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3 years ago

-4+x= -11 please answer it

Mathematics

2 answers:

Slav-nsk [51]3 years ago

8 0

Answer:

x=-7

Step-by-step explanation:

add 4 to both sides. leaving you with x=-7

djverab [1.8K]3 years ago

8 0

Answer:

I think the answer would be -7

Hope this helps!

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What represents the recursive formula for the arithmetic sequence an=7-3(n-1)

Licemer1 [7]

Answer:

$\left\lbrace\begin{aligned}& a_{1} = 7 \\ & a_{n+1} = a_{n} - 3 && \text{for $n \ge 1$}\end{aligned}\right.$ .

Step-by-step explanation:

An arithmetic sequence could be defined using only two pieces of information:

The first term of this sequence, $a_{1}$ .
The common difference between two consecutive terms of this sequence, $d$ .

The arithmetic sequence in this question is given in the explicit form, $a_{n} = 7 - 3\, (n - 1)$ , which is equivalent to $a_{n} = 7 + (-3)\, (n - 1)$ . In the explicit form, $a_{1}$ and $d$ are described in the same equation:

$\text{$a_{n} = a_{1} + d\, (n - 1)$ for $n \ge 1$}$ .

Compare $a_{n} = a_{1} + d\, (n - 1)$ with $a_{n} = 7 + (-3)\, (n - 1)$ : $a_{1} = 7$ whereas $d = -3$ .

When an arithmetic sequence is given in the recursive form, $a_{1}$ and $d$ are specified in two separate equations:

$\left\lbrace\begin{aligned}& a_{1} = a_{1} \\ & a_{n+1} = a_{n} + d && \text{for $n \ge 1$}\end{aligned}\right.$ .

In this question, it was found that $a_{1} = 7$ whereas $d = -3$ . Hence, the corresponding recursive formula for this arithmetic sequence would be:

$\left\lbrace\begin{aligned}& a_{1} = 7 \\ & a_{n+1} = a_{n} + (-3) && \text{for $n \ge 1$}\end{aligned}\right.$ .

7 0

2 years ago

Can someone help me with this question?

Marysya12 [62]

I believe the variable d equals 13. Since the rule is x-6=y. So you just incorporate 7, since 7=y the equation now will look like x-6=7. Now you just solve it. X=13 other known as d=13.

5 0

3 years ago

Really easy for high schoolers (The first correct answer gets brainliest! )

Arturiano [62]

Answer:-18

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Original

El Swing encarna el espíritu de la Revolución Francesa.

falso

El Swing fue un éxito inmediato debido a su brillantez técnica y al escándalo detrás de él.

cierto

Las pinturas de Jean-Honoré Fragonard tratan temas religiosos serios.

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Las pinturas Marriage A-la-Mode de Hogarth corresponden y, en ocasiones, evocan deliberadamente el arte francés y el diseño rococó.

cierto

En la serie Marriage A-la-Mode de Hogarth, Lord Squanderfield es robusto y saludable.

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Step-by-step explanation:

8 0

3 years ago

5) y = -7x - 13<br> 8x + y = -14

Zolol [24]

y = -7x - 13

y = -8x - 14 Subtracting:-

0 = x + 1

x = -1

From fisrst equation y = -7(-1) - 13 = -6

answer is x = -1 and y = -6

7 0

3 years ago

3. Cathy is purchasing a DVD player and a TV at the local electronic store. The DVD player costs

Archy [21]

Answer:

Cathy would have to pay $62.88 per month for them to come out to equal payments

Step-by-step explanation:

First you add $49.36 and $705.20 and you get $754.56

After you have to divide your answer by how many months which is 12 so you ed up gettibg 62.88

5 0

3 years ago