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RUDIKE [14]
3 years ago
13

Is 0.42 a rational number? Explain how you know.

Mathematics
1 answer:
kvasek [131]3 years ago
7 0

Answer:

Yes, any number that can be written as a fraction is a rational number.

Step-by-step explanation:

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Please help me with this and please show me a step by step
nadya68 [22]

Answer:

see explanation

Step-by-step explanation:

The width w is 4 feet longer than two times the length , then

w = 2l + 4

The area (A) of the rectangle is length × width , then

A = l(2l + 4)  ← distribute parenthesis

A = 2l² + 4l

Given A = 16

2l² + 4l = 16

Subtract 16 from both sides

2l² + 4l - 16 = 0 ( divide through by 2 )

l² + 2l - 8 = 0 ← in standard form

(l + 4)(l - 2) = 0 ← in factored form

Equate each factor to zero and solve for l

l + 4 = 0 ⇒ l = - 4

l - 2 = 0 ⇒ l = 2

However l > 0 then l = 2

and w = 2l + 4 = 2(2) + 4 = 4 + 4 = 8

The length of the rectangle is 2 feet and

the width is 8 feet

4 0
3 years ago
How many tablespoons is equivalent to 1.2​
Salsk061 [2.6K]

Answer:

If you mean 1.2 cup then 8 talbespoons.

Step-by-step explanation:

5 0
3 years ago
In the diagram of circle o, chords AC and BD are perpendicular to each other. If mzCOD = 95° what is m<AOB?
NemiM [27]

Answer:

the answer is

<h2><u>C.85</u><u> </u><u>degrees</u></h2>

<h2><em><u>HOPE</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>HELPED</u></em></h2>
8 0
3 years ago
Read 2 more answers
Anybody wanna answer this word problem? If u do plz show ur work and the steps on how to get the answer thanks!
Brilliant_brown [7]
K-mart is open from 8am to midnight on Monday to Saturday- there 16hrs from 8am to 12midnight
And on sunday it’s open from 10am to 8pm - so there is 10hrs from 10am till 8pm ....
So this is how you find your answer ...........✌️
*8am to 12midnight - 16hrs (Monday to Saturday)
*10am to 8pm - 10 hrs (Sunday)
*16hrs+10hrs=26
*26x7(days in a week )
*26x7=182
*therefore it’s opened for 182 hrs a week
....hrs means hours



3 0
3 years ago
What is constant of proportionality? explain as if u were to a 5 year old
Y_Kistochka [10]
<span><span>If one variable is always the product of the other and a constant, the two are said to be directly proportional. <span>x and y</span> are directly proportional if the ratio <span>y/x</span> is constant.</span><span>If the product of the two variables is always a constant, the two are said to be inversely proportional. <span>x and y</span> are inversely proportional if the product xy is constant.</span></span>In mathematics<span>, two variables are </span>proportional<span> if a change in one is always accompanied by a change in the other, and if the changes are always related by use of a constant multiplier. The constant is called the </span>coefficient<span> of proportionality or </span>proportionality constant<span>.

</span>
7 0
3 years ago
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