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3 years ago

I need help with number 14

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

8 0

Answer:

radius = 7.0

Step-by-step explanation:

length of arc* 360/ 285 = circumference

-> 34.8 *360/285 = 43.957 cm

circumference = 2*pi*radius

-> 43.957 = 2* 3.14 * radius

->radius = 6.99996 = 7.0 cm

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The function y=ex is vertically stretched by a factor of 2, reflected across the x-axis, and then shifted down 3 units, find the

Anettt [7]

Answer:

$y = - 2 e^{x} - 3$

Step-by-step explanation:

We have to vertically stretch the function $y = e^{x}$ by a factor of 2.

Then the function will become $y = 2e^{x}$ .

Then it is reflected across the x-axis.

So, the new function will be $y = - 2e^{x}$ .

Now, if the function is shifted down 3 units then the final function will become $y = - 2 e^{x} - 3$ (Answer)

6 0

3 years ago

Whats the answer to this ?

8090 [49]

Answer: $312 ft^{2}$

Step-by-step explanation:

Area of Rectangle = bh = 16 ft x 18 ft = 288 $ft^{2}$

Area of Triangle = 1/2 bh = 1/2 x (16-12) ft x (6) ft x 2 (There's 2 triangles) = 24 $ft^{2}$

24 ft^2 + 288 ft^2 = 312 ft^2

8 0

3 years ago

Evaluate the expression when X= -2 x^2 + 9x + 3

TiliK225 [7]

Answer:

-11

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

x² + 9x + 3

x = -2

Step 2: Evaluate

Substitute in x: (-2)² + 9(-2) + 3
Exponents: 4 + 9(-2) + 3
Multiply: 4 - 18 + 3
Subtract: -14 + 3
Add: -11

3 0

3 years ago

4 tenths + 5 hundredths

Yuliya22 [10]

The answer will be : 510

8 0

3 years ago

Read 2 more answers

The absolute value of a number is its _____ from 0.

Lena [83]

The absolute value of a number is its distance from 0.

5 0

3 years ago