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Gekata [30.6K]
3 years ago
8

WILL GIVE BRAINLIEST ANSWER AND WRITE SOMETHING NICE ON YOUR PROFILE Find the perimeter of a rectangular area with a length of 1

3 inches and
a width of 7 inches.
Calculation With Distribution
(Show all steps.)
Calculation Without Distribution
(Show all steps.)
Mathematics
2 answers:
iogann1982 [59]3 years ago
4 0
There really isn't any distributing done, as the perimeter is the total length of the shape, and since this is a rectangle it has two two equal sides, 7+7=14 and 13+13=26, 14+26=40 inches
masha68 [24]3 years ago
3 0
I think it would be 40. The calculation without distrubution would be to add 13 plus 13 and 7 plus 7 and add that together, to get 40
I am not sure if this is right, but me trying to give it a stab

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3. Each angle of a quadrilateral is 90 degrees if it is a rectangle.

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3 years ago
Triangle ABC has a right angle at C. Select all measurements which would mean it has a hypotenuse with a length of 10 units. a.
Delvig [45]

Option d: Angle A is 30 degrees, BC is 5 units

Option e: AC is 8 units, BC is 6 units

Explanation:

The triangle ABC has a right angle at C.

The length of the hypotenuse is 10 units.

The image of the triangle with this measurement is attached below:

Option a: Angle A is 20 degrees, BC is 2 units

\begin{aligned}\sin 20 &=\frac{2}{h y p} \\h y p &=\frac{2}{\sin 20} \\&=5.8476\end{aligned}

Since, hypotenuse is 10 units, Option a is not correct answer.

Option b: AC is 7 units, BC is 3 units

\begin{aligned}A B &=\sqrt{7^{2}+3^{2}} \\&=\sqrt{49+9} \\&=\sqrt{58}\end{aligned}

Since, hypotenuse is 10 units, Option b is not correct answer.

Option c: Angle B is 50 degrees, BC is 4 units

\begin{aligned}\cos 50 &=\frac{4}{h y p} \\h y p &=\frac{4}{\cos 50} \\&=6.222\end{aligned}

Since, hypotenuse is 10 units, Option c is not correct answer.

Option d: Angle A is 30 degrees, BC is 5 units

\begin{aligned}\sin 30 &=\frac{5}{h y p} \\h y p &=\frac{5}{\sin 30} \\&=10\end{aligned}

Since, hypotenuse is 10 units, Option d is the correct answer.

Option e: AC is 8 units, BC is 6 units

\begin{aligned}A B &=\sqrt{8^{2}+6^{2}} \\&=\sqrt{64+36} \\&=\sqrt{100} \\&=10\end{aligned}

Since, hypotenuse is 10 units, Option e is the correct answer.

Thus, Option d and e are the correct answers.

3 0
3 years ago
Identify the independent and dependent variables. The equation A=25w gives the area A (in square feet) of a rectangular dance fl
kozerog [31]

Answer:

The dependent variable is A

The independent variable is w

Step-by-step explanation:

Given

A = 25w

Required

Identify the variables

In A = 25w

The value of w is independent of the value of A.

In other words:

A derive its own value from w; by multiplying 25 and w.

Take for instance:

w = 3

The value of A would be:

A = 25 * 3

A = 75

Hence:

The dependent variable is A

The independent variable is w

7 0
3 years ago
A stick of butter in the shape of a rectangular prism has a length of 8 inches, a width of 3 inches, and a height of 3 inches. W
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Answer:

72in^3

Step-by-step explanation:

the information we know about the shape of the stick of butter:  

length = 8in

width = 3in

height=3in

The formula for the volume of a rectangular prism is:

volume=length*width*height

we find the volume by multiplying ll the measurements of the stick.

So we substitute the values to find the volume and we get the following:

volume=8in*3in*3in\\volume=72in^3

the volume of the stick of butter is 72in^3

5 0
3 years ago
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