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3 years ago

Find each sum or difference -8/35+2/5=

Mathematics

2 answers:

Alexxandr [17]3 years ago

8 0

Answer:

6/35

Step-by-step explanation:

change 2/5 to 14/35 so the denominators are even.

after that you get -8/35+14/35

then you get 6/35

Lena [83]3 years ago

6 0

First find the common denominator.

-8/35 + (2)(7)/(5)(7) = -8/35 + 14/35

-8/35 + 14/35 = 6/35

Answer: 6/35

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densk [106]

Answer:

y = -16

Step-by-step explanation:

y = -3(12) + 20

y = -36 + 20

y = -16

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3 years ago

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julia-pushkina [17]

Answer:

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Step-by-step explanation:

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3 years ago

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Find the Total surface area of a cone if it's slant height is 21m and diameter of it's base is 24m.

kherson [118]

<h3><u>Answer :- </u></h3>

The total surfAce area of cone is <u>1244.57m².</u>

<h3><u>Step-by-step</u><u> </u><u>explanation</u><u> </u><u>:</u><u>-</u><u> </u></h3>

The total surface area of cone..

<h3><u>Solution :- </u></h3>

Given that ,

The slant height of the cone = 21m.
Diameter of it's base = 24m.

<h3><u>♦</u><u> </u><u>Radius is </u></h3>

<u>=</u>> Diameter / 2

=> 24 / 2

=> 12m

<u>Total surface area of cone = πr ( r + L ) .</u>

<h3><u>Where</u><u> </u><u>we </u><u>know</u><u>,</u></h3>

π = 22/7
r = Radius ( radii )..
L = Slant height.

<h3>According to the question :- </h3>

The total surface of cone is,

<u>=> Total surface area = πr { r + L } ..</u>

$= \frac{22}{7} \times 12 \times (12 + 21)$

$= \frac{22}{7} \times 12 \times 33$

$= (22 \times 12 \times 33) \div 7$

$= (726 \times 12) \div 7$

$= 8712 \div 7$

$= 1244.57 {m}^{2}$

• Therefore , The total surface area of cone is <u>1244.57m².</u>

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2 years ago

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Scorpion4ik [409]

Simplify the expression 5(x-3)(x^2+4x+1)

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3 years ago

BER33333 Solving a word problem with two unknowns using a linear...

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Answer:

Step-by-step explanation:

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3 years ago