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bogdanovich [222]
3 years ago
15

I need help with number 11

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
6 0

Answer:

-b/2a is the equation to find the x coordinate of the vertex point and it's y, when x is plugged into the quadratic equation.

Step-by-step explanation:

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1.Define phase shift. Could every sine function be expressed as a phase shifted cosine function? Explain.
Ann [662]
A phase shift is defined as the a<span>mount of x by which sinusoid is shifted to the left or right.
 
And yes, </span><span>every sine function be expressed as a phase shifted cosine function:
</span>
sin(t)=cos(90-t)

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
What is y=8/3x-68/3 in standard form?
lawyer [7]

Answer:

The standard form of this equation is -8x + 3y = -68

Step-by-step explanation:

In order to find this, first solve for the constant.

y = 8/3x - 68/3

-8/3x + y = -68/3

Now we multiply by 3 to get them all equal to integers.

-8x + 3y = -68

8 0
3 years ago
Here is a garden and a pond.
Anna11 [10]

Answer:

<h2>Kayla needs 8 boxes of grass seed to cover the whole garden without including the pond.</h2>

Step-by-step explanation:

You can observe a representation of this problem in the image attached.

Notice that the grass seed is gonna be put only in the green zone, out of the pond. So, we need to find each area and subtract them.

A_{garden}= 14 \times 9 =126 \ m^{2}  \\A_{pond}=2.4 \times 3.8 = 9.12 \ m^{2}

The difference is

A_{seed}=126 - 9.12 =  116.88 \ m^{2}

Now, according to the problem, one box of grass seed covers 15 meters of the garden, let's divide this number with the seed area.

n=\frac{116.88}{15} \approx 7.792

Therefore, Kayla needs 8 boxes of grass seed to cover the whole garden without including the pond.

8 0
3 years ago
110 mi/h is equal to mi/day
s2008m [1.1K]

Answer:

2640 miles/day

Step-by-step explanation:

There are 24 hours in a day, so 110*24 = 2640.

3 0
3 years ago
A little girl throws her jackstone ball horizontally out of the window with a velocity of 30 m/s. if the window is 3 m above the
Colt1911 [192]
Distance (d) is 23.46 meters
Workup in the photo below.
Good luck.

6 0
3 years ago
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