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Harrizon [31]
3 years ago
10

Find the product (4x-3y)(2x+5)

Mathematics
1 answer:
Llana [10]3 years ago
5 0

Answer:

8x²−6xy+20x−15y

Step-by-step explanation:

(4x−3y)(2x+5)

=(4x+−3y)(2x+5)

=(4x)(2x)+(4x)(5)+(−3y)(2x)+(−3y)(5)

=8x²+20x−6xy−15y

=8x²−6xy+20x−15y

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What is the solution to this inequality?
Ksivusya [100]
The answer is D. 

X/-5 = 2
x =2 * -5
Therefore, x is less than -10
4 0
3 years ago
PLEASE HELP ME WITH THIS PROBLEM!!!!!!
Jet001 [13]

Answer:

n = 59

Step-by-step explanation:

I find it easiest to work problems of this kind using a graphing calculator. That way, extraneous solutions can be avoided. It seems to work well to rewrite the problem, so you're looking for a value of n that makes the result zero. Here, that would mean you want ...

... f(n) = √(n+5) -√(n-10) -1

_____

The solution by hand involves eliminating the root symbols. You do that by squaring the equation:

... n +5 -2√((n+5)(n-10)) + n -10 = 1

Now, we isolate the remaining root and square again.

... 2n -6 = 2√((n+5)(n-10)) . . . collect terms, add 2√( ) -1

... n -3 = √(n²-5n-50) . . . . . . . divide by 2

... n² -6n +9 = n² -5n -50 . . . . square both sides

... 59 = n . . . . . . . . . . . . . . . . . add 50 +6n -n²

5 0
3 years ago
Solve for x, rounding to the nearest hundredth.<br> 10^3x = 98
Anna71 [15]

Answer:

see explanation

Step-by-step explanation:

10^3x=98

1000x=98

x=98/1000

x=49/500

x=0.98

if it is rounded to the nearest hundredth then x=0

8 0
3 years ago
5. A cube is a three-dimensional solid with six square faces.
Bond [772]
Conditionallslslslod
6 0
2 years ago
Felipe made $168 for 8 hours of work. At the same rate, how much would he make for 18 hours of work?
MrMuchimi

Answer: $378

Step-by-step explanation: 18/8=2.25

Multiply 2.25 and 168 to get 378

3 0
3 years ago
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