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Alchen [17]
3 years ago
12

3a-3b+4c=-23 a+2b-3c=25 4a-b+c=25

Mathematics
1 answer:
romanna [79]3 years ago
4 0

Answer:

21

Step-by-step explanation:

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The shortest side of an isosceles triangle is 26 cm less than twice as long as the other sides. The perimeter of the triangle is
olya-2409 [2.1K]

Answer:

22cm,24cm,24cm

Step-by-step explanation:

Let us call one of the other sides x

the shortest side = 2x-26

in an isosceles, 2 sides are equal (x in this case)

so we now have sides of x,x and 2x-26

form an eqution from this.

4x-26=70

4x=96

x=24

24 x 2 = 48 - 26 = 22

thus, the shortest side is 22cm and the other sides are both 24cm

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3 years ago
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Given the functions, f ( x ) = x - 8 and g ( x ) = x2 x - 1, perform the indicated operation. when applicable, state the domain
kondor19780726 [428]

(fg)(x)= x³ - 7x² - 9x + 8

domain is (-∞,∞)

Given: f(x)= x-8, g(x)= x² +1x - 1

To find (fg)(x) we multiply f(x) and g(x)

(fg)(x) = f(x) * g(x)

(fg)(x)= (x-8) (x²+x-1)

(fg)(x)= x³ + x² - x - 8x² - 8x +8

(fg)(x)= x³  - 7x²  - 9x + 8

we know, domain for all cubic function is set of all real numbers

domain is (-∞,∞)

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6 0
1 year ago
Convert 45°C to Fahrenheit using the formula F = 9/5 C + 32.
Mice21 [21]
9/5= 1.8
1.8*45= 81
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The answer is 113°F
6 0
3 years ago
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Gente quanto é
Aloiza [94]
G) X=4
H) X=2
I) X=-3
J) X=2
8 0
3 years ago
solve this using pythagorean theorem please and give me the right answer and i will give YOU brainliest and a like in return.
jarptica [38.1K]

Answer:

answer should be 4.3

Step-by-step explanation:

8.9^(2)-7.8^(2)

=18.37

\sqrt(18.37)

=4.28602379

and round to the nearest tenths should give you 4.3

6 0
3 years ago
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