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garik1379 [7]
3 years ago
8

PLEASE HELP With this geometry

Mathematics
1 answer:
sladkih [1.3K]3 years ago
6 0

Answer:

Step-by-step explanation:

The two will add to 90 degress so

6x+17+3x-17=90  combine like terms

9x=90 divide by 9 to isolate the x

x=10

Now sub it into each equation to solve

ABC = 6(10)+17 = 60+17 = 77

CBD = 3(10)-17 = 30-17 = 13

Check = 77+13 = 90 Correct

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Rosa spent $11.52 on 8 candy necklaces for each of her two friends. How much did each necklace cost?
Vaselesa [24]

Answer:

$1.44

Explanation: divide the numbers

5 0
3 years ago
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A cylindrical tank with radius 3 m is being filled with water at a rate of 4 m3/min. How fast is the height of the water increas
Fittoniya [83]

Height of the water increasing is at rate of  #(dh)/(dt)=3/(25 pi)m/(min)#

<h3>How to solve?</h3>

With related rates, we need a function to relate the 2 variables, in this case it is clearly volume and height. The formula is:

#V=pi r^2 h#

There is radius in the formula, but in this problem, radius is constant so it is not a variable. We can substitute the value in:

#V=pi (5m)^2 h#

Since the rate in this problem is time related, we need to implicitly differentiate wrt (with respect to) time:

#(dV)/(dt)=(25 m^2) pi (dh)/(dt)#

In the problem, we are given #3(m^3)/min# which is #(dV)/(dt)#.

So we need to substitute this in:

#(dh)/(dt)=(3m^3)/(min (25m^2) pi)=3/(25 pi)m/(min)#

Hence,  Height of the water increasing is at rate of  #(dh)/(dt)=3/(25 pi)m/(min)#

<h3>Formula used: </h3>

#V=pi r^2 h#

To Learn more visit:

brainly.com/question/4313883

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4 0
2 years ago
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Helppp plsssss!!show your work.<br>Thanks
gregori [183]

You are basically just adding, so combine like terms.

3x^2 + 5x^2 = 8x^2

6x - 2x = 4x

4 - 8 = -4

So the answer is D.

8 0
3 years ago
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Help me with thissss​
yulyashka [42]

Answer:

C

Step-by-step explanation:

7 0
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Liono4ka [1.6K]

Answer:

2x(3x−2)

Step-by-step explanation:

Factor 6x^{2} − 4x

6x^{2} − 4x

=2x(3x−2)

Hope this helps!

4 0
2 years ago
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