What is the value of 5(7) + 4(-3)

Mathematics

2 answers:

Mademuasel [1]4 years ago

7 0

The answer is 23 since you have different signs you subtract 12 from 35. Once you subtract 12 from 13 you get 28.

andrew11 [14]4 years ago

3 0

Your answer would be 23

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Drupady [299]

Answer:

B. The weather report is neither accurate nor precise.

Step-by-step explanation:

A measurement is accurate when it correctly describes the actual value. The report gives a possible range for the temperature, but the actual temperature is not in that range. That means the report is not accurate.

A measurement is more precise when the place value of its least significant digit is smaller. The weather report gives temperatures accurate to the nearest 10 degrees. The measurement of the actual temperature is reported to the nearest 0.1 degrees, better resolution. The report is not very precise.

We can conclude the weather report is neither accurate nor precise.

6 0

3 years ago

Find the distance between (2,3) and (-4,9). If you get a radical (square

9966 [12]

Answer:

Length is 6√2 units or 8.49 units

Step-by-step explanation:

Length formular:

$length = \sqrt{ {(x _{2} - x_{1}) }^{2} + {(y_{2} - y_{1})}^{2} }$

x1 is 2

x2 is -4

y1 is 3

y2 is 9

$length = \sqrt{ {( - 4 - 2)}^{2} + {(9 - 3)}^{2} } \\ \\ = \sqrt{ {( - 6)}^{2} + {6}^{2} } \\ \\ = \sqrt{36 + 36} \\ = \sqrt{2 \times 36} \\ = \sqrt{2} \times \sqrt{36} \\ { \boxed{ \boxed{= 6 \sqrt{2} }}} \\ = 8.49 \: units$