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docker41 [41]
3 years ago
12

SOLVE EQUATION BY TAKING SQUARE ROOTS. -100+81a^2=0

Mathematics
2 answers:
belka [17]3 years ago
8 0

GOOD MORNING AND CONGRATULATIONS ON YOU GRADUATING :D

IceJOKER [234]3 years ago
7 0

Answer:

a = ±10/9

Step-by-step explanation:

-100+81a^2=0\\81a^2=100\\a^2=\frac{100}{81}\\\sqrt{a^2}=\sqrt{\frac{100}{81} }\\a=10/9\\a=-10/9

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F(x)=9x+5, find f^-1(x).
lidiya [134]

Answer:

interchange the role of x and y

x=9y+5

x-5=9y

<u>x-5</u><u> </u>=y

9

so,f^-1(x)= <u>x-5</u>

<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>9

hope it helps.

<h3>stay safe healthy and happy.</h3>
4 0
3 years ago
Which of the following statements says that a number is between -5 and 5?
Alex787 [66]

Answer:

will it work it you divided?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A cube has a volume of 74 088 cm cubed. What is the surface area of the cube
Naddika [18.5K]

Answer:

10 cm²

Step-by-step explanation:

74 088 is the cubed of one side. So you would do \sqrt[3]{74088} which is 42. So one side of the cube is 42. To find the surface area, you would do 6(42x42) which would give you 10584. Remember to put cm²

3 0
3 years ago
Answer it step by step​
Musya8 [376]

Answer:

127/20

Step-by-step explanation:

4×(20/20) + (3/4)×(5/5) + (8/5)×(4/4)

= (80/20) + (15/20) + (32/20)

= 127/20

Got it??

3 0
3 years ago
If you help me I'll mark you branliest and give five star rating​
Olenka [21]

Answer:

See explanation for answer, hope it helps

Step-by-step explanation:

Toss; 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Total number of heads so far; 1, 1, 1, 1, 2, 3, 4, 4, 4, 5

Relative Frequency of heads so far;

\frac{1}{1} = 1.0 = 100%

\frac{1}{2} = 0.5 = 50%

\frac{1}{3} = 0.33 = 33%

\frac{1}{4} = 0.25 = 25%

\frac{2}{5} = 0.4 = 40%

\frac{3}{6} = 0.5 = 50%

\frac{4}{7} = 0.57 = 57%

\frac{4}{8} = 0.5 = 50%

\frac{4}{9} = 0.44 = 44%

\frac{5}{10} = 0.5 = 50%

Total number of tails so far; 0 1, 2, 3, 3, 3, 3, 4, 5, 5

Relative Frequency;

\frac{0}{1} = 0 = 0%

\frac{1}{2} = 0.5 = 50%

\frac{2}{3} = 0.66 = 66%

\frac{3}{4} = 0.75 = 75%

\frac{3}{5} = 0.6 = 60%

\frac{3}{6} = 0.5 = 50%

\frac{3}{7} = 0.42 = 42%

\frac{4}{8} = 0.5 = 50%

\frac{5}{9} = 0.55 = 55%

\frac{5}{10} = 0.5 = 50%

8 0
2 years ago
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