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spin [16.1K]
3 years ago
11

Solve x2 – 2x = 15 by applying the quadratic formula.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0

Answer:

x = -60 and 20300

Step-by-step explanation:

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loris [4]

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8.553

Step-by-step explanation:

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3 years ago
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A box contains 4 black shirts, 8 blue shirts, 4 black pants, and 10 blue pants. Determine the probability of randomly selecting
Rashid [163]
<h3>Answer:  11/13</h3>

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

Explanation:

Add up the four numbers given: 4+8+4+10 = 26 items total

Kick out the 4 black shirts since they are neither blue, nor are they pants.

So we have 26-4 = 22 items that are blue or a pair of pants (or both).

Divide that over the total (26) to get the probability we're after:

22/26 = (11*2)/(13*2) = 11/13

Side note: 11/13 = 0.8462 = 84.62% approximately

7 0
2 years ago
Will mark as brainliest
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Answer:

-1 + 2 = 1

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Step-by-step explanation

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Rule 1 when you add : If the signs are the same add the numbers and take the sign of the bigger number.

Rule 2 when you add : If the signs are different subtract the numbers and take the sign of the bigger number.

I wanted to help you understand and i hope i did that!

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3 years ago
The height of an ostrich is 20 inches more than 4 times the height of kiwi write and solve an equation to find the height of kiw
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