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2 years ago

15

Please help!!!!!!!!! (Solve The quadratic equation by completing the square) 2x^2+12x=66 fill in the value of a and b to complet

e the solution

2 answers:

nydimaria [60]2 years ago

6 0

Answer: in order

x=-3- $\sqrt{42}$

x=-3+ $\sqrt{42}$

Step-by-step explanation:

100 % edmentum

yKpoI14uk [10]2 years ago

5 0

I hope this it

Explanation:

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4 Move the digits in 625,134 to create a new number.Move the 2 so it is worth 1_10as much.Move the 3 so it is worth 10 times as

Jet001 [13]

Answer:

452,316

Step-by-step explanation:

Why do you need a step by step, and i dont see how you would get one.

5 0

3 years ago

In AGHI, h = 300 inches, G=30° and H=29º. Find the length of i, to the nearest<br> inch.

dalvyx [7]

Given:

In triangle GHI, h = 300 inches, G=30° and H=29º.

To find:

The length of i.

Solution:

We have, G=30° and H=29º.

Using angle sum property, we get

$m\angle G+m\angle H+m\angle I=180^\circ$

$30^\circ+29^\circ+m\angle I=180^\circ$

$59^\circ+m\angle I=180^\circ$

$m\angle I=180^\circ-59^\circ$

$m\angle I=121^\circ$

According to Law of sines,

$\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}$

Using Law of sines, we get

$\dfrac{h}{\sin H}=\dfrac{i}{\sin I}$

$\dfrac{300}{\sin 29^\circ}=\dfrac{i}{\sin 121^\circ}$

$\dfrac{300}{0.4848}=\dfrac{i}{0.8572}$

Multiply both sides by 0.8572.

$\dfrac{300}{0.4848}\times 0.8572=i$

$530.44554=i$

$i\approx 530$

Therefore, the length of i is about 530 inches.

6 0

3 years ago

Evaluate the function when x = -3

Marta_Voda [28]

Answer:

10

Step-by-step explanation:

f(-3)=-2(-3)+4=6+4=10

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3 years ago

Gwar [14]

Answer:

LINE D

Step-by-step explanation:

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3 years ago

I mark as brainliest i promise

Nataly_w [17]

Answer:

32 units

Step-by-step explanation:

2 x 4 x 4 = 32

you mulyiply the height the width and the length

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2 years ago

Read 2 more answers