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3 years ago

PLS HELP ME ASAP FOR 14!! (SHOW WORK!!) + LOTS OF POINTS!! GIVING THANKS!

Mathematics

1 answer:

ale4655 [162]3 years ago

7 0

I can't exactly see those. Sorry I can't help you

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Is 3pi/2pi a rational number or an irrational number? Explain your reasoning

Vadim26 [7]

Answer:

It is rational

Step-by-step explanation:

The pi terms cancel out when you divide. This is due to the rule x/x = 1 where x is any number you want except x cannot be zero. So replace x with pi and we have pi/pi = 1

Therefore,

(3pi)/(2pi) = (3/2)*(pi/pi)

(3pi)/(2pi) = (3/2)*1 .... use the rule mentioned above

(3pi)/(2pi) = 3/2

we get a fraction or a ratio of two whole numbers, so this proves that the given expression is rational.

7 0

3 years ago

Evaluate 2b^2 − 4a + 4a^2 for a = 3 and b = −8.

kipiarov [429]

(2*(-8)^2)-(4*3)+(4*3^2)

128-12+36

152

6 0

3 years ago

How much sand would you need to fill this box ?

grin007 [14]

Step-by-step explanation:

We have,

l =5ft

b=2ft

h=3ft

$volume(v) = l \times b \times h$

v = (l*b*h)

v = (5*2*3)ft

v = (30)ft

.•. v = 30ft

3 0

3 years ago

Mrs. Lovell’s class is baking cookies. They need 3 3/5 pounds of sugar and 5 1/3 pounds of flour. When they mix the sugar and fl

makkiz [27]

8 14/15 pounds altogether if you needed the answer in mixed numbers simplified.

5 0

3 years ago

Read 2 more answers

Un carpintero quiere cortar una plancha de triple y de 1m de largo y 60 cm de ancho, en cuadrados lo más grandes posibles. El ca

Ugo [173]

Answer: $20\ cm$

Step-by-step explanation:

The first step to solve the exercise is to make the conversion from meters to centimeters.

Since $1\ m=100\ cm$ , then the dimensions of the wood board in centimeters are:

$Lenght=100\ cm\\\\Width=60\ cm$

Now, you must find the Greatest Common Factor (GCF). The steps are:

- Descompose 100 and 60 into their prime factors:

$100=2*2*5*5=2^2*5^2\\60=2*2*3*5=2^2*3*5$

- Multiply the commons with the lowest exponents:

$GCF=2^2*5\\\\GCF=4*5\\\\GCF=20$

Therefore, the side lenght of each square must be:

$s=20\ cm$

7 0

3 years ago

PLS HELP ME ASAP FOR 14!! (SHOW WORK!!) + LOTS OF POINTS!! *GIVING THANKS!*

PLS HELP ME ASAP FOR 14!! (SHOW WORK!!) + LOTS OF POINTS!! GIVING THANKS!