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Wittaler [7]
3 years ago
15

20 points!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Firdavs [7]3 years ago
5 0

Answer: 320 FT^3

is the ans

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URGENT! What is the equation of this graph? It is a cosine graph whose equation will fit into terms of y=acos(b(x-c))+d
IgorC [24]

Answer:

y=-5cos(pi/8(x+2))-21

Step-by-step explanation:

y=acos(b(x-c))+d

Let's find the max and then the min first. We are aiming to find the amplitude, a, which is the half the distance from the max to the min.

Max is y=-16

Min is y=-26

a=(-16--26)/2=-8--13=5

a could also tell us if y=cos(x) has been reflected about the x-axis if it is -5, which it looks like it has considering cos(0)=1 not -1.

I'm looking at the point (-2,-26) which is the lowest point of our curve and comparing it to our high point of (0,1) on y=cos(x).

So far we have, y=-5cos(b(x-c))+d.

Let's look at d, vertical shift. The average of our max and min is (-26+-16)/2=-13-8=-21.

So our vertical shift is d=-21.

So now equation is y=-5cos(b(x-c))+-21.

Now since we are using (-2,-26) as our (0,1) point on y=cos(x) then c=-2.

So now equation is y=-5cos(b(x--2))+-21

Now we are going to plug in a point haven't mentioned to find b. So looking at graph I will use (6,-16).

-16=-5cos(b(6--2))+-21

Add 21 on both sides:

5=-5cos(b(6--2))

Divide both sides by -5:

-1=cos(b(6--2))

Simplify inside:

-1=cos(b8)

Multiplication is commutative:

-1=cos(8b)

8b=pi * cos(pi)=-1

b=pi/8

The equation is

y=-5cos(pi/8(x--2))+-21

Simplify:

y=-5cos(pi/8(x+2))-21

7 0
2 years ago
Ed buys a box of eggs costing £2.10, two packs of bacon for £2.90 each and two tins of baked beans. He pays with a £10 note and
Anastaziya [24]

Answer:

£0.75

Step-by-step explanation:

Add 2.10

Do 2.90 * 2

add 2.10 and 5.80

subtract the sum from 9.4

divide by 2

6 0
2 years ago
an aquarum has 29 large fish tanks and 1,423 fish need to go into it if the owner wants to split them evenly what is the greates
Shtirlitz [24]
If you divide the number 1423 by 29, you answer will be 49 fish per tank. Hoped this helped
3 0
3 years ago
Drag the symbol to complete the solution to this inequalities​
dezoksy [38]

Answer:

x ≤ 13.2.

Step-by-step explanation:

6  ≥  x/2.2

Multiply both sides by 2.2:

6 * 2.2 ≥ x

x ≤ 13.2.

3 0
3 years ago
Read 2 more answers
Which series of transformations will not map figure H onto itself?
chubhunter [2.5K]

Answer:

(x + 0, y − 2), reflection over y = 1

Step-by-step explanation:

H will be shifted down 2 units and then reflected over y = 1, which maps H into itself

3 0
3 years ago
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