3 years ago

Is the expression x^2 + 2(x + 3) written in standard form?

1 answer:

3 0

Answer:

Step-by-step explanation:

the standard form is x^2 +2x+6

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ozzi

Using the distance formula $d=\sqrt{(x_2-x_1) +(y_2-y_1) }$ Then we assign the points letter for simplicity

$A= (-5.1),B=(-1,3),C=(2,3),D=(2,-2),E=(-3,-1)$ . The distance formula gives us the magnitude between two points hence,

$AB=\sqrt{(-5-(-1))^2+ (-1-3)^2}=\sqrt{16+16}= 5.65$

$BC=\sqrt{(-1-2)^2+(3-3)^2}= \sqrt{9}=3$

$CD=\sqrt{(2-2)^2+((3-(-2))^2} =\sqrt{25}=5$

$DE=\sqrt{(2-(-3))^2+(-2-(-1))^2} =\sqrt{26+1} =5.099$

$AE=\sqrt{(-3-(-5))^2+(-1-1)^2}= \sqrt{4+4} =\sqrt{8}=2.82$

$Perimeter= AB+BC+CD+DE+AE\\Perimeter=5.65+3+5+5.099+2.82=21.57 units$

5 0

3 years ago

fiasKO [112]

Cos t (sec t - cos t)
= cos t (1 / cos t - cos t)
= 1 - cos^2 t
= sin^2 t (using the identity sin^2 t + cos^2 t = 1 )

4 0

3 years ago

DedPeter [7]

Answer:

BC×AD=K

CKD= 180-32-79= 2x +180- 5x

-> x = (-32-79) : (-3) =37

4 0

4 years ago

Solnce55 [7]

The answer is A. 38.49

7 0

4 years ago

Andrews [41]

X^2+35=180?
Subtract 35 on each side

x^2=145
Take the square root

x= -sqrt(145)
+sqrt 145...

I hope this helps!!

4 0

3 years ago