by-step explanation:

Answer:

You want to buy something that costs $160, and it's on sale for 35% off. What is the item's sale price?

First, convert the 35% to a real mathematical number. For percents, this is always done by dividing the 35% by 100%, or 35% / 100% = 0.350.

Second, find out what 35% of $160 is. This is the amount of the sale discount. This is always found by mulitplying 0.350 by the item's cost $160, like this:

0.350 x $160 = $56.00.

So for this sale, you'll save $56.00 on this item.

This means, the cost of the item to you is

$160 - $56.00 = $104.00.

Alternatively, you can think about it this way. The item is 35% off. This means you'll pay 65.000% of the total cost (100% - 35% = 65.000%).

Now what's 65.000% of the total cost?

0.650 x $160 = $104.00.

Just like the result above, the sale price on the item is $104.00

What is the area of this parallelogram?


104 m²

88 m²

56 m²

32 m²

Answers

Answer: To find area of a rectangle, multiply its base (length) by its height (width). Plug in the base, 7 meters, and the height, 8 meters. So the area of Rectangle DFBE is 56 square meters.

88m

HOPE THIS HELPS

perimeter 254 meters and dimension measures 6 meters​

Answers

Answer:

didn't even ask a question

Step-by-step explanation:

impossible to answer without a question

Which function has a greater rate of change?
pls help me lol

Answers

Yea I’m sorry but I have no idea

Evaluate x2 + 6, when x=8
Help.

Answers

I think it’s 22! I hope this helped
22
8(2)+6=22
you plug in 8 for x then, multiply 8 and 2 to get 16 then, you add the 6 and get 22

Find the value of the variable:

Answers

Answer:

∠v = 76°

Step-by-step explanation:

since it is an isosceles triangle, both angles at the top of the picture are 52°.

∠v = 180° - 52° - 52° = 76°

Maria and Veronica go to a restaurant Maria orders 4 taco’s and a drink, and pays $7. Veronica orders 3 taco’s and two drinks, and pays $7.75. Write a system of equations and solve to find the cost of each taco and drink.

Answers

Answer:

y=7+4 and y=7+3

Step-by-step explanation:

(-4x + 5) - (6x + 7) = 0
What is the solution to the equation?
O x = 6
O x= 1
O x = -0.2
O = -1.2

Answers

The answer of this math question is C) X= -0.2

2
15% of a number is 54. What is of that number?​

Answers

Answer:36

Step-by-step explanation:

the length and the breadth of a rectangular Garden are 0.8 km and 0.6 km respectively find the length of a wire required to put a fivefold fans around the garden​

Answers

Answer:

Length of wire required for 5 fold of garden = 14 km

Step-by-step explanation:

Given:

Length of rectangle garden = 0.8 km

Width of rectangle garden = 0.6 km

Find:

Length of wire required for 5 fold of garden

Computation:

Perimeter of rectangle = 2[l + b]

Perimeter of garden = 2[0.8 + 0.6]

Perimeter of garden = 2[1.4]

Perimeter of garden = 2.8 km

Length of wire required for 5 fold of garden = 5 x Perimeter of garden

Length of wire required for 5 fold of garden = 5 x 2.8

Length of wire required for 5 fold of garden = 14 km

expand expression (3x-7)(2x+7), without using long multiplication find 53×47

Answers

Answer:

6x² + 7x - 49

53×47 = 2491

Step-by-step explanation:

(3x-7)(2x+7)

6x² + 21x - 14x - 49

combine like terms:

6x² + 7x - 49

Josephine owns a dress shop and purchases a dress for $20. She decides to mark up the dress 35% in order to sell it to her customers. What is the amount of profit Josephine will make when she sells a dress to a customer? o Josephine will make a profit of $35 O Josephine will make a profit of $27 O Josephine will make a profit of $10 O Josephine will make a profit of $7​

Answers

Answer:

Josephine will have $15 profit

Sammy draws 3 identical rectangles on his paper. If each rectangle has a base of 15 cm and a height of 12 cm, what is the total area of all 3 rectangles added together?​

Answers

Answer:

540

Step-by-step explanation:

If you do 15x12 which is the formula for area for a rectangle, you get 180. That's only the area of one rectangle but if you multiply it by 3 you get 540 for the areas added together.

Answer:

540 cm

Step-by-step explanation:

you multiply 15 x12 If you are getting an area 15 x12=180 then you multiply 180 by 3  180x3=540 I think


What is the circumference of the circle with a radius of 3.22 Round to the nearest tenth.

Answers

To calculate the circumference multiply the radius by 2 to get the diameter. Multiply the result by π, or 3.14 for an estimation.

3.22x 2 = 6.44

6.44x π= 20.23185668911827

rounded to the nearest ten: 20.2

Find the area of the figure

Answers

Answer:

145.1327

Step-by-step explanation:

Divide the given figure up into two smaller figures. Calculate the area of each of the smaller figures and then add up the areas. One can divide this figure into a rectangle with sides (8 and 15), and a semi-circle with a diameter of (8m).

Calculate the area of the rectangle, the formula to calculate the area of a rectangle is ([tex]base*height[/tex])

8 * 15 = 120

Calculate the area of the semi-circle. The formulas for the area of a semi-circle is the formula for the area of a circle divided by (2), ([tex]A=\frac{(pi)r^2}{2}[/tex]). Where (A) represents the are, (pi) represents the number (3.1415...), and (r) represents the radius of the circle. The radius is always half of the diameter of a cricle. Substitute in the given values, and solve

[tex]\frac{(pi)(\frac{8}{2})^2}{2}[/tex]

[tex]=\frac{(pi)(4)^2}{2}[/tex]

[tex]=\frac{(pi)16}{2}[/tex]

[tex]=8(pi)[/tex]

~25.1327

Now add up the two values,

120 + 25.1327

= 145.1327

10 points is all i have. PLEASE HELP!!

