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3 years ago

6

Which statement is always true for a square, but not always true for a rhombus?

2 answers:

Karolina [17]3 years ago

6 0

<span>- <u>Two angles are obtuse</u>.
No. There are no obtuse angles in a square.

- <u>All sides are equal</u>.
No. It's true of squares AND rhombuses.

- <u>Two or more angles are right angles. </u>
Yes. Always true for a square, sometimes true for a rhombus.

- <u>More than two sides are parallel.</u></span>
Confusing, so call it a 'no'.
In both squares and rhombuses, every one of the four sides
is parallel to ONE other side.

<u>Another important note:</u>
Look at the statement that's true always for a square and sometimes for a rhombus:
"Two or more angles are right angles".
WHEN does a rhombus have right angles in it ? Fasten your seat belt and hold on tight:
A square is a special kind of rhombus. It's a rhombus that has right angles in it.
So a rhombus has right angles in it <u>when it's a square</u>.

bezimeni [28]3 years ago

5 0

two or more angles are right angles. Because a square always has 4 right angles to be a square, however a rhombus has no right angles because that would be a lame rhombus if its a square. Um yeah.

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3 years ago

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The circumference of circle 1 is 16 pi units. The circumference of circle 2 is 6 pi units. Which of the following is true about

Yanka [14]

Answer:

Area of Circle 1=>64(pi) units^2

Area of Circle 2=>9(pi) units^2

Step-by-step explanation:

Circumference=2(pi)r

Circle 1: 2(pi)r=16(pi)

Divide by 2(pi) on both sides

r=8 units

Area=(pi)r^2

Area of circle 1=>(pi)*(8^2)

Area of Circle 1=>64(pi) units^2

Circle 2: 2(pi)r=6(pi)

Divide by 2(pi) on both sides

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3 years ago

What is the slope of the line whose equation is y - = 0? slope = slope = - slope = 0

sasho [114]

Answer:

the slope is 0

Step-by-step explanation:

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3 years ago

Please answer this question I need this urgent Help meeeee

iren [92.7K]

Answer:

$\frac{s}{2t}$

Step-by-step explanation:

When you have exponents above a like term and they are being multiplied together, you add them.

For example:

$a^{x} *a^{y} = a^{x + y}$

So let's group like terms in the numerator:

$4r^{3} r^{-5} s^{-2} s^{-1}t$ We can add terms like in the example.

$4 r^{-2} s^{-3} t$

Let's rearrange the denominator.

$8r^{-2} s^{-4} t^{2}$

Now we have:

$\frac{4r^{-2} s^{-3}t}{8 r^{-2} s^{-4} t^{2} }$ Cancel like terms

4/8 = 1/2

$r^{-2} /r^{-2}$ = 1 So it cancels

$s^{-3} / s^{-4} = s^{-1}$ = s Since s is raised to the -1 it goes on top and becomes s.

$t / t^{2} = 1/t$

Now we combine everything back together:

$\frac{s}{2t}$

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3 years ago

The proportion of items in a population that possess a specific attribute is known to be 0.45. a. If a simple random sample of s

yanalaym [24]

Answer: 0.05

Step-by-step explanation:

Sampling error is the error occurs by considering sample for study instead of entire population.

Given : The proportion of items in a population that possess a specific attribute is known to be 0.45.

Sample size : n= 100

Sample proportion of items in a population that possess a specific attribute : $\hat{p}=0.48$

Now, the formula to find the sampling error :

$\text{Sampling error} =\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$\text{Sampling error} =\sqrt{\dfrac{0.48(1-0.48)}{100}}$

$=\sqrt{\dfrac{0.48(0.52)}{100}}\\\\=\sqrt{0.002496}\approx0.05$

Hence, the sampling error =0.05

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3 years ago