3 years ago

Write a quadratic function that models the graph in vertex form.

Mathematics

1 answer:

mylen [45]3 years ago

4 0

Answer:

D. y= -3/4 (x+4)^2 +3

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A line has the equation y=x+4. write down the coordinates of where the line intersects the y-axis

loris [4]

Answer:(0,4)

Step-by-step explanation:

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2 years ago

a rectangle pool is 9 ft wide. the pool has an area of 117 square feet. what is the perimeter of the pool?

Softa [21]

9*13=117
(9*2)+(13*2)=44
44 feet

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3 years ago

Read 2 more answers

Sin α = 21/29, α lies in quadrant II, and cos β = 15/17, β lies in quadrant I Find sin (α - β).

Sever21 [200]

$\sin(\alpha-\beta)=\sin\alpha\cos\beta-\cos\alpha\sin\beta$

$\sin\alpha=\dfrac{21}{29}\implies \cos^2\alpha=1-\sin^2\alpha=\dfrac{400}{841}$

Since $\alpha$ lies in quadrant II, we have $\cos\alpha$ , so

$\cos\alpha=-\sqrt{\dfrac{400}{841}}=-\dfrac{20}{29}$

$\cos\beta=\dfrac{15}{17}\implies\sin^2\beta=1-\cos^2\beta=\dfrac{64}{289}$

$\beta$ lies in quadrant I, so $\sin\beta>0$ and

$\sin\beta=\sqrt{\dfrac{64}{289}}=\dfrac8{17}$

So

$\sin(\alpha-\beta)=\dfrac{21}{29}\dfrac{15}{17}-\left(-\dfrac{20}{29}\right)\dfrac8{17}=\dfrac{475}{493}$

8 0

3 years ago

H(t)=-10x+6 h(?)=-44

Andreyy89

Answer: h(<u>5</u>)=-44

Step-by-step explanation:

Given

h(t)=-10x+6

h(?)=-44

Substitute the [-44] value to the first equation

-44=-10x+6

Subtract 6 on both sides

-44-6=-10x+6-6

-50=-10x

Divide -10 on both sides

-50/-10=-10x/-10

x=5

Hope this helps!! :)

Please let me know if you have any questions

5 0

3 years ago

Explain how to find 40 multiply by 50 using mental math.

MissTica

Take 4 and multiply it by 5 (which you should be able to do in your head) and then add the two zeros back in so:
4•5= 20
20+0+0=
2000

6 0

3 years ago