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OLEGan [10]
3 years ago
10

How do I convert

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
8 0
3x^2-20x-7=0\\
3x^2+x-21x-7=0\\
x(3x+1)-7(3x+1)=0\\
(x-7)(3x+1)=0\\
x=7 \vee x=-\dfrac{1}{3}

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hree vertices of a triangle are located at A (4, 3), B (2, 1), and C (3, 4). Which shows the correct graph of the vertices? A. A
bagirrra123 [75]

Answer: Choice A

Point A is plotted 4 units to the right and 3 units above the origin. Point B is plotted 2 units to the right of and 1 unit above the origin. Point C is plotted 3 units to the right and 4 units above the origin

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

Explanation:

The point A(4,3) means we start at the origin and move 4 units to the right and 3 units up. The x and y axis are separate number lines to mark a location

B(2,1) means we move 2 units to the right and 1 unit up

C(3,4) means we move 3 units to the right and 4 units up

Each time we plot a new point, we always start at the origin.

3 0
2 years ago
Tina practiced piano for 15 hours last month and 45 hours this month A. Use multiplication to write a statement comparing the ho
KonstantinChe [14]

Answer: The answer is (a) 3 × x = y   and   (b) x + x + x = y.

Step-by-step explanation: Let 'x' and 'y' denote the number of hours that Tina practised last month and this month respectively.

Then, according to the given information, we have

x = 15   and   y = 45.

We can write the relation between 'x' and 'y' in two forms as follows -

(a) Multiplication form :   3 × 5 = 15  implies 3 × x = y.

(b) Addition form : 15 +15 +15 = 45  implies x + x + x = y.

Thus, the answers are (3 × x = y) and  (x + x + x = y).


4 0
3 years ago
after 24.0 days, 2.00 milligrams of an original 128.0 milligram sample remain. what is the half-life of the sample?
coldgirl [10]
<span>(1/2)n = 0.015625 
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</span>
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3 years ago
If the terminal point of theta is(0,-1) what is tan theta
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Answer:

I'm pretty sure it's undefined, sorry if this is wrong

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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tino4ka555 [31]

√72 = √4 * √18 = 2√18. Therefore her answer is incorrect.

√72 = √4 * √9 * √2 = 6√2.

Since √2 is approximately 1.41,

6 * 1.41 = 8.46 = 8.5 (nearest tenth).

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3 years ago
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