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Mekhanik [1.2K]
3 years ago
8

HURRY PLEASE I really need this to pass my class

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0

Problem 1.

\sqrt{\dfrac{2160x^8}{60x^2}} =

= \sqrt{36x^6}

= 6x^3

Problem 2.

\sqrt{400x^{100}} =

= 20x^{50}

Problem 3.

\sqrt{100x^{36}} =

= 10x^{18}

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Marie made lasagna for dinner. She ate 1/6 of it, Morris ate 1/3 of it, and Larry ate 1/4 of it. How much of the lasagna was lef
Makovka662 [10]

Answer:

1/12 of the lasagna was left

Step-by-step explanation:

To find out how much of the lasagna has been eaten, you have to find the least common denominator (LCD) for the three fractions. The LCD of 1/3, 1/4, and 1/6 is 12 (3x4x6). Now convert all the fractions so that all of their denominators is equal to 72 (1/3=4/12, 1/4=3/12, 1/6=2/12), then add all of the fractions together (4/12 + 3/12 +2/12 = 3/4). 3/4 of the lasagna has been eaten and the remaining lasagna is 1/12 (1-3/4=4/4-3/4).

8 0
2 years ago
Read 2 more answers
The density of a fish tank is 0.2 fish over feet cubed . There are 8 fish in the tank. What is the volume of the tank?
Arisa [49]

Answer: 16 feet cubed

Step-by-step explanation:

8 0
3 years ago
X2-5x-14=0<br> A=1 B=-5C=-14
fredd [130]

Answer:

x²+5x-10=0

x²+(2-7)x-10=0

x²+2x-7x-10=0

x(x+2)-7(x+2)=0

=x+2=0

=x=-2

=x-7=0

=x=7

hope may be right.....

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Ab- 0.5b + 1/2 when a = 1 and b = 5
aniked [119]
Since you already know the values of a and b, all you have to do is split the problem into little parts and plug everything into its spot. AB would equal 1(5) which is 5. Athens 0.5b would equal, 0.5(5) to equal 2.5. So now your equation is 5-2.5+1/2 which equals 3.
7 0
3 years ago
Help please due tonight <br><br>50 points + brainliest​
Leviafan [203]

Answer:

7. -37/36 or -1 1/36

8. -3/10

9. 1/24

10. -118/21 or -5 13/21

11. 97/12 or 8 1/12

12. 49/8 or 6 1/8

Step-by-step explanation:

To subtract fractions, they must have the same denominator. The common denominator will be the LCM (lowest common multiple) of the two denominators. Then, combine the fractions and simplify.

7. -\frac{1}{4}-\frac{7}{9}  Find a common denominator

=-\frac{1*9}{4*9}-\frac{7*4}{9*4}

=-\frac{9}{36}-\frac{28}{36}

=\frac{-9-28}{36}   Combine the fractions

=\frac{-37}{36}    Answer. Already in lowest terms.

=-1\frac{1}{36} Keep a negative number. 37 goes into 36 one time, leaving 1 remainder (becomes numerator)

8. \frac{3}{5}-\frac{9}{10} Find a common denominator

=\frac{3*2}{5*2}-\frac{9}{10}

=\frac{6}{10}-\frac{9}{10}

=\frac{6-9}{10} Combine the fractions

=\frac{-3}{10} Answer in simplest form.

9. \frac{5}{8}-\frac{7}{12} Find common denominator

=\frac{5*3}{8*3}-\frac{7*2}{12*2}

=\frac{15}{24}-\frac{14}{24}

=\frac{15-14}{24} Combine the fractions

=\frac{1}{24} Answer in simplest form

10. -1\frac{1}{3}-4\frac{2}{7} Translate to improper fraction

=-\frac{4}{3}-\frac{30}{7} Multiplied each whole number with base, added to numerator

=-\frac{28}{21}-\frac{90}{21} Found common denominator

=\frac{-28-90}{21} Combined fractions

=\frac{-118}{21} Answer in improper form

=-5\frac{13}{21} Answer as a mixed number

11. 5\frac{5}{6}-(-2\frac{1}{4}) Convert to improper fraction

\frac{35}{6}-(-\frac{9}{4}) Two minuses make a plus

=\frac{35}{6}+\frac{9}{4} Find common denominator

=\frac{35*2}{6*2}+\frac{9*3}{4*3}

=\frac{70}{12}+\frac{27}{12}

=\frac{70+27}{12} Combined fractions

=\frac{97}{12} Answer as improper fraction

=8\frac{1}{12} Answer as mixed fraction

12. 12\frac{1}{2}-6\frac{3}{8} Convert to improper fraction

\frac{25}{2}-\frac{51}{8}

\frac{25*4}{2*4}-\frac{51}{8} Find common denominator

\frac{100}{8}-\frac{51}{8}

\frac{100-51}{8} Combined fractions

\frac{49}{8} Answer as improper fraction

8\frac{1}{8} Answer as mixed number

5 0
3 years ago
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