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3 years ago

When a 49 pound weight is attached to a spring, the spring

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

6 0

im not for sure but I think the answer is 9! my reasoning is below,,

Step-by-step explanation:

$\frac{49}{7} = \frac{63}{x}$

do the crossing method and it would result in this

(49×x) = (63×7)

after simplifying both sides

49x = 441

divide both sides by 49 and the result will be

x = 9 !!

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What are the solutions to the system of equations <br> {-x+y=4<br> {y+12=x^2+x

Gnoma [55]

Answer:

Step-by-step explanation:

$y=4+x$ ............................................ (1)

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now equate both (1) and (2)

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$=>x^2=16$

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now substitute the values of x ,

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so, solution set:

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3 years ago

10) Find the measure of angle D. Hint: you must do two math problems to solve

NISA [10]

Answer:

Option A.) 43°

Step-by-step explanation:

Part 10)

step 1

Find the length of side EG

see the attached figure to better understand the problem

we know that

In the right triangle EGF

$cos(65^o)=\frac{EG}{EF}$ ----> by CAH (adjacent side divided by the hypotenuse)

substitute the given values

$cos(65^o)=\frac{EG}{11}$

solve for EG

$EG=(11)cos(65^o)\\EG=4.65\ cm$

step 2

Find the measure of angle D

In the right triangle DEG

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substitute the given values

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3 years ago

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kari74 [83]

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Step-by-step explanation: I cannot see the picture to answer your question but I hope this helps you find put your answer. :)

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Step-by-step explanation:

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3 years ago