3 years ago

-4-5+4+ (-5)−4−5+4+(−5} What the answer ?

Mathematics

2 answers:

lyudmila [28]3 years ago

6 0

Answer = -20
-4-5+4+(-5)-4-5+4+(-5) =-20

Shkiper50 [21]3 years ago

6 0

Answer:

-20

Step-by-step explanation:

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Kathleen correctly determines four arithmetic means between −7 and 14. What values does Kathleen determine?

Annette [7]

Answer:

Kathleen determines the four arithmetic means to be −2.8 , 1.4, 5.6, and 9.8.

Step-by-step explanation:

The overall interval is 14 -(-7) = 21 units in length. The four equally-spaced "means" divide the interval into 5 equal parts, each one of which is ...

21/5 = 4.2

The four means are ...

-7 +4.2 = -2.8

-2.8 +4.2 = 1.4

1.4 +4.2 = 5.6

5.6 +4.2 = 9.8

5 0

3 years ago

What is 2(x+14)+(2x-14

lawyer [7]

2x+28+2x-14
————————
4x+14

5 0

3 years ago

?????????????????????

valentinak56 [21]

Step-by-step explanation:

$\huge \: 2 \sqrt{x} .4 {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 2.4 {x}^{ \frac{1}{2} } . {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1}{2} - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1 - 5}{2} } \\ \\ \huge \: = 8 {x}^{ - \frac{4}{2} } \\ \\ \huge \: = 8. {x}^{ - 2} \\$