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3 years ago

Number of diagonals in a 10 sided figure are

Mathematics

1 answer:

Alex3 years ago

8 0

Answer:

35 diagonals in decagon

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Select all equations that have two solutions. a x^2=16 b 4x^2=0 c x^2=-16 d 3x+2=14 e x^2-1=24 f (x+8)(x-8)=0

never [62]

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a )

${x}^{2} = 16$

$x = ± \: 4$

Two solutions.

_________________________________

b )

$4 {x}^{2} = 0$

$x = 0$

One solution .

_________________________________

c )

${x}^{2} = - 16$

$No \: \: solution.$

_________________________________

d )

$3x + 2 = 14$

$x = 4$

One solution.

_________________________________

e )

${x}^{2} - 1 = 24$

${x}^{2} = 25$

$x =± \: 5$

Two solutions.

_________________________________

f )

$(x + 8)(x - 8) = 0$

$x = - 8 \: \: or \: \: x = 8$

Two solutions .

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5 0

3 years ago

Divide 6K2 - 15k-5 by 3k

icang [17]

Answer:

Step-by-step explanation:

6k^2

------- = 2k; and:

-15k

------- = -5

-5 cannot be evenly divided by 3k, so there's a remainder instead.

6k^2 - 15k - 5

-------------------- = 2k -5 with remainder -5.

4 0

4 years ago

Read 2 more answers

Evaluate the expression when m=4 and n=48

andrew-mc [135]

What’s the expression

3 0

3 years ago

Gloria bought each of her three younger siblings a movie ticket.find the total cost of the movie tickets if each ticket cost $9.

jeka94

Answer:

The answer is 29.25

Step-by-step explanation:

Using distributive property, the equation would be 3(9.75).

9.75*1+9.75*1+9.75*1=29.25

4 0

3 years ago

Please help me find the answer thank you

mario62 [17]

Answer:

d = 1

Step-by-step explanation:

1.5 - 0.5 = 1

If you find my answer helpful, please consider marking it Brainliest

And if you still have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)

5 0

3 years ago