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2 years ago

I need An answer FAST!!!!

Mathematics

1 answer:

Savatey [412]2 years ago

6 0

Answer
C

Explination

Uh I’m smart

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Find the surface area!<br> Thank you!!

Evgen [1.6K]

Answer:

$SA= 720 m^2$

Step-by-step explanation:

$x=\sqrt{5^2+12^2}=13m$

$AS=2*1/2*12+12*22+5*22+13*22$

$= 60+264+110+13*22$

$AS= 720m^2$

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<u>hope it helps...</u>

<u>have a great day!!</u>

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3 years ago

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A train travels 220 miles in 4 hours. What is the train's speed in feet per minute?

Katena32 [7]

220 miles in 4 h = 55 mph multiply this by 5280 to get feet per hour then divide this by 60 to get ft/min

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3 years ago

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SC.6.E.6.14.

tester [92]

It has to be A I’m sorry if I’m wrong

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2 years ago

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Find the solution set of the following quadratic equations using the quadratic formula.

oksian1 [2.3K]

Answer:

<h3> 1) $x_1=\dfrac{7+\sqrt{13}}2\,,\quad x_2=\dfrac{7-\sqrt{13}}2$ </h3><h3> 2) $x_1=-\dfrac13\,,\quad x_2=-3$ </h3>

Step-by-step explanation:

$x^2 - 7x + 9 = 0\quad\implies\quad a=1\,,\ b = -7\,,\ c=9\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-7)\pm\sqrt{(-7)^2-4\cdot1\cdot9}}{2\cdot1}=\dfrac{7\pm\sqrt{49-36}}2\\\\x_1=\dfrac{7+\sqrt{13}}2\,,\quad x_2=\dfrac{7-\sqrt{13}}2$

<h3>2)</h3><h3> $3x^2 + 10x=-3\\\\3x^2+10x+3=0\quad\implies\quad a=3\,,\ b =10\,,\ c=3\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-10\pm\sqrt{10^2-4\cdot3\cdot3}}{2\cdot3}= \dfrac{-10\pm\sqrt{100-36}}6\\\\x_1=\dfrac{-10+\sqrt{64}}6=\dfrac{-10+8}6=-\dfrac13\,,\qquad x_2=\dfrac{-10-8}6=-3$ </h3>

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3 years ago

HELPP ME PLEASEEE!!<br> explain your thinking on who is correct

sashaice [31]

Answer:

Both

Step-by-step explanation:

They will both give you the same answer.

-13-5 = -18

-13 + -5 = -18

6 0

3 years ago