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FrozenT [24]
3 years ago
9

s the value of 3 +(-3) what is the value of (-10.4) + 10.4? these pairs of numbers are called opposites. what is the sum of a nu

mber and its opposite?
Mathematics
2 answers:
anzhelika [568]3 years ago
7 0

we have given that 3+(-3) and (10.4)+(-10.4).

we know that a property (a)+(-b)=a-b.

so (3)+(-3) and (10.4)+(-10.4)=0.

these number are called opposites because they have same value but opposite signs.

so the number and opposite of a number is added always equal to 0.

ICE Princess25 [194]3 years ago
4 0
It must be equal to 0
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Can i have some help with this?
irina [24]

Answer:

10.75 cm^2

Step-by-step explanation:

1. Area of semicircle, A= (pi x R^2) divided by 2

2. A= (3.14 x 5^2) divided by 2 = 39.25

3. Area of rectangle, A= l x w

4 A= 10 x 5 = 50

5. subtract

6. 50 - 39.25

7. 10.75

6 0
3 years ago
Can you guys help me how to solve this step by step
GaryK [48]
Area of rectangle = Length x width, Area of triangle - (1/2) base x height
Surface Area is the sum of the area of all of the faces.

Your picture has 5 faces:
1) rectangle on the left
2) square in the middle
3) rectangle on the right
4 & 5) 2 congruent (identical) right triangles

Area of face #1: 5 x 4 = 20
Area of face #2: 4 x 4 = 16
Area of face #3: 3 x 4 = 12
Area of face #4: (1/2) x 3 x 4 = 6
Area of face #5: (1/2) x 3 x 4 = 6
Sum of the Area of the faces: 60

Answer: Surface Area of the figure is 60 units²

Volume = Length x width x height
             =     5      x    4    x     3
             = 60 units³

Answer: Volume of the figure is 60 units³



7 0
3 years ago
Read 2 more answers
Which is a solution of x2 – x – StartFraction 3 Over 4 EndFraction = 0?
Anna [14]

Answer:

x = - \frac{1}{2}, x = \frac{3}{2}

Step-by-step explanation:

Given

x² - x - \frac{3}{4} = 0 ( add \frac{3}{4} to both sides )

x² - x = \frac{3}{4}

Solve using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2( - \frac{1}{2} )x + \frac{1}{4} = \frac{3}{4} + \frac{1}{4}

(x - \frac{1}{2} )² = 1 ( take the square root of both sides )

x - \frac{1}{2} = ± 1 ( add \frac{1}{2} to both sides )

x = \frac{1}{2} ± 1

Thus

x = \frac{1}{2} - 1 = - \frac{1}{2}

x = \frac{1}{2} + 1 = \frac{3}{2}

4 0
3 years ago
Read 2 more answers
11. Solve 5(2x – 3) = x – 15 + 9x for x.
zepelin [54]

Answer:

\boxed{\bold{True \ For \ All \ x}}

Explanation:

[ Step One ] Group Like Terms

\bold{5\left(2x-3\right)=x+9x-15}

[ Step Two ] Combine Similar Elements: \bold{x+9x=10x}

\bold{5\left(2x-3\right)=10x-15}

[ Step Three ] Expand \bold{5\left(2x-3\right): \ 10x-15}

\bold{10x-15=10x-15}

[ Step Four ] Add 15 To Both Sides

\bold{10x-15+15=10x-15+15}

[ Step Five ] Simplify

\bold{10x=10x}

[ Step Six ] Subtract 10x From Both Sides

\bold{10x-10x=10x-10x}

[ Step Seven ] Simplify

\bold{0=0}

[ \boxed{\bold{Final \ Answer}} ]

➤ \bold{Both \ Sides \ Are \ Equal, \ True \ For \ All \ x}

\boxed{\bold{Mordancy}}

4 0
3 years ago
Find the slope of the line that passes through (-10, -52) and (56, -37).
hichkok12 [17]
15/66 I think you might be able to simplify
5 0
2 years ago
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