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Jlenok [28]
3 years ago
14

A rug covers 79 square feet of the floor. What is the approximate length of one side of the rug

Mathematics
1 answer:
sesenic [268]3 years ago
4 0

The best and most correct answer among the choices provided by the question is sqrt(79) or 8.89 feet.

Hope my answer would be a great help for you

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A complex number z=a+bi had an absolute value of 3.28. What could the values of a and b be ? A.a=1.5,b=1.7 C.a=1.7,b=2.8
Levart [38]
The given complex number is ⇒ z = a + b i
The absolute value of z = √( a² + b² ) = 3.28
So, we will check which of the options will give 3.28

<span>( A) IF ⇒⇒ a=1.5 and b=1.7
</span>
<span>∴ √( a² + b² ) = √( 1.5² + 1.7²) = √5.14 ≈ 2.27
</span>
===================================

<span>(B) IF ⇒⇒ a=1.5 and b=3.3
</span>
<span>∴ √( a² + b² ) = √(1.5² + 3.3²) = √13.14 ≈ 3.62
</span>
====================================

<span>(C) IF ⇒⇒ a=1.7 and b=2.8
</span>
<span>∴ √( a² + b² ) = √(1.7² + 2.8²) = √10.73 ≈ 3.28
</span>
====================================

<span>(D) IF ⇒⇒ a=2.8 and b=3.3
</span>
∴ √( a² + b² ) = √(2.8² + 3.3²) = √18.73 ≈ 4.33
=====================================
So, the correct answer is option (C) <span>a=1.7,b=2.8</span>
4 0
3 years ago
Subtract. −13−(−6) a−19 b−7 c-19
Elza [17]

Answer:

-7

Step-by-step explanation:

-13-(-6)

-13+6

-7

6 0
2 years ago
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What is the value of q in the equation 5q − 10 = 75?
Kamila [148]

Answer:

should be 17

Step-by-step explanation:

5 0
2 years ago
Y+3=−4(x+7)<br> what is the slope&gt;
Wewaii [24]

Answer:

......Im pretty sure its -4

7 0
2 years ago
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Assume that x and y are both differentiable functions of t and find the required values of dy/dt and dx/dt.
Sedbober [7]

Answer:

a. \frac{dy}{dt} = -\frac{13}{8}

b. \frac{dx}{dt} = \frac{9}{2}

Step-by-step explanation:

To solve this question, we apply implicit differentiation.

xy = 2

Applying the implicit differentiation:

y\frac{dx}{dt} + x\frac{dy}{dt} = \frac{d}{dt}(2)

y\frac{dx}{dt} + x\frac{dy}{dt} = 0

a. Find dy/dt, when x = 4, given that dx/dt = 13.

x = 4

So

xy = 2

4y = 2

y = \frac{2}{4} = \frac{1}{2}

Then

y\frac{dx}{dt} + x\frac{dy}{dt} = 0

\frac{1}{2}(13) + 4\frac{dy}{dt} = 0

4\frac{dy}{dt} = -\frac{13}{2}

\frac{dy}{dt} = -\frac{13}{8}

b. Find dx/dt, when x = 1, given that dy/dt = -9.

x = 1

So

xy = 2

y = 2

Then

y\frac{dx}{dt} + x\frac{dy}{dt} = 0

2\frac{dx}{dt} - 9 = 0

2\frac{dx}{dt} = 9

\frac{dx}{dt} = \frac{9}{2}

3 0
3 years ago
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