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mihalych1998 [28]
3 years ago
15

I need help on my math hw please and thanks!!

Mathematics
1 answer:
jarptica [38.1K]3 years ago
3 0
Attached solutions and work.

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Change the recurring decimal into fraction, 3.256
BabaBlast [244]

Answer:

405 / 125

Step-by-step explanation:

3.256

= 3256 / 1000

= 407 / 125

5 0
3 years ago
Which of the following sets could be the sides of a right triangle?
coldgirl [10]

Answer: Choice B) {3, 5, sqrt(34)}

=====================================

Explanation:

We can only have a right triangle if and only if a^2+b^2 = c^2 is a true equation. The 'c' is the longest side, aka hypotenuse. The legs 'a' and 'b' can be in any order you want.

-----------

For choice A,

a = 2

b = 3

c = sqrt(10)

So,

a^2+b^2 = 2^2+3^2 = 4+9 = 13

but

c^2 = (sqrt(10))^2 = 10

which is not equal to 13 from above. Cross choice A off the list.

-----------

Checking choice B

a = 3

b = 5

c = sqrt(34)

Square each equation

a^2 = 3^2 = 9

b^2 = 5^2 = 25

c^2 = (sqrt(34))^2 = 34

We can see that

a^2+b^2 = 9+25 = 34

which is exactly equal to c^2 above. This confirms the answer.

-----------

Let's check choice C

a = 5, b = 8, c = 12

a^2 = 25, b^2 = 64, c^2 = 144

So,

a^2+b^2 = c^2

25+64 = 144

89 = 144

which is a false equation allowing us to cross choice C off the list.

7 0
3 years ago
Of the following situations, which is best represented by the product<br> 5x(-3)?
anygoal [31]

Answer:

=-5x

Step-by-step explanation:

Remove   parentheses   (-a)=-a

= -5x.3

hoped i helped :) can i get brainiest

3 0
3 years ago
Helppp
Ugo [173]

Answer:

y = 3/4x + 7

Step-by-step explanation:

Put it in point-slope form:

y - 4 = 3/4(x - -4)

y - 4 = 3/4(x + 4)

y - 4 =3/4x + 3

y = 3/4x + 7

5 0
3 years ago
Solve the proportion:<br> -9/6 = 3/x
hichkok12 [17]

Answer:

-2

Step-by-step explanation:

6 0
3 years ago
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