3 years ago

Please help ill give you brainliest

Mathematics

1 answer:

SVEN [57.7K]3 years ago

3 0

The first one is 154

The second one is 12.65^2

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Machines a and t were both cleaned this week machine a is cleaned every 15 weeks and machine t is cleaned every 12 weeks what is

lapo4ka [179]

Answer:

60 weeks

Step-by-step explanation:

Factor both numbers 12 and 15:

$12=2\cdot 2\cdot 3;$
$15=3\cdot 5.$

Find LCM(12,15). The common factor is only 3, multiply ths common factor by all factors that remain. Then

$LCM(12,15)=3\cdot 2\cdot 2\cdot 5=60.$

This means that the fewest number of weeks that will pass before both machines are cleaned again in the same week is 60 weeks.

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4 years ago

Huntly Billings bought a $1,000 bond for $1,050. What was the quotation of the bond?

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Step-by-step explanation:

1000 for 50 is store profit

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3 years ago

Given f(x) = x^2 + 2 and g(x) = 2 – x, find a simplified expression for f(2x) + g(3x).

Blababa [14]

Answer:

f(2)+g(3) = 5

Step-by-step explanation:

Given that,

f(x) = x² + 2

g(x) = 2-x

We need to find the value of f(2)+g(3).

f(2) = 2² + 2 = 6

g(3) = 2 – 3 = -1

So,

f(2)+g(3) = 6+(-1)

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Hence, the value of the given expression is 5.

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=15%20x%5E%7B2%7D%20%2B14x-49%3D0" id="TexFormula1" title="15 x^{2} +14x-49=0" alt="15 x^{2} +1

Alex777 [14]

$15x^2+14x-49=0\\\\
Terms:\\
a=15\ \ \ \ b=14\ \ \ \ c=-49\\
Quadratic\ Formula:\\\\
x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\
x=\dfrac{-14\pm\sqrt{196+2,940}}{30}\\\\
x=\dfrac{-14\pm\sqrt{3,136}}{30}\\\\
x=\dfrac{-14\pm56}{30}$

$Roots:\\\\
x'=\dfrac{-14+56}{30}\\\\
x'=\dfrac{42}{30}\\\\
x'=\dfrac{21}{15}\\\\
\boxed{x'=\dfrac{7}{5}}\\\\\\\\
x''=\dfrac{-14-56}{30}\\\\
x''=\dfrac{-70}{30}\\\\
\boxed{x''=\dfrac{-7}{3}}$

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3 years ago

Read 2 more answers

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Answer:

try asking a master, ok?

Step-by-step explanation:

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