3. Blackberry is also in the business of selling phones. The data for the profit that Blackberry makes on selling tablets is represented by the following equation with profit being P(b) and b being number of blackberry phones sold (both variables in millions):

P(b) = -x2 + 8x – 8

a. Use the quadratic formula to solve the equation. What do these points tell us about the graph?




b. Complete the following table. Based on the table, estimate the vertex for the function. Is the vertex a max. or a min. point?



Blackberry: Profit from Smart Phones Sold

Smart Phones sold (in millions) b Profit (in millions of dollars) P(b)
-1
0
2 4
3
4
5 7
6


c. Sketch a graph for Blackberry. Label the x and y axis (for b and P(b))

Answer:

she can give one half of the liter to 12 friends if u do the math but if she's including herself, 11 but she isn't therefore 12 friends

Answer:

the answer is 12

Answer: if the second angle is vertical to the first one, then they will both have the same degrees which is 131°

Step-by-step explanation:

Answer:

k= 70

Step-by-step explanation:

Answer:

Option (4)

Step-by-step explanation:

From the bar graph given in the picture,

Number of people who owned a Xbox 360 = 8

Similarly, number of people who owned Gameboy = 1

Therefore, difference in the number of people having Xbox 60 and Gameboy = 8 - 1

= 7

Option (4) is the correct option.

Answer:

-5

Step-by-step explanation:

At first,

f(-1) = 3 x (-1)² + 5 x (-1) -7

= 3 - 5 - 7

= -9

g(f(-1)) = g(-9)

= 2 x (-9) + 13

= -18 + 13

= -5

Answer:

1.77 ft.^2

Step-by-step explanation:

What we know: diameter of circle is 1.5

What we need: the radius to find the area of a circle

What we can do: Divide 1.5 by two to get the radius(since the diameter is twice the radius : radius x 2 = diameter)

Math -->  1.5 divide by 2 = .75

What we need to know: Formula of finding Area of Circle is  A=(pie)r^2

Insert what we know: A=(pie).75^2

Work out problem(do radius to the second power first)#1:  .75^2 =  .5625(unrounded)

Work out problem(multiply number by pie))#2: .5625 multiplied by (pie) = 1.7671458676442586966352369030947‬

Round Answer to nearest hundredth: 1.77 ft.

Note: I use the pie sign for this problem. So I used : 3.1415926535897932384626433832795‬

I used a scientific calculator for the calculations.

^2 is added after the unit to show Area.

To the second power  is multiplying the number by itself. Example: 4^2 = 16 = 4 x 4

Answer:

1/3

Step-by-step explanation:

Answer:

Step-by-step explanation: I need help now pls

Answer:

50

Step-by-step explanation:

\text{SOH-CAH-TOA}

SOH-CAH-TOA

\cos D = \frac{\text{adjacent}}{\text{hypotenuse}}=\frac{59}{91}

cosD=

hypotenuse

adjacent

​

=

91

59

​

\cos D = \frac{59}{91}

cosD=

91

59

​

D=\cos^{-1}(\frac{59}{91})

D=cos

−1

(

91

59

​

)

D=49.583\approx 50^{\circ}

D=49.583≈50

∘

Type into calculator and round to the nearest degree.

D

E

F

59

91

(adjacent to ∠D)

Answer:

Step-by-step explanation:

a+b=58 and 4a-2b=28 is the system of equations

solving the first for a, a=58-b, using this value for b in second equation is

4(58-b)-2b=28

232-4b-2b=28

232-6b=28

-6b=-204

b=34, and since a=58-b

a=58-34

a=24

So the two numbers are 24 and 34

Answer:

potential solutions- 1

extraneous solutions- 0

solution to equation- x=3

Step-by-step explanation:

Answer:

A. 5(1 + 3x)

Step-by-step explanation:

5(1 + 3x)

(5 × 1) + (5 × 3x)

5 + (5 × 3x)

5 + 15x

A works. Let's check the rest.

1(5 + 3x)

(1 × 5) + (1 × 3x)

5 + (1 × 3x)

5 + 3x

B does not work.

