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SpyIntel [72]
3 years ago
8

I need help please can someone explain

Mathematics
1 answer:
slega [8]3 years ago
8 0

hemisphere and cone

Step-by-step explanation:

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Step-by-step explanation:

using SOH CAH TOA.

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3 years ago
Defining congruent triangles cd​
Evgen [1.6K]

Answer:

When two triangles are congruent they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there.

Step-by-step explanation:

When two triangles are congruent they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there.

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A) Write (3x + 1)(x + 4)(2x + 7) in the form ax3 + bx2 + cx + d
Mandarinka [93]

Step-by-step explanation:

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6 0
3 years ago
Does the following infinite series have a sum or not and does it converge or diverge?
iren [92.7K]

Answer:

Step-by-step explanation:

Please present these numbers as a list:  7, -21, 63, -189, ....

Otherwise it appears that you are adding them up, which is not the case.

We can tell that this is a geometric series because each new number is -3 times the previous number:  -3(7) = -21, -3(-21) = 63, and so on.  Let r = -3 and a = first number = 7.

                                                                                                       a

The sum of an infinite geometric series exists if and only if |r} < 1.  Here, |-3|, or 3, so in this case the sum of the series does not exist.  That is, the series diverges.

3 0
3 years ago
What is the area of this triangle?
Ket [755]
The answer is D.) A=1/2(y2-y1)(x3-x1).
Explanation:
Area of a triangle equals side×height.
In this case height is x3-x1, and side y2-y1.
3 0
3 years ago
Read 2 more answers
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