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3 years ago

The original point is (-3, -7), what is the new point after a rotation clockwise 270°?

Mathematics

1 answer:

ycow [4]3 years ago

7 0

Answer:

(7, - 3 )

Step-by-step explanation:

Under a clockwise rotation about the origin of 270°

a point (x, y ) → (- y, x )

Thus

(- 3, - 7 ) → (7, - 3 )

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A new shopping mall records 150 total shoppers on their first day of business. Each day after that, the number of shoppers is 15

Wewaii [24]

The number of shoppers is an illustration of an exponential function.

The expression for the number of shoppers is: $\mathbf{f(n) = 150(1.15)^n}$

The given parameters are:

$\mathbf{a = 150}$ -- the number of shoppers on the first day of business

$\mathbf{r = 15\%}$ --- the rate

Because, the number of shoppers increases each day, the number of shopper on a certain day is:

$\mathbf{f(n) = a \times (1 + r)^n}$

Substitute 15% for r

$\mathbf{f(n) = a \times (1 + 15\%)^n}$

Express percentage as decimal

$\mathbf{f(n) = a \times (1 + 0.15)^n}$

$\mathbf{f(n) = a \times (1.15)^n}$

Substitute 150 for a

$\mathbf{f(n) = 150 \times (1.15)^n}$

$\mathbf{f(n) = 150(1.15)^n}$

Hence, the expression for the number of shoppers is: $\mathbf{f(n) = 150(1.15)^n}$

Read more about exponential functions at:

brainly.com/question/11487261

4 0

3 years ago

2 Points

Gnesinka [82]

Answers are A, C, and D!

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3 years ago

Solve the system using substitution. 5x + 3y = -4 y - 2x = 6 ([?], [? ])

sp2606 [1]

Answer:

(-2,2)

Step-by-step explanation:

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2 years ago

How do I solve 8/9x=8+4/9x

zhuklara [117]

You subtract 4/9x frm 8/9x which is 4/9x = 8 then you multiply 9 to 8 so it is 4x = 72. After that, you divide 4 from 72 and get 18

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3 years ago

A new car is purchased for $17,900. The value of the car depreciates at 13% per year. What will the value of the car be , after

Vanyuwa [196]

Answer: The value of the car will be $1000

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