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tamaranim1 [39]

3 years ago

10

Can someone please help me with this ( -1) + (+8)

2 answers:

kupik [55]3 years ago

8 0

Answer:

<h2>(-1) + (+8) = 7</h2>

Step-by-step explanation:

(+)(+) = (+)

(-)(+) = (+)(-) = (-)

(-)(-) = (+)

--------------------------------------------

(-1) + (+8)= (-1) + 8 <em>use the commutative property a + b = b + a</em>

= 8 + (-1) = 8 - 1 = 7

vodka [1.7K]3 years ago

3 0

Answer:

7

it’s kind of like 8-1 but it’s 8+(-1)

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Quadrant II : cot(x) < 0 → -cot(x) > 0

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Quadrant IV : cot(x) < 0 → -cot(x) > 0

------------------------------------------------------------------

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Answer: a)

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We know that one answer is only true, so we did not check the correctness of the cotangent value, only to the number sign

8 0

3 years ago

Wes used 49 quarts of oil when he changed the oil in 7 cars. Complete and solve the proportion to find how many quarts of oin he

aleksandrvk [35]

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4 years ago

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Step-by-step explanation:

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5 0

3 years ago

Read 2 more answers

Translate into an algebraic expression: n−1 increased by 110%

lorasvet [3.4K]

Answer:

Part 1) The algebraic expression is equal to $1.10(n-1)$ or $1.10n-1.10$

Part 2) The algebraic expression is equal to $\frac{1.10}{n}$

Step-by-step explanation:

Part 1) we have (n-1) increased by 110%

110%=110/100=1.10

so

The algebraic expression of (n-1) increased by 110% is equal to multiply 1.10 by (n-1)

$1.10(n-1)$

Distributed

$1.10n-1.10$

Part 2) we have n^(-1) increased by 110%

110%=110/100=1.10

so

The algebraic expression of n^(-1) increased by 110% is equal to multiply 1.10 by n^(-1)

Remember that

$n^{-1}=\frac{1}{n}$

so

$1.10(n^{-1})=1.10\frac{1}{n}=\frac{1.10}{n}$

4 0

4 years ago