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Anestetic [448]
2 years ago
6

Arianna has a tent for her dollhouse. What is the surface area of the tent? 159 mm2 192 mm2 123 mm2 168 mm2

Mathematics
2 answers:
Black_prince [1.1K]2 years ago
7 0

Answer:

The surface area is 168\ mm^{2}

Step-by-step explanation:

we know that

The tent is a triangular prism

see the attached figure to better understand the problem

The surface area of the triangular prism is equal to

SA=2B+PL

where

B is the area of the triangular face

P is the perimeter of the triangular face

L is the length of the prism

<em>Find the area of the triangular face B</em>

B=\frac{1}{2}(6)(4)=12\ mm^{2}

<em>Find the perimeter of the triangular face P</em>

P=(6+5+5)=16\ mm

we have

L=9\ mm

substitute the values

SA=2(12)+(16)9=168\ mm^{2}

kirill [66]2 years ago
6 0

Answer:

168

Step-by-step explanation:

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The amount of time it takes an ice cube to melt varies inversely to the air temperature. At 30 degrees Celsius, the ice will mel
Anon25 [30]

Answer:

hope this helps A block of ice melts in 2.5 hours when the temperature is 54 degrees.

Step-by-step explanation:therefore you can increase 2.5 and decrease 54 to whatever number you need

4 0
2 years ago
Kelly goes to the store and buys 9 boxes of cookies. The cost of each box is represented with the letter c. Which expression cou
MatroZZZ [7]

Answer:

9c because you don't know how much money Kelly actually spent so instead of doing 9 x the price of each box, you replace it with c, so it's 9c

Step-by-step explanation:

6 0
3 years ago
How do you solve 6(2/3x-3)&gt;3
VARVARA [1.3K]

Answer:

14>3

Step-by-step explanation:

you would need to turn the 3 in the parenthesis into a fraction which would result in 9/3. 2/3 - 9/3= -7/3      

Multiply the 7/3 by 6 and by what I have always been taught, you only multiply the top of the fraction. This would leave it to be 42/3 which would be known as 14.

So therefore the answer would be 14>3

4 0
3 years ago
Which values of a and b make the following equation true? a = 11, b = 7 a = 11, b = 10 a = 28, b = 7 a = 28, b = 10
xz_007 [3.2K]

Answer:

The answer is

<h2>a = 11, b = 7</h2>

Step-by-step explanation:

( {5x}^{7}  {y}^{2} )( { - 4x}^{4}  {y}^{5} ) =  - 20 {x}^{a}  {y}^{b}

Multiply the terms on the left side of the equation

That's

- 20 {x}^{11}  {y}^{7}  =  - 20 {x}^{a}  {y}^{b}

Since the bases are the same we can equate the exponents

That's

{x}^{11}  =  {x}^{a}

a = 11

And

{y}^{7}  =  {y}^{b}

b = 11

Therefore

a = 11 and b = 7

Hope this helps you

7 0
3 years ago
(10а+12 <br>b ) (3а-12b​
liq [111]

Answer:

2(5a+6b)

Step-by-step explanation:

7 0
2 years ago
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