Round off 5 427 129 to nearest hundred

Any help would be appreciated(brainly for best answer)

Simora [160]

Answer:

b.

m<1 = 80 degrees because of the alternate angles rule.

m<2 = 100 degrees because angles on a straight line equals 180 degrees.

c.

m<1=75 degrees because again of the alternate angle rule.

m<2= 60 because that angle is equal to diagonally upper angle (I'll call it Z) and that angle would equal 60 because 180-120=60

Step-by-step explanation:

You really didn't need to do such complex math. If you want me to explain it more in detail, please let me know.

3 0

3 years ago

Find the quotient (line over 42 is repeating)

strojnjashka [21]

The correct answer is: [C]: " $\frac{21}{11}$ " .
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Explanation:
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Let us begin by converting the:
"0.42 (with the "repeating bar on the digits, "42") " ;

into a fraction, as follows:
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Let x = 0.42424242424242424242424242424242....

100x = 42.42424242424242424242424242424242....
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100x = 42.42424242424242424242424242424242....
– x = 0.42424242424242424242424242424242...
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99x = 42.000000000000000000000000000000.... ;

→ 99x = 42 ;

Divide each side of the equation by " 99 " ;
to isolate "x" on one side of the equation; & to solve for "x" ;
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→ 99x / 99 = 42/99 = (42 ÷ 3) / (99 ÷ 3) = 14/ 33;

→ x = " $\frac{14}{33}$ " .

So; "0.42 (with a repeating bar over the digits, "42" ;

is equal to: " $\frac{14}{33}$ "
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So, rewrite the question/problem being asked:
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"Find the quotient:
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$\frac{14}{33}$ ÷ $\frac{2}{9}$ ;

= $\frac{14}{33}$ * $\frac{9}{2}$ ;

Note: The "14" cancels to a "7" ; and the "2" cancels to a "1" ;
→ {since: " 14 ÷ 2 = 7 " ; and since: " 2 ÷ 2 = 1 "} ;

Note : The "33" cancels to an "11" ; and the "9" cancels to a "3" ;
 → {since: " 33 ÷ 3 = 11 " ; and since: " 9 ÷ 3 = 3 "} ;

And we can rewrite the problem as:
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" $\frac{7}{11}$ * $\frac{3}{1}$ " ;

= $\frac{(7*3)}{(11*1}$ = $\frac{21}{11}$ ;

→ which is: Answer choice: [C]: " $\frac{21}{11}$ " .
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3 0

4 years ago

Given 2x^2=-8, x is A.-2 B. 2 C. 2i or -2i D. 4i or -4i

Lera25 [3.4K]

Answer:

2i or -2i

Step-by-step explanation:

2x² = -8 First, clear x.

x² = -8/2 Solve

x² = -4 Now, eliminate the square of x by solving the square root of -4.

x = √-4

x = 2i or -2i Is an imaginary number.

4 0

3 years ago

Read 2 more answers

Julie had $500. She spent 20% of it on clothes and then 25% of the

Anuta_ua [19.1K]

Answer:

$500 X 0.20 = $100

500-100=$400 Remaining

400 X 0.25 = $100

400-100=$300

he have spend $200

4 0

3 years ago

3(2x-7=5-(1-x) pls help me

vekshin1

Answer:

3 • (2x - 7) - (x + 4) = 0

then do 3.1 Pull out like factors :

5x - 25 = 5 • (x - 5)

5 • (x - 5) = 0

4.2 Solve : x-5 = 0

Add 5 to both sides of the equation :

x = 5

Step-by-step explanation:

7 0

3 years ago