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Eddi Din [679]
3 years ago
12

What is the sum of the described series? Use . Sn=(a1+an/2)

Mathematics
1 answer:
Greeley [361]3 years ago
8 0

Answer: The answer is A

Step-by-step explanation:

You math it. :)

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Find the measure of DB (a curvy line is on top of DB btw)
klasskru [66]

Answer:

Arc DB = 146

x = 5

Step-by-step explanation:

Remark

The relationship between the large arc, the small arc and the intersecting angle is

1/2 (large arc - small arc) = intersecting angle.

Givens

Large arc = 25x + 21

Small arc = 96

5x

Solution

1/2*(25x + 21 - 96) = 5x*2            Multiply both sides by 2

25x + 21 - 96 = 10 x                     Combine      

25x - 75 = 10x                             Subtract 25x from both sides

-75 = 10x - 25x

-15x = -75

x = 5

DB = 25x + 21

DB = 25*5 + 21

DB = 125 + 21

DB = 146

Tell me if this is not in the choices.

5 0
2 years ago
Find the lateral area of the prism. 27 sq. ft. 36 sq. ft. 54 sq. ft. Find the total area of the prism. T.A.= Find the volume.
Yakvenalex [24]
The volume would be 54 sq. f.
7 0
3 years ago
Read 2 more answers
Find the roots of the quadratic equation x² – 8x = 9 by completing the square. Show your work.
Artist 52 [7]
No solutions beacause you have to factor out numbers for -9 but they must equal -8 when adding them.
8 0
3 years ago
Solve for X:-1 Plz help
elena55 [62]

Answer:

Lo siento, solo necesitaba los puntos

Step-by-step explanation:

Lo siento, solo necesitaba los puntos

Lo siento, solo necesitaba los puntos

Lo siento, solo necesitaba los puntosvv

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4 0
3 years ago
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Write a verbal phrase for the following algebraic expression 12y
aleksandrvk [35]

The product of a number y and 12 or 12 times a number y. These are both equivalent expressions to 12y

6 0
3 years ago
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