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sergij07 [2.7K]
4 years ago
11

Using the sum or difference formulas,how do we find the exact value of sin (285°)?

Mathematics
1 answer:
Semenov [28]4 years ago
6 0
See attachment for the answer:

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The image of a parabolic lens is projected onto a graph. The image crosses the x-axis at –2 and 3. The point (–1, 2) is also on
Black_prince [1.1K]
The right answer for the question that is being asked and shown above is that: "y = -1/3(x – 2)(x + 3)." The image of a parabolic lens is projected onto a graph. The image crosses the x-axis at –2 and 3. The point (–1, 2) is also on the parabola. the equation can be used to model the image of the lens is y = -1/3(x – 2)(x + 3)

6 0
3 years ago
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Tom needs 2 tablespoons of a cleaning product for every 5 quarts of water. How many tablespoons of cleaning products would he ne
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2.5 would be how many tablespoons of cleaner you would add to 4 quarts of water. 

3 0
3 years ago
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What is the distance from the origin (0,0) to the point (34,-78)
pantera1 [17]

Given coordinates (0,0)  and (34,-78).

\mathrm{Compute\:the\:distance\:between\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}

We \ have\ x_1=0, x_2=34, y_1=0 \ and \ y_2=-78.

\mathrm{The\:distance\:between\:}\left(0,\:0\right)\mathrm{\:and\:}\left(34,\:-78\right)\mathrm{\:is\:}

=\sqrt{\left(34-0\right)^2+\left(-78-0\right)^2}

=2\sqrt{1810}

Distance = 2(42.544) ≈ 85.09.

Therefore, distance from the origin (0,0) to the point (34,-78) is 2\sqrt{1810} \ or 85.09 units.


3 0
3 years ago
How can you compare decimals such as 0.21, 1.32, 2.1, and 0.021? ​
luda_lava [24]

Answer:

line up the decimal points first and then compare values, starting with the ones places, then compare the tenths place, then the hundredths, etc.

0.210 - this is 21/100

1.320 - this is 1 32/100

2.100 - this is 2 1/10

0.021 - this is 21/1000

Step-by-step explanation:

smallest is 0.021

0.210

1.32

largest is 2.1

6 0
3 years ago
I need help with math explain how to do it. Thanks! :)
irakobra [83]
For part a it’s sal will leave a $20 tip for part b sals food is $78.22 including tax and tip
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