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3 years ago

Whats #2 because i dont understand

Mathematics

2 answers:

scoray [572]3 years ago

8 0

Answer: 5/9

explanation: the coefficient is in front of the variable x, which is 5/9

SpyIntel [72]3 years ago

7 0

Answer: A

Step-by-step explanation: So, before you can answer this question you need to understand what a variable is and a coefficient. Let me start with variable.

A variable is an unknown number in an equation or expression for example “x” in this problem

A coefficient is a number that comes right before a variable.

So,in this problem the 5/9 comes before the variable therefore that is your coefficient.

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Use properties to compare expression 5 x ( 6 x 3 )and ( 5 x 6) x 3

nadya68 [22]

5(6*3) = 5(18) = 90

(5*6)3 = (30)3 = 90

The answer is the same by the associative law.

6 0

3 years ago

natalie was out at a restaurant for dinner when the bill came. her dinner came to $29. after tipping in a tip, before tax, she p

Free_Kalibri [48]

Answer:

%18 tip

Step-by-step explanation:

The dinner cost was $29 before tip

after tip it was $32.22

34.22-29= $5.22 she tipped

$29 * %x = $5.22

After solving this equation, the x is %18

3 0

2 years ago

Solve these equation<br>|2x+1|=|x-2|

bagirrra123 [75]

Step-by-step explanation:

2x+1x= -2+1

3x= -1

3x÷3= -1÷3

x=|-3.3333..|=3.33333.. or

$\frac{1}{3}$

4 0

2 years ago

I need help with this, neither of my parents can help me and i want to understand.

olga2289 [7]

Answer:

See explanation

Step-by-step explanation:

1. To rewrite the expression

$(4^{\frac{2}{5}})^{\frac{1}{4}},$

use exponents property

$(a^m)^n=a^{m\cdot n}$

So,

$(4^{\frac{2}{5}})^{\frac{1}{4}}=4^{\frac{2}{5}\cdot \frac{1}{4}}=4^{\frac{2}{20}}=4^{\frac{1}{10}}$

2. Why $10^{\frac{1}{3}}=\sqrt[3]{10}?$

Raise both sides to 10 power:

$(10^{\frac{1}{3}})^3=10^{\frac{1}{3}\cdot 3}=10^1=10\\ \\(\sqrt[3]{10})^3=10$

So,

$(10^{\frac{1}{3}})^3=(\sqrt[3]{10} )^3$

3. Simplify $\dfrac{3^4}{9}$

Use the Quotient of Powers Property:

$\dfrac{a^m}{a^n}=a^{m-n}$

Then

$\dfrac{3^4}{9}=\dfrac{3^4}{3^2}=3^{4-2}=3^2$

4. Solve $4\sqrt{2}+5\sqrt{4}$

First, note that $\sqrt{4}=2,$ then

$4\sqrt{2}+5\sqrt{4}=4\sqrt{2}+5\cdot 2=4\sqrt{2}+10$

Number $4\sqrt{2}$ is irrational number, number 10 is rational number. The sum of irrational and rational numbers is irrational number.

5. The same as option 4.

3 0

2 years ago

5) you need to buy some pencils and an eraser. You can spend no more than $5. The eraser costs $1 and the pencils cost $0.25 eac

bazaltina [42]

You can buy 1 eraser and 16 pencils

5 0

3 years ago

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