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inna [77]
3 years ago
12

Write y = 2x^2 + 8x + 3 in vertex form.

Mathematics
1 answer:
krek1111 [17]3 years ago
3 0

Answer:

  y = 2(x + 2)^2 – 5

Step-by-step explanation:

When y = ax^2 +bx +c is written in vertex form, it becomes ...

  y = a(x +b/(2a))^2 +(c -b^2/(4a))

The constant term in the squared binomial is b/(2a) = 8/(2(2)) = +2. Only one answer choice matches:

  y = 2(x +2)^2 -5

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Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only) (6 points)
wolverine [178]

Answer:

35.68°

Step-by-step explanation:

In the picture attached, the triangle is shown.

From sine definition:

sin(y) = opposite/hypotenuse

The leg measuring 7 units is opposite to angle y, and the hypotenuse measures 12 units, therefore:

sin(y) = 7/12

y = arcsin(7/12)

y = 35.68°

4 0
3 years ago
Help answer pleaseeeeeee
12345 [234]

Answer:

Your answer is C.

Step-by-step explanation:

I answered it on paper. When it comes to explaining I have to be person to person. But I hope this helps. :)

5 0
3 years ago
An artist designed a badge for a school club. Figure ABCD on the coordinate grid below shows the shape of the badge.
dedylja [7]

Answer:

(8, 4)

Step-by-step explanation:

<em>AD is enlarged to JM</em>

<em>AD² = 2² + 1² = 4 + 1 =5</em>

<em>AD =  √5</em>

then you plug in JM

<em>JM² = 6² + 3² = 36 + 9 = 45</em>

<em>JM = √45 = 3 √5</em>

<em>so if </em>

<em>JM=3 AD</em>

then

<em>ML= 3 DC </em>

<em>then you add</em>

<em>5+3=8</em>

the coordinates for point L are (8, 4)

3 0
3 years ago
Read 2 more answers
(x-2)= - 1/4(x-8) what does x equal?
Alona [7]

Answer:

16/5 or 3 1/5 i think

Step-by-step explanation:

8 0
3 years ago
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CaHeK987 [17]
20,000 would be the answer
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3 years ago
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