3 years ago

Use the cubes shown at the right to estimate the volume of the rectangular prism

Mathematics

1 answer:

MariettaO [177]3 years ago

7 0

Where are the cubes???????.

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Harriet has $25 in her savings account. She will add $5 each week and not take any money out of her account. Which expression re

svlad2 [7]

Answer:

$(25+5x) or $5(5+x)

Step-by-step explanation:

multiply x with $5 = $5x

add $25 to $5x = $(25+5x)

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3 years ago

Help me on isosceles and equilateral triangles problems. Find the value of x in the triangle shown below.

trapecia [35]

Answer:

x° = 61°

Step-by-step explanation:

Both of the "unknown" angles in the triangle are equal, since their opposite sides have equal lengths. (The triangle is isosceles.) The sum of angles in a triangle is 180°, so we have ...

58° + x° + x° = 180°

2x° = 122° . . . . subtract 58°, collect terms

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2 years ago

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lana66690 [7]

0.25 is the answer I think

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3 years ago

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A rectangular plot of ground is to be enclosed by a fence and then divided down the middle by another fence. If the fence down t

Shtirlitz [24]

6(2*144) + 6(2*12.5) + 3(144) = 2310

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3 years ago

In the following exercises, multiply the binomials. Use any method. 266. (3rs − 7)(3rs − 4)

Novay_Z [31]

Answer:

Hence the expression $(3rs-7)(3rs-4)=9r^2s^2-33rs+28$

Step-by-step explanation:

Explanation

The given expression is (3rs-7)(3rs-4).
We have to multiply the given expression.
Multiply the (3rs-7) by -4, multiply the (3rs-7) by 3rs then add like terms.

$\begin{matrix}{} & {} & {} & {} & 3rs & - & 7 \\ \times & {} & {} & {} & 3rs & - & 4 \\ \end{matrix}$

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$\begin{matrix}{} & {} & {} & - & 12rs & + & 28 \\ {} & {} & 9{{r}^2}{{s}^2} & - & 21rs & {} & {} \\ \end{matrix}$

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$\begin{matrix}{} & {} & 9{{r}^2}{{s}^2} & - & 33rs & + & 28 \\ \end{matrix}$

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2 years ago