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3 years ago

11

A combination lock requires three numbers from 1 to 25. how many combinations are possible? did you use the sum rule or the prod

uct rule? (note

1 answer:

Nostrana [21]3 years ago

4 0

25×3=75 combinations are possible

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Which expression is equivalent to sqrt 2x^5/18 assume x is greater than or equal to 0

Eddi Din [679]

Answer:

$\sqrt{\frac{2x^{5} }{18} }$ = $\frac{\sqrt{x^{5} } }{3}$

Step-by-step explanation:

Given expression

$\sqrt{\frac{2x^{5} }{18} }$

we know that the algebra formula

$\sqrt{\frac{a}{b} } = \frac{\sqrt{a} }{\sqrt{b} }$

$\sqrt{\frac{2x^{5} }{18} } = \frac{\sqrt{2} \sqrt{x^{5} } }{\sqrt{18} } = \frac{\sqrt{2} \sqrt{x^{5} } }{\sqrt{9} \sqrt{2} }$

= $\frac{\sqrt{x^{5} } }{3}$

7 0

3 years ago

Multiplying a number by 2 two and then dividing by 3 is the same as multiplying by what number?

bogdanovich [222]

Answer:

2/3

Step-by-step explanation:

Let x be number

Multiply by 2 = x * 2

Now, divide by 3 = 2x ÷ 3 = $\frac{2x}{3}$

So, this is same as multiplying 'x' by $\frac{2}{3}$

7 0

3 years ago

A triangle has vertices A(0,0),B(-3,6),and C(0,9). What are the coordinates of the triangle after a dilation with a scale factor

VLD [36.1K]

Answer: the triangle after the dilation has the vertices A' = (0,0), B' = (-9, 18) and C' = (0, 27)

Step-by-step explanation:

If the dilation is from the origin, then we need to multiplicate each point by the scale factor, then each one of the vertices change as:

A' = 3*A = 3*(0,0) = (0, 0)

B' = 3*B = 3*(-3, 6) = (-3*3, 6*3) = (-9, 18)

C' = 3*C = 3*(0,9) = (0, 3*9) = (0, 27)

Then the triangle after the dilation has the vertices A' = (0,0), B' = (-9, 18) and C' = (0, 27)

5 0

3 years ago

Can you people help me please

Dafna1 [17]

Answer:

A: 5/23

Step-by-step explanation:

First, lets take the total amount of coins in the jar: 8 nickels, 10 dimes, 6 quarters, and 22 pennies- for a total of 46 coins.

The question is asking what the odds of pulling a dime are.

Since there is 46 coins in the jar, you can just do a fraction and set it up like this:

<u>10</u>

46

From there just simplify the fraction, 10 / 2 = 5, 46 / 2 = 23. The problem can't be simplified further, so the answer you originally had was correct. 5/23

Hope this helps, give brainliest pls blah blah blah

8 0

3 years ago

What is the solution to the system of equations y=-3×-2 5×+2y=15

Anna007 [38]

Answer: x = - 19

y = 55

Step-by-step explanation:

y = - 3x - 2 (1)

5x + 2y = 15 (2)

substitute y = - 3x - 2 into equation (2)

equation (2) becomes

5x + 2 (-3x - 2) = 15

5x + ( - 6x - 4) = 15

opening the bracket

5x - 6x - 4 = 15

collecting like terms

5x - 6x = 15 + 4

-x = 19

x = - 19

substituting x = - 19 into equation 1

y = - 3x - 2

y = - 3 (-19) - 2

y = 57- 2

y = 55

6 0

3 years ago

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