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Dmitry_Shevchenko [17]
3 years ago
15

What is the value of q? 2/5 2/14

Mathematics
1 answer:
daser333 [38]3 years ago
7 0

Answer:

2√14 prob I'm not 100% sure

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The area of a rectangle is 256.5m2. if the length is 18m, what is the perimeter of the rectangle
Vlad [161]
256.5/18= 14.25

(14.25x2)+(18x2)= 64.5m
4 0
3 years ago
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What is 50g as a percentage of one kg?​
Lelechka [254]

Answer:

5 %

Step-by-step explanation:

1000 g = 1 kg

50 kg = 0.05 kg

0.05 = 5%

Therefore, 50 g as a percentage of 1kg is 5%.

3 0
3 years ago
Simplify the following surd expressions
olasank [31]

Answer:

<h2>see the answers ⤵️</h2>

Step-by-step explanation:

<h3>to understand the solving steps you need to know about</h3>
  • algebra
  • PEMDAS
  • redical
<h3>adding or subtracting with redical experience is nothing but algebraic addition or subtraction</h3><h3>let's solve:</h3>

a)7 \sqrt{3}  - 2 \sqrt{3}  +  \sqrt{3}  - 3\sqrt{3}  \\ 8 \sqrt{3}  - 5 \sqrt{3}  \\ 3 \sqrt{3}

b)5 \sqrt{7}   + 4 \sqrt{7}   - 8  \sqrt{7}  \\ 9 \sqrt{7}  - 8 \sqrt{7}  \\  \sqrt{7}

6 0
3 years ago
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Which reason justifies the following statement?
amid [387]

Answer:

(A) Complements of the same  angle are congruent.

Step-by-step explanation:

Since, ∠CEF is complementary to ∠DCF, therefore

∠CEF+∠DCF=90°                                 (1)

Also, ∠CEG=∠CEF+∠FEG

⇒90°=∠CEF+∠FEG                              (2)

Therefore, from(1) and (2), we get

∠CEF+∠DCF=90°    

∠CEF+∠FEG=90°

Subtracting both the equations, we get

  ∠DCF-∠FEG=0

∠DCF=∠FEG.

Hence, ∠DCF≅∠FEG by the rule: Complements of the same  angle are congruent.

3 0
3 years ago
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The cable railway was driven by a 8 foot diameter drum that turned 13 revolutions per minute. Find the linear velocity of the ca
slava [35]

Answer:

The linear velocity of the cable ≅ 327 feet per minute.

Step-by-step explanation:

Given that the diameter of the drum = 8 feet

Radius of the drum = \frac{diameter}{2}

           = \frac{8}{2}

           = 4 feet

Radius of the drum = 4 feet

1 revolution = circumference of the drum

circumference of the drum = 2\pir

where r is the radius.

So that;

circumference of the drum = 2 x \frac{22}{7} x 4

                                             = \frac{176}{7}

                                            = 25.143

circumference of the drum = 25.143 feet

The linear velocity of the cable = (13 x 25.143) feet per minute

                               = 326.859 feet per minute

The linear velocity of the cable ≅ 327 feet per minute.

8 0
3 years ago
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