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4 years ago

10

When I have a parabola, how do I find the increasing and decreasing. My friend told me you look at the x values, but I thought i

t made more sense with the y values.

1 answer:

hichkok12 [17]4 years ago

6 0

You look at the vertex.and depending on what it looks like

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Sophia uses 18 beads to make a necklace. Three sixths of the beads are purple. How many beads are purple?

joja [24]

Answer:

9 beads are purple

Step-by-step explanation:

we know that

To find out how many beads are purple, multiply the total beads by the fraction of the beads that are purple

so

$18(\frac{3}{6})=9\ beads$

therefore

9 beads are purple

Another way to solve the problem is convert the fraction in percentage

we have

$\frac{3}{6}=\frac{1}{2}=0.50*100=50\%$

so

If the total are 18 beads

50% is 9 beads

therefore

9 beads are purple

8 0

4 years ago

Find the 96th term of the arithmetic sequence 1, -12, -25, ...

goldenfox [79]

Answer:

The 96th term of the arithmetic sequence is -1234.

Step-by-step explanation:

first term (a)=1

second term (t2)=-12

common difference (d)= t2-a

d=-12-1

d=-13

96th term (t96)=?

We know that,

t96=a+(n-1)d

t96=1+(96-1)(-13)

t96=1+95(-13)

t96=1-1235

t96=-1234

6 0

3 years ago

If quadrilateral ABCD rotates 90° counterclockwise about the origin, what are the coordinates of A′ in quadrilateral A′B′C′D′ ?

Vesna [10]

Answer:

Option B is correct.

The coordinate of A' is (-2 , -1)

Explanation:

The coordinates of ABCD are A = (-1,2) , B(1,1) , C =(1,-1) and D(-2,-2).

Rotation means moving the shape around a fixed point clockwise or anticlockwise, and by a certain number of degrees.

Rule for 90° counterclockwise rotation about the origin: $(x,y) \rightarrow (-y,x)$

or we can say that switch x and y in the coordinates and make y value opposite.

Then, the coordinate of A' :

$A(-1,2) \rightarrow A'(-2 ,-1)$

Therefore, the coordinate of A' in the quadrilateral A'B'C'D' is, (-2 ,-1)

6 0

4 years ago

Read 2 more answers

With a tail wind, a small aircraft can fly 1200

Irina-Kira [14]

Answer:

total distance= 12000+12000=24000

total time = 5+6=11

average speed of plane= 24000/11

3 0

3 years ago

Kyle earns a fixed weekly salary of $200 plus a 10% commission on his sales that week. The total amount of Kyle's paycheck (y do

Arlecino [84]

Answer:

D. y= 200+ 0.1x

Step-by-step explanation:

Given data

Fixed Salary= $200

Commission= 10%

weekly sales = x

Hence the expression for the total amount he earns is given as

y= 200+ 0.1x

3 0

3 years ago