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Llana [10]
3 years ago
9

I need help with 20 and 21

Mathematics
1 answer:
7nadin3 [17]3 years ago
6 0
Https://us-static.z-dn.net/files/d63/6f064638901e33bea26f4fc25a74aa69.jpg

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9.
siniylev [52]

Answer:

Slant height (s)= 12.1 cm

Step-by-step explanation:

Given: Base= 4.5 cm.

           Surface area of right square pyramid= 129.5 cm.

First, calculating slant height (s) of right square pyramid.

Surface area of square pyramid= (a^{2} +2\times a\times s)

a= side of square base.

s= slant height

∴ 129.5= (4.5^{2} + 2\times 4.5\times s)

⇒ 129.5= (20.25+2\times 4.5\times s)

⇒ 129.5= (20.25+9\times s)

Now, opening the parenthesis and subtracting both side by 20.25.

⇒ 109.25=9\times s

cross multiplying both side

∴ Slant height (s)= 12.1

5 0
4 years ago
The Jackson High School gymnastics team sells calendars for their annual fundraiser. The function rule below describes the amoun
Virty [35]
A=178
b= 253
c=298
d= I cant make a table Dx
8 0
3 years ago
Give an explanation please thank you
Flauer [41]

The statement of Gabriella, “The graph will not have an inverse function.” is incorrect. Option B is correct.

Let us understand about the given graph:

The given graph is a graph of a cube root function.

So, the statement of Noelle, “The graph represents the function f(x)=\sqrt[3]{x}." is correct.

So, option A is not correct.

The inverse of a cube root function is a cubic function.

So, the statement of Gabriella, “The graph will not have an inverse function.” is incorrect.

So, option B is correct.

The domain and range of the cube root function are all real numbers.

So, the statement of Julian, “The domain and range of the function is all real numbers.” is correct.

So, option C is not correct.

From the graph, we can see f(-1) = -1.

So, the statement of Yemen, “The value of f(-1) = -1.” is correct.

So, option D is not correct.

Thus, the statement of Gabriella, “The graph will not have an inverse function.” is incorrect. Option B is correct.

To learn more about the cube root function visit:

brainly.com/question/28212425

#SPJ1

3 0
1 year ago
If you answer both I will give Brainliest they have to be correct.Good luck
svetlana [45]

Answer:

3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help me! Im so confused. If you could explain, too that would be great!!! <3
Zielflug [23.3K]

Answer:

the base length is 8 units

Step-by-step explanation:

You can use pythagorean theorem to solve this

8 0
2 years ago
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