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Rasek [7]
3 years ago
6

Solve the quadratic equation.......12x^2+178x-40

Mathematics
1 answer:
Nina [5.8K]3 years ago
3 0

Answer:

Look at pics.

Step-by-step explanation:

Hope this helps!

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Advance pile up trigonometry
earnstyle [38]

Answer:

x = 6.9168 or x = 7

Step-by-step explanation:

Hope that helps :)

3 0
3 years ago
A population of 100 insects tripled in size every month. Write a function formula to represent the insect population after x mon
Jet001 [13]

Answer:

3x+100

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Which sequence of transformations will map figure K onto figure K′? Two congruent kites, figure K and figure K prime, are drawn
elixir [45]

Answer:

The sequence of transformations will map figure K onto figure K′

is the first sequence <u>option (1)</u>

======================================================

Step-by-step explanation:

See the attached figure

as shown in the figure the K' is the image of K by reflection over x-axis

<u>But </u> We need to know which sequence of transformations will give the same result.

So, we will test the options by any point from K and its image from K'

i.e: we will test the options using the points (6,5) , (6,-5)

(6,5) ⇒ (6,-5)

<u>option (1):</u>

Reflection across x = 4, 180° rotation about the origin, and a translation of (x + 8, y)

(6,5) ⇒ (2,5) ⇒(-2,-5) ⇒ (6,-5)

<u>option (2):</u>

Reflection across x = 4, 180° rotation about the origin, and a translation of (x − 8, y)

(6,5) ⇒ (2,5) ⇒(-2,-5) ⇒ (-10,-5)

<u>option (3):</u>

Reflection across y = 4, 180° rotation about the origin, and a translation of (x + 8, y)

(6,5) ⇒ (6,3) ⇒ (-6,-3) ⇒ (2,-3)

<u>option (4):</u>

Reflection across y = 4, 180° rotation about the origin, and a translation of (x − 8, y)

(6,5) ⇒ (6,3) ⇒ (-6,-3) ⇒ (-14,-3)

As shown: The sequence of transformations will map figure K onto figure K′

is the first sequence <u>option (1)</u>

7 0
4 years ago
Read 2 more answers
Decreasing the sample size from 750 to 375 would multiply the standard deviation by
Sindrei [870]
The standard deviation of a sample is proportional to 1/√N where N is the sample size. In this case we are decreasing N by half, so we can write:

1/√(N/2) = √2 / √N

If we say that our standard deviation is proportional to 1/√N, the difference that occurred from decreasing the sample size by half resulted in an increase in the standard deviation by a factor of √2.

Therefore, the standard deviation is multiplied by √2.
7 0
3 years ago
Use the quadratic equation to find the answer of<br><br> x^2+2x+2=0
Semenov [28]
Answer:
X= -1+i , -1-i
5 0
3 years ago
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