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3 years ago

Evaluate m( m + n) - n, use m = 5 and n = -3

Mathematics

2 answers:

notsponge [240]3 years ago

8 0

Answer:

B. 13

Step-by-step explanation:

replace variables

5(5-3)+3

distribute

5(2)+3

multiply

10+3

add

Alona [7]3 years ago

4 0

Answer:

m (m + n) - n

= 5 (5+(-3)) - (-3)

= 5 (5-3) + 3

= 5 x 2 + 3

= 10+3

= 13

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What two numbers multiply to equal 50 and add up to equal -15

Tanzania [10]

The two numbers are 5,10. Which is multiply to equal 50 and add up to equal 15.

Step-by-step explanation:

Step:1

Let, X,Y.

Where X, Y are two numbers.

Step:2

Form the Multiplication equation from given,

X×Y=50 (∵ Multiply to equal 50)

Step:3

Form Addition equation from given,

X+Y= 15 (∵ Add equal to 15)

Step:4

Check for alternatives to satisfy both equations

Assume, X=1, Y=14

1+14=15 (Satisfy addition equation)

1×14=14 (Not satisfy multiplication equation)

Assume, X=2, Y=13

2+13=15 (Satisfy addition equation)

2×13=26 (Not satisfy multiplication equation)

similarly.,

assume X=5, Y=10

5+10=15 (Satisfy addition equation)

5×10=50 (Satisfy multiplication equation)

So, the two numbers are 5,10.

7 0

4 years ago

Evalute this integral

enot [183]

Answer:

(1/2)sin(2x) + C

Step-by-step explanation:

$y=2x\\\frac{dy}{dx} =2\\\ dx=\frac{dy}{2} \\\int\limits {cos 2x} \, dx \\\int\limits {cos(y) } \, \frac{dy}{2} =\frac{1}{2} \\\int\limits {cos(y) } \, dy=\frac{1}{2}sin(y) \\ substitute / y=2x\\\int\limits {cos 2x} \, dx = \frac{1}{2}sin(2x) +C$

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3 years ago

Please help. I suck at geometry

Natasha_Volkova [10]

Answer:

Complementary angle is 90 degree and supplementary angle is 180 degree

8 0

3 years ago

S is the set of states in the U.S. that border georgia. Alabama∈S

lapo4ka [179]

The elements of the set S are Tennessee, South Carolina, Florida, and Alabama.

A set is a collection of well-defined items or objects.

The items that are found in a set are called the elements of the set.

For example, given a set S, which is the set of states in the U.S. that border Georgia.

The US state Georgia is bordered by Tennessee in the north, South Carolina and the Atlantic Ocean in the east, Florida in the south, and Alabama in the west.

Therefore, the elements of the set S = Tennessee, South Carolina, Florida, and Alabama.

In conclusion, a set consists of well-defined items.

Learn more about sets at: brainly.com/question/2166579

#SPJ1

8 0

2 years ago

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juin [17]

Answer: Easy

Step-by-step explanation:

a - 2b/3

3 0

3 years ago