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3 years ago

300-(-64*32)/2 / = divided

Mathematics

1 answer:

Klio2033 [76]3 years ago

8 0

1324 should be your answer if you use order of operations

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2x+9 = 35 solve for x

Olenka [21]

Answer:

x=13

Step-by-step explanation:

2x+9=35

2x=35-9

2x=26

x=26/2

x=13

5 0

3 years ago

2. Use Structure The area of a rectangular

VMariaS [17]

Answer:

12 (18+x)

Step-by-step explanation:

7 0

3 years ago

ASAP please it’s very important

zaharov [31]

Answer:

x = 30° and 330°

Step-by-step explanation:

Assuming the intervals is {0 , 2π} or {0° , 360°}

$tan\ x=\frac{-\sqrt{3} }{3} \\\\x=tan^{-1} (\frac{-\sqrt{3} }{3})\\\\x = -30$

So it means it lies in the 2nd and 4th quadrant because tangent is negative in the 2nd and 4th quadrant

so the two solutions are

x = 30° and 330° or

$x=\frac{\pi }{6}\ radians\ \ , \ \ \frac{11\pi }{6}\ radians$

4 0

3 years ago

The average and standard deviation of a measurement is 15.0 ± 5.0. if 100 students measured the value, how many would you expect

AURORKA [14]

Solution: We are given:

$\mu=15, \sigma=5$

Using the empirical rule, we have:

$\mu \pm \sigma$ covers 68% of data.

Also the percentage of values below mean = Percentage of values above mean = 50%

Now, let's find the z score for x=20

$z=\frac{20-15}{5}=1$

Therefore, the percentage of values greater than 1 standard deviation above mean $50\% - \frac{68\%}{2} =50\%-34\%=16%$

Expected number of students = 16% of 100 = 16

4 0

4 years ago

Please help.........................

astraxan [27]

<span>The diameter in centimeters (cm) of a human hair is about 0.0025 cm. In terms of scientific notation, it is written as 2.5 x 1</span><span>0^-3 cm</span>

7 0

4 years ago