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worty [1.4K]
3 years ago
8

3. A concert choir is arranged, per row, according to an arithmetic sequence. There are 14 singers

Mathematics
1 answer:
blagie [28]3 years ago
8 0

Answer:

3= 26 more singers are on the seventh row

total amount of singers including the first question would be 60

Step-by-step explanation:

so im in the 6th grade but im pretty sure this might be wrong idk

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PLSS HELPP MMEEE FASSTT
marta [7]

Answer:

12313

Step-by-step explanation:

6 0
3 years ago
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Which pair of triangles can be proven congruent by SAS?
ivolga24 [154]

Answer:

Second option

Step-by-step explanation:

They have two congruent pairs of sides and one congruent pair of angles.

4 0
2 years ago
Perform the operation(s) and write the answer in simplest form. (12+13)÷154
wariber [46]

Answer:

0.162

Step-by-step explanation:

(12+13)/154

25/154

0.162

7 0
3 years ago
Plz help I don’t know the answer
Dahasolnce [82]
Are there options for the answers or not? If there is add the options.
5 0
3 years ago
10 points
ollegr [7]

Answer:

FC=25.9

Step-by-step explanation:

<u>Congruent Triangles</u>

The figure shows two triangles FCD and FED. One of their sides is the radius of the circle, they both form a 90° angle with the line CD and ED and they share the same segment FD.

Thus, both triangles are congruent and we have the length of a side (12 units), one common side (the hypotenuse) and one unknown leg that must be equal. Therefore

13x-16=4x+11

Solving

9x=27

x=3

The required side FD is the hypotenuse of any of the triangles. The unknown leg can be calculated by

13x-16=23

Or

4x+11=23

Thus

FD^2=12^2+23^2=673

Solving

FD=\sqrt{673}

\boxed{FC=25.9}

5 0
3 years ago
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