All categories

2 years ago

Surface Area of a Triangular Pyramid, please help!

Mathematics

1 answer:

8090 [49]2 years ago

5 0

Answer:

surface area of the triangular pyramid

=(1/2×9×7.8)+(3×1/2×9×12.3)

=35.1+166.05

=201.15 inch²

You might be interested in

A pair of shoes is on sale at 30% off the original price. If the original price is $50, what is the sale

alexdok [17]

Answer:

$35

Step-by-step explanation:

5 0

2 years ago

A quantity with an initial value of 6200 decays continuously at a rate of 5.5% per month. What is the value of the quantity afte

ELEN [110]

Answer:

410.32

Step-by-step explanation:

Given that the initial quantity, Q= 6200

Decay rate, r = 5.5% per month

So, the value of quantity after 1 month, $q_1 = Q- r \times Q$

$q_1 = Q(1-r)\cdots(i)$

The value of quantity after 2 months, $q_2 = q_1- r \times q_1$

$q_2 = q_1(1-r)$

From equation (i)

$q_2=Q(1-r)(1-r) \\\\q_2=Q(1-r)^2\cdots(ii)$

The value of quantity after 3 months, $q_3 = q_2- r \times q_2$

$q_3 = q_2(1-r)$

From equation (ii)

$q_3=Q(1-r)^2(1-r)$

$q_3=Q(1-r)^3$

Similarly, the value of quantity after n months,

$q_n= Q(1- r)^n$

As 4 years = 48 months, so puttion n=48 to get the value of quantity after 4 years, we have,

$q_{48}=Q(1-r)^{48}$

Putting Q=6200 and r=5.5%=0.055, we have

$q_{48}=6200(1-0.055)^{48} \\\\q_{48}=410.32$

Hence, the value of quantity after 4 years is 410.32.

4 0

2 years ago

Read 2 more answers

What is ratio 1 hour and 15 minutes to 50 minutes in lowest terms?

iragen [17]

Answer:

First, convert the hour to minutes.

1 hr = 60 mins

15 mins: 60 mins

1:4

5 0

2 years ago

Read 2 more answers

How can you evaluate this expression?|18| =

Svetllana [295]

That is just absolute value, basically what it means is take off whatever sign there was attached to it (such as a negative sign)

7 0

3 years ago

Read 2 more answers

A=h(b+c) solve for h

Gnesinka [82]

Answer:

a/(b+c)=h

Step-by-step explanation:

a=h(b+c)

a/(b+c)=h

Just one step.

8 0

3 years ago