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2 years ago

I need help ASAP If ANYONE gets it right will be given BRAINLIEST!!!

Mathematics

2 answers:

kifflom [539]2 years ago

4 0

Last one 9 46/180

It's actually pretty basic

Kay [80]2 years ago

4 0

Answer:

9 46/180

Step-by-step explanation:

common denominator is 180 so you will change the fractions to 36 /180 and 10/180. 1+8=9. 36/180+10/180=46/180 answer is 9 46/180

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an electronics store paid $51.94 for a dvd player. To make a profit the store charges the customer 154% of their cost. what does

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To make a profit. The store needs to make a profit. Buy something from Walmart cheap, sell it for 60% percent more to make a 'good' profit.

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3 years ago

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Find the value of 'x' in the given figure

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$\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}$

(2x-20)°+(x+65)°=180°

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3 years ago

What is the scale factor from AABC to ADEF?

8_murik_8 [283]

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2 years ago

Peter is trying to buy fencing for the perimeter of his garden. His garden is in the shape of a rectangle with a length of 2(x+6

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3 years ago

(3) Two people are at an elevator. At the same time one person starts to walk away from the elevator at a rate of 2 ft/sec and t

Gekata [30.6K]

Answer:

The rate at which the distance between the two people is changing 15 seconds later is 7.28 ft/sec.

Step-by-step explanation:

Here, we note the following

Let the person walking way fom the elevator be X

Let the other person going up in the elevator be Y

Therefore after 15 seconds, their positions will be;

For X, 2 ft/sec × 15 s = 30 ft away from the elevator

For Y, 7 ft/sec × 15 s = 105 ft up in the elevator

At that instant, the distance between them is given as

d² = x² + y²

= 30² +105² = 11925 ft²

d = √11925 ft² = 109.202 ft

The rate of change of the distance between the two peopl, X and Y is given as

$\frac{dd^2}{dt} = \frac{dx^2}{dt} + \frac{dy^2}{dt}$

Therefore, $2d\frac{dd}{dt} = 2x\frac{dx}{dt} + 2y\frac{dy}{dt}$ or $d\frac{dd}{dt} = x\frac{dx}{dt} + y\frac{dy}{dt}$

Since $\frac{dx}{dt}$ is given as 2 ft/sec and $\frac{dy}{dt}$ = 7 ft/sec

Then $d\frac{dd}{dt} = 30 \times 2 + 105 \times 7 = 795\\$

$\frac{dd}{dt} = \frac{795}{109.202 } =7.28 ft/sec$

8 0

3 years ago

Read 2 more answers

I need help ASAP If ANYONE gets it right will be given BRAINLIEST!!!​

I need help ASAP If ANYONE gets it right will be given BRAINLIEST!!!