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3 years ago

I really need help pls I don’t understand it would be great if anyone could pls help me I’ve been on this for like 5 mins

Mathematics

1 answer:

pickupchik [31]3 years ago

6 0

Answer:

6 is the answer

Step-by-step explanation:

probably won't help but stay safe :)

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A boat heads south at 120 mph while a steamer heads east at 50 mph. If they started from the same dock and at the same time, whe

Snezhnost [94]

Answer:

1 hour after they leave

Step-by-step explanation:

The distance each travels is proportional to its speed. The given speeds are at right angles to each other in a 5:12 ratio. The Pythagorean theorem tells you the hypotenuse of such a right triangle will have length ...

√(5²+12²)=√169 = 13

That is the speeds are in the ratio 5:12:13, where 13 represents the relative separation speed. Actual speeds are then 50 mph : 120 mph : 130 mph.

So the distance between the boat and steamer will be increasing at 130 mph. The distance will be 130 miles after 1 hour.

8 0

3 years ago

Read 2 more answers

Value of the derivative of g(x)=8-10Cosx at 'x=0' is?

VLD [36.1K]

Answer:

g'(0) = 0

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Pre-Calculus

Unit Circle

Calculus

Derivatives
Derivative Notation
The derivative of a constant is equal to 0
Derivative Property: $\frac{d}{dx} [cf(x)] = c \cdot f'(x)$
Trig Derivative: $\frac{d}{dx} [cos(x)] = -sin(x)$

Step-by-step explanation:

Step 1: Define

g(x) = 8 - 10cos(x)

x = 0

Step 2: Differentiate

Differentiate [Trig]: g'(x) = 0 - 10[-sin(x)]
Simplify Derivative: g'(x) = 10sin(x)

Step 3: Evaluate

Substitute in x: g'(0) = 10sin(0)
Evaluate Trig: g'(0) = 10(0)
Multiply: g'(0) = 0

3 0

3 years ago

PLEASE HELP with proving lines parallel

den301095 [7]

90 mins later we had to go to sleep for sub for two other people that were not

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3 years ago

Answer Key Question 1 (Worth 1 points) (02.02) A store offers a 15% discount on all items in the store during a sale. All store

Sunny_sXe [5.5K]

C=71.91. plug 100 into the equation as x, then solve for C

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3 years ago

Rebecca wants to put 544 pennies in a coin collection book. the blue book fits 9 pennies per page. the red book fits 7 pennies p

natali 33 [55]

If she uses the blue book then she will need,

544/9 ≈ 61 pages

If she uses the red book the she will need,

544/7 ≈ 78 pages

So she will need 17 more pages if she uses the red book.

Hope this helps :)

6 0

3 years ago