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3 years ago

Helping my sister with combining like terms & I just need some refreshing here is my question:

Mathematics

2 answers:

Mashutka [201]3 years ago

7 0

Answer,

= -4n - 3

Explanation,

Combine Like Terms:

= n + 4 + −9 + −5n

= (n + −5n) + (4 + −9)

= −4n + −5

Hope This Helps :-)

denpristay [2]3 years ago

3 0

Answer:

-5-4n

Step-by-step explanation:

add 4 + -9 = -5

add n + -5n= -4n

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Alekssandra [29.7K]

Answer:

Answer is A.

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3 years ago

A dice is rolled 2 times. What is the probability of showing a 5 on every roll Round to 4 decimal places

AlexFokin [52]

Answer:

0.0278

Step-by-step explanation:

(1/6)(1/6) = 1/36 = 0.0278

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3 years ago

Which expressions are equivalent to the given sort 40 (there is more than one and the one selected is correct)

Basile [38]

Answer:

$40 {}^{ \frac{1}{2} }$

Step-by-step explanation:

The last one is also the answer

Using the rational exponet rule,

$\sqrt[n]{ {x}^{m} } = x {}^{ \frac{m}{n} }$

Using this number,

$\sqrt{40}$

40 is the base so it will stay same. Remember this is a square root sign so our nth root is 2 so our denominator if the rational exponet is 2.

$40 {}^{1} = 40$

so our numerator is 1 so

$40 {}^{ \frac{1}{2} }$

3 0

3 years ago

Factor x^2a^2 + 3xa^2 + 2a^2. Show your work.

kotegsom [21]

$x^2a^2 + 3xa^2 + 2a^2= \\ a^2(x^2+3x+2)= \\a^2(x^2+2x +x+2)= \\a^2(x(x+2)+(x+2))= \\a^2(x+2)(x+1)$

4 0

3 years ago

Can you help me ? please ??

natali 33 [55]

60 miles per hour
so 156 miles = 156 /60 = 2.6 hours
0.6 x 60 = 36
so 2.6 hours = 2 hours 36 minutes

Kim leaves Rotherham at 7: 30AM
7:30 AM + 2 hours 36 minutes = 10:06 AM

Answer
Kim arrives in London after 10AM

6 0

3 years ago