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Georgia [21]
2 years ago
7

What is the sum of the polynomials?

Mathematics
2 answers:
rewona [7]2 years ago
8 0
7x^2-9x-5 hope it helps
Lorico [155]2 years ago
3 0
A. is the answer look at the attached photo

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Multiply.
Elena-2011 [213]

Answer:

5/1.6 -2.5=<u>0.625</u>

3 0
3 years ago
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David can paint a fence in ten hours. Alex can paint the same fence in eight hours. If
xxTIMURxx [149]

Answer:

40/9

Step-by-step explanation:

Use the work formula, \frac{1}{A} + \frac{1}{B} = \frac{1}{T}, where A is the amount of time it takes one person, B is the amount of time it takes another person, and T is the time it takes for them to work together.

Plug in the times for David and Alex alone:

\frac{1}{10} + \frac{1}{8} = \frac{1}{T}

Find the least common denominator, which is 40.

\frac{4}{40} + \frac{5}{40} = \frac{1}{T}

\frac{9}{40} = \frac{1}{T}

Cross multiply and solve for T:

9T = 40

T = 40/9

So, if they worked together, it would take them 40/9 hours

3 0
3 years ago
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Last week, Leon bought 8 pizzas and 13 cakes
romanna [79]
P = pizza and c =cakes

Last week: 8p + 13c = 134
Today: 28p + 4c = 220

Let’s take the formula for today and subtract 28p from each side to isolate the 4c.

4c = 220 - 28p

Now divide each side by 4

c = (220 - 28p)/4
Simplify to c = 55 - 7p

Now go to the formula for last week, substitute the c for 55-7p

8p + 13(55 - 7p) = 134
8p + 715 - 91p = 134

Simplify to 715 - 83p = 134

Let’s add 83p to each side.

715 = 134 + 83p

Subtract 134 from each side

581 = 83p

Divide each side by 83

p = $7
5 0
3 years ago
Organization Behaviour is a field of study backed by following for growing concern for people at workplace.
slega [8]

Answer:

All given option

Step-by-step explanation:

the answer is All given option hahahahajahahahahahahajaja

3 0
3 years ago
Sarah has 27
Setler79 [48]
Sarah can make 2, however she will have 3 feet leftover
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3 years ago
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