3(5 + х)

(3 × 5) + (3 × x)

15 + (3 × x)

15 + 3x

C doesn't work.

5(3x)

5 × 3x

15x

B, C, and D do not work.

Step-by-step explanation:

hope this will help you plz check and tell me

Answer:

So, the domain are:

[tex]x = 4,1,0,-1[/tex]

The range are:

[tex]y = 2,3,0,-1,-3[/tex]

Step-by-step explanation:

Given:

[tex]\{(4, 2), (1, 3), (0, 0), (-1, -1), (1, -3)\}[/tex]

Required

The domain and the range

In relation, we have:

[tex]\{(x_1, y_1), (x_2, y_2), ......, (x_n, y_n)\}[/tex]

Where the x values are the domain and the y values represent the range.

So, the domain are:

[tex]x = 4,1,0,-1[/tex]

The range are:

[tex]y = 2,3,0,-1,-3[/tex]

Answer:

276 cm²

Step-by-step explanation:

A=2(wl+hl+hw)

A=2(4x7+10x7+10x4)

A=2(28+70+40)

A=2(138)

A=276 cm²

Answer:

45837312

Step-by-step explanation:

I'm smart. (Sometimes)

Answer:45837312

Step-by-step explanation: I hope i heled you and yea. I think that's what i have to say. UvU 0w0

Answer:

B

Step-by-step explanation:

By inspection it can' be C or D since they are shorter than the 15 yard side.

Also B is just slightly big than 15, so it is mostly likely incorrect

I would guess A is the answer,      proven to be INCORRECT see below

the correct answer is B. 17 yards

check the answer using the pythagorean theorem

a² + b² = c²

a = 8

b = 15

c = √(64 + 225)

  = √289

 = 17   my guess was wrong!!!!

Answer:

The answer is B 200

Step-by-step explanation:

i just took the test so yah :)

Answer:

it should be D

Step-by-step explanation:

I hope this helps!

Answer:

you will have an 18% chance of rolling a 2.

Step-by-step explanation:

18/100 = 18

The probability of spinning an even number is 39/10

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

Here, we have,

to determine the probability of spinning an even number.

The missing bar chart is added as an attachment

The bar chart (see attachment) represents the graph that would be used to calculate the required probability

On the bar chart, we have the sample size of the even number

Even number = 18 + 21

Even number = 39

So, we have

P(Even) = Even/Total

By substitution. we have

P(Even) = 39/100

Hence, the probability is 39/100

Read more about probability at

brainly.com/question/251701

#SPJ2

Answer:

The n-th term of this sequence appears to be

3

n

−

1

,

n

≥

1

.

Step-by-step explanation:

These are powers of

3

ordered from

3

0

=

1

to

3

a

(for an integer

a

≥

1

). However, the first convenient value for

n

is

1

, not

0

(imagine saying the 0th term of a sequence). Because of that, since the first term is actually

3

0

, we need to start from the first term (

n

=

1

) being

3

1

−

1

. The next is

3

2

−

1

,

3

3

−

1

...

3

n

−

1

.

Answer:

The student forgot about the double angle identity.

Step-by-step explanation:

sin2x/cosx=2

This is the double angle identity

sin2x=2sin(x)cos(x)

(2sinxcosx)/cosx=2

2sinx=2

sinx=1

x=sin^-1(1)

x=90 degrees OR pi/4

This was my answer for the test and got full points :)

Answer:

if V=½X2h then

V=½(11)(2×6)

V=(11/2)(12)

V=66

Answer:

32° and 116°

Step-by-step explanation:

An isosceles triangle has two equal angles and the other angle is found by subtracting the sum of the two equivalent angles from 180°.

Since, one of the angles are given in the problem, one of the angles is 32°.

To find the other angle, we subtract the two angles from 180°.

180° - 32° - 32°

116°

The other two angles are: 32° and 116°

Answer:

TRUE!

Step-by-step explanation:

Answer:

The answer is true

Step-by-step explanation:

Answer:

8/17

Step-by-step explanation:

Answer:

the answer is c

Step-by-step explanation:

Trust me

Answer:

B=25

Step-by-step explanation: