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adoni [48]
3 years ago
8

Please answer this question too! :D

Mathematics
1 answer:
Artyom0805 [142]3 years ago
5 0

Answer:

A

Step-by-step explanation:

We can find the surface area of the object by adding the surface areas of each part. We have many rectangle faces to count and two triangular faces. Each has a formula for the area. We will find the area of each and then add them all together.

Triangle - 0.5 *b*h

Rectangle - b*h

<u>Triangles</u>

There are two triangles on either side. The height is 1.5. The base is 1.8.

0.5(1.5)(1.8)=1.35 meters squared

Since there are two, we will add 1.35+1.35 in our final calculation.

<u>Rectangles</u>

We will start by calculating the largest rectangle on the side. It has height of 4 and a base of 2.5 (shown above left).

4(2.5)=10

Since there are two (one we can see and one we can't), we will add 10+10 in our final calculation.

Next we calculate the top and bottom. The height is 3 and the base is 2.5 on top. But the bottom sticks out more and adds 1.8 to its base.

Top - 3(2.5)=7.5

Bottom-3(2.5+1.8)=12.9

Finally, we will calculate the front side and back(not visible) as well as the slant up front. The back side has height 4 and base 3. The front side has base 3 and height 4-1.5=2.5. The slant has base 2.3 and height 3.

Back - 4(3)=12

Front- 3(2.5)=7.5

Slant - 3(2.3)=6.9

We add all together for the total surface area: 1.35+1.35+10+10+7.5+12.9+12+7.5+6.9=69.5 meters squared.

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If h(x)= -kx + 14 and h(2)=18, find the value of k
trasher [3.6K]

h(x)= -kx + 14

18 = -k*2 + 14   since x=2

18 = -2k +14

subtract 14 from each side

4 = -2k

divide by -2

-2 =k


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2.2X + 2.2 = 1.1<br> x = [?]
Degger [83]

Answer:

x = 0.5

Step-by-step explanation:

2.2X + 2.2 = 1.1

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Sidana [21]

Answer:

$0.0646 is the expected value of the draw.

Step-by-step explanation:

1 nickel = 5 cents

1 dime = 10 cents

1 penny = 1 cent

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Probability that a nickel is selected is = 14/35

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Which of the following is the graph of y=- square root x+1
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Answer:

The graph in the attached figure

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we have

y=-\sqrt{x+1}

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<u>The x-intercept </u>is the value of x when the value of y is equal to zero

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For y=0 -----> 0=-\sqrt{x+1} ----->x=-1

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we know that

The radicand must be positive

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x+1\geq0

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All real numbers greater than or equal to -1

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using a graphing tool

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