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kumpel [21]
3 years ago
12

Helppppppp, you must know this​

Mathematics
2 answers:
Debora [2.8K]3 years ago
5 0

Answer:

A

Step-by-step explanation:

3*7=21 then 3*3=9 then u had the numbers and u get 30 which is equivalent to 21+9.so that makes A the answer.

Katena32 [7]3 years ago
3 0

Answer:

I need help too

Step-by-step explanation:

but no one will be nice and answer

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Help me?????? please
lutik1710 [3]
1. Match to B
2. Match to A
3. Match to D
4. Prime

Hope it helps!
4 0
3 years ago
The sum of the 6th and seventh terms in a sequence of 12 numbers with a common difference is 16. What is the Sum of the number s
patriot [66]

Answer:

96

Step-by-step explanation:

commom difference = d

a₆ + a₇ = 16

a₅ + a₈ = (a₆ - d) + (a₇ + d) = a₆ + a₇ = 16

a₄ + a₉ = (a₆ - 2d) + (a₇ + 2d) = a₆ + a₇ = 16

Similarly,

a₃ + a₁₀ = 16, a₂ + a₁₁ = 16, a₁ + a₁₂ = 16

so

a₁ + a₂ + ... + a₁₁ + a₁₂ = 6 x 16 = 96

6 0
2 years ago
Find an equation of the circle that has center (-1, 3) and passes through (1.<br> 1)
pshichka [43]

Answer:

(x + 1)² + (y - 3)² = 8

Step-by-step explanation:

radius (r): √(1 - (-1))² + (1 - 3)² = √8 = 2√2

Formula for circle with center (h,k): (x – h)² + (y – k)² = r²

(x + 1)² + (y - 3)² = 8

3 0
4 years ago
Read 2 more answers
nico put some cupcakes i the oven at 8:55 they need to bake or 25 mins what time do they get took out
Gelneren [198K]
Since an hour has 60 minutes you will take away 5 from 25 and put the 5 on 55 to get 9:00 then you add the rest to get 9:20.

Hope this helps. :)
5 0
3 years ago
Pls if anyone knows the answer that will be greatly appreciated :)
shepuryov [24]

Answer:

For octagon =1080.......

Explanation:

180(8-2)

180×6

1080°

7 0
3 years ago
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