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3 years ago

Please answer this correctly

Mathematics

1 answer:

TiliK225 [7]3 years ago

8 0

Answer:

The top graph

Step-by-step explanation:

The first difference is the top graph says that there are 3 pieces of data between 1-5 and the bottom says 4 pieces. There are actually 3 pieces between 1-5 so the top graph is correct.

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What are the correct answers and why? Simple and concise explanation please!!!

dezoksy [38]

Answer:

$\large\boxed{-\bigg[(x-3)^2+2x\bigg]+1}\\\\\boxed{-x^2+4x-8}$

Step-by-step explanation:

$(g\ \circ\ f)(x)=g\bigg(f(x)\bigg)$

$f(x)=(x-3)^2+2x\\\\g(x)=-x+1\\\\g\ \circ\ f\to\text{put f(x) instead of x in the function g(x)}:\\\\(g\ \circ\ f)(x)=-\bigg[\underbrace{(x-3)^2+2x}_{x}\bigg]+1$

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$-\bigg[(x-3)^2+2x\bigg]+1=-(x-3)^2-2x+1\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=-(x^2-(2)(x)(3)+3^2)-2x+1=-(x^2-6x+9)-2x+1\\\\=-x^2-(-6x)-9-2x+1=-x^2+6x-9-2x+1\\\\\text{combine like terms}\\\\=-x^2+(6x-2x)+(-9+1)=-x^2+4x-8$

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$-x^2+4x-8=-x^2+4x-2^2+2^2-8=-(x^2-4x+2^2)+4-8\\\\=-(\underbrace{x^2-(2)(x)(2)+2^2}_{(a-b)^2=a^2-2ab+b^2})-4=-(x-2)^2-4=-(x+1-3)^2-4$

$In\ (-x+1-3)^2+2x,\ x^2\ will\ be\ positive.\\In\ (-x+1-3)^2+2(-x+1),\ x^2\ will\ be\ positive.$

6 0

3 years ago

Read 2 more answers

The HCF and LCM OF TWO NUMBERS ARE 6 AND 360 RESPECTIVELY.IF ONE OF THE NUMBERS IS 24, WHAT IS OTHER NUMBER

otez555 [7]

Step-by-step explanation:

we know that=

other number=LCM×HCF\One number

=6×360 upon 24

=90

6 0

3 years ago

PLEASE HELP ME 3X+1/14=2X/8 WHAT IS X? EXPLAIN HOW YOU GOT THE ANSWER

balandron [24]

Cross-multiply so that 8(3x + 1) = 14(2x)

Distribute the 8 and 14 into the parentheses:
24x + 8 = 28x

Subtract 24x from both sides:
8 = 4x

Divide both sides by 4:
x = 2

4 0

3 years ago

Work out the sum of 13/15 and 3/10 . Give your answer in its simplest form.

Crank

Answer: 26

Step-by-step explanation:

cut 3 and 15

cut 5/10 which was 15/10

15/10=2

then multiply 13*2 = 26

5 0

3 years ago

The price of a shoes as reduced from 60 to 45. by what percentage was the price of the shoes reduced?

sweet-ann [11.9K]

45 is 75% of 60 but if you’re looking for the difference subtract 75 from 100, so 25%

8 0

3 years ago