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3 years ago

I need a better understanding of this. Help please!

Mathematics

2 answers:

kow [346]3 years ago

6 0

I did 4.8 times 60 and got 288.
Hoped it helped.
Good Luck.

Anvisha [2.4K]3 years ago

4 0

The answer is got was multiplying 4.8 times 60 and I got 288. Btw we have the same computer lol

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Solve this please x^4-15x^3+56x

ladessa [460]

Answer:

x2(x−8)(x−7)

Step-by-step explanation:

Factor

Factor x2 out of x4−15x3+56x2.

x2(x2−15x+56)

x2(x−8)(x−7)

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3 years ago

A just answer pls I gotta write random words bc the question is a pic

stealth61 [152]

Answer:

$84

Step-by-step explanation:

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3 years ago

The Split Ends Salon orders 10 cases of hand-made hairbrushes.

r-ruslan [8.4K]

Answer:

it would take 65 hours to produce all of the order.

Step-by-step explanation:

1. you already would figure out that 26 hours=4 cases or 6.5 hours per case of hairbrushes.

2. You would figure out that 26+26 is 52 so 52 hours for 8 cases

3. Then you remember u have 8 cases of hairbrushes now. Set up a mental equation where you can solve in your mind: if I need 10 cases, but have figured out I only calculated 8, how much more would I still need to meet the order?

4. After mentally solving the hypothetical problem, you then would conclude you needed 2 more cases from 8 to equal 10.

5. you then divide 26 hours per 4 cases and you get 13 hours for 2 cases.

6. finally you multiply 26+26+13 which you would get 65 as the answer

7 0

3 years ago

Z to the 2nd+11 Z equals -21 over 4

VashaNatasha [74]

If you're asking us to solve for Z...
z² + 11z = -21/4
4z² + 44z + 21 = 0
Enter... *drumroll* the quadratic equation!
$z = \frac{-b +- \sqrt{b^{2}-4ac}}{2a}$
(that's a plus or minus, sorry)
$z = \frac{-44 +- \sqrt{44^{2}-4(4)(21)}}{2(4)}$
x = -0.5 or -10.5

Does this help? Is it too complicated? Do you have any questions?

7 0

4 years ago

For every 140 feet that kelly rides on her bicycle, the wheels turn 20 times. About how many times do the wheels turn in 5 miles

o-na [289]

Answer:

Approximately 3771 times

Step-by-step explanation:

Let x be the number of times the wheels turn in 5 miles.

Given that, 1mile = 5,280ft

Thus, 5 miles=5 × 5,280ft=26400ft

From the question ,we can deduce the following ratios :

140 ft : 20 mins