3 years ago

Help please i need it done today!!!!!

Mathematics

1 answer:

natali 33 [55]3 years ago

4 0

180 I think not sure if I am right

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A triangle has side lengths 11, 12, and 15. Is it acute, obtuse, or right?

Sedbober [7]

Answer:

right triangle

Step-by-step explanation:

because 15 would be the base so 11 and 12 would be the sides and fot the triangle to be acute or obtuse the total of the sides (11+12) has to be lass than the base (15), but it is more 23 so it has to be a right triangle.

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Solve 5x^2+2x=1 using either factoring, square root method, completing the square or quadratic formula.

wolverine [178]

Answer:

x = -1 ± √6 / 5

Step-by-step explanation:

Solve $5x^{2}$ + 2x = 1

move 1 to the left side of the equation by subtracting it from both sides.

$5x^{2}$ + 2x - 1 = 0

Use the quadratic formula to find the solutions.

-b± $\sqrt{b^2 - 4 (ac)}$ / 2a

Substitute the values a = 5 , b = 2, and c = -1 into the quadratic formula and solve for x

-2± $\sqrt{2^2 - 4(5 - 1)}$ / 2 ⋅ 5

Simplify.

x = -2 ± 2 $\sqrt{6}$ / 10

x = -1 ± $\sqrt{6}$ / 5

Exact Form:

x = -1 ± $\sqrt{6}$ / 5

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3 years ago

29. The cost of renting a bike is $10 to take the bike and $4 for every hour it spends in our possession. The final sum we paid

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Answer:

5 hours

Step-by-step explanation:

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Simplify. 14a^2bc^4/21abc^6

kramer

14a^2bc^4/21abc^6 = 2a/3b^2

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2 3/4÷2/5 will mark brainleyst

olga55 [171]

Answer:

6 7/8

Step-by-step explanation:

Result in decimals: 6.875

In pic

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