How do I solve radical equations?​

Answers

Answer 1
radical equation is solved by simply squaring or cubing both sides of the equation. For example:
(2x + 9) =5
(2x + 9)^2 =5^2

Then, continue to isolate the variable:
2x+9=25
2x + 9 - 9 = 25 -9
2x/2 = 16/12
X=8

Related Questions

Please help with questions will give brainlsest

Answers

Answer: 1. x=3 and y=7

2. x=10 and y=35

3. x=-2/3 y=-2/3 (fraction)

Step-by-step explanation:

TIMED URGENT! REALLY APPRECIATE SOME HELP! BRAINLIEST!
Calculate the slope of the line passing through the points (-1, -5) and (-9, -1)
a) undefined
b) 0
c) -0.5
d) -2

Answers

Answer: C!!!!!!!!!
Explanation: y2-y1/x2-x1!

Answer:

C

Step-by-step explanation:

(y2-y1)/(x2-x1) = slope

y2-y1 = (-1)-(-5) = 4

x2-x1 = (-9)-(-1) = -8

slope = 4/(-8) = -0.5

What is the volume of the following rectangular prism

Answers

Answer:

8 1/8 or 8.125

Step-by-step explanation:

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

since we only have length and width we just multiply that

16 1/4 x 1/2 = 8 1/8 or 8.125

so the volume is 8 1/8 0r 8.125

I need to know what the answer is :)

Answers

3 ahhhhhhhhhhhhhhhhhhhhhhhhh

HELP ME PLEASEEEE I NEED IT ASAP

Answers

Answer:

X = 6

Step-by-step explanation:

Am tired 2 show the work

Answer:

=-6

Step-by-step explanation:

Move all terms containing x to the left side of the equation.

x−4=−10

Move all terms not containing x to the right side of the equation.

Add 4 to both sides of the equation.

x=−10+4

Add −10 and 4

X=-6

9.8-7.5 how do I solve for this

Answers

Answer:

Its simple the anwser is 2.3

Step-by-step explanation:

               9.8

              -7.5=

               2.3

PQ=RQ
b
140°
P
R
b = [? ]°
pls help me besties

Answers

Answer:

b=40 I just took this quiz

Answer:b=40 a=100

Step-by-step explanato a line is 180 degrees, the outside of the triangle is 140 degrees so the inside must be 40 to make 180 and a is also 40 because the triangles sides are the same

 

to find a we now know that both angles on the bottom 40+40 will add up to 80 and to make a complete triangle we need 180 so the measure of a is 100 degrees

a=100

b=40

Solve using elimination.
-5x - 3y = 20
3x - y = 14

Answers

Point Form:

( 11/7 , -65/7 )

Equation Form:

x = 11/7, y = -65/7

what is 4.0 x 10 by the 2nd power

Answers

The answer is 400
Have a wonderful day

Marcy wants to paint the sides of the wooden storage chest shown below gray except the white lid. What is the surface area?

Answers

Answer:

Surface area = 2,160 in²

Step-by-step explanation:

Given:

Length of box = 15 in

Width of box = 30 in

Height of box = 24 in

Find:

Surface area

Computation:

Surface area = 2h[l+b]

Surface area = 2(24)[30 + 15]

Surface area = 48 x 45

Surface area = 2,160 in²

Charles buys 20 packs of pens.
There are 15 pens in each pack.
Each pack costs £2.50.
Charles sells each pen for 65p but he only manages to sell į of the pens.
How much profit did he make?

Answers

Answer:

their will be at least $159

what is 4.17 x 10 -5 =

Answers

Answer: 36.7

Step-by-step explanation:

4.17 x 10 -5 =

41.7-5

=36.7

Andy got 28 out of 50 problems correct. What percentage did Andy get correct?

Answers

Answer:  the answer is 56%

so you do 28/50x2 so then the 50 is 100 and the top number which is 56 so 56% is the answer

Explain what the point (20,160) represents in the context of the situation? Check all boxes that apply A. 160 shirts cost $20
B. 20 shirts cost $160
C. 20,160 shirts cost money
D. The total cost of shirts is 20,160

Answers

Answer:

option B is correct option.

Step-by-step explanation:

Explain what the point (20,160) represents in the context of the situation? Check all boxes that apply

Looking at the graph we come to know that 20 shirts cost $160 because x -axis represent number of shirts and y-axis represent Total Cost

So, the point(20,160) means x = 20 and y=160

We have 20 shirts and the cost is $160

So, option B is correct option.

JUST ONE MORE PLEASE PLEASE! IF YOU DUNNO DONT ANWSER I NEED THIS CORRECT OR IM OGNNA BE GETTING A F

Answers

Answer:

8

Step-by-step explanation:

-3 + 11 = 8

blank = 8

[tex]\huge\purple {\mid {\fbox {\tt {Solution!}}\mid}}[/tex]

[tex] \longmapsto- 3 + 11 \\ \longmapsto8[/tex]

I need help multiplying fraction s what is 1/2 * 1/2 and can you add a explanation​

Answers

Answer:

2 1/2

Step-by-step explanation:

since it two halves multiplied, it'd be 2 1/2. you can also mulitpy decimals to get ur answer

breainliest pls

Solve each equation by factoring.
1) 7x² + 63x = -126

Answers

7x^2 + 63x + 126 = 0
7(x^2 + 9x + 18) = 0
7(x + 3)(x + 6) = 0
X = -3 X= -6

Alejandro makes donations in the amount of $100 every December to
5 of his favorite charities. He pays for the donations by check. What is the
change in his checking account balance after making these donations?

