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Aleksandr-060686 [28]
3 years ago
15

Round 86.74 to the nearest whole

Mathematics
1 answer:
zlopas [31]3 years ago
7 0

Answer:

87

Step-by-step explanation:

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HELP FAST PLS!!!!!!!!!(will give 50 points to who answers correctly oh and dont answer fake answers i typed soo hard to do this)
leva [86]

Answer:

Step-by-step explanation:

1.A

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How do y’all find the equation in standard form plz help me guys
Katen [24]

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it is a funtion

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all i can say is that it is a function

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3 years ago
6+(-3)=<br>answer question plz​
34kurt

Answer:

-3

Step-by-step explanation: Because it is just like saying 6-3

6 0
3 years ago
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In each triangle below, name the type of line segment that CD is.
bulgar [2K]
There is no picture?
4 0
2 years ago
What are the two missing sides of the triangle ??
igor_vitrenko [27]
Remark
It's a right triangle so the Pythagorean Theorem applies. All you have to do is put the right things in the right places of the formula.

Givens
a = x
b = x + 4
c = 20

Formula and Substitution.
a^2 + b^2 = c^2
x^2 + (x + 4)^2 = 20^2

Solution
x^2 + x^2 + 8x + 16 = 20 Collect the like terms on the left.
2x^2 + 8x + 16 = 20  Subtract 20 from both sides.
2x^2 + 8x + 16 - 20 = 0  
2x^2 + 8x - 4 = 0         Divide through by 2
x^2 + 4x - 2 = 0

Use the quadratic formula
a = 1
b = 4
c = - 2

\text{x = }\dfrac{ -b \pm \sqrt{b^{2} - 4ac } }{2a} &#10; 
\text{x = }\dfrac{ -4 \pm \sqrt{4^{2} + 4(1)(2) } }{2} &#10;

From which x = (-4 +/- sqrt(24) ) / 2
x1 = (- 4 +/- sqrt(4*6) ) / 2
x1 = (- 4 +/- 2 sqrt(6) ) / 2
x1 = -2 + sqrt(6)
x2 = -2 - sqrt(6)  This is an extraneous root. No line can be minus.

x1 = + 0.4495
x2 = x + 4 = 4.4495
6 0
3 years ago
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