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max2010maxim [7]
3 years ago
9

I'm in 5th grade and need help with and ​

Mathematics
2 answers:
patriot [66]3 years ago
4 0

Answer:

11046.4

Step-by-step explanation:

Cloud [144]3 years ago
3 0

Answer:

the answer is 11046.4

Step-by-step explanation:

if u can pls can u give me brainiest  

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Find the solutions of the quadratic equation 14x^2+9x+10=014x
Vesnalui [34]

Answer:

Option B. x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

14x^{2}+9x+10=0

so

a=14\\b=9\\c=10

substitute in the formula

x=\frac{-9(+/-)\sqrt{9^{2}-4(14)(10)}} {2(14)}

x=\frac{-9(+/-)\sqrt{-479}} {28}

Remember that

i=\sqrt{-1}

substitute

x=\frac{-9(+/-)\sqrt{479}i} {28}  

x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i

5 0
3 years ago
jaxon earned $90 at his job when he worked for 9 hours . what was his hourly pay rate in dollars per hour ?
user100 [1]

Answer:

$10 dollars

Step-by-step explanation:

10x9=90

3 0
3 years ago
Read 2 more answers
The trip from Carville to Planesborough takes 4 1/2 hours when traveling at a constant speed of 70 miles per hour. How long, in
gregori [183]

Answer:

5h 15 min

Step-by-step explanation:

70 mph * 4,5 = 315 miles

315 / 60 = 5,25h

5,25h = 5 1/4h = 5h 15 min

5 0
2 years ago
Read 2 more answers
What types of problems can be solved using the GCF what types of problems can be solved using the least common multiple
melamori03 [73]
The Least Common Multiple is used to add fractions with unlike denominators:
Three things can happen:
1/3 + 1/7 - the LCM is the product of the denominators (in this case 21)
2/8 + 3/16 - the LCM is the greater denominator  (in this case 16)
2/9 + 5/6 - the LCM is lower than the product of the denominators (in this case it is 18)

The Greatest Common Factor is used to reduce fractions quickly:
\frac{48}{72} ÷ \frac{24}{24} = \frac{2}{3}
By using the GCF -in this case 24, I reduced the fraction in a single step.
If I kept dividing by 2/2 (not the GCF), it would take much longer:
48/72 = 24/36 = 12/18 = 6/9 and then I would still have to divide 6/9 by 3/3 to get 2/3


5 0
3 years ago
What is the m2ABC?<br> a) m ABC = 15°<br> b) m2ABC = 45°<br> c) MLABC = 60°<br> d) MZABC = 75°
WITCHER [35]

Answer:

m∠ABC = 60°

Step-by-step explanation:

4 0
3 years ago
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