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sveticcg [70]
3 years ago
6

Which of the following statements is true?

Mathematics
1 answer:
lutik1710 [3]3 years ago
6 0

Answer:

Option (3)

Step-by-step explanation:

Perpendicular lines: Perpendicular lines are the lines that intersect each other at right angles

Intersecting lines: Intersecting lines are the lines that intersect each other at a point to form angles but vertically opposite angles are equal

Hence , from above conclusion we can write Perpendicular lines must cross to form ninety degree angles, but intersecting lines cross to form angles of varying measures.

Hence , Option (3) is correct answer

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There was 62.23% change in radius as the ion formed.

Step-by-step explanation:

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Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
3 years ago
Read 2 more answers
Sasha runs 8 miles on Thursday, then runs 8 more miles on Friday, she ran 1/2 mile on Saturday. hHOW MANY MILES DID SHE RUN? PLE
Over [174]

Answer:

16 1/2 miles

Step-by-step explanation:

3 0
3 years ago
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Of the 14 professional sports team in Tennessee, 9 are baseball teams. About what percent of the professional sports teams in Te
Westkost [7]

Answer:

64.3%

Step-by-step explanation:

Number of professional sports team in Tennessee is equal to 14

9 are baseball teams

Percentage of baseball teams

= no. of baseball teams/ no. of sports team x 100%

That’s 9/14 x 100%

0.643 x 100%

64.3%

The percentage of baseball team in Tennessee professional sports team is 64.3%

6 0
4 years ago
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