Answers

Answer:

the balance will decreases by 500

-500 represents his account balance  

Step-by-step explanation:

B

C

(-5, -3); slope = -3/5

turn into y intercept equation please

Answers

first use the point slop formula
y-y1=m(x-x1)

with your points it would give you the equation
y+3=-3/5(x+5)

then solve it so that it becomes in the form y=mx+b

in your case your answer would be y=-3/5x + 0

hope this helps!

The path of a diver diving off a 10-foot platform can be represented by the function h(x) = - 0.5(x^2 - 4x - 21) where h is the diver's height above water and x is the horizontal distance from the platform (in feet).

What does the positive zero represent?

Answers

Answer:

x = -3 and 7

Step-by-step explanation:

Given the path of a diver expressed as;

h(x) = - 0.5(x^2 - 4x - 21)

The positive zero occur at when h(x) = 0

Substitue

0  = - 0.5(x^2 - 4x - 21)

-0.5x^2 + 2x + 10.5 = 0

Multiply through by -10

5x^2 - 20x - 105 = 0

x^2 - 4x - 21 = 0

x^2 - 7x+3x - 21 = 0

x(x-7)+3(x-7) = 0

(x+3)(x-7) = 0

x = -3 and 7

Hence the positive zero displacement occurs at x = -3 and 7

Find the area and perimeter of the shaded region. Stuck on this one can someone help me

Answers

Answer:

perimeter-

perimeter outer rectangle = 2 (l+b)

=2×8+9

= 2×17

2×17 =34 cm sq.

perimeter of inner rectangle = 2 (l+b)

= 2×5+3

=2× 8

= 16 cm sq.

perimeter of shaded portion= 34 - 16

= 18 cm sq.

area-

area of inner rectangle =l×b

l×b = 3×5

3×5=15

15 cm sq.

area of outer rectangle =l×b

l×b= 9×8

9×8= 72

72 cm sq.

area of shaded portion = 72 -15 =57 cm sq.

hey there! In second method i have done first area of inner rectangle but you have to do first area of outer rectangle...

hope it helps you....

Answer:

Let A1 = be the large rectangle and A2 the small rectangle

=> Area A1: S1 = a1.b1 => S1 = 8 x 9 = 72m2

=> Area A2: S2 = a2.b2 => S2 = 3 x 5 = 15 m2

=> Area of the remaining surrounding square: S1-S2 = 72-15 = 67m2

=> Perimeter A1: P1 = 2 (a1 + b1) = 2 (9 + 8) = 34m

=> Perimeter A2: P2 = 2 (a2 + b2) = 2 (3 + 5) = 16m

=> Perimeter of the surrounding square: P1-P2 = 34-16 = 18m

Step-by-step explanation:

5 - 9.5 = 5 + __

^^ Enter a number in the space provided to make the equation true.

Answers

-9.5 the answer would be that

The complete equation,

5 - 9.5 = 5 - 9.5.

What is an equation?

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

Given:

An equation,

5 - 9.5 = 5 + __.

Let the missing number is x.

Simplifying,

-4.5 = 5 + x

x = -9.5

Therefore, the missing term is x = -9.5.

To learn more about the equation;

https://brainly.com/question/12788590

#SPJ2

what is the answer for y=__x+__

Answers

Answer:

y=1/-4x+4

Step-by-step explanation:

hey

Step-by-step explanation:

Slope (x) is rise/run. From one intersecting point to the next, we find it is moving 4 y down and 1 x over. Using this we conclude the slope is -4/1x (or -4x)

The second number in the system is b, or y-intercept. The line intercepts at 4y. If we combine these together, the outcome is y = -4x + 4

Find the area of the shape below. All measurements are in miles.
6
8
1
15.23
1
1

Answers

731.04!! You multiply all together!! Mark me brainliest ?


The graph shows your distance from home on a day trip to an apple farm which is 125
miles away. Which statement is true about your day trip?
Distand
(miles

Answers

Answer:

It took you 3 hours to reach the apple farm.

Step-by-step explanation:

Tracy began her career making an annual salary of $26,262, and after each year, she has received a 4% raise. if she has been working for 12 years, which of these expressions can be used to calculate how many dollars she made in total during this time?​

Answers

Answer:

D.

Step-by-step explanation:

You can check with this equation 26262(1.04)^12. gets you the same answer as D.

37x -58 = 132 + 97x
Please help solve for x

Answers

Answer:

x = -19/6

Step-by-step explanation:

37x - 58 = 132 + 97x

-60x = 190

x = -19/6

Answer:  -3.167 or -19/6

Step-by-step explanation:

x = -19/6 = -3.167

What is the approximate diameter of a sphere with a volume of 268 cm3?

A. 4 cm

B. 8 cm

C. 12 cm

D. 16 cm​

Answers

Answer:

B. 8cm

Step-by-step explanation:

radius = 4cm

volume = 4/3 π r³

volume = 4/3 *3.14 *4³ (π = 3.14)

volume = 268cm³

hope it is help you

Just 2 more! Ik we got this! Just please, it’s due at 11pm!

Answers

Answer:

-4

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

A jar is filled with pennies, nickels, and dimes. The probability of picking a penny is 1/4, and the probability of picking a dime is 1/3. What is the probability of picking a nickel? Write your answer as a decimal rounded to the hundredths place.

Answers

Answer:

What Are The Options?

Step-by-step explanation:

Answer:

0.42

Step-by-step explanation:

given:

P (penny) = 1/4

P (dime) = 1/3

since the only other possibility is to pick a nickel, hence

P (nickel)

= 1 - 1/4  - 1/3

= 5/12

= 0.4166667

= 0.42 (nearest hundredth)

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