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3 years ago

Some trapezoids are rectangles. true or false

Mathematics

2 answers:

Naya [18.7K]3 years ago

5 0

Answer:

The given statement is FALSE.

Step-by-step explanation:

Some trapezoids are rectangles - This is false.

This is false because a trapezoid is a quadrilateral that has exactly one pair of parallel sides whereas a quadrilateral that has two pairs of parallel sides is called a parallelogram.

And a parallelogram with right angles is called a rectangle.

So, a trapezoid cannot be a rectangle.

Oliga [24]3 years ago

4 0

Hey there! :)

The answer is false.

Trapezoids have ONLY 1 pair of parallel sides.

Rectangles have 2 pairs of parallel sides

Hope this helps :)

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4(1-2b)+7b-10

likoan [24]

Answer:

if you're simplifying, it should be = -1b - 6

Step-by-step explanation:

1. 4(1-2b) + 7b -10 solve the parenthesis

2. 4 - 8b + 7b - 10 combine like(same) terms

3. 4 - 1b - 10 same as 2.

4. -1b - 6

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3 years ago

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Step-by-step explanation:

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Rufina [12.5K]

Answer:

$4 \times {3}^{n + 3}$

Step-by-step explanation:

$\frac{ {18}^{n + 1} \times {3}^{1 - n}}{ {2}^{n - 1} }$

$\frac{ {3}^{2n + 2} \times {2}^{n + 1} \times {3}^{1 - n} }{ {2}^{n - 1} }$

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8 0

3 years ago

Read 2 more answers

4-9 ik this is probably easy but I’m stuck so ue

Lady bird [3.3K]

4-9= -5 that is the answer

4 0

3 years ago

Read 2 more answers

The ratio table shows the costs for different amounts of bird seed. Find the unit rate in dollars per pound.

Maru [420]

Answer:

2.3 dollars

Step-by-step explanation:

Given:

Ratio table that shows the costs for different amounts of bird seed

To find: the unit rate in dollars per pound

Solution:

Amount (pounds) 5 10 15 20

Cost (dollars) 11.5 23 34.50 46

Here,

$\frac{5}{11.5}=\frac{50}{115}=\frac{10}{23}\\\\\frac{10}{23}=\frac{10}{23}\\\\\frac{15}{34.50}=\frac{1500}{3450}=\frac{150}{345}=\frac{30}{69}=\frac{10}{23}\\\\\frac{20}{46}=\frac{10}{23}$

Therefore,

$\frac{5}{11.5}=\frac{10}{23}=\frac{15}{34.50}=\frac{20}{46}$

Cost of 10 pounds = 23 dollars

So, cost of 1 pound = $\frac{23}{10}=2.3$ dollars

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3 years ago