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2 years ago

Ye Li drew another quadrilateral it is a parallelogram and has four right angles can it be rhombus?

Mathematics

2 answers:

Anastasy [175]2 years ago

8 0

Answer:

A rhombus is both a rectangle and a rhombus. All the sides are equal and each angle measure 90 degrees. So yes it can be a rhombus.

Step-by-step explanation:

saul85 [17]2 years ago

7 0

Answer:

No.

Step-by-step explanation:

A squares angles are all 90 degree, a rhombus however, has perpendicular angles crossing each other that are equal to 90 degress.

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belka [17]

Answer:$9

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3 years ago

From an industrial area 70 companies were selected at random and 45 of them were panning for expansion next year. Find 95% confi

Lana71 [14]

Answer:

Confidence limit = [52.8%, 75.2%]

Step-by-step explanation:

$P=\frac{45}{70}= 0.64$

$(1-P)=1-0.64=0.36$

$n= 70$

$P$ ± $z$ $\sqrt{\frac{P(1-P)}{n} }$

where the value $z$ will be taken from the z-table for 95% confidence interval

1-0.95= 0.05/2= 0.025

0.95+0.025= 0.0975

From the z-table the value of $z$ corresponding to 0.0975 is 1.96

$0.64$ ± $1.96$ $\sqrt{\frac{0.64*0.36}{70} }$

$0.64$ ± $1.96$ $(0.057)$

$0.64$ ± $0.112$

$64%$ % ± $11.2$ %

so the confidence interval is

$64+11.2=75.2$ %

$64-11.2=52.8$ %

$[52.8, 75.2]$

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3 years ago

the angles of a quadrilateral measure 80°,100°,100°,and 80° in this order.what kind of quadrilateral has this shape? how do you

nlexa [21]

It has two pairs of same angles: that means that the opposite sides are parallel: this makes it a parallelogram.

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3 years ago

Sandra has a $20 itunes gift card and spends $3 each month. Which of the following functions models how much money Sandra has on

SCORPION-xisa [38]

Answer:

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Step-by-step explanation:

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3 years ago

Evaluate the expression when n=3. 3 squared+ 16

natita [175]

3^2 + 16
= (3 • 3) + 16
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= 25

~

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3 years ago