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3 years ago

9

Two-digit natural numbers are formed, with replacement, from the digits 0 through 9.

1 answer:

Karo-lina-s [1.5K]3 years ago

4 0

Just do 99-45 and you would get 54. 54 two digit numbers are greater than 45.

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It costs $6.45 to buy 5 songs on I-tunes. How much does it cost to buy 20 songs?

babunello [35]

Answer:$25.80

Step-by-step explanation:

6.45/5 = 1.29

1.29 x 20 =25.80

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3 years ago

Read 2 more answers

Use the quadratic formula to solve x^2-4x+3. Show your work. Then describe the solution

mars1129 [50]

Quadratic formula is x=(-b+-sqrt(b^2-4ac))/(2a)

a= 1, b=-4, and c=3

Therefore, x=(-(-4)+-sqrt((-4)^2-4(1)(3))/(2(1))

Solve for both the plus and minus equations; the answers will be the roots to the quadratic equation.

4 0

3 years ago

Can you help meee get this ?

nikdorinn [45]

Answer: y=4/5x-2 or y=4/5x+(-2)

Step-by-step explanation:

The formula for slope-intercept form is y=mx+b.

To find the slope, we can use the formula $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ and plugging in the points given.

$m=\frac{6-2}{10-5} =\frac{4}{5}$

We know our slope is 4/5. We can plug this into our slope-intercept form and then plug in a point to find b, y-intercept.

$y=\frac{4}{5} x+b$

$2=\frac{4}{5}(5)+b$

$2=4+b$

$b=-2$

We know the y-intercept is -2.

THe final equation is y=4/5x-2 or y=4/5x+(-2).

4 0

3 years ago