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4 years ago

DANielle is solving 8/9÷4 find her mistake and correct it

1 answer:

6 0

$\frac{8}{9} \div 4$
Use the 4 reciprocal, which means to flip the 4, and then times
$\frac{8}{9} \times \frac{4}{1}$
$\frac{8}{9} \times \frac{1}{4} = \frac{8}{36} = \frac{2}{9}$

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Rewrite the function to determine whether it represents exponential growth or exponential decay

mihalych1998 [28]

Answer:

Growth.

Step-by-step explanation:

The growth factor is 1.18 ( > 1) and the exponent is > 0.

5 0

3 years ago

Ms.Peralta's friend Mike is a construction worker. Mike gets paid $15 an hour. After working 9 hours he gets paid 1.25 times his

asambeis [7]

Answer:

Mike made $ 200.63 last Friday.

Step-by-step explanation:

Since Ms. Peralta's friend Mike is a construction worker who gets paid $ 15 an hour, and after working 9 hours he gets paid 1.25 times his hourly rate, and last Friday Mike worked for 5 hours - took an 1 hr and 15 minute break for lunch (does not count toward his work hours) - and worked for an additional 7.5 hours, to determine how much money did Mike make last Friday the following calculation must be performed:

5 + 7.5 = 12.5

12.5 - 9 = 3.5

9 x 15 + (3.5 x (15 x 1.25)) = X

135 + 3.5 x 18.75 = X

135 + 65.625 = X

200.63 = X

Therefore, Mike made $ 200.63 last Friday.

4 0

3 years ago

On a coordinate grid, point T is at (2, −4) and point S is at (2, 6). The distance (in units) between points T and S is ______.

-BARSIC- [3]

The answer is 10
This is because both points have the same x value, which is 2, which means the distance between them is a straight line. That means that we can simply find the distance between the y values, and -4 to 0 is 4 units, and 0 to 6 is 6 units, so 4 + 6 = 10.

I hope this helps!

6 0

3 years ago

Read 2 more answers

craig likes to collect records. last year he had 10 records in his collection. now he has 15 records. what is the percent increa

schepotkina [342]

Answer:

His collection increased in a 20%.

Step-by-step explanation:

If 100% represents 10 records, what percentage would be for 12 records?

x = 12 100% / 10 = 120%

So, if we subtract 120% - 100%, it's gonna result in a difference of 20%, which means that 12 represents a 20% more, or his collection increased in a 20%.

7 0

3 years ago

Solve using the quadratic formula (you must show work) 52 − 2 + 1 = 0

Veseljchak [2.6K]

Answer:

see below

Step-by-step explanation:

we have

$5x^2-2x+1=0$

and the quadratic equation is

$ax^2+bx+c=0$

so we can see that

$a=5\\\\b=-2\\\\c=1$

and the quadratic formula is

$x=\frac{-b+-\sqrt{b^2-4ac} }{2a}$ it should go this symbol ± instead of +-

so we insert each value

$x=\frac{-(-2)+-\sqrt{(-2)^2-4(5)(1)} }{2(5)} \\\\x=\frac{2+-\sqrt{4-20} }{10}\\\\x=\frac{2+-\sqrt{-16} }{10} \\\\x=\frac{2+-4i}{10} \\\\x_1=\frac{2(1+2i)}{2*5} \\\\x_1=\frac{1+2i}{5} \\\\x_2=\frac{2(1-2i)}{2*5} \\\\x_2=\frac{1-2i}{5}$

i don't know if you already know about imaginary numbers if you do then the answer is all the work

if you don't know, well just go until

$x=\frac{2+-\sqrt{-16} }{10}$

and say there is no answer to this, because negatives don't have square roots

6 0

3 years ago