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3 years ago

Please help me please please help me

Mathematics

1 answer:

Lynna [10]3 years ago

8 0

Answer:

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Step-by-step explanation:

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Tyler's height is 57 inches. What could be his height in centimeters? Explain your resoning. Nost: 1 inch=2.54 centimeters

AfilCa [17]

Answer:

Tyler's height in centimeters is, 144.78 centimeters.

Step-by-step explanation:

Given the statement: Tyler's height is 57 inches.

To find his height in centimeters.

Using the conversion:

$1 {\tex}inch = 2.54 {\tex}centimeters$

Proportion states that the two ratios or fraction are equal.

Using proportion method:

$\frac{1}{57} = \frac{2.54}{x}$

By cross multiply, we get

$x = 57 \times 2.54 = 144.78$ centimeters.

therefore, his height in centimeter is, 144.78 inches.

4 0

3 years ago

Find the x- and y- intercepts of y = |x+1| -3 Someone help me please

zepelin [54]

Answer:

x-intercepts: (-4,0) and (-2,0) y-intercepts: (0,-2)

Step-by-step explanation:

x-intercept:

y = |x+1| - 3

0 = |x+1| - 3

3 = |x+1|

The numbers -4 and 2 are the x-intercepts because if you add -4 and 1, you get the absolute value of -3, which is 3. If you add 2 and 1, you get the absolute value of 3, which is 3.

y-intercept:

y = |x+1| - 3

y = |0+1| - 3

y = |1| - 3

y = 1 - 3

y = -2

6 0

3 years ago

\int\limits^0_∞ cos{x} \, dx

JulijaS [17]

Answer:

$\displaystyle \int\limits^0_\infty {cos(x)} \, dx = sin(\infty)$

General Formulas and Concepts:

Pre-Calculus

Unit Circle
Trig Graphs

Calculus

Limits
Limit Rule [Variable Direct Substitution]: $\displaystyle \lim_{x \to c} x = c$
Integrals
Integration Rule [Fundamental Theorem of Calculus 1]: $\displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)$
Trig Integration
Improper Integrals

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle \int\limits^0_\infty {cos(x)} \, dx$

Step 2: Integrate

[Improper Integral] Rewrite: $\displaystyle \lim_{a \to \infty} \int\limits^0_a {cos(x)} \, dx$
[Integral] Trig Integration: $\displaystyle \lim_{a \to \infty} sin(x) \bigg| \limits^0_a$
[Integral] Evaluate [Integration Rule - FTC 1]: $\displaystyle \lim_{a \to \infty} sin(0) - sin(a)$
Evaluate trig: $\displaystyle \lim_{a \to \infty} -sin(a)$
Evaluate limit [Limit Rule - Variable Direct Substitution]: $\displaystyle -sin(\infty)$

Since we are dealing with infinity of functions, we can do a numerous amount of things:

Since -sin(x) is a shift from the parent graph sin(x), we can say that -sin(∞) = sin(∞) since sin(x) is an oscillating graph. The values of -sin(x) already have values in sin(x).
Since sin(x) is an oscillating graph, we can also say that the integral actually equates to undefined, since it will never reach 1 certain value.

∴ $\displaystyle \int\limits^0_\infty {cos(x)} \, dx = sin(\infty) \ or \ \text{unde}\text{fined}$

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Improper Integrals

Book: College Calculus 10e

7 0

3 years ago

Somebody please help.

BabaBlast [244]

I believe the answer is B. The reason is because when you add 65 and 65 you get 130.

6 0

3 years ago

A group of students organized a car wash to raise money for a local charity. The students charged $9.99 for each car they watche

kari74 [83]

Answer:

$319.68

Step-by-step explanation:

1. 14*9.99=139.86

2. 139.86/3.5=39.96

3. 39.96*8=319.68

Hope this helps

6 0

2 years ago

Read 2 more answers