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2 years ago

Question 1 to 4 please answer please please

Mathematics

1 answer:

Gnom [1K]2 years ago

4 0

It has been a while since I had done these, but I believe you need to multiply all the measurements together

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I NEED A.S.A.P PLEASE I WILL GIVE BRAINLIEST

vitfil [10]

Answer:

C. 91.46

Step-by-step explanation:

Use BODMAS!

4 0

2 years ago

Read 2 more answers

What is the nth term?

kumpel [21]

Let $a_k$ denote the kth term of the sequence. Then

$a_k=a_1+d(k-1)$

where d is the common difference between consecutive terms in the sequence and a₁ is the first term.

The sum of the first n terms is

$S_n=\displaystyle\sum_{k=1}^na_k=a_1+a_2+\cdots+a_{n-1}+a_n$

From the formula for $a_k$ , we get

$S_n=\displaystyle\sum_{k=1}^n(a_1+d(k-1))=a_1\sum_{k=1}^n1+d\sum_{k=1}^n(k-1)$

$S_n=\displaystyle na_1+d\sum_{k=0}^{n-1}k$

$S_n=na_1+\dfrac{d(n-1)n}2$

$S_n=\dfrac n2(2a_1-d+dn)$

So we have $d=-5$ , and $2a_1-d=16$ so that $a_1=\frac{11}2$ .

Then the nth term in the sequence is

$a_n=\dfrac{11}2-5(n-1)=\boxed{\dfrac{21-10n}2}$

7 0

3 years ago

HELP :(

puteri [66]

Someone is answering the question.

3 0

2 years ago

Bill and Dave collect baseball cards. They have 111 cards in total. Dave has twice as Bill. how many cards does each of them hav

never [62]

Answer:Dave has 74 and Bill has 37

Explanation:111÷3=37×2=74

111-74=37

3 0

3 years ago

Which expression is equivalent to (3b +2r) + (4b + r )

VladimirAG [237]

Answer:

Step-by-step explanation:

The one that looks most closely to this.

(3b + 2r) + (4b + r) Remove the brackets.

3b + 2r + 4b + r Rewrite so the terms are close to each other.

3b + 4b + 2r + r Combine

7b + 3r or

3r + 7b

One of the two of these can be given as an answer. Please give choices if you want me to give an exact answer.

6 0

3 years ago

Read 2 more answers