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olganol [36]
3 years ago
5

Two numbers have a sum of 9 when added together.

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0

Answer:40

Step-by-step explanation:+$)#)#

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What is the volume of this triangular Pyramid photo attached
storchak [24]

To find the volume of a triangular pyramid, the formula is:

V=\frac{1}{3}(Area\text{ }of\text{ }thebase)(height)

So we start by finding the area of the base, which is in the shape of a right triangle in this case.

The area of a right triangle is equal to 1/2 x base x height.

\begin{gathered} A=\frac{1}{2}bh \\  \\ A=\frac{1}{2}(5)(6) \\  \\ A=15\text{ square feet} \end{gathered}

We use this area to find the volume.

\begin{gathered} V=\frac{1}{3}Ah \\  \\ V=\frac{1}{3}(15)(6) \\  \\ V=30\text{ cubic feet} \end{gathered}

The volume of the triangular pyramid is 30 cubic feet.

3 0
1 year ago
the perimeter of the top of a desk is 54 inches if the length of the desk is 15 inches what is the width of the desk
nexus9112 [7]
54-15=39
if you want to check your answer you add 39+15=54

6 0
3 years ago
Read 2 more answers
Noah drew 9 hearts, 6 stars, and 12 circles. What is the ratio of circles to hearts
olasank [31]

Answer:

12:9

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If 4/5 of the population of a certain town is
kkurt [141]

Hi! I'm happy to help!

Our town is composed of 2,000 people. Of those 2,000 people, 4/5 of them are middle class. The word 'of' usually means multiplication when it is in a word problem. So, we will multiply 2,000 by 4/5. When multiplying a whole number, we just multiply it by the numerator (top) and leave the denominator. (bottom)

2,000×4

8,000

8,000/5

Fractions are just a different way of putting division, so we can change this to a division problem:

8,000÷5=

1,600

1,600 of the people are middle class.

I hope this was helpful, keep learning! :D

8 0
3 years ago
The demand function for a product is given by p = −0.05x2− 0.3x + 8 where p is the unit price in dollars and x is the weekly dem
mr Goodwill [35]

Answer:

The answer is 5300 units.

Step-by-step explanation:

The equation will be exactly lie below if the price is 5$:

5=-0.05x^2-0.3x + 8\\0=-0.05x^2-0.3x+3

Roots of the parabol will be:

x_{1}=-11.3\\x_{2}=5.3

In fact that there will be no negative production, The consumer surplus will be 5300 units

6 0
3 years ago
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