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2 years ago

- x+5y = 19 X+ 2 y = 16 Solving systems using elimination

Mathematics

2 answers:

Vesna [10]2 years ago

7 0

Hope this helps with the answer ;)

alina1380 [7]2 years ago

6 0

Answer:

Step-by-step explanation:

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In the figure, a square is inside another bigger square.

evablogger [386]

Answer:

Part 1) The length of the diagonal of the outside square is 9.9 units

Part 2) The length of the diagonal of the inside square is 7.1 units

Step-by-step explanation:

step 1

Find the length of the outside square

Let

x -----> the length of the outside square

c ----> the length of the inside square

we know that

$x=a+b=4+3=7\ units$

step 2

Find the length of the inside square

Applying the Pythagoras Theorem

$c^{2}= a^{2}+b^{2}$

substitute

$c^{2}= 4^{2}+3^{2}$

$c^{2}=25$

$c=5\ units$

step 3

Find the length of the diagonal of the outside square

To find the diagonal Apply the Pythagoras Theorem

Let

D -----> the length of the diagonal of the outside square

$D^{2}= x^{2}+x^{2}$

$D^{2}= 7^{2}+7^{2}$

$D^{2}=98$

$D=9.9\ units$

step 4

Find the length of the diagonal of the inside square

To find the diagonal Apply the Pythagoras Theorem

Let

d -----> the length of the diagonal of the inside square

$d^{2}= c^{2}+c^{2}$

$d^{2}= 5^{2}+5^{2}$

$d^{2}=50$

$d=7.1\ units$

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2 years ago

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Tyler spent 17,700 seconds completing a 1,000 piece puzzle.

Pavlova-9 [17]

Answer is 5 hours
Explained
I divided 17,700 by 60 seconds to get minutes
Then I divided by 60 minutes to get hours
4.916 hours rounded to 5 hours

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1 year ago

A number is chosen at random from the first 100 positive integers. Find the probability that the number chosen is prime.

Ksenya-84 [330]

Answer: The answer is B). 1/4

Step-by-step explanation:

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What is the approximate area of this figure?

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Answer:

Step-by-step explanation:

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Evaluate 19+5 times 5 divided by 19-15

mezya [45]

Answer:

19.2

Step-by-step explanation:

Just solve it

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