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dedylja [7]
3 years ago
6

Helpppppppppppppppppppp

Mathematics
1 answer:
Sliva [168]3 years ago
8 0
a_1=11+(1-1)(4)=11+0=11\\\\a_2=11+(2-1)(4)=11+4=15

so:

a_2=a_1+\,?\\\\15=11+\,?\\\\\boxed{?=4}

Answer B.
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A cylinder is shown. Use 3.14 as the value of pi 7 mm for radius 11 mm for height​
sukhopar [10]

Answer:

Volume is 1,692.46

Step-by-step explanation:

pi(r^2)(h), 3.14(49)(11)

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2 years ago
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2 years ago
How many different 4-question geometry quizzes can a teacher make if there are 7 different problems to test on?.
stich3 [128]

Answer:

35 quizzes

Step-by-step explanation:

We need to determine how many ways we can choose 4 questions out of 7 to make the quizzes.

We do this by using the formula \displaystyle nCr=\frac{n!}{r!(n-r)!} which describes the number of ways we can choose r objects given n possible choices. So, if n=7 and r=4, then:

_4C_7=\frac{7!}{4!(7-4)!}\\\\_4C_7=\frac{7*6*5*4!}{4!*3!}\\\\_4C_7=\frac{210}{6}\\\\_4C_7=35

Hence, the teacher can make 35 different geometry quizzes.

3 0
2 years ago
Which set of ordered pairs below is a function?
Paha777 [63]
The answer is A.

Ordered pairs that equate to a function would not have two separate points with the same x-value. In other words, every x-value must be associated with only one y-value.
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3 years ago
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