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3 years ago

-7+(63/9) Evaluate the Following Expression

Mathematics

1 answer:

hodyreva [135]3 years ago

3 0

Answer:

Step-by-step explanation:

$-7+(\frac{63}{9})=-7+7=0$

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Use the quadratic formula to find the solution to the question <br> 3x^2-10x+5=0

nlexa [21]

Answer:

$x_{1} =$ $\frac{5 + \sqrt{10} }{3}$ and $x_{2} =$ $\frac{5 - \sqrt{10} }{3}$

Step-by-step explanation:

3x^2-10x+5=0

$x_{1}$ = $\frac{10 + \sqrt{10^{2}-4*3*5 } }{2*3}$ $x_{2} =$ $\frac{10 - \sqrt{10^{2}-4*3*5 } }{2*3}$

$x_{1} =$ $\frac{10 + \sqrt{100-60} }{6}$ $x_{2} =$ $\frac{10 - \sqrt{100-60} }{6}$

$x_{1} =$ $\frac{10 + \sqrt{40} }{6}$ $x_{2} =$ $\frac{10 - \sqrt{40} }{6}$

$x_{1} =$ $\frac{10 + 2\sqrt{10} }{6}$ / 2 $x_{2} =$ $\frac{10 - 2\sqrt{10} }{6}$ / 2

$x_{1} =$ $\frac{5 + \sqrt{10} }{3}$ $x_{2} =$ $\frac{5 - \sqrt{10} }{3}$

3 0

3 years ago

12. A rectangle PQRS is congruent to rectangle JKLM. If the area of rectangle PQRS is

Anton [14]

Answer:

Step-by-step explanation:

The same if the rectangles are congruent. Orientation won't matter.

5 0

3 years ago

Factor<br> 10x + 100x + 250

deff fn [24]

Answer: 10(11x+25)

I think…

5 0

2 years ago

Read 2 more answers

Jerome rides his bike 10 kilometers everyday. How many meters does he ride?

snow_tiger [21]

Well this is a very vague question... (But I can still answer it since I'm cool))

1 kilometer is 1000 meters so if ya do the math correctly you will get 10,000 meters

But since this is a vague answer I can't be sure since I don't know the time aspect of the question.

Hope this helps my friend

-Roma Invicta

3 0

3 years ago

a rectangular rug covers 1200 square inches on the floor. The length of the rug is 30 inches .What is the length in inches of th

Crank

Answer:

The length is 30 (which you aready said) and the width is 40

Step-by-step explanation:

1200/30=40

(another way)

120/30=4 (multiply each side by ten)

8 0

3 years ago