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natulia [17]
2 years ago
9

Determine if the three lengths given will be able to construct a triangle or not.

Mathematics
2 answers:
TEA [102]2 years ago
6 0

Answer:

No

No

Yes

No

Yes

Explanation

borishaifa [10]2 years ago
5 0

Answer:

1) No

2) No

3) Yes

4) No

5) Yes

Step-by-step explanation:

All three sides must add with another to be greater than the last side (Not sure if that makes sense ._.)

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Find the third term of (x^2 + 2)^4.
attashe74 [19]

Answer:

Step-by-step explanation:

in~the~expansion~of~(x+a)^n\\T_{r+1}=ncr x^{n-r}a^r\\r+1=3\\r=3-1=2\\n=4\\4c2=\frac{4 \times 3}{2 \times 1} =6\\T_{2}=4(x^2)^{4-2}(2)^2\\=16(x^2)^2\\=16x^4

7 0
3 years ago
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How many gallons of a 30% salt solution must be added to 40 gallons of a 12% salt solution to obtain a 20% solution?
Sati [7]
Let’s call the number of gallons of 30% solution “x”. If we mix together 40 gallons and x gallons of solution, we’re going to come out with a total of 40 + x gallons of that 20% solution. Mathematically, this is

40(12%) + x(30%) = (40 + x)(20%)

With the percents as decimals:

40(0.12) + x(0.3) = (40 + x)(0.2)

Simplifying, we have:

4.8 + 0.3x = 8 + 0.2x

Collecting the x terms on one side and the constants on the other:

0.1x = 3.2

And multiplying both sides by 10 to find x:

x = 32

So, you’ll need 32 gallons of 30% solution to yield 40 + 32 = 72 gallons of 20% solution.
7 0
3 years ago
8x + 4 = 6x + 6<br> Help Help Help Help Help
Inessa [10]

Answer:

12x

Step-by-step explanation:

6x +6+ 12x 8x +4 +12x

3 0
3 years ago
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Solve for x 4(2x+9)=-44+8
Andreas93 [3]

Answer:

x=-9

Step-by-step explanation:

distribute 4 into the parentheses

8x+36=-44+8

add -44+8

and u get 8x+36=-36

subtract the 36 on both sides and leave u with

8x=-72

divide 8 on both sides

and ur answer is -9

i dont think this make sense but hope this helps

5 0
3 years ago
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I need help with this?
Dmitrij [34]

el triangulo que forma el radio es un triangulo equilátero y por lo tanto el lado del hexágono sera  de la misma medida que el radio:

lado = radio = 2 cm

como hay 6 lados, lo multiplicamos por 6 :

2x6 = 12 cm

entonces el perímetro del hexágono es 12 cm

Saludos¡

6 0
3 years ago
Read 2 more answers
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