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maxonik [38]
3 years ago
11

Helllllllllllllp plzz

Mathematics
1 answer:
Sati [7]3 years ago
3 0
The first one is 1,3,31,62 and the second answer is 1,5,8
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(Algebra II) Standard Form of a Quadratic Function - I'm having trouble with two questions on this quiz? Please don't just give
anastassius [24]
1.
the x value of the vertex in form
ax^2+bx+c=y
is
-b/2a
so

-2x^2+8x-18
x value of vertex is
-8/(2*-2)=-8/-4=2

plug it in to get y value
-2(2)^2+8(2)-18
-2(4)+16-18
-8-2
-10

vertex is at (2,-10)
or you could complete the square to get into y=a(x-h)^2+k, where the vertex is (h,k)
so as follows
y=(-2x^2+8x)-18
y=-2(x^2-4x)-18
y=-2(x^2-4x+4-4)-18
y=-2((x-2)^2-4)-18
y=-2(x-2)^2+8-18
y=-2(x-2)^2-10
vertex is (2,-10)






5.
vertex is the time where the speed is the highest
at about t=10, the speed is at its max
6 0
3 years ago
Read 2 more answers
Which answer describes the simpler problems that could be used to solve this story problem?
puteri [66]
<span>B. Calculate how many pieces of fruit go into each bag. Multiply this by the number of students going on the trip. </span>
4 0
3 years ago
For this right triangle shown, what is the sine of angle C?
choli [55]

Answer:

8.212°

Step-by-step explanation:

Hypotenuse^2=base^2+perp^2

(8)^2=(7)^2+(perp)^2

64=49+(perp)^2

64/49=perp^2

1.306=perp^2

Now taking sq root on both sides

Perp=√1.306

Perp=1.142

Sin C=opposite/hypotenuse

Sin C=1.142/8

Sin C=0.14285

C=Sin^-1 0.14285

C=8.212°

5 0
3 years ago
Select the best answer that defines the circumference of a circle.
Zigmanuir [339]

Answer:

 The circumference is the distance around the circle, similar to the perimeter of a polygon.

Step-by-step explanation:

The term "circumference" is often used to refer to the once-around length of any circular or roughly-circular object. One can refer to the circumference of an ellipse or of one's head, for example.

8 0
3 years ago
Two angles in a triangle equal 20 and 130. What is the measure of the third angle?
mezya [45]
C because they all have to add up to 180 and 20+130=150 and 180-150=30
4 0
3 years ago
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