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Sonja [21]
2 years ago
5

Please help! 10 POINTS! Please solve 2x^2+10+8=0

Mathematics
1 answer:
Lelu [443]2 years ago
3 0

Answer:

x must be a negative i mean it has to how tfk do you get zero at an answer what kn the world

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Find the missing side lengths. Leave your answers as radicals in simplest form
tino4ka555 [31]

We have the triangle 30° - 60° - 90°.

The lenght of the sides are in proportion: 1:2:\sqrt3\to a:2a:a\sqrt3

a=y\\2a=x\\a\sqrt3=5\\\\a\sqrt3=5\qquad\text{multiply both sides by}\ \sqrt3\\\\3a=5\sqrt3\qquad\text{divide both sides by 3}\\\\a=\dfrac{5\sqrt3}{3}\\\\2a=2\cdot\dfrac{5\sqrt3}{3}=\dfrac{10\sqrt3}{3}\\\\Answer:\ x=\dfrac{10\sqrt3}{3},\ y=\dfrac{5\sqrt3}{3}

6 0
3 years ago
A bag of birdseed that normally cost $22.25 is marked up to $25.30. What is the percent markup ?
LenaWriter [7]
25.3-22.25 = 3.05
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4 0
3 years ago
A student’s work to simplify and combine radicals is shown below. Select the statement which best applies to the sample mathemat
jeka94
Your answer is incorrect. You forgot to get the square root of 25 and 4. Answer should be 16√2

we can only subtract radicals that are the same. At first glance, 4√50 - 2√8 are not the same, so they are not likely to be subtracted. However, each radical can still be simplified.

4 √50 = 4 √25 * 2 = 4 * 5 √2 = 20 √2
2 √8   = 2 √4 * 2   = 2 * 2 √2 =   4 √2

Now that the radicals are the same. then you can subtract the numbers.

20 √2 - 4 √2 = 16√2

4 0
3 years ago
A substance weighing 961 ounces decays at a rate of 3.2% PER HOUR. What is the weight of the substance after ONE DAY?
kifflom [539]
It would be 961 x (1-3.2(24)) and that would be 961(.232)= 222.952
6 0
3 years ago
Read 2 more answers
Please be quick i need this done
devlian [24]

Answer:

8.8

Step-by-step explanation:

kids cheating in tests.....

8.7749643787

8.8(1dp)

4 0
2 years ago
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