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3 years ago

HELP PLEASE!!

Mathematics

1 answer:

jonny [76]3 years ago

8 0

Answer:

B. 4n+2

Step-by-step explanation:

You are given the pattern 6, 10, 14, 18, 22

Rewrite it as

$a_1=6\\ \\a_2=10\\ \\a_3=14\\ \\a_4=18\\ \\a_5=22$

Note that

$a_2-a_1=a_3-a_2=a_4-a_3=a_5-a_4=4$

This means that given pattern is a part of arithmetic sequence with

$a_1=6\\ \\d=4$

So, the nth term of this arithmetic sequence is

$a_n=a_1+(n-1)d\\ \\a_n=6+4(n-1)\\ \\a_n=6+4n-4\\ \\a_n=4n+2$

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When making pink paint the teacher use the ratio 3:2 for every 3 cups of white paint she uses in the mixture she needs to use 2

klio [65]

The ratio is 3:2, which equals 1.5

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3 years ago

How many like terms are in the expression:5a^2+6b+a^2-3b-2+4c.

Goryan [66]

Solution

Part 3

For this case we have 6 different terms

Part 4

We can do the following:

$5a^2+a^2+6b-3b+4c-2$

Part 5

And we can simplify on this way:

$6a^2+3b+4c-2$

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1 year ago

Which is the simplified form of the expression?

Scorpion4ik [409]

Answer:

1 / q^30.

Step-by-step explanation:

[(p^2)(q^5)]^-4 * [(p^-4)(q^5)]^-2

Using the law (a^b)^c = a^bc :-

= p^-8 * q^-20 * p^8 * q^-10

= p^(-8+8) * q^(-20-10)

= p^0 * q^-30

= 1 * q^-30.

= 1 / q^30.

8 0

3 years ago

Help help help help help help help help her

motikmotik

I hope this helps you

3 0

3 years ago

Read 2 more answers

Does anyone know the answer?

Alex787 [66]

Answer:

£0.60

Step-by-step explanation:

If each pack costs £1.59 and Nadia orders 15 packs,

then the total order before discount = 1.59 x 15 = £23.85

From the table given, we can see that for an order of £23.85 a 2.5% discount will be applied.

Divide £23.85 by 100 to get 1%: £23.85 ÷ 100 = £0.2385

Now multiply by 2.5 to get 2.5%: £0.2385 × 2.5 = £0.59625 = £0.60

Alternatively, the calculation in one expression is:

(1.59 × 15) × 0.025 = 0.59625

7 0

2 years ago