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3 years ago

!!NEED HELP!!

Mathematics

1 answer:

anygoal [31]3 years ago

3 0

Answer:

A)6, 2, -2,-6

Step-by-step explanation:

a(n) = a +(n-1)d

a(n) = a +dn-d

a(n) = a-d + dn

a(n) = 10 - 4n

So d=-4

to get a: (a-d)=10

a=10-4=6

The first four terms:

a(1) = 6 +(1-1)-4=6

a(2) = 6 +(2-1)-4=2

a(3) = 6 +(3-1)-4=-2

a(4) = 6 +(4-1)-4=-6

it will be A

hope this helps

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Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x) = quantity x minus seven divided by quantity

Ket [755]

You need to take the whole function of g(x) and plug it into every single x within f(x). Bit tricky, so it just means we need to be careful. Alright, so this is the first set-up−2x−7x−1−7−2x−7x−1+2So what You should do is make the top portion and the bottom portion all into one fraction. This means I need a common denominator. So to do this, I'll take x-1 as a common denominator and multiply it up into the numerator and the imaginary 1 denominator of -7 and 2. Doing this I have:−2x−7−7(x−1)x−1−2x−7+2(x−1)x−1From here if I divide the top fraction and the bottom fraction, (x-1) will cancel out dueto me flipping the bottom fraction and multiplying. So that leaves me with:−2x−7−7(x−1)−2x−7+2(x−1)Now if I multiply everything out and combine like terms I will have:−2x−7−7x+7−2x−7+2x−2=−9x−9=xSo that is the first part. We have to check both ways to confirm they are actually inverses of each other, though. Take a look at this part and see if you can make sense of what I did.

7 0

3 years ago

Ayúdenme en esto porfavor

soldier1979 [14.2K]

-----48

-----3/4

-----X

Sabiendo los datos

Planteamos ecuación:

==> En este caso debemos hallar el 3/4% de 48.

Usamos la regla de tres simple.

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf{ \boxed{\frac{3}{4} \times 48 }}$

Resolvemos.

$\sf{ \boxed{\frac{3}{4} \times 48 = \frac{ \frac{3}{4} }{100} \times 48 = \frac{3}{400} \times 48 = \frac{3}{25} \times 3 = \frac{9}{25} }}$

Hallamos el decimal de 9/25

$\: \: \: \: \boxed{ \bold{\sf \rightarrow\frac{9}{25} = 9 \div 25 = 0.36 }}$

Entonces podemos decir que:

En total a Susana le faltan 0.36km para llegar a casa.

#Spj2

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2 years ago

Your school’s band decides to sell cookie dough kits to raise money for a spring field trip. There is a Family Times Cookie Doug

nikitadnepr [17]

Answer:

Step-by-step explanation:

let the Cookie Dough kit be x

and Baker’s Delight kit be y

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cost of Baker’s Delight= $15

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solve for x and y we have

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A. How many of each type of kit should your band purchase to raise the most money

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Baker’s Delight= 70

B. What is the most money that your band can raise?

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Baker’s Delight profit= selling price-cost price= 25-15= $10

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3 0

3 years ago

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Paul [167]

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Bas_tet [7]

Answer:

Step-by-step explanation:

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