3 years ago

[(8X9)-(6X7)]-15 ???????????

Mathematics

2 answers:

olga2289 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

8x9=72

6x7=42

72-42=30

30-15=15

marusya05 [52]3 years ago

6 0

Answer:

Your answer is 57

Step-by-step explanation:

Simplify the expression.

Hope this helped!!!!

You might be interested in

Given the polynomial 2x3 + 18x2 − 18x − 162, what is the value of the coefficient 'k' in the factored form?2x3 + 18x2 − 18x − 16

s344n2d4d5 [400]

Answer:

$k=3$

Step-by-step explanation:

Let

$f(x)=2x^3+18x^2-18x-162$

We factor 2 to obtain;

$f(x)=2(x^3+9x^2-9x-81)$

We factor the polynomial within the parenthesis by grouping.

$f(x)=2(x^2(x+9)-9(x+9)$

$f(x)=2(x^2-9)(x+9)$

$f(x)=2(x^2-3^2)(x+9)$

We apply difference of two squares on the second factor: $x^2-3^2=(x-3)(x+3)$

$f(x)=2(x+3)(x-3)(x+9)$

We now compare to;

$f(x)=2(x+k)(x-k)(x+9)$

It is now obvious that $k=3$

6 0

3 years ago

You buy 6 apples for $33. WHat is the cost of 10 pounds of apples

Mariana [72]

10 lbs of apples will cost $55

How? Well...

First, you would need to find the unit rate, which is 5.5
You find the unit rate by simply dividing 33 by 6. Next, after you found your unit rate, you're going to multiply that by 10. We now know that 10 x 5.5= 55. Therefore, you will need $55 for 10 lbs of apples.

5 0

3 years ago

+3 + 3x2 – 2X-6<br> is this a prime polynomial

Rashid [163]

Yeah mate, but I don’t know if you need to specifically say but it’s actually an Amazon Prime next day delivery polynomial

8 0

2 years ago

Read 2 more answers

20 points

blsea [12.9K]

The answer I think is 2+7+0.15x_>15

6 0