3 years ago

Which statement best describes a physical change?

2 answers:

7 0

The third one is the answer

changes can occur to chemical properties of a substance but the chemical composition of the substance remains the same

SOVA2 [1]3 years ago

3 0

I think either c or d

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How many tables will Mrs. Comfort need to rent if there were 32 guests?

RSB [31]

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Depends on how many people each table holds

Step-by-step explanation:

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2 years ago

What addition doubles fact can help to find 4+3?

lubasha [3.4K]

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3 years ago

Express the product of (1/5x + 1) and (1/6x + 5/4) as a trinomial in simplest form

Greeley [361]

$(\frac{1}{5}x+1)(\frac{1}{6}x+\frac{5}{4})$

Use distributive property to remove the parentheses:

$(a+b)(c+d)=ac+ad+bc+bd$ $\begin{gathered} =\frac{1}{5}x*\frac{1}{6}x+\frac{1}{5}x*\frac{5}{4}+1*\frac{1}{6}x+1*\frac{5}{4} \\ \\ Multiplication\text{ }of\text{ }fractions: \\ \frac{a}{b}*\frac{c}{d}=\frac{a*c}{b*d} \\ \\ =\frac{1}{30}x^2+\frac{5}{20}x+\frac{1}{6}x+\frac{5}{4} \\ \\ =\frac{1}{30}x^2+\frac{1}{4}x+\frac{1}{6}x+\frac{5}{4} \\ \\ Addition\text{ }of\text{ }fractions: \\ \frac{a}{b}+\frac{c}{d}=\frac{ad+bc}{bd} \\ \\ =\frac{1}{30}x^2+(\frac{6x+4x}{24})+\frac{5}{4} \\ \\ =\frac{1}{30}x^2+\frac{10}{24}x+\frac{5}{4} \\ \\ Simplify: \\ =\frac{1}{30}x^2+\frac{5}{12}x+\frac{5}{4} \end{gathered}$ Then, the product in the simplest form is: $\frac{1}{30}x^2+\frac{5}{12}x+\frac{5}{4}$

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1 year ago

Evaluate g(x) = 4 – 3x when x<br> = -3, 0, and 5.

nasty-shy [4]

G(x) when x = -3 : 4 - 3(-3) = 13
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3. -11

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3 years ago

The data below represent the number of desks in each math teacher's classroom

Yuki888 [10]

Answer:D

Step-by-step explanation:

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3 years ago