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Simora [160]
4 years ago
13

Consider the quadratic function:

Mathematics
2 answers:
adoni [48]4 years ago
5 0

Answer:

Step-by-step explanation:

hello :

f(x) = x² – 8x – 9 = (x²-8x+16)-16-9  

f(x) = (x-4)²-25  ..... vertex form

the vertex is : (4 ; -25)

Andreyy894 years ago
3 0

f(x) = x^2 - 8x -9\\\\x_0=\frac{8}{2} =4\\\\y_0=4^2-8*4-9=-25\\\\

Vertex: (4;-25)

P.S. Hello from Russia

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Please Help! In dire need~!
timama [110]

Answer: The solution is 3\frac{1}{3}

Step-by-step explanation:

since we have given that

\frac{2}{3}\div \frac{1}{5}

we need to solve it using area models:

As we know that "In fractions, division is changed into multiplication by reciprocating the next term to make it possible to solve":

So, It turns into model of area "Area of rectangle "

Area=Length\times Breadth\\\\Area=\frac{2}{3}\times \frac{5}{1}\\\\Area=\frac{10}{3}=3\frac{1}{3}

Now, verifying by using numerical operations only.

\frac{\frac{2}{3}}{\frac{1}{5}}\\\\=\frac{2\times 5}{3\times 1}\\\\=\frac{10}{3}\\\\=3\frac{1}{3}

Hence, verified.

7 0
4 years ago
3 x 1/6 in simplest form
Travka [436]
Im not sure but i thing its 0.5 or 1/2
cause if you take (3/1)*(1/6) that's what you will get
also you had to make 3 as a fraction so you would put the denominator as 1 so if you divide 1 and 3 you would still get the whole number as 3
6 0
4 years ago
Read 2 more answers
Kyle purchased a 20 lb. pumpkin for $5.95. Elizabeth purchased a 15 lb. pumpkin for $5.00. Elijah purchased an 8 oz. pumpkin for
Ivan

Kyle purchased a 20 lb. pumpkin for $5.95.

Cost per lb of pumpkin for Kyle = 5.95/ 12 = $0.496.

Elizabeth purchased a 15 lb. pumpkin for $5.00.

Cost per lb of pumpkin for Elizabeth = 5.00/15 = $0.333.

Elijah purchased an 8 oz. pumpkin for $ 0.16.

16 oz = 1 lb

8 oz = 0.5 lb.

Cost per lb of pumpkin for Elijah = 0.16/ 0.5 = $ 0.32.

<h3>Cost per lb of pumpkin for Elijah is $ 0.32 is the lowest price per lb of pumpkin .</h3><h3>Cost per lb of pumpkin for Kyle is $ $0.496 is the highest price per lb of pumpkin .</h3><h3>Therefore, Elijah got the best deal and Kyle got the worst deal.</h3>

3 0
3 years ago
How do i solve for this?
Firdavs [7]

9514 1404 393

Answer:

  97.42 square units

Step-by-step explanation:

The area of a sector is given by ...

  A = (1/2)r²θ

where r is the radius (12.2) and θ is the central angle in radians. Here, you're given the central angle as 75°, so you need to convert that to radians.

  75° = (75°)×(π/180°) radians = (5/12)π radians

Then the area is ...

  A = (1/2)(12.2²)(5π/12) = 744.2π/24 ≈ 97.42 . . . square units

__

Equivalently, you can find the area of the circle in the usual way:

  A = πr² = π(12.2²) ≈ 467.59465

Then, multiply by the fraction of the circle that is shaded (75°/360°)

  sector area = (467.59465)(75/360) = 94.42 . . . square units

5 0
3 years ago
I’m so confused. I think it’s aas but idk
xz_007 [3.2K]
It would be asa they have 2 congruent sides, 2 angles, and they both share QS and by the reflexive prop QS=QS so it would be asa
5 0
4 years ago
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