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3 years ago

Can someone help me with all this...

Mathematics

1 answer:

professor190 [17]3 years ago

4 0

Answer:

Option D -Parallelogram and rhombus is the correct answer.

Step-by-step explanation:

<u>Option A -Square.</u>

In square all sides are equal and all angles are equal and each angle is equal to 90°

<u>Option B - Parallelogram </u>

In Parallelogram opposites sides are equal and parallel. there is no right angles.

<u>Option C -Rectangle</u>

In rectangle opposites sides are equal and parallel. All angles are equal to 90°

<u>Option D -Parallelogram and rhombus</u>

In Parallelogram opposites sides are equal and parallel. there is no right angles.

In rhombus all sides are equal and parallel. there is no right angles.

Therefore correct answer is option D

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In the number 7,777. 777, what is the difference between the 7 in the hundreds place and the 7 in the column to its left?.

oksano4ka [1.4K]

The decimal point 7 in the integer 0.07 corresponds to the fraction 7/100. Every position in the decimal system corresponds to a power of 10.

<h3>What is unitary method?</h3>

Area is the entire amount of space occupied by a flat (2-D) surface or an object's shape.

On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a shape on paper is the area that it occupies.

Consider your square as being composed of smaller unit squares.

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Draw unit squares with 1-centimeter sides in order to calculate the area of the square figures shown below. The shape will therefore be measured.

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1 year ago

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2 years ago

Given the relationship x2 + 3y2 =12, with y > 0 and dx, dt = 2 units/min., find the value of dy, dt at the instant y = 1 unit

matrenka [14]

$\bf x^2+3y^2=12\implies \stackrel{chain~rule}{2x\cfrac{dx}{dt}}+3 \stackrel{chain~rule}{\left(2y\cfrac{dy}{dt}\right)}=0
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2x\cfrac{dx}{dt}+6y\cfrac{dy}{dt}=0
\implies 
6y\cfrac{dy}{dt}=-2x\cfrac{dx}{dt}\implies \cfrac{dy}{dt}=\cfrac{-2x\frac{dx}{dt}}{
6y\frac{dy}{dt}}
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\boxed{\cfrac{dy}{dt}=-\cfrac{x\frac{dx}{dt}}{3y}}\\\\
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$\bf \textit{now, when y = 1, what is \underline{x}?}\qquad x^2+3y^2=12\implies x^2+3(1)^2=12
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\begin{cases}
y=1\\
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3 years ago

From 1000 students half being boys and half being girls 100 names were pulled out of a hat to complete a survey for school what

Mama L [17]

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3 years ago

Read 2 more answers

Spotlight Dance increased the number of dancers on its competition team. Last

Nana76 [90]

Answer:

80%

Step-by-step explanation:

To find percentage increase, we use the following formula:

Percentage Increase = $\frac{New-Old}{Old}*100$

Here

New means the latest value (which is 18 dancers)

Old means the previous value (which is 10 dancers)

The Multiplication by 100 is to convert the decimal answer to percentage.

So, we have:

New = 18

Old = 10

Now we substitute and find:

$\frac{New-Old}{Old}*100\\\frac{18-10}{10}*100\\\frac{8}{10}*100\\80$

So, there was an increase of 80%

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3 years ago