MATHEMATICS MIDDLE SCHOOL

All rectangles are parallelograms. Are all parallelograms rectangles? Explain

Answers

Answer 1

Answer:

The statement that all parallelograms are rectangles is false

How to determine the true statement?

The statement is given as:

All rectangles are parallelograms

The properties of rectangles are

Opposite sides are equal
Opposite sides are parallel
Adjacent sides are perpendicular

The properties of parallelogram are

Opposite sides are equal
Opposite sides are parallel

Using the above properties, we can conclude that the statement that all parallelograms are rectangles is false

Read more about parallelograms and rectangles at

brainly.com/question/15479809

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A relation is given. {(3, 4), (0, 1), (4, -6), (2, 17)}

Write the domain and range.

A) Domain: {3, 0, 4}; Range: {4, 1, -6}

B) Domain: {3, 0, 4, 2}; Range: {4, 1, -6, 17}

C) Domain: {3, 0, 4, 2}; Range: {4, 1, 17}

D) Domain: {4, 1, -6, 17}; Range: {3, 0, 4, 2}

Answers

The domain is the x coordinates, while the range is the y coordinates.

B) Domain: {3, 0, 4, 2}; Range: {4, 1, -6, 17}

This choice is correct because the domain is shown as the x values, and range is the y value,

Conrad has a collection of three types of coins: nickels,dimes, and quarters. There are five more nickels than quarters but fours times as many dimes as quarters. If the entire collection is worth $5.85, how many nickels,dimes, and quarters are there?

Answers

2 nickles 3 dimes and 4 quarters

I need help on this problem please and thank you

Answers

I think it's -17 and 13 because that's both times the x-intercept is zero. I hope this helps. ;-)

Does the equation y= -1/x represent a direct or inverse variation?

Answers

The equation y = -1/x represent a inverse variation

Solution:

Given, equation is $y = (-1)/(x)$

We have to find the relation between x and y

Now, for finding the relation we have to take two sets of values of x and y and substitute them in given equation.

$\begin{array}{l}{\text { Now, take } y=1 \rightarrow 1=-(1)/(x) \rightarrow x=-1} \n\n {\text { Now, take } y=-1 \rightarrow-1=-(1)/(x) \rightarrow x=1}\end{array}$

If we observe, when y value is decreased from 1 to – 1, the value of x is increased from -1 to 1

Hence, the x and y varies inversely

You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability that you select a vowel. Write your answer as a fraction in simplest form my answer is B check my work plz

Answers

Easy, the answer is 5/12

Here, Favorable Outcomes(Vowels): E, I,O, I,A = 5
Total Outcomes: S, E, M, I, T, R, O, P, I, C, A, L = 12

So, Probability = Favorable Outcomes / Total Outcomes
P = 5 / 12

In short, Your Answer would be 5/12

Hope this helps!

In your classroom, a dry erase board is 8 feet long and 4 feet wide. You teacher makes individual dry erase boards for you to use at your desk that are 11.5 inches long and 9.5 inches wide. Are the boards similar?

Answers

Both boards are not similar, since the board made by the teacher does not have a ratio of 2:1.

Ratios

Given that in your classroom, a dry erase board is 8 feet long and 4 feet wide, and your teacher makes individual dry erase boards for you to use at your desk that are 11.5 inches long and 9.5 inches wide, to determine if the boards are Similarly, the following calculation must be performed:

8:4 = 2:1
11.5:X = 2.1
11.5 / 2 = 5.75

Therefore, both boards are not similar, since the board made by the teacher does not have a ratio of 2:1.

Learn more about ratios in brainly.com/question/1504221

Answer:

Step-by-step explanation:

The ratio of length to width in the first is 2 : 1 while the ratio of the second is 23 : 19

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