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o-na [289]
3 years ago
5

Radical expressions Help pls multiple choice

Mathematics
1 answer:
Ann [662]3 years ago
8 0

Answer:

4th option (sqrt(10))/2

Step-by-step explanation:

\frac{5}{\sqrt{10} }  *  \frac{\sqrt{10}}{\sqrt{10} } \\  \frac{5\sqrt{10}}{10} \\\\frac{\sqrt{10}}{2}

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R minus the sum of 4 and p equals
UkoKoshka [18]

Answer:

r - (4 + p)

Step-by-step explanation:

{that's how you write it if that's what you are asking}

4 0
3 years ago
NO LINKS!!!!!
8090 [49]

9514 1404 393

Answer:

  5x^2 +10x = -5

Step-by-step explanation:

The equation will have one solution when the discriminant is zero.

In standard form, the equation is ...

  ax^2 +10x -c = 0

The discriminant of the equation ax^2+bx+c=0 is  ...

  b^2 -4ac

so the discriminant of your equation is ...

  10^2 -4a(-c) = 100 +4ac

We want that to be zero, so we require ...

  100 +4ac = 0

  25 +ac = 0

  ac = -25

Any pair of values of 'a' and 'c' that have a product of -25 will satisfy the requirement. As you state, one possible pair is a = 5 and c = -5. Putting these values into the given equation makes it ...

  5x^2 +10x = -5 . . . . . the equation with a=5, c=-5

_____

<em>Additional comment</em>

Your problem statement does not require that 'a' be non-zero. If <em>a=0</em>, then the equation will have one real solution for <em>any value of c</em>.

If you restrict the solutions to integers, then possibilities include ...

  (a, c) = (1, -25), (5, -5), (25, -1), (-25, 1), (-5, 5), (-1, 25)

6 0
2 years ago
Debby deposits 25% of the money that she earns each week in a savings account. If Debby earns $72 each week, how much money will
Aleksandr-060686 [28]

Answer:

$18.75

Step-by-step explanation:

25% is 1/4 of 100%

72 / 4 = 1$8.75

3 0
3 years ago
Find two numbers the quotient is between 53÷3
nlexa [21]
53/3
we can't divide this term perfectly because 53 is not 3's double number.
5 0
3 years ago
A brother and sister share out their collection of 5000 stamps in the
yaroslaw [1]

Answer:

1875

Step-by-step explanation:

After sharing in the ratio 5:3, the brother has

5000/(5+3) x 5 = 3125

Next, he shares with his friend in the ratio 3:1:1, thus

3125/(3+1+1) x 3 = 1875

7 0
3 years ago
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