3 years ago

I need help i dont know how to do it and i dont know the answer

Mathematics

1 answer:

Aloiza [94]3 years ago

3 0

Answer:

125 ft²

Step-by-step explanation:

We know that that surface area of the triangular prism that will be covered with insulation is equal to the area of the two triangular faces, plus the two lateral rectangular faces.

So you get:

SA = 2 [ $\frac{1}{2}\\$ (15)(15)] + 2 [(30)(15)] = 1,125 ft²

You might be interested in

What is the mixed number for 4.8

kozerog [31]

It is 4 $\frac{8}{10} or \frac{4}{5}$

8 0

3 years ago

Read 2 more answers

Find the value of x<br>answer options <br>9,15,10,14

jekas [21]

Answer:

Step-by-step explanation:

Hope this helps

8 0

3 years ago

Mr. Barber uses 7/9 yard of wire to put up a ceiling fan. He uses 1/3 yard of wire to fix a switch How much more wire does he us

Oliga [24]

1/3 is the same as 3/9. To solve this, subtract 3/9 from 7/9.

$\frac{7}{9}-\frac{3}{9}= \frac{4}{9}$

Your answer is $\frac{4}{9}$

4 0

3 years ago

a school has 2 computer labs.Each lab has 30 computers. A total of 6 computers in the school are not working. which experission

jasenka [17]

Answer:

30(2)-6

Step-by-step explanation:

30 computers in 2 labs minus the 6 broken computers.

3 0

3 years ago

Read 2 more answers

Over which interval is the graph of the parent absolute value function f(x) = |xl decreasing?

Romashka [77]

Answer:

(-∞,0)

Step-by-step explanation:

Graph y=|x|

Note that the graph is shaped like a V. The left half of the graph is decreasing from -∞ up until 0 when it hits the origin and starts to increase. Put this into interval notation: (-∞,0).

8 0

4 years ago

Read 2 more answers