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Gala2k [10]
3 years ago
9

If angle ABC is congruent to angle CBD find x. My answer was 72, which was incorrect

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
7 0
If they are congruent then they are equal
7x-40=4x+32
7x-4x=32+40
3x=72
x=24
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Question 1
Alex777 [14]
Riki ...
Most questions on Brainly offer 5 points in return for answering one question,
but here you've listed five of them to be answered for 5 points.  That's kind of
much.
Also, it's not clear what cylinders Question-2 and Questioin-3 refer to. 
They might be the two pictures under the question, but we don't rally know.
Fortunately, all five of your questions are answered with the same formula ...
the formula for the volume of a cylinder.
Here it is:

         Volume of a cylinder = ( π ) · (radius)² · (height or length)  .

                                       V  =  π  R²  H  .

That's it.  That's all you need to answer any or all of the five questions.
So I've actually given you everything you need to answer them, and in
doing that, I've already earned 5 points.  But, being the ever helpful guy
that I am, I'll work out two of the questions for you, to show you how to
use the formula.

Question #1).  <span>A cylinder has a radius of 14 m and a height of 6 m.

              </span>Volume  =  π  R²  H 

                           =  (π)  (14m)²  (6m)

                           =  (π)  (196m²)  (6m)

                           =      1,176 π  m³  =  71,763,930 π in³

(Notice how confusingly and sloppily the question is written . . .
the dimensions of the cylinder are given in meters, but the
answer choices are listed in cubic-inches.  I've shown the
answer in both units.)

Question 5).  <span>A can has a radius of 2.8 feet and holds 86.21 cubic feet.

           </span><span>Volume  =  π  R²  H

           86.2 ft³  =  π (2.8 ft)² (Height)

            86.2 ft³  =  π (7.84 ft²) (Height)

           Height  =  (86.2 ft³) / (7.84 π ft²)

                        =         3.5 ft

</span>
5 0
3 years ago
Which phrase best defines erosion a) chemically breaking rocks apart b) physically breaking rocks apart c) moving bits of rock f
Eddi Din [679]

Answer:

C) moving bits of rock from place to place

Step-by-step explanation:

A is chemical weathering, b is mechanical weathering, and d is cementation

5 0
3 years ago
2/3c=18 what does c equal to
Serjik [45]

Answer: 27

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
On a piece of paper, use a protractor to construct right triangle DEF with DF=8 cm, m∠E=30°, and m∠F=90°.
weqwewe [10]

Answer:

DE=16

Step-by-step explanation:

I took the test and it's right!

6 0
2 years ago
5/6 + 3j = -2/3 I need to find the value of j
weeeeeb [17]

5/6 + 3j = -2/3

Multiply all terms by 3.

5/2 = 3j - 2

Multiply all terms by 2.

5 = 6j - 4

Add 4 to both sides.

9 = 6j

Divide both sides by 6.

j = 1.5

8 0
3 years ago
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