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Dafna11 [192]
3 years ago
11

Find the missing variable for a parallelogram:

Mathematics
2 answers:
irakobra [83]3 years ago
4 0
Since the formula to find the area of a parallelogram is base times height (A=bh), and you have been given the area and base already, you can set up an equation. Let h=height in this formula. h x 3.4 = 25. Using this formula, to find the height, you would divide 25 by 3.4 and get approximately 7.35 inches. So, your height= 7.35in. Hope this helps!
Svetllana [295]3 years ago
3 0

Answer:

The missing variable for a parallelogram:

height (h) ≈ 7.35 in or

height(h) ≈ 18.67 cm

Explanation:

Area of parallelogram is base times the height.

i.,e A =b \times h where A is the area , b is the base and h is the height of the parallelogram respectively.

Given: Area (A) = 25 square in.  and breadth(b) = 3.4  in.

To find the height:

Apply parallelogram;

A = b \times h

Substitute the value of A and b in above formula;

25 = 3.4 \times h

Divide by 3.4 to both sides;

\frac{25}{3.4} = \frac{3.4}{3.4}h

Simplify:

7.35294118 in = h

or

h ≈ 7.35 in.

To find height in cm

Use 1 in = 2.54 cm

then, h =18.6764 ≈18.67 cm

Therefore, the height in inches is 7.35 in. (approx)

or the height in cm is; 18.67 cm (approx)


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Simplify. (3m^2n4)^3 <br>A)27m^5n^7 <br>B)9m^6n12 <br>C)27m^6n^12<br>D)9m^5n^7
butalik [34]
(3m²n⁴)³ = 27m^6n^12. choice C
6 0
3 years ago
Need geometry help ASAP please!
tatiyna

Answer:

1. 121 π  unit²

2. 143°

3. 151 unit²

Step-by-step explanation:

1.

Area of a circle is given by the formula  A = πr²

where

A is the area,

r is the radius of the circle

From the given diagram, we can see that the radius is 11, hence the area will be:

A=\pi r^2\\A=\pi (11)^2\\A=121\pi

The answer is  121\pi units^2

2.

The unshaded secctor and the shaded sector equals the circle. We know that circle is 360°. The unshaded sector has an angle of 217°. So the shaded part will be 360 - 217 = 143°

The measure of the central angle of the shaded sector is 143°

3.

Area of a sector is given by the formula  A=\frac{\theta}{360}*\pi r^2

Where

\theta is the central angle of the sector (in our case it is 143°)

r is the radius (which is 11)

Plugging in all the info into the formula we have:

A=\frac{\theta}{360}*\pi r^2\\A=\frac{143}{360}*\pi (11)^2\\A=150.99

<em>rounding to the nearest whole number, it is </em>151 units^2

3 0
3 years ago
Find the area of quadrilateral ABCD
andreev551 [17]

Answer:

<em>A ≈ 28.5</em>

Step-by-step explanation:

a, b, c

P = a + b + c

Semiperimeter s = \frac{a+b+c}{2}

A = \sqrt{s(s-a)(s-b)(s-c)}

~~~~~~~~~~~~~~~

P_{ABC} = 4.3 + 2.89 + 6.81 = 14

s = 14 ÷ 2 = 7

A_{ABC} = \sqrt{7(7-4.3)(7-2.89)(7-6.81)} = √14.75901 ≈ 3.84

P_{BCD} = 8.59 + 7.58 + 6.81 = 22.98

s = 22.98 ÷ 2 = 11.49

A_{BCD} = \sqrt{11.49(11.49-8.59)(11.49-7.58)(11.49-6.81)} = √609.7343148 ≈ 24.6928

A_{ABCD} = 3.84 + 24.6928 ≈ <em>28.5</em>

3 0
2 years ago
Please help me!!!!!!!
pantera1 [17]
The degree is 3.
This video explains it pretty well: https://virtualnerd.com/pre-algebra/polynomials-nonlinear-functions/polynomials/monomial-polynomial-degrees/polynomial-degree-definition
5 0
3 years ago
Ok what is 84% of 311?
kobusy [5.1K]
It would be: 311*84 / 100 = 311 * 0.84 = 261.24
So, your answer is 261.24
8 0
3 years ago
Read 2 more answers
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