you can combine radical expression by adding or subtracting if they have the same index and radicand. True or false

Answers

Answer 1

Answer:

True

Step-by-step explanation:

Answer 2

Answer:

True

Step-by-step explanation:

Two of the radicals have the same index and radicand, so they can be combined. Rewrite the expression so that like radicals are next to each other. Combine. Although the indices of and are the same, the radicands are not—so they cannot be combined.


Related Questions

What is the slope of (12,-18) and (11,12)? Please I’m very confused.

Answers

Answer:

-30

Step-by-step explanation:

[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]

where (x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate.

Slope

[tex] = \frac{12 - ( - 18)}{11 - 12} [/tex]

[tex] = \frac{12 + 18}{ - 1} [/tex]

= -30

Suri makes $15 per hour and gets a weekly bonus of $25. Juan makes $14 per hour and gets a weekly bonus of $50. Is it possible for Suri and Juan to make the same amount of wages, y, by working the same number of hours, x, in one week?
Yes, because the slopes of the equations are different so the system of equations will have one solution.
No, because the slopes of the equations are different so the system of equations will have no solutions.
Yes, because the slopes of the equations are the same so the system of equations will have infinitely many solutions.
No, because the slopes of the equations are the same so the system of equations will have no solutions.

Answers

Answer:

Yes, because the slopes of the equations are different so the system of equations will have one solution.

Step-by-step explanation:

200 reduced by twice my age is 88

Answers

The answer to your question is 56
so you’re 56?

200 - x * 2 = 88

x = 56

Please answer correctly! I will mark you Brainliest!

Answers

Answer:

27

Step-by-step explanation:

V=a^3=3^3=27

help please i been stuck for 2 hours........... the triangle above is a right-angled isosceles triangle. what would the measurement of x have to be, given that the hypotenuse is 8cm and legs a and b have the same length? please explain your answer

Answers

Answer:

4√2 or 5.66

Step-by-step explanation:

x² + x² = 8²

=> 2x² = 64

=> x² = 32

=> x = √32 = 4√2 or 5.66

Which choice represents the simplified exponential expression? (11^-2)^7
PLEASE HELP!!!

Answers

Step-by-step explanation:

[tex]( {11}^{ - 2} ) ^{7} = {11}^{ - 2 \times 7} \\ = {11}^{ - 14} [/tex]

Can someone answer these? It like due in 15 mins

Answers

Answer:

1 = Supplementary

2 = Vertical

3 = Congruent

4 = Supplementary

5 = Complementary

6 = Adjacent

7 = never

8 = always

9 = sometimes

10 = 79°

11 = 28°

12 = 133°

Step-by-step explanation:

Hurry please

here is a triangle prism

why is the surface area of the prism, in square centimeters?

Answers

Answer:

Step-by-step explanation:

(6 * 4) + 2(10 * 5) + (10 * 6)

Multiply 6 by 4 to get 24.

24 + 2(10 * 5) + (10 * 6)

Multiply 10 by 5 to get 50, then multiply by 2 to get 100.

24 + 2(50) + (10 * 6)

24 + 100 + (10 * 6)

Multiply 10 by 6 to get 60.

24 + 100 + 60

Add 24 to 100 to get 124.

124 + 60

Add 124 to 60 to get 184.

184 cm²

The surface area of the prism is 184 cm².

Anthony starts with $400 in his bank account. Over the course of a week, he withdraws $50, deposits $70, and withdraws $20. How much money is in his account?

show your work, please

Answers

Answer:

The answer is 400

Step-by-step explanation:

Withdraw means to take out, deposit means to put in. So you adding and subtracting all the numbers. 400-50+70-20= 400

can someone pls help me

Answers

Answer:

x=−8 and y=−4

Step-by-step explanation:

8x−17y=4;−8x+15y=4

add eqn1 and 2

to eliminate x

you will get y=-4

put it zin eqn 1

x=-8

find slope represented in the table

Answers

Answer:-4

Step-by-step explanation:

The answer is -4 for the problem

Sarah will roll a fair number cube. The number cube is labeled 1 to 6. What is the probability that Sarah will roll a number greater than 2? HELP!

5/6

1/6

2/3

1/2

Answers

Answer:

       5/6 or 4/6

Step-by-step explanation:

6-2=

4/6 -with out two

5/6 -including two

A group of four friends went out for dinner. Their bill came to $50.95. They also need to pay 8% sales tax, and want to tip their server 18% on the cost of the meal (including tax). How much will EACH friend have to pay? Round your answer to the nearest cent.

Answers

Answer:

Enter cost and tip percent to get a tip amount and total dinner amount. Also split the total amount; divide among any number of people. ... Money, Pay, Taxes. > Tip ... Enter your meal or dinner cost along with the tip percentage. ... To calculate a gratuity or tip on any calculator it is a simple multiplication. ... All rights reserved

Step-by-step explanation:

After eating at your favorite restaurant, you know that the bill before tax is $52.60 and that the sales tax rate is 8%. You decide to leave a 20% tip for the waiter based on the pre-tax amount. How much ... To figure out the tip, you need to find 20% of $52.60. 0.2 \times 52.6

The amount that each person should pay is  $22.06   .

What is percent?

Percentages can be stated as essentially fractions where the denominator is 100. To show that a number is a percent, we use the percent symbol (%) beside the number. We can take as example, if you got 75 questions right out of 100 on a test (75/100), you would have scored 75%.

here, we have,

in the question ,

it is given that

total number of persons = 3 person + 1 = 4 persons

cost of the meal = $72.50

sales tax percent = 6.75%

tip percent = 15%

So , the amount of sales tax = 6.75% of cost = 0.0675 * 72.50 = $4.89

and , the amount of tip is = 15% of cost

= 0.15 * 72.50

= 10.87

So , the total amount payable is = cost + sales tax + tip

= 72.50 + 4.89 + 10.87

= 88.26

since the total number of persons is 4 ,

the amount per person is = 88.26/4 = 22.06

Therefore , The amount that each person should pay is  $22.06   .

Learn more about Percent here

brainly.com/question/19131273

#SPJ2

Tell me which lines to draw to which ( whoever answers correctly gets brainliset )

Answers

Answer:

13. 24ft = 8yd

14. 120in = 10 ft

15. 2 yd = 72 in

16. 5 yd = 180 in

17. 20yd = 60 ft

Step-by-step explanation:

24ft*12 in = 288 inches/36 inches(1yd) = 8yd

120in/12in = 10ft

2yd*36in = 72 in

5yd*36in = 180 in

20yd*36in = 720/12in = 60ft

1ft = 12inches

1 yd = 36 inches

A fair six sided die is thrown .Find the probability of getting a 4​

Answers

Answer:

1/6

Step-by-step explanation:

total no of out comes= 6

favourable out comes= 1

:. prob( getting 4)=1/6

Carl's grandfather is exactly 5 times older than Carl. Which three statements must be true?​ 1 SEE ANSWER

Answers

Answer:

x = 5y

Step-by-step explanation:

Let the age of Carl's grandfather be x

Let the age of his son be y

If Carl's grandfather is exactly 5 times older than Carl, this can be expressed as;

x = 5y

Hence the required expression is x = 5y

OLEASE HELLPP I will mark good

Answers

960 cm.






Explanation

The height of a cylinder is twice the radius of its base

Answers

Answer:

2πr³

Step-by-step explanation:

The volume (V) of a cylinder is calculated as

V = πr²h ← r is the radius and h the height

Here h = 2r, hence

V = πr² × 2r = 2πr³

Answer:

yes

Step-by-step explanation:

4) Graph f(x) 2(3)*. Compare the graph to the
graph of the parent function. Describe the domain
and range of f.

Answers

Answer  it is 65

Step-by-step explanation:

7.17 x 10' and 8.17 x 1067

Answers

Answer:

1. =71.7

2. =8717.39

Step-by-step explanation: Hope this help :D

Maria had 10.5 pounds of flour. She used all of the flour to fill bags that hold 0.75 pound each.

How many bags was she able to fill? (:

Answers

There are 16 oz per pound, so that 4 oz is equal to 4/16 or 1/4 pound.

Since each box contains 10 packages and each package weighs 3 lbs 4 oz which is equivalent to 3-1/4 lbs , then the weight of each box will be

(10 (3-1/4) = 32-1/2 pounds per box

The weight of 4 boxes will then be (4 boxes) (32-1/2 pounds per box) = 130 pounds.
10.5/0.75= 14 bags

She will be able to fit 14 bags

Find the area of the given shape?

Answers

Answer:

28

Step-by-step explanation:

Area for a triangle is

1/2(bxh) B-Base H-Height

So

1/2(7x8)

1/2(56)

=28

8.1g of sugar is needed for every cake made. How much sugar is needed for 6 cakes?

Answers

Answer:

48.6

Step-by-step explanation:

If you use 8.1g of sugar for 1 cake then 6 cakes will be 48.6g of sugar

Just do 8.1*6 and you will get 48.6

Someone is the age of 550 more than (97x90)+(2+0)+(1x4)+(9+14). How old is he?

Answers

Answer:

9,309

Step-by-step explanation:

550 + (8,730) + 2 + 4 + (23)

= 550 + 8,730 + 2 + 4 + 23

= 9,309

What is the unit rate? 52.5/2.5

Answers

Answer:

21

Step-by-step explanation:

Use the number line to complete the statements.

A number line going from negative 10 to positive 10 in increments of 2.

The opposite of 4 is
.
The opposite of –8 is
.

Answers

Answer:

-4 and 8

Step-by-step explanation:

Answer:

The opposite of 4 is

✔ –4

The opposite of –8 is

✔ 8

Did it on Edge

Se quiere realizar la adición y multiplicación de los números enteros 43 y -32. En relación con los signos de las operaciones se puede decir que

Answers

Answer:

El caso de la adición es trivial.

La adición entre los números A y B es:

A + B

Entonces la adición entre los números 43 y -32 es:

43 + (-32)  

No hace falta realizar la suma para darnos cuenta de que el resultado tendra signo positivo, esto se da porque el módulo del número positivo es mayor que el del número negativo.

Así tenemos:

43 + (-32) = 43 - 32  = 11

Para el caso de la multiplicación podemos recordar:

(+)*(+) = (+)

(-)*(+) = (-)

(+)*(-) = (-)

(-)*(-) = (+)

Entonces el producto entre un número positivo y uno negativo (como es nuestro caso con 43 y -32) siempre tendrá un signo negativo.

Entonces podemos concluir que el signo de la multiplicación entre esos dos números va a ser negativo.

También podemos resolver la multiplicación de otra forma para ver esto:

43*(-32)

43*( (-1)*32)

43*(-1)*(32)

(-1)*(43*32)

Que es claramente un número negativo.

1. If you're trying to gain access to a credit card before you turn 21, which of
the suggestions rely on the support of your parent or guardian?

Answers

I think you should rely on your parent

Last week, she bought two pounds and paid $7.96, and this week she bought only one-half pound and paid $1.99. What is the unit rate for the pistachio nuts? How do you know?

Answers

Answer:

$3.98

the unit rate can be determined by dividing the total costs of the pistachio by the total pounds bought

Step-by-step explanation:

unit rate = total cost / total pounds bought

7.96 / 2 = $3.98

1.99 / 0.5 = $3.98

Samantha has 52 jelly beans. She decides that she will eat 4 jelly beans per minute, and she wants to create an expression that represents how many jelly beans she has left after x minutes. Which of the following expressions correctly models this situation?

Select one:

A. 4x + 52

B. x + 52

C. -x + 52

D. -4x + 52

~and also if whoever answers doesn't mind, please put an actual explanation since I just wanna be able to fully understand the concept! It would be greatly appreciated! ~

Answers

Answer:

-4x+52

Step-by-step explanation:

So we know that Samantha has 52 jelly beans and that she'll eat 4 jelly beans per minute in X minutes.

It'd be 4*x=4x

Usually, it'd be 52-4x

But you can create an equivalent

Lets say x=5

So she'd eat 20 jelly beans

52-20=32

BUT

-20+52=32

So, the answer would be D

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