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3 years ago

%20%3D%20%7B3%7D%5E%7B2%7D%20%20find%20%5C%3A%20the%20%5C%3A%20value%20%5C%3A%20of%20%5C%3A%20x" id="TexFormula1" title="{3}^{5} \times {3}^{7} \times {3}^{x} = {3}^{2} find \: the \: value \: of \: x" alt="{3}^{5} \times {3}^{7} \times {3}^{x} = {3}^{2} find \: the \: value \: of \: x" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

Irina-Kira [14]3 years ago

3 0

Answer:

The answer is x= -10

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vodka [1.7K]

A= 2 to the power of -1
Because if it's the same base no in multiplication we add the indices and in division we subtract the indicies

4 0

2 years ago

PLEASE HELP I WILL GIVE A LOT OF POINTS

FromTheMoon [43]

Answer:

765 ft

Step-by-step explanation:

1/2(30 times 22)=330 times 2= 660+ 1/2(21 times 10)=105

3 0

3 years ago

Read 2 more answers

The expression for finding the perimeter of a octogon with equal sides is8 where s is the length of one side . Evaluate this exp

Sav [38]

Answer:

48 inches

Step-by-step explanation:

Put the value of the variable where the variable is in the expression and do the arithmetic.

P = 8s

P = 8(6 in)

P = 48 in

The perimeter of the octagon is 48 inches.

7 0

3 years ago

PLEASE HELP!!!!!! TIMED QUESTION!!!! FIRST CORRECT ANSWER WILL GET BRAINLIEST....PLEASE ANSWER NOW!!!!

Margarita [4]

Answer:

Option (3)

Step-by-step explanation:

From the picture attached,

Bar graph sketched shows the grades earned by the students in an exam.

Number of students who achieved the grade A = 17

Number of students who achieved grade B = 14

Number of students with grade C = 5

Number of students with grade D = 9

Total students who took the exam = 17 + 14 + 5 + 9 = 45

Option (1)

" $\frac{1}{5}$ of the students earned a C"

Fraction of students who earned C = $\frac{\text{Students who earned C}}{\text{Total students}}$

= $\frac{5}{45}$

= $\frac{1}{9}$

Therefore, this option is incorrect.

Option (2)

"3% more students earned an A then B"

Percentage of students who earned A = $\frac{\text{Students got A}}{\text{Total students who took the exam}}\times 100$

= $\frac{17}{45}\times 100$

= 37.78%

Percentage of students who earned B = $\frac{\text{Students got B}}{\text{Total students who took the exam}}\times 100$

= $\frac{14}{45}\times 100$

= 31.11%

Difference in percentage = 37.78 - 31.11

= 6.67%

Therefore, this option is not correct.

Option (3)

"20% of the students earned a D"

Percentage of students who earned D = $\frac{\text{Students got D}}{\text{Total students who took the exam}}\times 100$

= $\frac{9}{45}\times 100$

= 20%

Option (3) is the correct option.

Option (4)

" $\frac{1}{4}$ of the class earned a B"

Fraction of class who earned B = $\frac{\text{Students got B}}{\text{Total students who took the exam}}$

= $\frac{14}{45}$

Therefore, Option (4) is not correct.

6 0

2 years ago

Find the standard deviation of

Kruka [31]

Answer:

11.5

The sample standard deviation measures the spread of a data distribution of the sample. It is usually used to estimate the population standard deviation

7 0

2 years ago