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2 years ago

15

There are four more girls than boys in Ms. Raub's class of 28 students. What is the ratio of number of girls to the number of bo

ys in her class?

1 answer:

Alex73 [517]2 years ago

8 0

16:12

Subtract 4 from 28 then divide by 2.

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Anyone help me with this?

den301095 [7]

h = 4(x+3y) + 2

4×x = 4x

4×3y= 12y

4x+12y+2

x= $\frac{12y+2}{4} \\\$

tell me if im wrong

ignore the last bit, x=$

4 0

2 years ago

Please. Answer Fast! Use composition to determine if G(x) or H(x) is the inverse of F(x) for the

s344n2d4d5 [400]

Answer:

A. H(x) is an inverse of F(x)

Step-by-step explanation:

The given functions are:

$F(x)=\sqrt{x-2}$

$G(x)=(x-2)^2$

$H(x)=x^2+2$

We compose F(x) and G(x) to get:

$(F\circ G)(x)=F(G(x))$

$(F\circ G)(x)=F((x-2)^2)$

$(F\circ G)(x)=\sqrt{(x-2)^2-2}$

$(F\circ G)(x)=\sqrt{x^2-4x+4-2}$

$(F\circ G)(x)=\sqrt{x^2-4x+2}$

$(F\circ G)(x)\ne x$

Hence G(x) is not an inverse of F(x).

We now compose H(x) and G(x).

$(F\circ H)(x)=F(H(x))$

$(F\circ H)(x)=F(x^2+2)$

$(F\circ H)(x)=\sqrt{x^2+2-2}$

We simplify to get:

$(F\circ H)(x)=\sqrt{x^2}$

$(F\circ H)(x)=x$

Since $(F\circ H)(x)=x$ , H(x) is an inverse of F(x)

3 0

2 years ago

sally needs $20,000 in 4years. she has $10,000 to invest. if interest is compounded continuously, what rate is required for Sall

I am Lyosha [343]

10,000 Because you need to add 10,000 add its going to give you 20,000

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2 years ago

What is the answer for 0.025×10=

Mashutka [201]

The answer would be 0.25... when multiplying by 10, shift the decimal place one to the right.

8 0

2 years ago

Read 2 more answers

Guys I need help, this is so important for my grade

Dmitrij [34]

Answer:

For Part C) use numbers 1 2 3 4.

Step-by-step explanation:

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2 years ago