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scoundrel [369]
3 years ago
8

Someone help me please

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
8 0

Answer:

You answer should be -12.

Step-by-step explanation:

b2−4ac

=(6)^2−4(4)(3)

=−12

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The polygons are similar but not necessarily drown to scale. What is the value of x?
qaws [65]

Answer: 38

Step-by-step explanation:

Since the polygons are similar, the corresponding sides are all in the same proportions.

x-2/4.5 = 16/2 = 48/6

<u>Solving for x</u>

\frac{x-2}{4.5}=\frac{48}{6}

\frac{x-2}{4.5}=8

\frac{4.5\left(x-2\right)}{4.5}=8\cdot \:4.5

x-2=36

x-2+2=36+2

x=38

Therefore, the value of x is 38

4 0
2 years ago
Please show me how to do this problem
sleet_krkn [62]

Answer:

Hi there, you can use Pitagoras relationship to solve this up (Without using any other "tool".

Point A is located wheter in (-6,8) or could be located in (-6,8)

Step-by-step explanation:

Point A is 10 units away from the origin, and its x coordinate is -6, using this information, you can draw a triangle  from 0 to -6 (the basis) and using 10 as the hypotenuse, so, you have this equation:

H^{2} = x^{2} +y^{2}

solving for Y variable, you have this

y=±\sqrt{10^{2}-(-6)^{2}  }

Note the combined sing ±, meaning that y=8 is a valid answer and that y= -8 is also a valid answer.

Hope It helps

5 0
3 years ago
Multiply and simplify the product. –12i × 3i Select the product. 36 -36 36i -36i
bazaltina [42]

Answer:

36

Step-by-step explanation:

–12i × 3i

Multiply the numbers

-12*3 = -36

Multiply the imaginary number

i*i= i^2

We know i^2 = -1

-36 * -1 = 36

4 0
4 years ago
Read 2 more answers
Simplify 8/9-5/12 in simplest form
Mice21 [21]

Let's first put 8/9 and 5/12 in simplest form.

We need to have the denominators at the same value by find the greatest common multiple.

The GCM of 9 and 12 is 36. By making both denominators 36, we also have to change the numerator.

36/9 is 4 so the numerator of 8/9 has to be multiplied by 4, making that 32/36.

36/12 is 3 so the numerator of 5/12 has to be multiplied by 3, making that 15/36.

Now, that we have the same denominators, we can subtract.

32/36-15/36 can be done simply by just subtracting the numerators together. Remember, the denominators stay the same.

32/35-15/36 = 17/36

Since there is no least common multiple of 17 and 36, then 17/36 is the final answer.

6 0
4 years ago
When 6 less than 3 times a number is increased by 2, it's at least 5 times the same number decreased by 8. Find the solution set
Levart [38]
<h3><u>X is less than or equal to 2.</u></h3>

3x - 6 + 2 ≥ 5x - 8

<em><u>Subtract 3x from both sides.</u></em>

-6 + 2 ≥ 2x - 8

<em><u>Combine like terms.</u></em>

-4 ≥ 2x - 8

<em><u>Add 8 to both sides.</u></em>

4 ≥ 2x

<em><u>Divide both sides by 2.</u></em>

x ≤ 2


3 0
3 years ago
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