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Anika [276]
2 years ago
14

PLEASE HELP !! ILL GIVE BRAINLIEST !!

Mathematics
2 answers:
ra1l [238]2 years ago
6 0

Answer:

2nd one ( Efc & dcf ) & 4th one (Bcf & gfc) .

Step-by-step explanation:

Hope it helps .

zhenek [66]2 years ago
3 0

Answer:

BCF and GFC

EFC and DCF

because they are alternate

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Find the value of the expression (-101)+102+(-103)+104+...+(-199)+200.
Sladkaya [172]

Examine the series in consecutive pairs.

-101 + 102 = 1

-103 + 104 = 1

-199 + 200 = 1

The second number of the pairs go from 102 to 200 so there are (200 -102) / 2 + 1 = 49 + 1 = 50 pairs

Answer = the value is 1 * 50 = 50

5 0
3 years ago
If a cylindrical vase has a 63 cubic centimeter volume an a cone has the same height and radius as the cylinder what is the volu
VladimirAG [237]

Answer:

21cm^{3}

Step-by-step explanation:

According to the problem, calculation of given data are as follows,

Volume of cylindrical vase = 63cm^{3}

As, Cone has same height and radius as cylinder, than we can calculate volume of cone by using following formula,

Volume of cone = \frac{1}{3} × Volume of cylindrical vase

By putting the value, we get

Volume of cone = \frac{1}{3} × 63

Volume of cone = 21cm^{3}

8 0
2 years ago
Solve this identity, where the angles involved are acute angles.
Bas_tet [7]

We have proven that the trigonometric identity [(tan θ)/(1 - cot θ)] + [(cot θ)/(1 - tan θ)] equals 1 + (secθ * cosec θ)

<h3>How to solve Trigonometric Identities?</h3>

We want to prove the trigonometric identity;

[(tan θ)/(1 - cot θ)] + [(cot θ)/(1 - tan θ)] = 1 + sec θ

The left hand side can be expressed as;

[(tan θ)/(1 - (1/tan θ)] + [(1/tan θ)/(1 - tan θ)]

⇒ [tan²θ/(tanθ - 1)] - [1/(tan θ(tanθ - 1)]

Taking the LCM and multiplying gives;

(tan³θ - 1)/(tanθ(tanθ - 1))

This can also be expressed as;

(tan³θ - 1³)/(tanθ(tanθ - 1))

By expansion of algebra this gives;

[(tanθ - 1)(tan²θ + tanθ.1 + 1²)]/[tanθ(tanθ(tanθ - 1))]

Solving Further gives;

(sec²θ + tanθ)/tanθ

⇒ sec²θ * cotθ + 1

⇒ (1/cos²θ * cos θ/sin θ) + 1

⇒ (1/cos θ * 1/sin θ) + 1

⇒ 1 + (secθ * cosec θ)

Read more about Trigonometric Identities at; brainly.com/question/7331447

#SPJ1

3 0
2 years ago
Read 2 more answers
HELPPP PLS SHOW WORK
expeople1 [14]

Answer:

61

Step-by-step explanation:

1. let the unknown be x

2. using theorem of Pythagoras that states the hypotenuse will be equal to the sum of the other two sides we can determine that 75=14+X

3. this implies that X=75-14

4. therefore X= 61

7 0
2 years ago
the monthly rent for an 800 square foot office is $975. For an 1100 square foot office, the rent is $1125. Write and solve a lin
IgorC [24]
 For 300 more square feet the rent is $150 more. 
Rent per additional square foot is 150/300 or 0.50. 
For an additional 400 square feet the rent is an additional 400(0.50) or $200. 
The rent for 1500 feet squared office is $1325.
6 0
3 years ago
Read 2 more answers
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