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Inessa [10]
4 years ago
14

Determine whether the ordered pair is a solution of the given system

Mathematics
1 answer:
Angelina_Jolie [31]4 years ago
7 0

Answer:

yes

Step-by-step explanation:

To determine if the ordered pair is a solution, substitute the x- coordinate into the right side of the inequality and compare the value obtained to the left side.

2x + 4 = 2(2) + 4 = 4 + 4 = 8 and 12 > 8

3x + 7 = 3(2) + 7 = 6 + 7 = 13 and 12 < 13

Both inequalities are true for (2, 12), thus it is a solution

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if two pyramids are similar and the ratio between the lengths of their edges is 2;7 what is the ratio of their volumes? ...?
jok3333 [9.3K]
<span>The answer is 8:343.

</span>We can use Galileo's square cube law to calculate the ratio between two similar pyramids. The law is used to describe the change of the area or the volume of the shape when their dimensions increase or decrease:
\frac{V_1}{V_2} =( \frac{l_1}{l_2} )^{3} \\<span>
</span><span><span> <span> <span> <span> <span> <span> <span> <span> <span> <span> <span> </span></span></span></span></span></span></span></span></span> </span></span> </span>
V₁ and V₂ - volumes of pyramids,
l₁ and <span>l</span>₂ - the edges of pyramids.
<span>
</span>\frac{V_1}{V_2} =( \frac{l_1}{l_2} )^{3} \\ \frac{V_1}{V_2} =( \frac{2}{7} )^{3} \\ \frac{V_1}{V_2} = \frac{2^{3}}{7^{3}} \\ \frac{V_1}{V_2} = \frac{8}{343} \\<span>
</span>
3 0
3 years ago
Read 2 more answers
What is the domain of y =<br> cos-1^x?
kirza4 [7]

Answer:

A

Step-by-step explanation:

correct on edge

3 0
3 years ago
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Roy has a total of 10 quarters and dimes. The value of the coins is $2.05. He has more quarters then dimes. How many of each coi
Bond [772]

Answer:

Step-by-step explanation:

9 quarters and 8 dimes

9Q= 2.25

8D= 0.80

If you add then together you would get 2.05

5 0
4 years ago
8 &lt; 2b or 2b + 15 &lt; 5
ioda

give me banlist i am your friend lil take 75 option d is the answer

We are given inequalities as

First inequalities:

we will solve for b

divide both sides by 2

Second inequality:

we can solve for b

Divide both sides by 2

so, we will get

OR

so, option-D...........Answer

3 0
3 years ago
Scientific notation
ozzi
The answer is 5 times 10^10
7 0
3 years ago
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