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2 years ago

Which of the following expressions has a simplified value of 3a – 2?

Mathematics

2 answers:

julia-pushkina [17]2 years ago

7 0

The best answer would be B.

solong [7]2 years ago

3 0

The answer would be A i hope this helped

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Terry has a box of 144 colored pencils. If he and 4 of his friends share the pencils equally, how many pencils will be left over

monitta

Answer:

number of people=4+1

144/5=28.5

28×5=140

Step-by-step explanation:

how many pencils will be left over?=144-140

6 0

2 years ago

What is the width of a rug that is 36 1/4 square feet and 8 3/4 wide

blondinia [14]

Answer: $4\frac{1}{7} ft$

<u>Step-by-step explanation:</u>

Area (A): $36\frac{1}{4} = \frac{4(36)+1}{4} = \frac{144+1}{4} = \frac{145}{4}$

Length (L): $8\frac{3}{4} = \frac{4(8)+3}{4} = \frac{32+3}{4} = \frac{35}{4}$

width (w): W

A = L x W

$\frac{145}{4}$ = $\frac{35}{4}$ x W

$(\frac{4}{35})$ $\frac{145}{4}$ = $(\frac{4}{35})$ $\frac{35}{4}$ x W

$\frac{4(145)}{35(4)} = \frac{145}{35} = \frac{5(29)}{5(7)} = \frac{29}{7} = W$

$\frac{29}{7} = \frac{7(4) + 1}{7} = 4\frac{1}{7}$

8 0

3 years ago

What is the angle of rotation of this regular octagon? what is the measure of an interior angle?

MrRissso [65]

Second question:
sum of all the interior angle 180*(8-2)=1080 degree
sum of one interior angle 1080/8=135 degree

6 0

2 years ago

F(x) = |6x| - 2 ; reflection in y-axis

dedylja [7]

Hope this helps you. Thank you....

6 0

2 years ago

Combine the following fractions by addition or subtraction as directed.

Marina86 [1]

Answer: $\frac{6}{y^2-xy}-\frac{6}{x^2-xy}=\frac{6(x+y)}{xy(y-x)}$

Explanation:

Combining the fractions, we have:

$\begin{gathered} \frac{6(x^2-xy)-6(y^2-xy)}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6xy-6y^2+6xy}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6y^2}{x(x-y).y(y-x)} \\ \\ =\frac{6(x-y)(x+y)}{-xy(x-y)^2} \\ \\ =\frac{-6(x+y)}{xy(x-y)} \\ \\ =\frac{6(x+y)}{xy(y-x)} \end{gathered}$

8 0

1 year ago