Answers

Answer:

Step-by-step explanation:

Answer:

Look Below

Step-by-step explanation:

2. X - 5 = -2 / X = 3

3. 2X = 10 / X = 5

4. 5X + 10 = 10 / X = 0

If you find any fault in my answers please let me know! Thanks! Have a good day! Hope this helps!

What is the equation of the following line? ​

Answers

Answer:

E

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

slope = rise / run = 7 / 1 = 7

m = 7

y-intercept = 0

So:

y = 7x + 0

y = 7x

Its says in question 4 tue horizontal translation is A right.?

Answers

Answer:

Here we have:

g(x) = 3*f( 2*x - 2) - 1

We want to know the horizontal translation used here.

We need to discuss two types of transformations here.

horizontal translation.

If we have a function f(x), a horizontal translation of N units is written as:

g(x) = f(x + N)

if N is negative, the translation is to the right.

if N is positive, the translation is to the left.

Horizontal dilation.

For a function f(x) an horizontal dilation of scale factor k is written as:

g(x) = f( x/k)

You can see that in our function we have both of these transformations.

Because we compare the translation with f(x), we assume that the horizontal translation is the first thing we did, then we must have

translation:

g(x) = f(x + N)

and now a horizontal dilation of scale factor k

g(x) = f( (x + N)/k)

Then we must have that the argument of the above function is the same as the argument of the given function.

(x + N)/k = 2*x - 2

then:

k = 1/2

(x + N)/1/2 = 2*x + 2*N = 2*x - 2

2*N = -2

N = -2/2 = -1

This means that we have a translation of 1 unit to the right.

Answer it right and i'll try to give you brainliest.

Answers

Answer:

384 cm²

Step-by-step explanation:

Since it is a square pyramid, the total surface area of the pyramid is the area of its square base plus the area of its 4 triangular faces.

[tex]\boxed{area \: of \: triangle = \frac{1}{2} \times base \times height }[/tex]

Area of a triangular face

= ½ ×12 ×10

= 60 cm²

[tex]\boxed{area \: of \: square = side \times side}[/tex]

Base area of pyramid

= 12 ×12

= 144 cm²

∴ Surface area of pyramid

= 4(60) +144

= 240 +144

= 384 cm²

Find the volume of the cylinder. Round your answer to the nearest tenth.
3ft.
10 ft.
Enter only the numerical value with the units of measure.

Answers

V=pi(radius)^2*height so the answer is 282.7 feet cubed

the larger of two numbers is twice the smaller. if the larger is x what is the smalller. I NEED HELP PLSSS!!

Answers

Answer:

Easy. The smaller is x/2.

Step-by-step explanation:

2 times is larger, so larger divided by 2 is the smaller.

Miranda wants to buy as many collectible dolls as possible, for $2.50 each. If she has $45.00 to spend, how many dolls can she buy?
Which equation BEST represents this situation?

Answers

Answer: Miranda can buy 18 dolls.

Step-by-step explanation:  Equation: 45 divided by 2.50

how do you graph the inequality of x<-3

NO LINKS I WILL REPORT YOU​

Answers

Answer:

The graph is all of the plane on and to the right of the vertical line whose equation is x=-3.  Take two points whose x-coordinates are -3, say (-3,-3), and (-3,3),  connect with a straight line.

Step-by-step explanation:

Solve the following inequality.

PLEASE HELP ASAP

Answers

no solution.

The inequality doesn’t equal anything, or at least no numbers humans are aware of.

Find the area of the polygon to the nearest square inch.

Answers

Answer:  70

Step-by-step explanation:

PLEASE HELP FAST ILL MARK AS BRAINLIEST!!!!! :((

Answers

Hi
Here it is!!!

I did
3x-2=4x
3x-4x=2
-1x=2
-x=2/1
-x=2
x=-2


The DrJOKER

Write the equation for the line that passes through the points (3, 18) and (-3,0)

Answers

y= 3x + 9 hope this helpsssssssss

if x = -6 then -x 2 =
- (-6) 2 =

Answers

Answer:

12

Step-by-step explanation:

negative times a negative equals a positive.

so, 6 times 2 is 12.

Answer: 12

Step-by-step explanation:

Negative number multiplied by negative numbers get you to positive numbers so 6x2 is going to get you to 12. I think someone said this before me but here you go!

what would the circumference be of a circle if the radius is 14

Answers

C≈87.96 because C=2πr=2·π·14≈87.96459

pls help I'm actually confused I've been trying to solve for over an hour.
( there both there own question but the 1st one you also need to solve the second)

Answers

Answer:

This is the famous "Ice cream cone" problem.   notice that if you turn the object 90° counter clock wise , it looks like an ice cream cone.   anyway

Step-by-step explanation:

the two triangles on the pointy end make a box , if you put them together, so it's a box of 4 x 11 or 44 [tex]in^{2}[/tex].

then the actual box part in the middle it's 3 x 8 or 24 [tex]in^{2}[/tex].

and finaly the ice cream :P  or the round part. well half round part.

it's half of a circle..(we don't really know if the arc is really a circle from the problem but I'm guessing that we are supposed to assume that it is )  and the area of a circle is [tex]\pi[/tex][tex]r^{2}[/tex]  

then [tex]\pi[/tex]*[tex]4^{2}[/tex] = 50.2655 which is the entire circle but we only have half.. so divide by 2   = 25.1327 [tex]in^{2}[/tex].

add the 3 parts

93.1327 [tex]in^{2}[/tex].

that's the total area of the  "ice cream cone"

now just multiply by 3.1 to find the cost of the flooring

$  288.71    

Hope that helps  :)

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