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Nadusha1986 [10]
3 years ago
15

James baked 5 1/4 dozen peanut butter cookies and 4 5/6 dozen oatmeal cookies for a bake sale what was the number of dozen cooki

es he baked
Mathematics
1 answer:
Doss [256]3 years ago
3 0

Answer:

10\frac{1}{12} dozen

Step-by-step explanation:

\frac{1}{4} × 3 = \frac{3}{12}

\frac{5}{6} × 2 = \frac{10}{12}

\frac{3}{12}  + \frac{10}{12}  = \frac{13}{12}

\frac{13}{12} is equal to 1\frac{1}{12}

5 + 4 = 9 + 1\frac{1}{12} = 10\frac{1}{12} dozen


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Solve this quadratic equation by completing the square <br> x^2+6x=18
cestrela7 [59]

Answer:

( x + 3 )² - 27

Step-by-step explanation:

x² + 6x = 18

→ Minus 18 from both sides to get a quadratic equation

x² + 6x - 18

⇒Completed square from is ( x + a )² + b

⇒The value of 'a' will always be half the 'b' value in the equation

ax² + bx + c

→( x + 3 )² + b

Expand out the equation to find 'b'

x² + 6x + 9

We have do something to get from 9 to - 18 which -27

So the answer is ( x + 3 )² -27

4 0
3 years ago
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Step-by-step explanation:

7.5 divided by 1.5 is equal to 5

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2 years ago
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Determine if the expression 9x^-2 is a polynomial or not. If it is a polynomial, state
Andrej [43]

Answer:

9x⁻²  is not a polynomial

Step-by-step explanation:

A polynomial function is a function that involves non-negative integer powers of x such as a quadratic, cubic etc.

A polynomial is a function written in the form of ;

f{x} =aₙxⁿ+aₙ₋₁xⁿ⁻¹+-------+a₂x²+a₁x+a₀

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9x⁻² ----in this case, the power is negative thus this is not a polynomial.

5 0
2 years ago
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If f(1)=10 and f(n)=-5f(n-1)-2 then find the value of f(4)
Flura [38]

Answer:

\large\boxed{f(4)=-1292}

Step-by-step explanation:

f(n)=-5f(n-1)-2\\\\f(1)=10\\\\f(2)=-5f(2-1)-2=-5f(1)-2\\\text{put}\ f(1)=10:\\f(2)=-5(10)-2=-50-2=-52\\\\f(3)=-5f(3-1)-2=-5f(2)-2\\\text{put}\ f(2)=-52\\f(3)=-5(-52)-2=260-2=258\\\\f(4)=-5f(4-1)-2=-5f(3)-2\\\text{put}\ f(3)=258\\f(4)=-5(258)-2=-1290-2=-1292

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3 years ago
Find the value of x in the picture
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Answer:

the value of x is 10.

Step-by-step explanation:


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