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netineya [11]
3 years ago
6

Sean collected information about the number of hours his 26 classmates exercised last weekend. Sean claimed that his classmates

exercised an average of 7 hours last weekend. Is his claim valid
Mathematics
1 answer:
zlopas [31]3 years ago
6 0

Answer:

Step-by-step explanation:the claim is valid because the average is 7

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Which statement is always false?
FinnZ [79.3K]

Answer:

All parallelograms are squares

Step-by-step explanation:

Reasoning:

You can have a parallelogram with side lengths, i dont know, 5 and 3, right? That isn't a square :)

8 0
3 years ago
Given the sequence 4, 8, 16, 32, 64, ..., find the explicit formula.
Goshia [24]

Answer:

\sf 2^{(n+1)}

Step-by-step explanation:

Explicit formula is used to represent all the terms of the geometric sequence using a single formula.

  \sf \boxed{\bf t_n=ar^{(n-1)}}

Here, a is the first term.

r is the common ratio.

r = second term ÷ first term

4, 8,16,32,64,.....

    a = 4

    r = 8 ÷4 = 2

\sf t_n =4*2^{(n-1)}

    \sf = 4*2^n * 2^{(-1)}\\\\     = 4*2^n*\dfrac{1}{2}\\\\     = 2*2^n

   \sf = 2^{(n+1)}

4 0
1 year ago
WILL UPVOTE
sattari [20]
X= 9 over 4 is the correct answer
6 0
3 years ago
In ∆PQR, ∠P = 90degrees , PQ= 12 cm, PR=16cm. Find ∠Q
siniylev [52]

Answer:

∠Q  = 53.13 degrees

Step-by-step explanation:

Given that ∆PQR, ∠P = 90degrees , this means that the triangle is a right angled triangle

Hence using the notation

SOH CAH TOA

where S is sine, C is cosine, T is tangent and O, A and H represents the size of the opposite, adjacent and hypotenuse sides

Considering  ∠Q and the given sides

PR=16cm is the opposite side,

PQ= 12 cm is the adjacent side hence we use TOA

Tan Q = 16/12 =

Q = Arc tan 16/12

= 53.13 degrees

5 0
2 years ago
Select the correct answer.
riadik2000 [5.3K]
I’m pretty sure it’s y if not I’m sorry
4 0
3 years ago
Read 2 more answers
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