9 mi 12 mi What is the length of the hypotenuse? miles

Solve for x.. . -ax + 2b > 8. A. x < the quantity negative 2 times b plus 8 all over negative a. . B. x > the quantity

Fofino [41]

- a x + 2 b > 8
- ax > - 2 b + 8 /*(-1)
a x < 2 b - 8
x < ( 2 b - 8 ) / a
x < (- 2 b + 8) /(-a)
Answer. A ) x < the quantity negative 2 times b plus 8 all over negative a

4 0

3 years ago

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Which of the following properties is represented by (ab)c = a(bc)?

DochEvi [55]

Answer:

Associative Property of Multiplication

Step-by-step explanation:

We are given three numbers-a,b,c.

We are given the property (ab)c = a(bc)

This implies that on the left hand side we first multiply a and b and then multiply the result by c. On the right side of the equation, we first multiply b and c and multiply a with the product of b and c.

As per the given property, the result in both the cases is the same.

This signifies the associative property of multiplication where the result is independent of the order of operation.

3 0

3 years ago

Grace is looking at a report of her monthly cell-phone usage for the last year to determine if she needs to upgrade her plan. Th

Alisiya [41]

Answer:

s ≈ 105

Step-by-step explanation:

Given:

The data set: 700, 735, 680, 890, 755, 740, 670, 785, 805, 1050, 820, 750

To find:

The standard deviation of the data

Steps:

To find the standard deviation, first write the computational formula for the standard deviation of the sample.

${s}= \sqrt{\frac{{\sum}{x^2} - \frac{({\sum}{x})^2}{n}}{n - 1}}$

Take the square root of the answer found in step 7 above. This number is the standard deviation of the sample. It is symbolized by $s$ . Here, we round the standard deviation to the nearest whole number.