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natka813 [3]
3 years ago
5

A Parallelogram must be a rectangle when it’s •A.)Diagnols are perpendicular •B.Diagnols are congruent •C. opposite sides are pa

rallel •D. opposite sides are congruent
Mathematics
2 answers:
Verizon [17]3 years ago
4 0

Answer:A


Step-by-step explanation: the diagonals face each other making them perpendicular making both sides parallel to each other, being straight.


Artyom0805 [142]3 years ago
4 0

Answer:

B.Diagnols are congruent

Step-by-step explanation:

A, C and D are not for rectangle only



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A student said thst the distance between (-5,7) and (3,7) is 2 units<br>is the student correct?
Usimov [2.4K]

No.


The distance is |-5 -3| = 8 units. (Y-coordinates are the same, so the distance is measured entirely in the x-direction. Distance is non-negative.)

3 0
3 years ago
3/4 2/3 5/6 5/7 least to greatest
Lana71 [14]

Answer:

2/3, 5/7, 3/4, 5/6.

Step-by-step explanation:

Convert each one to a decimal fraction:

3/4 = 0.75

2/3 = 0.666..

5/6 = 0.8333..

5/7 = 0.714

So least to greatest is

2/3, 5/7, 3/4, 5/6.

6 0
3 years ago
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Find v(2) show all steps <br> 2(v) = -10x
katen-ka-za [31]

Answer:

Step-by-step explanation:

Solving For V.

2v=−10x

You need to divided both sides by 2.

2v /2  =  −10x /2

v = −5x

Answer:

v = −5x

7 0
3 years ago
You have some turtles and some pelicans. Together there are 114 legs and a total of 34 animals. How many of each animal are ther
Ann [662]

Let t and p represent the numbers of turtles and pelicans, respectively.

... 2p + 4t = 114 . . . . . . . the number of legs is 114

... p + t = 34 . . . . . . . . . the number of animals is 34

Divide the first equation by 2 and subtract the second.

... (2p +4t)/2 - (p +t) = (114)/2 - 34

... t = 23 . . . . . . . . . . . . . . . . . . . . . . simplify

Then p = 34 - t = 11

There are 11 pelicans and 23 turtles.

_____

You can get to the same answer by considering the number of legs you would have if all the animals were pelicans. That would be 34*2 = 68. The is 46 fewer legs than there actually are. Each turtle that replaces one of those 34 pelicans adds 2 legs to the total, so to add 46 legs, we must replace 46/2 = 23 pelicans with turtles. That is, there are 23 turtles and 11 pelicans.

4 0
3 years ago
What is the cube root of 27a^l2?<br>-3a4<br>-3a<br> 3a<br> 3a*​
GuDViN [60]

Answer:

3a^4

Step-by-step explanation:

What is the cube root of  27a^{12}? This is the question.

We can write:

\sqrt[3]{27a^{12}}

We will use the below property to simplify:

\sqrt[n]{a*b}=\sqrt[n]{a}  \sqrt[n]{b}

So, we have:

\sqrt[3]{27a^{12}} =\sqrt[3]{27} \sqrt[3]{a^{12}}

We will now use below property to further simplify:

\sqrt[n]{x} =x^{\frac{1}{n}}

Thus, we have:

\sqrt[3]{27} \sqrt[3]{a^{12}} =3*(a^{12})^{\frac{1}{3}}

We know power to the power rule:  (a^z)^b=a^{zb}

Now, we have:

3*(a^{12})^{\frac{1}{3}}\\=3*a^{\frac{12}{3}}\\=3a^4

This is the correct answer:  3a^4

4 0
3 years ago
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