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9966 [12]
3 years ago
15

Select the property of equality used to arrive at the conclusion. If x+8=10, then x=2. The answer choices ate: A. The multiplica

tion property of equality B. The division property of equality or C. The subtraction property of equality
Mathematics
2 answers:
katovenus [111]3 years ago
6 0
C. The subtraction property of equality
because you subtract from both sides yet the problem remains equal
atroni [7]3 years ago
6 0

Answer:

The correct option is C.

Step-by-step explanation:

The given equation is

x+8=10

To solve this equation, we need to subtract 8 from both the sides and this property is known as subtraction property of equality.

According to the subtraction property of equality the equations a=b and a-c=b-c are equivalent.

x+8-8=10-8

x+0=2

Then the conclusion is

x=2

Therefore the correct option is C. Subtraction property of equality is used to arrive at the given conclusion.

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What is the answer and formula for 7f+5=68
gladu [14]
7f=68-5
7f=63
f=63/7
f=9
4 0
3 years ago
Find the value for x
Delvig [45]

Answer:

X = 6°

Step-by-step explanation:

In a set of parallel lines, the opposite angles and corresponding angles are similar. Since the opposite angle of 110° is the corresponding angle of 19x - 4, you can conclude that 19x - 4 = 110° ⇒ 19x = 114° ⇒ x = 6°.

4 0
3 years ago
The first three towers in a sequence are shown. The nth tower is formed by stacking n blocks on top of an n times n square of bl
erik [133]

Answer:

The 99th tower contains 9900 blocks.

Step-by-step explanation:

From the question given, we were told that the nth tower is formed by stacking n blocks on top of an n times n square of blocks. This implies that the number of blocks in n tower will be:

n + n²

Now let us use the diagram to validate the idea.

Tower 1:

n = 1

Number of blocks = 1 + 1² = 2

Tower 2:

Number of blocks = 2 + 2² = 6

Tower 3:

Number of blocks = 3 + 3² = 12

Using same idea, we can obtain the number of blocks in the 99th tower as follow:

Tower 99:

n = 99

Number of blocks = 99 + 99² = 9900

Therefore, the 99th tower contains 9900 blocks.

7 0
3 years ago
Find f'(0.3) for f(x)= the integral from 0 to x of arccos(t)dt
Lady_Fox [76]
\bf \textit{using the 2nd fundamental theorem of calculus}\\\\
\cfrac{dy}{dx}\displaystyle \left[ \int\limits_{0}^{x}\ cos^{-1}(t)dt \right]\implies cos^{-1}(x)
\\\\\\
f'(0.3)\iff cos^{-1}(0.3)\approx 1.26610367277949911126

now.. 0.3 is just a value...we'e assuming Radians for the inverse cosine, so, if you check, make sure your calculator is in Radian mode
8 0
3 years ago
. (a + b)2 – (2a – b)
inn [45]

Answer:

(-b) is the answer.

Step-by-step explanation:

2(a-b)-(2a-b)

=2a-2b-2a+b (opening the brackets)

= -b

Hope this helps you buddy. Have a nice day^_^.

If you have doubt then you can ask in comments. I will surely answer.

3 0
3 years ago
Read 2 more answers
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