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3 years ago

Evaluate the expression and enter your answer below.

Mathematics

2 answers:

jeka943 years ago

7 0

Answer:

The answer is 9.

Step-by-step explanation:

PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction)

3x10+15-6^2

3x10+15-36

30+15-36

45-36

lozanna [386]3 years ago

3 0

9. Feel free to clarify if you’re unsure

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I tried to figure it out but i can't. i need to show the work and i don't know how to do it.

Andreas93 [3]

Integration Formula:

$\int\limits {x}^{n} \, dx =\frac{x^{n+1}}{n+1} + C$

Integrate each term:

$\int\ {x^{2}} \, dx = \frac{x^{3}}{3}$

$\int\ {x} \, dx =\frac{x^2}{2}$

$\int\ {5} \, dx = 5x$

$\int\ {x} \, dx =\frac{x^2}{2}$

$\int\ {2} \, dx = 2x$

Altogether this becomes:

$\frac{\frac{x^3}{3} - \frac{x^2}{2}-5x }{ \frac{x^2}{2}+2x}$

Your limits are 1 and 2. Substitute both numbers into the equation and minus them from each other.

x = 2:

$\frac{\frac{2^3}{3} - \frac{2^2}{2}-5(2) }{ \frac{2^2}{2}+2(2)}$

x = 1:

$[tex]\frac{\frac{1}{3} - \frac{1}{2}-5 }{ \frac{1}{2}+2}$ [/tex]

x = 2:

$\frac{\frac{8}{3} - \frac{4}{2}-10 }{ \frac{4}{2}+4}$

x = 1: $\frac{\frac{8}{3} - 2-10 }{ 2+4}$

-1.212317928

Now convert all the answers to integers and see which one matches -1.212317928:

Because it's a negative number, we know it can only be A or B.

(A) = -1.212317928

(B) = -1.19047619

The answer is A: $-\frac{3}{2} +In\frac{4}{3}$

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3 years ago

Help me this is due tomorrow

Tresset [83]

Answer:

10.50

Step-by-step explanation:

in total she would have spent 10.50 because 8.75 for the peaches and 1.75 for the ice cream sandwich

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Westkost [7]

That is 62x9 which is 9x2=18 and 9x60=540 so you then add 540+18=558 chairs

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3 years ago

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astraxan [27]

-9, it is between -2 and -10 and it is the least possible integer

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wolverine [178]

Answer:

Step-by-step explanation:

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