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2 years ago

Find x ????????????????????????

Mathematics

1 answer:

Virty [35]2 years ago

6 0

Answer:

here

h=x,p=15,b=9

using pythagoras theorem

h^2=p^2+b^2

x^2=15^2+9^2

x^2=225+81

x^2=306

x=3 √34 is the answer

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A family of seven people needs 45 Kg rice for a week how much rice does the family need for a month

Roman55 [17]

Answer:

there are 4 weeks in a month so if 45 kg is for 1 week then

Step-by-step explanation:

x=4 (weeks in a month)

=45x

=180 kg of rice

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2 years ago

morris bought 2 in a half feet of felt the price of felt was $3.90 per yard. how much did morris pay for his felt

STatiana [176]

Answer:

$9.75

Step-by-step explanation:

$3.90 per yard

So $3.90 for 1 yard = $3.90

$3.90 for 2nd yard =$3.90

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2 years ago

Prove that: (12^13–12^12+12^11)(11^9–11^8+11^7) is divisible by 3, 7, 19, and 37. The answer should be like: x^b*3*7*19*37. Also

n200080 [17]

Answer:

Step-by-step explanation:

Given (12^13–12^12+12^11)(11^9–11^8+11^7),

(12^13–12^12+12^11)(11^9–11^8+11^7) =

[(12^12)12 – 12^12 + 12^11][(11^8)11 – 11^8 + 11^7)

[(12^12)(12 – 1) + 12^11][(11^8)(11 – 1) + 11^7] =

(12^12(11) + 12^11)(11^8(10) + 11^7) =

(12^11(12x11) + 12^11)(11^7(11x10) + 11^7) =

[(12^11)(12x11 + 1)][(11^7)(11x10 + 1)] =

[(12^11)x(11^7)](12x11 + 1)(11x10 + 1) =

[(12^11)x(11^7)](133 x 111) =

[(12^11)x(11^7)](14763) =

[(12^11)x(11^7)](3x7x19x37)

From here, it is clear that the given number is divisible by 3, 7, 19 and 37.

6 0

3 years ago

On a line segment, M is between L and N. If MN = 10.4 and LN = 19.4, what is LM?

algol [13]

Answer:

GOOGLE

Step-by-step explanation:

GOOGLE MY HUMAN

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3 years ago

Find the simplest expression for the perimeter of the triangular roof truss.

REY [17]

Perimeter of triangle = all sides added up
3a + 4 + 2a - 7 + 9a + 11

now add like terms
3a + 2a + 9a = 5a + 9a = 14a

4 - 7 + 11
= -3 + 11 = 8

so we have 14a + 8
as our simplest expression

6 0

3 years ago