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Kipish [7]
3 years ago
10

What is the zero for 2x2-7=4

Mathematics
2 answers:
rosijanka [135]3 years ago
6 0
2x^2-7=4
subtract 4 from both sdies
2x^2-11=0
therefor
2x^2=11
divide by 2
x^2=5.5
square root both sdies
x=-2.345 or 2.345
mariarad [96]3 years ago
3 0
2x² - 7 = 4
<u>      +7  +7</u>
      <u>2x²</u> = <u>11</u>
        2      2
        x² = 5 1/2
         x = √5 1/2
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Which of the following is not involved in constructing a circle inscribed in a triangle?
Angelina_Jolie [31]
Constructing an a circle inscribed in a triangle involves these steps:

i) Draw 2 (or 3) of the angle bisectors. Their point of intersection is the center of the inscribed circle, or the incenter. Let's denote this point by O

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iii) Draw a circle with center the incenter, and radius the distance  OT.


Answer: B) Only perpendicular bisectors are not involved.

6 0
4 years ago
2x - 3y = 45 and x + y = 10 what is the x - value of the solution of the system
abruzzese [7]

Answer:

x=15

Step-by-step explanation:

This is a simultaneous equation

2x-3y=45 ------------------------------ equation i

x+y=10    -------------------------------equation ii

from equation ii

x+y=10

make x the subject of the matter

we have,

x=10-y

in equation i

substitute x for 10-y

2x-3y=45----------------------i

since x=10-y

we have,

2(10-y) - 3y=45

20-2y=3y=45

collect like terms

-2y-3y=45-20

-5y=25

divide both sides by -5

we have y=-5

substitute y for-5 in equation i

x+y=10

x+-5=10

collect like terms

x=10+5

x=15

therefore

x=15

8 0
3 years ago
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How do I find the complementary angle of 69 degrees?
kari74 [83]
21 would be ur answer 

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A discounted concert ticket costs $14.50 less than the original price p. You pay $53 for a discounted ticket. Write an equation
Romashka [77]

Answer:

answer ; https://socratic.org/questions/a-discounted-concert-ticket-costs-14-50-less-than-the-original-price-p-you-pay-5#585652

Step-by-step explanation:

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