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Alexandra [31]
4 years ago
10

Which expression is equivalent to 4(42)

Mathematics
2 answers:
Maurinko [17]4 years ago
7 0

Answer:

4 x 42

OR

4·42

Step-by-step explanation:

A number outside of parentheses usually indicates that the number is meant to be multiplied with the values inside of the parentheses. In this case, you'd multiply 4 and 42- which could just as easily be expressed as 4 x 42 or 4·42.

navik [9.2K]4 years ago
6 0

Answer:

40+2=42 or 20+22=42

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Four w plus ten equals negative w
ohaa [14]

Answer:

4w+10=-w

w=-2

Step-by-step explanation:

First, write out the equation in the algebraic form to make it easier to solve. This equation written out is 4w+10=-w. Then, isolate the variable and solve. Do this by subtracting 4w from both sides. Then, divide both sides by -5.

  • 4w+10=-w
  • 10=-5w
  • -2=w
4 0
3 years ago
Why is it important to calculate the distance between two points on a cartesian coordinate plane?
Gwar [14]

Answer:

Derived from the Pythagorean Theorem, the distance formula is used to find the distance between two points in the plane. The Pythagorean Theorem,

a

2

+

b

2

=

c

2

, is based on a right triangle where a and b are the lengths of the legs adjacent to the right angle, and c is the length of the hypotenuse. The relationship of sides

|

x

2

−

x

1

|

and

|

y

2

−

y

1

|

to side d is the same as that of sides a and b to side c. We use the absolute value symbol to indicate that the length is a positive number because the absolute value of any number is positive. (For example,

|

−

3

|

=

3

. ) The symbols

|

x

2

−

x

1

|

and

|

y

2

−

y

1

|

indicate that the lengths of the sides of the triangle are positive. To find the length c, take the square root of both sides of the Pythagorean Theorem.

c

2

=

a

2

+

b

2

→

c

=

√

a

2

+

b

2

It follows that the distance formula is given as

d

2

=

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

→

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

We do not have to use the absolute value symbols in this definition because any number squared is positive.

A GENERAL NOTE: THE DISTANCE FORMULA

Given endpoints

(

x

1

,

y

1

)

and

(

x

2

,

y

2

)

, the distance between two points is given by

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

Step-by-step explanation:

4 0
3 years ago
What is the value of a?<br><br> A. 42.6<br> B. 31.6<br> C. 26.6
Karo-lina-s [1.5K]

Answer:31.6

Step-by-step explanation: i did the test

6 0
2 years ago
300 30 3 0.3 follow pattern
natita [175]
.03 .003 .0003....etc
5 0
3 years ago
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45°<br> 9<br> X<br> Find the value of x. Write your answer in simplest form.
kap26 [50]

9514 1404 393

Answer:

  x = (9/2)√2 = 4.5√2

Step-by-step explanation:

We know the hypotenuse of an isosceles right triangle is √2 times the length of the side:

  9 = x·√2

  9√2 = 2x . . . . multiply by √2

  (9/2)√2 = x . . . divide by 2

4 0
3 years ago
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