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3 years ago

I need help in #3 and 4

Mathematics

2 answers:

seropon [69]3 years ago

6 0

Answer:

3- B (50$ Earned - Graph B is 25 (25 * 10 = 250))

4- 2 Outfits

Step-by-step explanation:

500 (Start)

- 273.98

= 226.02

7.23 * 3

= 21.69

21.69

+ 42.36

= 64.05

226.02

- 64.05

= 161.97

161.97 / 78.12

= 2.07

KengaRu [80]3 years ago

4 0

The answer to Number 3 is B

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F(x) = x^2, g(x) = 2/3 x^2 comparison

daser333 [38]

Answer:

g(x) is a vertical compression of f(x)

Step-by-step explanation:

Equation of graph 1 : $f(x)=x^2$

Equation of graph 2 : $g(x)=\frac{2}{3}x^2$

f(x)→a f(x)

Its is case of vertical stretch or compression

Vertical stretch if |a|>1

Vertical compression if 0<|a|<1

f(x)→a f(x)

So, $x^2$ → $\frac{2}{3}x^2$

So, $a= \frac{2}{3}=0.67$

So,0<|a|<1

So,It is a case of vertical compression

So, g(x) is a vertical compression of f(x)

8 0

3 years ago

Write the equation of a circle whose center is at the origin and contains the point (2, 3).

Ivanshal [37]

Answer:

x²+y²=13

Step-by-step explanation:

any circle with center at (0,0)

is of the form

x²+y²=r²

find out r²

r² = (2²+3²)=13

so the answer

4 0

3 years ago

A chord is 5cm from the centre of a circle of diameter 26cm. find the lenght of the chord

Leviafan [203]

Answer:

the above image is the solution to the question. I hope this helped. if it did mark me the brainliest

7 0

3 years ago

Write the rule for the nth term of each sequence.

stira [4]

Rule for sequence a is: a_n = 10-3n

Rule for sequence b is: a_n = -19+8n

Step-by-step explanation:

a.)7, 4, 1, -2, ...

First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence

Here,

$a_1 = 7\\a_2 = 4\\a_3 = 1\\d = a_2 - a_1 = 4-7 = -3\\d = a_3 - a_2 = 1-4 = -3$

The explicit rule for an arithmetic sequence is:

$a_n = a_1 + (n-1)d$

Putting the value of a1 and d

$a_n = 7 + (n-1)(-3)\\a_n = 7 -3n+3\\a_n = 10-3n$

b.)-11, -3, 5, 13, ...

First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence

Here,

$a_1 = -11\\a_2 = -3\\a_3 = 5\\d = a_2 - a_1 = -3+11 = 8\\d = a_3 - a_2 = 5+3 = 8$

The explicit rule for an arithmetic sequence is:

$a_n = a_1 + (n-1)d$

Putting the value of a1 and d

$a_n =-11 + (n-1)(8)\\a_n = -11 +8n-8\\a_n = -19+8n$

Hence,

Rule for sequence a is: a_n = 10-3n

Rule for sequence b is: a_n = -19+8n

Keywords: Arithmetic sequence, common difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

8 0

3 years ago

I cant figure this out please somome help me please!!!

Nastasia [14]

Just saying BTW that this isn't a mathematics questions per say.

The main reason why cities are placed on coasts is so they are able to trade their goods with other nations abroad, as well as other coastal cities in their own region.

5 0

3 years ago