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2 years ago

Rewrite the equation in vertex form. Name the vertex and y-intercept. y=3/5x^2+30x+382

Mathematics

2 answers:

professor190 [17]2 years ago

8 0

Answer:

answers for completing squares

Step-by-step explanation:

1)d:-5/3,5/3

2)d:12.7

3)c:-1,-11

4)d:3/2+-sqrt69/6

5)a:y=3/5(x+5)2+21/5 vertex: (-5,21/5) y intercept (0,382)

Serga [27]2 years ago

7 0

<span>(y-7) = 3/5 (x+25)^2 so the y intercept is -7 and the vertex is 35

</span>

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Suppose a triangle has 2 sides of length 3 and 4 and that the angle between these two sides is 60 degrees. what is the length of

shusha [124]

Answer:

$\boxed{b.\:\:\:\sqrt{13}}$

Step-by-step explanation:

Let the third side of the triangle be $h\: units$ .

We can apply the cosine rule to find $h$ .

$h^2=3^2+4^2-2(3)(4)\cos(60\degree)$

We evaluate to obtain;

$\Rightarrow h^2=9+16-24(\frac{1}{2})$

$\Rightarrow h^2=25-12$

$\Rightarrow h^2=13$

We take the positive square root of both sides to obtain;

$\Rightarrow h=\sqrt{13}$

The correct answer is B.

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2 years ago

Mr. Wallace took 600 mg of medicine. This was<br> 75% of the full dose. What is the full dose?

Soloha48 [4]

Answer:800

Step-by-step explanation:

75% = 0.75

600/0.75 = x/1

Cross multiply:

0.75x = 600

Divide 0.75 to both sides:

x = 800

So the full does is 800mg.

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2 years ago

The product of a number and 4 increased by 8 is -36

LekaFEV [45]

X4 + 8 = -36
x4 = -44
x = -11

(-11)4 + 8 = -36
-44 + 8 = -36
-36 = -36

4 0

3 years ago

Complete the recursive formula of the arithmetic sequence, 9, -1, -11, -21

nikdorinn [45]

Answer:

d(1)= 9

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7 0

2 years ago

Determine the missing angle

mamaluj [8]

Answer:

x=142

Step-by-step explanation:

so x and 142 equal eachother because they are alternate exterior angles!

set up the equation so we can solve for x

x=142

8 0

2 years ago

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