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3 years ago

7

Rupali has a piece of string that is 5/8 hard long. She wants to cut the string into 4 equal pieces. How long should each piece

be

1 answer:

AlexFokin [52]3 years ago

4 0

The answer would be 1/7 in fraction form , and 0.142857 in decimal form. hope this helps!

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Answer fast plzzzzzzzzzzz

stealth61 [152]

Answer:

3/25

Step-by-step explanation:

This is because when you divide 12/100 and simplify. All you need to focus on is that there are 100 tiles and twelve of them are with the letter E the simplify from there. all the other information is just there to distract you.

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3 years ago

Which of the following equations have complex roots?

mestny [16]

Answer:

A

Step-by-step explanation:

Complex roots of quadratic functions occur when the <u>discriminant is negative</u>.

<u>Discriminant</u>

$b^2-4ac\quad\textsf{when}\:\:ax^2+bx+c=0$

Evaluate the discriminant of each of the given equations.

$\textsf{A.} \quad 3x^2+2=0$

$\implies a=3, \quad b=0, \quad c=2$

$\implies b^2-4ac=0^2-4(3)(2)=-24$

As -24 < 0 the equation will have complex roots.

$\textsf{B.} \quad 2x^2+1=7x$

$\implies 2x^2-7x+1=0$

$\implies a=2, \quad b=-7, \quad c=1$

$\implies b^2-4ac= (-7)^2-4(2)(1)=41$

As 41 > 0 the equation does not have complex roots.

$\textsf{C.} \quad 3x^2-1=6x$

$\implies 3x^2-6x-1=0$

$\implies a=3, \quad b=-6, \quad c=-1$

$\implies b^2-4ac=(-6)^2-4(3)(-1)=48$

As 48 > 0 the equation does not have complex roots.

$\textsf{D.} \quad 2x^2-1=5x$

$\implies 2x^2-5x-1=0$

$\implies a=2, \quad b=-5, \quad c=-1$

$\implies b^2-4ac=(-5)^2-4(2)(-1)=33$

As 33 > 0 the equation does not have complex roots.

Learn more about discriminants here:

brainly.com/question/27444516

brainly.com/question/27869538

Learn more about complex roots here:

brainly.com/question/26344541

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2 years ago

Complete the point-slope equation of the line through (-5,4) and (1,6)

swat32

The slope is 1/3
hope that help

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3 years ago

HELP ME WITH THSI PROVLEM PLEASE MATH PROBLME

Katarina [22]

Answer:

4W=25

providing the distances from the hanger wire to the weights are equal.

Step-by-step explanation:

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3 years ago

Which number rounds up when rounded to the nearest hundredth?

mart [117]

The correct answer is b

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3 years ago

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