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Ilia_Sergeevich [38]
3 years ago
11

Which symbol replaces ? To make the statement true?

Mathematics
1 answer:
DedPeter [7]3 years ago
8 0
A is the correct answer.
You might be interested in
3. What is the scale factor of Figure B to Figure A?
xxMikexx [17]

Answer:

2.5

Step-by-step explanation:

From the diagram, figure B was enlarged to obtain figure A.

The two figures are therefore similar.

The corresponding sides are in the same proportion. That constant value of the proportion is called scale factor.

It is given by:

k =  \frac{image \: length}{corresponding\:object \: length}

Figure B is the image of A

k =  \frac{10}{4}  =  \frac{25}{10}  = \frac{21.5}{8.6} =   2.5

Therefore the scale factor is 2.5

4 0
3 years ago
Evaluate the expression when a = 4 and b = 6. 8a – 4b + 5 A. 15 B. 7 C. 19 D. 13
yaroslaw [1]
4 and b = 6 is D.) 13
4 0
3 years ago
I need a step by step I got lost in learning
alexandr402 [8]

Answer:

6 to the power of 2.

Step-by-step explanation:

 Recall that whenever you divide exponents with the same base, you subtract the powers, but the base will still be the same. Therefore, 6 to the power of 12 divided by 6 to the power of 10 is 6 to the power of 2. Subtract the powers (exponents) or 12 minus 10, and you get 2. Since the base doesn't change, it is still 6. The solution to this expression is 6 to the power of 2. Hope this helps!

8 0
3 years ago
Solve for the equation of value of x(show your solution)
sertanlavr [38]

Answer:

2. ) {25}^{2x} - 1 = {125}^{3x} + 4

=> {25}^{2x} = {125}^{3x} + 4 +1

=> {(5)^(2)}^{2x} = {(5)^(3)}^{3x} + {5}^{1}

=> {5}^{4x} = {5}^{9x} + {5}^{1}

=> 4x = 9x + 1

=> 4x - 9x = 1

=> - 5x = 1

=> x = 1/-5

7 0
3 years ago
Find the length of the missing side, x=
Paladinen [302]

{x}^{2}  +  {11.9}^{2}  =   {14.7}^{2}  \\ x =  \sqrt{ {14.7}^{2}  -  {11.9}^{2} }  \\  x =  \sqrt{74.48}  \\  x =  8.6301796042...

Answer: 9 or 8.6

  • I don't know, need I round to 8.6 or 9, so you can try both answers
8 0
3 years ago
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