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GrogVix [38]
2 years ago
6

What is the minimum y value of the following quadratic function? f(x) = x2 - 6x + 8

Mathematics
1 answer:
tia_tia [17]2 years ago
8 0

Answer:

14

Step-by-step explanation:

k

=

c

−

b

2

4

a

We know that

a

=

1

,

b

=

−

8

and

c

=

2

, so let's substitute:

k

=

2

−

(

−

8

)

2

4

(

1

)

=

2

−

64

4

=

2

−

16

=

−

14

.

So, we have

min

=

−

14

. Let's check:

graph{(x^2 - 8x + 2 - y)(-14 -y)=0 [-11.82, 20.22, -15.38, 0.64]}

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Andrews [41]
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2 years ago
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Alex787 [66]

Answer:

9

Step-by-step explanation:

pemdas

9-3÷1/3+1

division

3 and 1/3 becomes 1

we have 9-1+1

which simplifies to 9

4 0
2 years ago
In a regular 5​-gon, what is the measure of each interior​ angle?
Mamont248 [21]
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5 0
3 years ago
HELPPP PLEASE 20 POINTS<br> What is the surface area of this design?
erma4kov [3.2K]

Option D:

The surface area of the design is 197 in².

Solution:

Area of the front face = \frac{1}{2}\times \text{sum of parallel sides} \times \text{height}

                                      =\frac{1}{2}\times (5 + 9)\times 5

                                      = 35 in²

Area of back face = \frac{1}{2}\times \text{sum of parallel sides} \times \text{height}

                                      =\frac{1}{2}\times (5 + 9)\times 5

                                      = 35 in²

Area of left side face = base × height

                                     = 5 × 5

                                     = 25 in²

Area of top face = base × height

                            = 5 × 5

                            = 25 in²

Area of bottom face = base × height

                            = 9 × 5

                            = 45 in²

Area of right side face = base × height

                            = 5 × 6.4

                            = 32 in²

Surface area of the design = 35 + 35 + 25 + 25 + 45 + 32

                                             = 197 in²

The surface area of the design is 197 in².

Option D is the correct answer.

8 0
2 years ago
Clara wants to cover the top of your jewelry box the top of the box is a rectangle with a length of 9.4 cm and a width of 8.3 cm
abruzzese [7]

Answer:

Step-by-step explanation:

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is it that you don't have a calculator or that you didn't know to multiply the two numbers?   ( most computers have built in calculators )  :/

5 0
2 years ago
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