All categories

3 years ago

Simplify each expression

Mathematics

2 answers:

Illusion [34]3 years ago

7 0

Answer:

Step-by-step explanation:

Given

$\sqrt[3]{\sqrt{729} }$

Evaluate from the ' inside- out ' , that is

$\sqrt{729}$ = 27 , then

$\sqrt[3]{27}$

= 3

Dafna1 [17]3 years ago

3 0

Answer:

Step-by-step explanation:

$\sqrt[3]{ \sqrt{729} }$

$= \sqrt[3]{ \sqrt{ {27}^{2} } }$

$= \sqrt[3]{27}$

$= \sqrt[3]{ {3}^{3} }$

$= 3$ ✅

You might be interested in

HELP NOW PLSSS enter your answer as mixed number and simpliflied, -4 1/2 x 2 1/2

nekit [7.7K]

Answer:

-11 1/4

Step-by-step explanation:

8 0

4 years ago

What is the final cost for an item that cost $30 and has a tax rate of 7%?<br> *

AVprozaik [17]

Answer:

32.10

Step-by-step explanation:

7% = 0.07

30 x 0.07=2.10

30+ 2.10=32.10

Price before Taxes: $ 30.00

+ Sales Tax (7%): $ 2.10

Total Price with Tax: $ 32.10

4 0

3 years ago

Eugene walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph.

Fynjy0 [20]

$\text{Answer: }1\frac{23}{40}\ miles\text{ far she live from school.}$

Explanation:

Since we have given that

Speed at which Eugene walked all the way to school = 3 mph

After realizing that she forgot her math book, she ran back

Speed at which Eugene walked back to her house = 7 mph

Let the distance between her house and her school be x

According to question,

$\frac{x}{3}+\frac{x}{7}=\frac{45}{60}\\\\\frac{7x+3x}{21}=\frac{3}{4}\\\\\frac{10x}{21}=\frac{3}{4}\\\\x=\frac{3\times 63}{4\times 10}=\frac{63}{40}=1\frac{23}{40}\ miles.$

Hence,

$1\frac{23}{40}\ miles\text{ far she live from school.}$

8 0

3 years ago

Translate to an equation and solve: The sum of two-fifths and f is one-half.<br> Provide<br> f=

SCORPION-xisa [38]

Answer:

9/10

1/2+2/5

Since these fractions have different denominators, we need to find the least common multiple of the denominators.The least common multiple of 2 and 5 is 10, so we need to multiply to make each of the denominators = 10

1/2 ∗ 5/5 = 5/10

5/2∗ 2/2= 4/10

Since these fractions have the same denominator, we can just add the numerators

5/10+ 4/10 = 9/10

3 0

3 years ago

Combine like terms. x^2y-3xy^2-6x^2y

balu736 [363]

The result after combining like terms is: $-5x^2y-3xy^2$

Step-by-step explanation:

Given expression is:

$x^2y-3xy^2-6x^2y$

The like terms are those terms with whom the variable or product of variables is same.

As in the given expression, first and third, both terms have x^2y so both terms are like terms

Combining like terms, means the indicated operation is performed on them

So,

Combining like terms:

$x^2y-6x^2y-3xy^2\\= -5x^2y-3xy^2$

Hence,

The result after combining like terms is: $-5x^2y-3xy^2$

Keywords: Expressions, polynomials

Learn more about polynomials at:

#LearnwithBrainly

3 0

3 years ago