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Ivenika [448]
3 years ago
11

Find the value of a square + b square when a+b = 6 a_b = 4

Mathematics
1 answer:
Vanyuwa [196]3 years ago
4 0

Answer:

a+b=6

a-b =4

______subtract

(a-a)+(b-(-b))=6-4

0+2b = 2

b= 1

put the value of b at any equation

a+1 =6

then a=6-1=5

a square+b square= 25+1= 26

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Pete adds 78 to the fata set below. 20,32,32,45,50. Which statement below will be true?
ozzi

Answer:

the inter-quartile range will increase

Step-by-step explanation:

The initial data-set was;

20,32,32,45,50

Adding a new value 78 will have several effects;

The mean of the new set of values will increase since 78 is mostly likely to be an outlier.

The median of the new data set will increase. The median of the old data set is 32 while that of the new data set will be 38.5

The mode is the most frequent observation. Both the new and the old sets of values will have a mode of 32. The mode will therefore remain the same.

The inter-quartile range just like the range will increase

4 0
3 years ago
What is the solution of log, 729= 3?<br> Of<br> 18<br> 81
Reptile [31]
Answer:
Solution
Step-by-step explanation:
Rewrite logx729= 3 is an exponential form using the definition of a logarithm. If x and b are positive real numbers and b≠1, then logb(x)= y is equivalent to b^y = x.
X^3 = 729
Take cube root on both side and we get
x= 3√729
now we firstly simplify the 3√729
Rewrite 729 as 9^3
x = 3√9^3
pull terms out from under the redical, assuming positive real numbers
x=9
verify each of the solution by substituting them into logx729=3 and solving.
x= 9
5 0
3 years ago
What is the volume of the pyramid in the diagram?<br> 25 cm<br> h = 15 cm<br> 15 cm<br> 20 cm
charle [14.2K]

Answer:the answer is 2,500 cm^3

Step-by-step explanation:

4 0
3 years ago
Write an expression for 40% of 25
Montano1993 [528]

For this case we must find an expression to find 40% of 25. So, we make a rule of three:

25 -----------> 100%

x -------------> 40%

Where "x" represents the amount that determines 40% of 25.

x = \frac {40 * 25} {100}\\x = 10

40% of 25 is 10. And an expression to find it is:

x = \frac {40 * 25} {100}

Answer:

x = \frac {40 * 25} {100}


8 0
3 years ago
Read 2 more answers
Solve for x 8-2x = 5( x4) ​
MissTica
4/11 because when you multiply 5x4x you get 20x , so 8-2x=20x. Then you move the terms with variables and get -2x-20x=-8. This gives you the answer that -22x=8 and when u divide by 22 to both sides, you get 4/11.
5 0
3 years ago
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