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Stella [2.4K]
3 years ago
14

Plese tell how to solve this​

Mathematics
1 answer:
klasskru [66]3 years ago
8 0

Answer:

hope you understand the answers

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Find volume of this prism
attashe74 [19]

Answer:

324 km²

Step-by-step explanation:

The prism shown is a square pyramid

The volume of a square pyramid can be calculated by using this formula

V=lw\frac{h}{3}

where l = length of base, w = width of base and h = height

We are given the following dimensions...

length of base = 9 km

width of base = 9 km

height = 12 km

To find the volume of the pyramid, we plug in these given values into the formula

Hence,

V = 9 * 9* \frac{12}{3} \\\frac{12}{3} =4\\V = 9*9*4\\9*9=81\\81*4=324\\

V = 324

6 0
3 years ago
Read 2 more answers
A cell phone company dropped the price by 7%. Which expression shows the new price of the phones(p)? A 0.07p B p-1.07 C p-0.07 D
Drupady [299]

Answer:

option D

Step-by-step explanation:

Let the price be p

7% of price = 0.07p

Price after decrease = p - 0.07p

3 0
2 years ago
Part A: If (7^2)^x = 1, what is the value of x? Explain your answer.
kotykmax [81]
For part a x=0 because anything to the power of 0 is 1
For part b any number could be x, because 7^0 is one and 1 to the power of anything will be 1
Hope this helps!
3 0
3 years ago
Solve for 2x^2-4x+5=6
Softa [21]
To solve for a variable, you need to get it (x) by itself.

2x² - 4x + 5 = 6   Subtract 6 from both sides
2x² - 4x - 1 = 0   Plug this into the Quadratic Formula

a = 2 , b = -4 , c = -1
x = \frac{-b \pm  \sqrt{b^2 - 4ac} }{2a}   Plug in your values
x = \frac{-(-4) \pm \sqrt{(-4)^2 - 4(2)(-1)} }{2(2)}   Simplify
x = \frac{4 \pm \sqrt{16 + 8} }{4}   Simplify
x = \frac{4 \pm 2\sqrt{6} }{4}   Simplify by removing a 2 from every term
x = \frac{2 \pm \sqrt{6} }{2}   Simplify by taking the fraction apart
x = \frac{2}{2}  \pm  \frac{ \sqrt{6} }{2}   Change \frac{2}{2} to 1
x = 1 \pm  \frac{ \sqrt{6} }{2}   Simplify \frac{ \sqrt{6} }{2} to \sqrt{ \frac{3}{2} }
x = 1 \pm \sqrt{ \frac{3}{2} }
4 0
3 years ago
PLS HELP!! THIS IS A VERY HARD QUESTION!! I NEED IT TO BE DONE!!!! ILL GIVE BRAINLIEST!!!! PLEASE!!!!
krek1111 [17]

Answer:

990.36$

Step-by-step explanation:

You times 18 by 42 then you get 756 then you times that by 1.31$

7 0
3 years ago
Read 2 more answers
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